A500 B square tubes are available in sizes from 10mm x 10mm to 800mm x 800mm, with wall thicknesses from 1mm-40mm, and custom lengths are available.
ASTM A500 Gr. B Structural square tube, available in seamless and welded versions, with tensile and yield strengths ranging from 400 to 290. AST A500 Gr. B structural square steel pipe is widely used in structural and civil engineering and construction industries.
What is A500 GR B equivalent to?
What is ASTM A500 GR B pipe material?
ASTM A500 is a standard specification for cold-formed welded and seamless carbon steel structural tubing in round, square tube and rectangular tube shapes. Applications: frames, roll cages, truck racks, trailers, railings, etc.
| Specification | Value / Description |
|---|---|
| Standard | ASTM A500 |
| Grade | Grade B |
| Shape | Square |
| Material | Carbon Steel |
| Manufacturing Process | Cold-Formed, Welded & Seamless |
| Carbon Content | Intermediate |
| Strength | High Strength for Structural Applications |
| Yield Strength | Minimum 345 MPa (50 ksi) |
| Tensile Strength | Minimum 485 MPa (70 ksi) |
| Elongation | Minimum 20% |
| Lengths | Customizable, typically 6 meters (20 feet) |
| Finishes | Bare, Oiled, or Painted (depending on manufacturer) |
| Applications | Construction, Bridges, Towers, Supports, and Other Structural Applications |
Cold Formed A500 Hollow Section pipe

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