There are major differences between ASTM A500 and A36. The differences between the two are as follows:
ASTM A500 is the standard of the American Society for Testing and Materials; ASTM A36 is the American standard for carbon structural panels.
ASTM A500 is the standard for welded steel pipes (referring to the standard specification for cold-formed welding of round steel and section steel and seamless carbon steel structural pipes); ASTM A36 is applicable to riveted, bolted and welded structures for bridges and buildings, as well as general-purpose structures. Steel quality carbon steel sections, plates and bars.
The tensile strength of ASTM A500 is 400MPa and the yield strength is 290MPa; the yield strength of ASTM A36 is ≥250MPa and the tensile strength is 400~550MPa.
| Property | ASTM A500 | ASTM A36 |
|---|---|---|
| Standard | American Society for Testing and Materials (ASTM) | American Society for Testing and Materials (ASTM) |
| Type | Welded and seamless carbon steel structural tubing | Carbon structural steel |
| Application | Cold-formed welded and seamless carbon steel structural tubing for general structural purposes | Structural steel shapes, plates, and bars for riveted, bolted, or welded construction, and for general structural purposes |
| Material | Carbon steel | Carbon steel |
| Strength Properties | Tensile Strength: 400 MPa | Yield Strength: ≥250 MPa |
| Yield Strength: 290 MPa | Tensile Strength: 400-550 MPa | |
| Usage | Bridge components, building construction, mechanical parts, etc. | Bridges, buildings, and other structures where bolted, riveted, or welded connections are used |
| Formability | Good formability and weldability | Good formability, weldability, and machinability |
| Corrosion Resistance | Moderate corrosion resistance | Moderate corrosion resistance |


