Steel Mechanical Tube

Steel Mechanical Tube is available in Welded Round (HREW) and Electric Resistance Welded (ERW) formats, offering a range of strength, dimensional accuracy, and cost-efficiency for demanding structural and mechanical applications. These tubes are commonly used in automotive frames, machinery, and industrial fabrications requiring strength and uniformity.
Steel Mechanical Tubing is a durable, high-performance material used across construction, manufacturing, and engineering industries. Its consistent wall thickness, strength, and machinability make it ideal for precision applications such as supports, frames, and rotating parts where reliability and versatility are key.
Specifications
Available Stock Sizes
4ft, 6ft, 8ft, 10ft, 20ft, or Cut to Size
PageTitle
Steel Mechanical Tube, ERW and HREW Round Tubing, Structural and Precision Fabrication
Workability
Easy to weld, cut, form, and machine
Additional Notes
HREW is an economical alternative to DOM tubing when precision tolerances are not a primary concern.
ERW tubing is ideal for cold-formed welded and seamless structural tubing.
For higher strength, tighter tolerances, and more precise concentricity, consider DOM Round Steel Tube.
ERW tubing is ideal for cold-formed welded and seamless structural tubing.
For higher strength, tighter tolerances, and more precise concentricity, consider DOM Round Steel Tube.
Specifications
ASTM A513, 1010 Structural Grade (HREW)
ASTM A500 Grade B, A513, A135 (ERW)
Measured by Outside Dimension (A) x Wall Thickness (B)
ASTM A500 Grade B, A513, A135 (ERW)
Measured by Outside Dimension (A) x Wall Thickness (B)
Applications
Structural frameworks, support columns
Gates, fencing, handrails, and protective barriers
Roll cages, bollards, door posts
Railings, exhaust systems, hinges, general tubing uses
Gates, fencing, handrails, and protective barriers
Roll cages, bollards, door posts
Railings, exhaust systems, hinges, general tubing uses
Material Properties
Strong and durable, suitable for structural applications
Raised weld seam present inside the tube (for HREW)
Semi-smooth, dark grey finish (for ERW)
High Strength: Tensile Strength up to 132,000 psi
Raised weld seam present inside the tube (for HREW)
Semi-smooth, dark grey finish (for ERW)
High Strength: Tensile Strength up to 132,000 psi
Mechanical Properties
Ultimate Tensile Strength: 132,000 psi (602 MPa)
Yield Strength: 74,185 psi (512 MPa)
Brinell Hardness: 90
Rockwell Hardness: B75
Yield Strength: 74,185 psi (512 MPa)
Brinell Hardness: 90
Rockwell Hardness: B75
Chemical Composition
Carbon (C): 0.17 - 0.23%
Iron (Fe): 99.08 - 99.53%
Manganese (Mn): 0.3 - 0.6%
Phosphorus (P): 0.04% max
Sulfur (S): 0.05% max
Iron (Fe): 99.08 - 99.53%
Manganese (Mn): 0.3 - 0.6%
Phosphorus (P): 0.04% max
Sulfur (S): 0.05% max
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