What is A36 pipe material
A36 welded pipe is a carbon structural steel pipe that complies with American standards and is widely used in industries such as construction, bridges, vehicles, ships, and pressure vessels.
What is the chemical composition of A36 welded pipe?
| Composition | Content | Function |
|---|---|---|
|
C |
≤0.25% |
Balancing strength and ductility to ensure weldability |
| Mn | 0.80%~1.20% |
Enhance resilience and improve thermal processing performance |
| Si | ≤0.40% |
Deoxidizer, optimized corrosion resistance |
| P | ≤0.040% |
Strictly control impurities and prevent cold brittleness. |
| S | ≤0.050% |
Inhibit thermal brittleness and reduce weld cracks |
| Cu | ≥0.20% |
Enhanced atmospheric corrosion resistance |
What are the mechanical properties of A36 welded pipes?
|
Parameters |
Requirement Value |
|---|---|
|
Yield strength |
≥250 MPa(≈36 ksi) |
| Tensile strength | 400~550 MPa |
| Elongation | ≥20%(Gauge 200 mm) |
What is A36 material equivalent to?
| Standard | Grade | Defference |
|---|---|---|
| GB | Q235B |
A36 has higher yield strength, and Q235B has stricter phosphorus and sulfur control. |
| JIS | SS400 |
Similar composition, SS400 has no minimum manganese content. |
| EN | S235JR |
S235JR has stricter impact toughness requirements. |
| API | API 5L Gr.B |
Focusing on pipeline transportation applications |
