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What Is a Slide Rail Shoring System?

Shoring systems are used during excavations in order to reinforce trench walls and prevent cave-ins. Slide rail shoring is a type of modular component shoring system that’s used in place of driven tight sheeting or build-in-place timber shoring systems. Slide rail shoring is unique in that it employs a “dig and push” installation method that allows for quick, efficient setup. Furthermore, this dig and push method can reduce cave-ins and trench collapse that might occur during the excavation, and which is common in other excavation methods.

What are the Benefits of Slide Rail Shoring?

Slide rail shoring is a durable, modular component system that allows workers to push the system in place while digging the excavation to depth. Due to its design, the components of a slide rail shoring system require only smaller, more accessible machines during installation and removal than those needed to dig the same excavation using tight sheeting or trench shields. Furthermore, the individual components of a slide rail system are lighter and easier to handle than large trench shields.Slide rail shoring systems can be used for a wide range of applications and provide enhanced safety for both personnel and those in nearby structures. When used properly, these systems allow for exceptional pipe clearance and large free span work zones. Rolling carts can be moved up and down the spreader assemblies as needed for the placement of equipment, and to change the free span work zone provided by the system.Slide rail systems allow for flexibility, especially when encountering crossing utilities or underground obstacles. Many of the components of these systems are designed to allow for safe and quick installation of protective systems around such obstacles so that a project can continue without large time delays or costly disruptions. When compared to traditional tight sheeting, sloping or complex trench shield assemblies, a slide rail shoring system:
  • Controls and prevents ground sagging and collapse
  • Provides more clearance than standard trench shields
  • Minimizes site repair costs
  • Enables the use of smaller, more common size excavators
  • Decreases the overall time needed to install and remove installation the system

Where Should Slide Rail Shoring Be Used?

Slide rail shoring systems are designed for a wide range of applications. These systems can be used on a variety of job sites, including:
  • Tank installations
  • Restricted areas
  • Areas with poor soil conditions
  • Areas that are sensitive to vibration
  • Near rail roads
  • Soil remediation
  • Bore pits
  • Pump stations
  • Cast-in-place
  • Linear pipeline runs

Buy and Sell with Eiffel Trading

In addition to used slide rail systems, Eiffel Trading is also a trusted source for used shoring towers, used trench boxes, and so much more. In addition to used equipment options, our online marketplace also boasts a wide range of new and used materials, including used precast traffic barrier, brand new h-pile beams, used access trestle, and more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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What Is Shoring?

Shoring is a system used to support a structure to prevent it from collapsing during construction. Usually, shoring is employed during building alterations, repairs, or when there is a risk of structure failure.Shoring is most commonly used during the earliest phases of construction, when walls are undergoing reinforcement, when there are large openings in a wall (such as a doorway or archway that is being built), and when a nearby structure needs to be demolished (to prevent the shored building from crumbling along with it). Shoring is also utilized during excavations in order to reinforce trenches; trenches are notoriously unstable and can cave in, but shoring a trench can help stabilize the walls and keep workers safe.

Shoring vs. Scaffolding

Though both are temporary systems used during construction, shoring and scaffolding are not the same. Scaffolding is a structure that provides support for workers. When a scaffolding is in place, workers can stand on its platforms to carry out tasks such as painting, plastering, and bricklaying. In contrast, shoring is only used to support a structure and to prevent collapse. Shoring is not meant to be stood upon by workers.

What Type of Structures Do Shoring Support?

Shoring systems support two main types of structures: buildings and trenches.For buildings, there are several types of shoring, including raking shores and foundation shores. In the case of raking shores, inclined members called rakers give temporary lateral support to an unsafe wall. For building foundations, a shoring system such as piles and lagging support the surrounding loads until the underground levels of the building are completed and can bear the weight of the rest of the building.For trenches, there are three main types of shoring systems: hydraulic shoring (employing the use of hydraulic pistons that can be pumped outward to press against the trench walls); beams and plate shoring (created from steel I-beams); and soil nailing (where the trench is reinforced with relatively slender elements, such as steel reinforcing bars). In all cases, trench shoring is meant to steady the trench walls to prevent cave-ins.

What are the Benefits of Shoring?

Shoring supports trench walls and prevents structure collapse. Shoring systems are used as a preventative measure to hold unstable structures in place while construction is underway. Shoring also prevents trench cave-ins, which is vital to the safety of workers.If a site collapses, it’s not only dangerous to workers, but it can cause delays, which puts the contractor behind schedule. Shoring a trench or building helps ensure that a project runs smoothly.Shoring reduces costs. Collapsed excavations lead to damage and loss of work. By preventing such collapses, shoring ensures the efficiency of workers and prevents wasted resources and delays that inevitably result from a collapse.Finally, shoring gives workers peace of mind. When working on an unstable building or in a trench, workers don't have to worry about structure collapse or cave-ins, meaning they can do their jobs with less stress and a better working environment.

Buy and Sell with Eiffel Trading

In addition to used shoring towers and used slide rail systems, Eiffel Trading’s online marketplace sells additional equipment including used concrete formwork, used pile breakers, and more. When it comes to used materials, our inventory ranges from used f-shape barrier wall, to used steel pipe pile, to used hdpe pipe, and everything in between.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing for free.Ready to sell your used heavy equipment or construction material? List your products today for free on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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Eiffel 101: Pile Driver Troubleshooting Guide

Some pile driving problems are more common that others. Here, we take a look at the most prevalent pile driving issues and their solutions.

The Bearing Pile Blow Count Changes Quickly or Decreases

If the blow count for a group of pilings quickly changes or decreases, check the soil conditions using borings. Borings can be used to indicate a weathered profile above the bedrock or bearing layer. If the borings do not indicate a weathered profile, damage to the pile toe is possible. Internally inspect the pile toes for damage, if possible. If piles cannot be internally inspected, dynamic measurements can be taken to evaluate the problem. As a last resort, piles can be extracted to determine the issue.

The Blow Count Is Lower than Expected

If blow counts are slightly lower than expected, it's usually due to soil resistance that is also lower than expected. Restrike testing can be used to determine if this is the case. If blow counts are significantly lower than expected, review the soil borings. If they don't show soft layers, the problem could be that the pile is damaged below grade.

Piles Drive Much Deeper Than Expected

If piles are driving much deeper than expected, it could be because the soil resistance is lower than originally thought, or because the driving system is performing better than estimated. Restrike tests can be performed to evaluate soil strength changes. If the ultimate capacity based on restrike blow count remains low, check the drive system performance and restrike capacity. It's possible that soil conditions are weaker than estimated, and foundation piles will need to be driven deeper than estimated.

The Blow Count Exceeds Penetration Requirements

Before driving a pile, a soil analysis can be used to predict the number of blows required to drive the pile to its planned depth. If this analysis shows that the number of blows exceeds the expectation, there could be a problem with the driving system or the soil. Make sure that the pile has good drivability and that the driving system matches the type of pile. You can also check the driving system operation to ensure it conforms with the manufacturers guidelines.If neither options result in a solution, take dynamic measurements to see if the problem is coming from the driving system or the soil. Some common problems with driving systems include preignition, preadmission, low hammer efficiency, or a too soft cushion. Issues with the soil include greater soil strength than expected, high soil resistance, large soil quakes, or high soil damping.

Installed Piles Move Laterally When New Piles are Driven

If existing piles move during the installation of new piles, it's usually because of soil displacement. Possible solutions include redriving the installed piles, switching the sequence of pile installation, or predrilling the pile locations to reduce ground movement.

Driven Piles Are Moving Out of Alignment

If piles are driving out of alignment, it's usually due to control issues with the hammer-pile alignment, or because of soil conditions. If the problem has to do with hammer-pile alignment, a pile gate, template, or fixed lead system can fix the problem. If the problem stems from soil conditions, check to see if there are near-surface obstructions or bedrock that slopes steeply, which can disrupt alignment.

The Head of the Pile Is Deformed

The head of a pile might deform because of an incorrect helmet size, too week of steel strength, or unevenness of the pile head. To determine the problem, check for each of these issues, as well as for the calculated stress on the pile head. If the calculated stress is high and the blow count is low, reduce the number of hammer strokes. For high blow counts, a different type of pile may be required.

There are No Hammers Available Meeting the Resistance Limits

If there are any aren't hammers available that meet the driving stress and resistant limits set by the wave analysis, it's possible that both the calculated stresses and blow counts on the piles are too high. To solve this problem, you can increase the pile impedance or redesign for lower capacities.

Piles Hit Underground Obstructions

If piles encounter underground obstructions during driving, the project engineer will need to create a remedial design. The ultimate bearing capacity of piles that have hit obstructions will be reduced based on the damage to the pile and the soil composition. It's possible that the new plan will include the use of additional piles to compensate.

Buy and Sell with Eiffel Trading

Eiffel Trading is your one-stop-shop for all things piling! Structural steel is our bread-and-butter, with our inventory ranging to include used sheet pile, brand new w beams, used pipe pile, and much more. Additionally, our online marketplace boasts foundation equipment such as pile driving machines, vibratory hammers, impact hammers, and much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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Eiffel 101: How to Sell Your Trench Boxes

When listing your trench boxes for sale, there are five basic steps you should take to attract the attention of potential buyers: clean the trench boxes before listing, take good quality photos, include detailed information about the boxes, set a fair market price, and be upfront about wear and tear.

1. Clean the Trench Boxes Before Listing

Before listing your trench boxes for sale, it's important to make them as appealing to a buyer as possible. Take the time to remove all dirt and debris from the trench boxes, so that when you take photos to post in the listing, the trench boxes look well cared for and ready for use. This also allows potential buyers to better see the true condition of the trench boxes.

2. Take Quality Photos in Good Light

High quality photos give potential buyers a better sense of what you’re offering, which can make them more likely to act. You don’t need expensive camera equipment to get the best shot; good-quality daylight and a clean phone lens is sufficient. Aim to take multiple photos of your trench boxes from different angles to showcase the boxes in their entirety. Furthermore, because buyers want to know what they’re purchasing and might hesitate to complete a sale if they can’t view the entire trench box, take photos of the boxes after uninstalling.

3. Include Detailed Information

If your listing is incomplete, a potential buyer will likely not contact you to ask for your trench box’s details; make it easy for them by including all relevant information in the listing, including dimensions, the manufacturer, and how long the trench box has been in use. Sometimes, listing the former applications of the trench boxes can be useful to a potential buyer! Typically, the rule of thumb is “the more information, the better!”. Since our marketplace is online, buyers feel more secure in their purchases with an abundance of information.

4. Set Trench Boxes at a Fair Market Price

If your trench boxes aren’t selling, it might be because you’re failing to match the used market’s going rate. Do some research on the price of similar trench boxes to ensure your prices are competitive. A fair price will also reflect the condition of the trench boxes, the location of the trench boxes (for example, if they are located in a remote area, it is often advantageous to price them lower to offset the higher cost of freight), and other relative factors.

5. Be Upfront About Wear and Tear

Never attempt to trick buyers into overlooking a trench box’s wear and tear. Instead, be upfront about rust or abnormalities in your trench boxes and price them accordingly. As mentioned earlier, the more information presented to buyers… the better!

Buy and Sell with Eiffel Trading

Eiffel Trading is a one-of-a-kind marketplace for used, surplus, and new materials and equipment for heavy civil and marine contractors. In addition to used trench boxes, our used equipment listings also include used shoring towers, used sectional barges, used pile driving machiens, and so much more. Furthermore, our material inventory ranges from brand new steel plates (and used!), used crane access trestle, used and surplus traffic barrier, and so much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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Eiffel 101: How to Sell Your Shoring Towers

Before you list your shoring towers for sale, there are a few steps you can take to attract potential buyers, including cleaning the towers to make them more appealing, taking good quality photos, including detailed specs, setting a fair market price and being upfront about wear and tear.

1. Remove Dirt and Debris from the Shoring Towers

Before listing your shoring towers for sale, it's important to make them as visually appealing as possible. Take the time to remove all dirt and debris so that when you take photos for the listing, the towers look well-maintained and ready for their next project.

2. Take High Quality Photos in Natural Light

High quality photos allow potential buyers to see what you’re offering, which can make them more likely to complete a sale. You don’t need an expensive camera to get the best shot; good daylight and a clean phone lens is sufficient. Aim to take at least a dozen photos of your shoring towers from different angles to give an online buyer a clear picture. Furthermore, take photos only after uninstalling the shoring towers so that buyers can see exactly what they’re purchasing.

3. Include Detailed Information

If your listing is incomplete, a potential buyer will likely not put in the extra work to contact you for details. Make their buying process seamless by including all relevant details, including spec sheets, load capabilities (usually denoted in kips), how many linear feet are available, how many times the towers have been used, dimensions, and the manufacturer.

4. Set Shoring Towers at a Fair Price

If your shoring towers aren’t selling, it could be because you’re failing to match the market’s going rate. Research the price of similar shoring towers sold in your area to ensure your prices are competitive. If your towers are old, heavily used or have wear and tear, this should be reflecting in the price as well.

5. Be Upfront About Wear and Tear

Since you’re selling your shoring towers used, buyers expect there to be wear and tear; never attempt to trick buyers into thinking your shoring towers are “like new” if they aren’t. It’s always better to be upfront about any defects and to price your shoring towers accordingly.

Buy and Sell with Eiffel Trading

Eiffel Trading’s online marketplace allows heavy civil contractors to buy and sell new, used, and surplus assets, including used shoring towers, used trench boxes, used slide rail systems, and much more. In addition to our equipment options, our used material inventory ranges from used hdpe pipe, to used precast concrete traffic barrier, to used steel sheet pile, and so much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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How is Steel Pipe Made?

Steel pipe is manufactured using a few different processes. These processes differ based primarily on the type of steel pipe and its intended uses. Below you’ll find some information about the initial stages of pipe production as well as the individual manufacturing processes for specific kinds of steel pipe.

Initial Stages

For many types of steel pipes, the manufacturing process begins by melting iron ore and coke (a hard, porous, gray fuel that has a high carbon content). After the melting stage, the ore and coke are blasted using oxygen. This removes carbon. The product of the aforementioned processes is poured into molds, creating raw steel ingots. These ingots are rolled into blooms that become either the slabs used to create welded pipes or the billets used to create seamless pipes.As mentioned, the production method of steel pipes differs based on their type. Below you’ll find information about the unique manufacturing methods of popular types.

Seamless Steel Pipes

During the manufacturing process for seamless steel pipes, a billet is heated and then molded into the shape of a cylinder. The cylinder, also called a round, is heated further in a furnace and then rolled. During the heating and rolling, a hole forms in the center of the cylinder, and a bullet-shaped piercer is pushed through the center. After this, the steel is rolled and stretched into the desired dimensions and lengths over the bullet-shaped piercer.A large diameter seamless steel pipe goes through a mandrel mill process. After the piercer is pushed through, the shell of the pipe is rolled through a mandrel mill. This mandrel mill has mandrel bars inside of it. The end result of the mandrel mill process is a pipe with more controlled wall thickness and outside diameter.

Welded Steel Pipes

Steel slabs are heated and hot rolled into skelp, coiled and elongated steel ribbon, to create a welded steel pipe. Then, skelp is cut into a flat sheet of a pre-determined length. A rolling machine processes the flat sheet, forming it into a cylinder shape. This is the basic process for basic welded steel pipes. The manufacturing process for welded steel pipes differs slightly based on the type of welded steel pipe. There are three common types of welded steel pipe with different manufacturing processes: Electric-Resistance Welded Pipe, Longitudinal Welded Pipe, and Spiral Welded Pipe.

Electric-Resistance Welded Pipes (ERW)

This type of welded pipe is manufactured using a process of cold-forming a steel sheet into a cylinder shape. Electrical current is passed through the edges of the sheet so that it reaches the necessary temperature for its edges to join and bond. The seam on ERW pipe is almost undetectable, and this type of pipe is quite strong.

Longitudinal Welded Pipe (LSAW)

This type of welded pipe is created by cold-forming a heavy carbon steel plate. The LSAW pipe manufacturing process results in a straight seam that spans the entire length of a pipe on the outside.

Spiral Welded Pipe

This type of pipe is the result of winding a steel plate or HR coil into the shape of a spiral. Spiral welded pipe is easy and affordable to produce and results in a sizeable amount of pipe thickness.All types of steel pipe are subject to quality control inspections after their production. They may also be modified according to a customer’s requirements for a particular project.

Buy and Sell with Eiffel Trading

Eiffel Trading is a one-stop-shop for you structural steel needs; our inventory ranges from used steel pipe pile (including both seamless and spiral weld!), to used steel plates, to brand new h-pile beams, and everything in between! Furthermore, our equipment offerings range from used sectional barges, to used concrete formwork, to used sectional barges, and everything in between.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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How Are Steel Road Plates Manufactured?

Steel road plates are large, flat plates that provide a temporary surface for traffic to pass over while construction is underway. Steel road plates are commonly used to cover potholes, excavations, trenches, damaged pedestrian walkways, and roads under construction.

How Steel Road Plates Are Manufactured

Steel plates are made from high carbon steel, stainless steel, and other steel compositions, and they are manufactured in steel mills. The most common method used to make steel plates is by hot rolling. To do this, a steel slab is heated to 1,700 degrees Fahrenheit and passed through a series of rollers. Each set of rollers makes the slab thinner until the desired thickness is achieved. Once the steel is the correct thickness, the plate is cooled to room temperature and cut to size or rolled into large coils.Hot rolled steel is the cheapest type of steel available. However, cold rolled steel is another option. Cold rolled steel is created when a steel sheet that has previously been hot rolled is run through a second series of rollers without the addition of heat to create an even thinner sheet of steel. This added step accounts for the disparity in price between the two types of plates.Steel road plates can be manufactured in a vast array of thicknesses and sizes to accommodate the needs of most roadway and construction projects. For large excavations, multiple steel plates can be welded together to create the dimensions needed. Plates can also be purchased in standard sizes, which are 1-inch to 2-inches thick and include dimensions such as 4×4, 4×6, 4×8, 4×10, 4×12, 4×16, 5×8, 5×10, 5×12, 5×16, 6×8, 6×10, 6×12, 6×16, 8×10, 8×12, 8×16, 8×20.Though steel plates are often 1-inch to 2-inches in thickness, their desired thickness will depend on their applicaiton type. For steel road plates, road travel speeds above 45 miles per hour will require thicker plates, such as a 1.50-inch plate thickness.

Custom Options for Steel Road Plates

Steel plates are made of steel that is commonly at least one inch thick. They sometimes feature hardened threaded weld nuts and engineered lifting devices (such as lifting rings) for easy installation. Many plates come with a skid-resistant texture that’s applied to the surface to prevent vehicles from sliding on the steel, especially in wet conditions. Some manufacturers offer picking holes or welded-in lifting tools, depending on the need.

Buy and Sell with Eiffel Trading

Eiffel Trading is an online marketplace that allows heavy civil contractors to both buy and sell materials and equipment. Structural steel is our bread-and-butter, and our inventory includes both brand new steel plates and used steel plates, used steel sheet pile, used pipe pile, brand new h-pile beams, and so much more. Additionally, our equipment offerings include used sectional barges, used pile drivers, used concrete formwork, and everything in between.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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What are the Benefits of Using a Trench Box?

A trench box is a system installed within an excavation to protect workers while they’re below ground level. Trench boxes come with many benefits: they give a trench stability, improve project efficiency, extend the life of a trench, and allow laborers to work in peace knowing that even if the trench collapses, they will not be trapped under the weight of the soil.

Trench Boxes Provide Worker Protection

Excavation work can be hazardous to laborers, and cave-ins have been known to take place even after safety precautions are taken. The main purpose of a trench box is to increase protection and minimize the risk of injury to workers while they’re on the job. Trench boxes can be used alongside other protective systems for added safety, such as sloping and benching. As trenches get deeper, trench boxes can also be stacked on top of one another to provide the additional protection for workers.

Trench Boxes Improve Stability

Trench boxes are usually made of steel or aluminum. They’re comprised of two plates called shields which are held apart by spreaders. The plates run along the trench’s walls, while the spreaders are braced perpendicular to the plates. Together, these components stabilize both the trench box and the excavation site; without a trench box, the excavation would be more likely to cave in.

Trench Boxes Improve Project Efficiency

Without the use of a trench box, cave-ins and worker injury would be commonplace. As expected, each project setback translates into a decrease in productivity as workers must re-excavate collapsed sites, repair tools and equipment, reconnect piping or wiring that was damaged during the cave-in, and handle worker injuries. By utilizing trench boxes, common excavation setbacks can be avoided, thereby increasing productivity. Additionally, trench boxes are designed so that workers can easily move in and out of a trench. This ease of movement also results in improved efficiency.

Trench Boxes Extend the Lifespan of the Trench

As mentioned above, trench boxes improve the stability of an excavation site by bracing the site’s walls and preventing partial or full collapses. Due to this increase in stability and cave-in prevention, trench boxes help extend the life of a trench. This is especially valuable for long term projects when a trench might be required for weeks or months at a time.

Trench Boxes Can Be Resold

Trench boxes are an important safety tool for any excavation site where workers are operating below ground level. Though they are an expense, trench boxes are made of steel or aluminum, which are durable materials that are designed to do well under pressure. Because of this, trench boxes hold their value and can be resold after use.

Buy and Sell with Eiffel Trading

Eiffel Trading is the leading online marketplace for used trenching and shoring equipment, including used trench boxes, used shoring towers, used slide rail systems, and more. Additionally, we offer other equipment types including used sectional barges, used pile drivers, used concrete formwork, and more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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Eiffel 101: 3 Types of Welded Steel Pipes

Welded steel pipes are widely used due to their affordable price and the large selection of them on the market. In comparison to their alternative, seamless steel pipes, they are an attractive choice for cost-efficient projects in particular. Since there are so many welded pipes on the market, finding the right configuration of welded pipe for a particular job is quite easy. And there is an array of used and surplus welded steel pipe available for buyers who want to get the best deal. This is a major plus considering how high steel prices can be. When exploring steel pipe options, buyers should be aware of the different types of welded pipes to help find the right product for their needs.

Types of Welded Steel Pipes

Most kinds of welded steel pipes start out as flat steel plates. Some start out as an HR coil. Regardless, the process involves shaping a steel substrate into a desired shape and size, either in a spiral welded or straight seam configuration. There are three major types of welded steel pipes that differ slightly on how they are produced and the end result of their production. Below are the three main types of welded steel pipes:

Electric-Resistance Welded Pipe (ERW) –

ERW pipe is produced through a process of cold-forming a sheet of steel into the shape of a cylinder. Electrical current is passed through the sheet’s edges to heat it to the degree required to join and bond those edges. ERW pipe does not require the use of welding filler material. It can either be produced using high or low frequency. ERW pipe is strong, and its seams are often barely detectable.

Longitudinal Welded Pipe (LSAW or DSAW) –

LSAW pipe is produced by cold-forming a heavy carbon steel plate. This method of production results in a straight seam that extends across the entire length of the pipe externally. DSAW pipe follows a similar process but is double-submerged and results in a seam that extends across both the external length of the pipe and the internal length of the pipe. LSAW and DSAW pipes are generally sized between 12m and 20m. The quality and strength of this welding technique is quite impressive, and both LSAW and DSAW pipes are appropriate for applications that require high-pressure resistance.

Spiral Welded Pipe –

This pipe is welded by winding either a steel plate or HR coil into a spiral shape. Spiral welded pipe may also be referred to as helical submerged arc welded (HSAW) pipe. Spiral welded pipe can reach particularly long lengths and result in a notable degree of thickness. Production of spiral welded pipe is usually fairly quick, efficient, and affordable.The right type of welded steel pipe for your project will depend on factors such as the application, size required, thickness required, and resistance capabilities needed. All the types of welded steel pipes listed above can be excellent choices for a variety of projects. And there is a large selection of all three types available on the market to be purchased either new or used.

Buy and Sell with Eiffel Trading

Eiffel Trading is the place to purchase new, used, and surplus structural steel! Our steel inventory ranges from used steel pipe pile, to brand new h-pile beams, to used steel sheet pile, and everything in between. Furthermore, our equipment offerings include used concrete formwork, used shoring systems, used push boats, and much more.All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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Eiffel 101: Guide to Pipe Grades

There are several organizations that grade steel pipes to help purchasers determine their suitability for projects. The American Society of Testing and Methods (ASTM), American Society of Mechanical Engineers (ASME), American Petroleum Institute (API), American Iron and Steel Institute (AISI), and the Society of Automotive Engineers (SAE) are all highly trusted organizations with unique grading standards. Keeping track of how these organizations grade steel pipes can be challenging. Below is some information to help buyers understand some simple and key components of how grading works at each of these institutes.

ASTM

The grading designation system for ASTM includes the letter “A,” which indicates ferrous materials and then a number that is assigned sequentially based on the type of product. A grade may also include abbreviated information regarding the specific type of steel, the product’s year of adoption, and the product’s year of most recent re-approval. If the letter “M” is included in a steel pipe’s grade, it is an indication that metric standards of measurement apply. A simple example of an ASTM grading specification is A106 C. “A” stands for “ferrous materials.” 106 is the sequential assignment for seamless carbon steel pipe. And “C” indicates specific qualities of the chemical composition of the steel.

ASME

The grading designation system for ASME is quite similar to ASTM. The major difference between the two is that each specification starts with “SA” to indicate ferrous materials, rather than “A.” If something has an A106 C specification from ASME, it will have an SA106 C specification from ASME. Note that pipe sizes are listed by both ASME and ASTM according to both wall thickness and outside diameter. The only significant difference between ASTM and ASME standards is that ASME requires steel pipe that is graded for high pressure applications receive additional testing to be approved for such use.

API

API oversees classifying steel pipe specifically for the oil and gas industry. The most common, general API classification for line pipe that is suitable for uses in the oil and gas sector is API 5L. Based on specific mechanical and chemical properties, API pipe receives either a PSL1 or PSL2 designation. It also receives a specific grade designation based on the type of pipe and its ideal applications. Examples of possible grades include: X52, X60, and X70. Each of these grades has a different yield strength, tensile strength, and elongation percentage. Taking all the API possible specifications into account, a pipe might receive the following API designation, for example: API 5L PSL1 X52.

AISI and SAE

AISI and SAE use the exact same system of numbers to grade types of steel. The first digit in their system indicates the basic type of steel. The second digit indicates factors regarding chemical composition such as added alloys. The two final digits signal the percentage of carbon content in the steel. For example, 1020 is a possible AISI/SAE grade. Keep in mind that AISI and SAE’s grades do not provide information that is as specific as ASTM, ASME, and API’s information regarding capabilities, applications, and testing results.Procuring the right steel pipe for a project is essential, and knowing how the specific grading systems of major organizations work can help you ensure that you purchase the correct product. Our guide should help you understand the basics and give you a head start in finding the proper pipe for the job.

Buy and Sell with Eiffel Trading

Eiffel Trading is the leading online marketplace for used and new structural steel! Our steel inventory includes the following:All of our listings are constantly being updated, but if you don’t see what you’re looking for, create a wanted listing.Ready to sell your used heavy equipment or construction material? List your products today on Eiffel Trading’s online marketplace.If you have any questions or would like additional information, please call us at 1-800-541-7998 or email sales@eiffeltrading.com.
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