China Tianjin Manufacture Galvanized Square Hollow Section Steel Tubes 75X75 Thin Wall Steel Square Hollow Pipe, Find details about China Galvanized Square Pipe Q235B, 75X75 Thin Wall Steel Square Hollow Pipe from Tianjin Manufacture Galvanized Square Hollow Section Steel Tubes 75X75 Thin Wall Steel Square Hollow Pipe
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 |