Common standards for Square, rectangular and special-shaped steel pipes | Common Grades | Main Application |
ASTM A500 | Gr.A, Gr.B, Gr.C | Cold-formed welded and seamless carbon steel structural tubing.(Building structures, bridges, mechanical frames, vehicle components, etc.) |
ASTM A513-18
| 1010, 1020, 4130 | Electric-resistance-welded carbon and alloy steel mechanical tubing.(Automotive drive shafts,gas springs,frames,Hydraulic cylinder barrels,etc.) |
EN 10219-1 | S235JRH, S355J2H, S460NH | Cold-formed welded structural hollow sections.(Industrial building frames,Offshore wind turbine towers, Highway crash barriers,Stadium trusses,Mobile crane booms,etc. ) |
EN 10210-1
| S275J2H, S460NH, S355NLH | Hot-finished structural hollow sections.( industrial building columns,bridge structures,Offshore oil platform jackets,Nuclear containment vessel supports,High-speed railway bridge piers,etc.) |
GB/T 6728-2017
| Q235, Q355, Q390 | Cold-formed hollow sections for structural use.(Building structures, mechanical manufacturing, bridge engineering, vehicle frames, etc.) |
GB/T 3094-2012
| 10#,20#,45#,Q345,304,316 | Cold-drawn special-shaped tubes .(Automotive drive shafts,Elevator guide rails,Medical device frames,Architectural decoration components, etc.) |
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