1. Commodity: Cold drawn seamless square steel tube / hollow section
2. Steel grade:
| GB/T 3094-2012: | 20#,45#,16Mn |
| EN 10305-1: | E235,E355,C45E,E410,E470,S355JR,S355J0H,S355J2H |
| DIN 2391-2: | ST45,ST52 |
| JIS: | STKM 13A, STKM 13B, STKM 13C |
| ASTM A519: | 1020,1045,1518,1524,1541 |
3. Size range: 60mm*60mm-250mm*250mm
4. Manufacture method: Hydraulic cold drawn
5. Delivery Condition: Cold drawn,Stress relieved.