China Mild Steel Square Hollow Tube Pipes High Strength Rectangular Tube (Q345 Q510 Q610 Q700) Used in The Automotive Machinery Industry, Find details about China Galvanized Steel Square, Gi Tubes Hollow Section from Mild Steel Square Hollow Tube Pipes High Strength Rectangular Tube (Q345 Q510 Q610 Q700) Used in The Automotive Machinery Industry
Item | hot gi pipe hollow section |
Wall thickness | 1.5mm-22mm |
DN | SHS: 15*15-400*400mm, RHS: 20*25-400*300mm |
Length | 2m-12m or as per customers' requirement |
material | Q195,Q215,Q235345,2,Q0#,16Mn,ect |
Zin coating | 210g/m2-240g/m2 or Customization |
Surface | hot dipped galvanized |
Marking | As per customer's requirement |
Packing | In bundle or according to customers' requirement |
Application | coal gas transportation,heating steam ,oil and nature gas pressure steel pipe, steel structure. |
ODM/OEM | available |
Grade | C | Mn | Si | S | P | UTS(MPa) | YS(MPa) | EI(%) |
Q235B | 0.12-0.20 | 0.30-0.70 | 0.30 | 0.045 | 0.045 | 375-500 | 235 | 26 |
Q345B | 0.12-0.20 | 1.20-1.60 | 0.20-0.55 | ≤0.045 | ≤0.045 | 510-600 | 345 | 22 |
20#(GB) | 0.17-0.23 | 0.38-0.65 | 0.17-0.37 | ≤0.030 | ≤0.030 | 410-550 | ≥245 | ≥20 |