| Standard | ASTM |
|---|---|
| Grade | Q355B/Q235B |
| Type | Light |
| Application | Steel Workshop |
| Tolerance | ±1% |
| Standard | GB |
|---|---|
| Grade | Q235B Q355B |
| Type | Light |
| Application | Steel Workshop |
| Tolerance | ±3% |
| Standard | GB |
|---|---|
| Grade | Q235B Q355B |
| Type | Heavy |
| Application | Steel Workshop |
| Tolerance | ±1% |
| Standard | GB |
|---|---|
| Grade | Q235/Q345B |
| Type | Heavy |
| Application | Steel Structural Fabrication Construction |
| Tolerance | ±3%, ±3% |
| Standard | GB |
|---|---|
| Grade | Q235B Q355B |
| Type | Heavy |
| Application | Steel Workshop |
| Tolerance | ±1% |
| Standard | GB |
|---|---|
| Grade | Q235B Q355B |
| Type | Heavy |
| Application | Steel Workshop |
| Tolerance | ±5% |
| Standard | AiSi/ASTM |
|---|---|
| Grade | Q235B Q355B |
| Type | Heavy, Light Steel Structure Frame |
| Application | Steel Walkway And Floor Structural Roofing, Steel Workshop |
| Tolerance | ±1%, ±1% |
| Standard | AiSi |
|---|---|
| Grade | Q235 Q345 |
| Type | Light |
| Application | Steel Workshop |
| Tolerance | ±1% |
| Standard | AiSi, ASTM, JIS |
|---|---|
| Grade | Q235 Q355b |
| Type | Light |
| Application | Steel Warehouse |
| Tolerance | ±1% |
| Standard | GB |
|---|---|
| Grade | Q235/Q345B |
| Type | Light, Light |
| Application | Steel Structure Warehouse |
| Tolerance | ±1% |