1. Square Pipe Material: ASTM A500 Gr.B, Gr.C, Q195, Q215, Q235, Q345, S235JR, S275JR, S355JR, SKTR400, 490 etc.
2. Production Technique: ERW Welded
3. Square Pipe Specification:
Outer Diameter: 20x20mm~500x500mm
Wall Thickness: 1.0mm~18mm
Length: 6m or cut as request
Square and Rectangular Pipe/Tube Show:

Addition:
A: Anti-corrosion and high-temperature resistant with hot dipped galvanizied coating or painting.
B: All the production process are made under the ISO9001: 2000 strictly
C: With BV certificate, PC certificate, ISO9001-2000, SGS inspection.
4. Square Pipe Standards:Â
BS6363, JIS3466, DIN2395, ASTM A500, GB/T3094-2008, GB/T6728-2002, DIN17119, GOST8645, etc.
5. Square Pipe's Packing Way:
a. Galvanized: Packed by steel strips
b. Black steel hollow: Packed by steel strips and tarpaulin
c. Woven cloth with 7 slats
d. According to the requirements of customers

6. Usage of Square Pipe/Tube:
Mechanical & manufacture, Steel structure, Ship building, Bridging, Automobile chassis, construction, etc.

7. Main market:
Middle East, South American, Africa, Asia and some European country and America, Australia, etc.
8. Zinc coating(if) : Pre-galvanized: 50-150G/M2; Hot dipped galvanized: 200-480G/M2
9. Productivity:Â 80, 000 Metric Tons per Month

10. Remark:
a. Payment terms: T/T, L/C at sight;
b. Terms of trade: FOB, CFR, CIF, CIP, EXW, etc.
c. Minimum order: 1 tons
d. Lead time: 7-30 days.
Specification of ASTM A500 Q195 Q235 Q345 S275 B Grade ERW Structural Mild Steel Square Pipes | ||||||
Square steel pipe | Size | WT(mm) |
 |
 Rectangular steel pipe |  Size | WT(mm) |
 20*20 |  1.0-2.5 |  20*30 |  1.0-2.75 | |||
 25*25 |  1.0-2.75 |  20*40 |  1.0-2.75 | |||
 30*30 |  1.0-2.75 |  25*40 |  1.0-2.75 | |||
 40*40 |  1.2-3.75 |  30*50 |  1.0-4.75 | |||
 50*50 |  1.2-5.75 |  30*60 |  1.2-4.75 | |||
 60*60 |  1.2-5.75 |  40*50 |  1.2-4.75 | |||
 70*70 |  1.2-5.75 |  40*80 |  1.2-4.75 | |||
 80*80 |  1.2-5.75 |  50*70 |  1.3-4.75 | |||
 90*90 |  1.2-5.75 |  50*80 |  1.3-4.75 | |||
 100*100 |  1.5-12 |  60*90 |  1.3-4.75 | |||
 120*120 |  2.5-12 |  50*100 |  1.3-5.75 | |||
 140*140 |  2.75-16 |  50*150 |  1.3-5.75 | |||
 150*150 |  2.75-16 |  60*160 |  1.3-5.75 | |||
 160*160 |  3.0-16 |  100*150 |  2.5-16 | |||
 180*180 |  3.0-16 |  100*200 |  2.5-16 | |||
 200*200 |  3.0-16 |  100*250 |  2.5-16 | |||
 250*250 |  4.75-16 |  150*300 |  4.5-16 | |||
 300*300 |  4.75-16 |  200*300 |  5.5-16 | |||
 400*400 |  4.75-25 |  200*400 |  5.5-16 | |||
 500*500 |  4.75-25 |  400*600 |  5.5-25 |
1. Square Pipe Material: ASTM A500 Gr.B, Gr.C, Q195, Q215, Q235, Q345, S235JR, S275JR, S355JR, SKTR400, 490 etc.
2. Production Technique: ERW Welded
3. Square Pipe Specification:
Outer Diameter: 20x20mm~500x500mm
Wall Thickness: 1.0mm~18mm
Length: 6m or cut as request
Square and Rectangular Pipe/Tube Show:

Addition:
A: Anti-corrosion and high-temperature resistant with hot dipped galvanizied coating or painting.
B: All the production process are made under the ISO9001: 2000 strictly
C: With BV certificate, PC certificate, ISO9001-2000, SGS inspection.
4. Square Pipe Standards:Â
BS6363, JIS3466, DIN2395, ASTM A500, GB/T3094-2008, GB/T6728-2002, DIN17119, GOST8645, etc.
5. Square Pipe's Packing Way:
a. Galvanized: Packed by steel strips
b. Black steel hollow: Packed by steel strips and tarpaulin
c. Woven cloth with 7 slats
d. According to the requirements of customers

6. Usage of Square Pipe/Tube:
Mechanical & manufacture, Steel structure, Ship building, Bridging, Automobile chassis, construction, etc.

7. Main market:
Middle East, South American, Africa, Asia and some European country and America, Australia, etc.
8. Zinc coating(if) : Pre-galvanized: 50-150G/M2; Hot dipped galvanized: 200-480G/M2
9. Productivity:Â 80, 000 Metric Tons per Month

10. Remark:
a. Payment terms: T/T, L/C at sight;
b. Terms of trade: FOB, CFR, CIF, CIP, EXW, etc.
c. Minimum order: 1 tons
d. Lead time: 7-30 days.
Specification of ASTM A500 Q195 Q235 Q345 S275 B Grade ERW Structural Mild Steel Square Pipes | ||||||
Square steel pipe | Size | WT(mm) |
 |
 Rectangular steel pipe |  Size | WT(mm) |
 20*20 |  1.0-2.5 |  20*30 |  1.0-2.75 | |||
 25*25 |  1.0-2.75 |  20*40 |  1.0-2.75 | |||
 30*30 |  1.0-2.75 |  25*40 |  1.0-2.75 | |||
 40*40 |  1.2-3.75 |  30*50 |  1.0-4.75 | |||
 50*50 |  1.2-5.75 |  30*60 |  1.2-4.75 | |||
 60*60 |  1.2-5.75 |  40*50 |  1.2-4.75 | |||
 70*70 |  1.2-5.75 |  40*80 |  1.2-4.75 | |||
 80*80 |  1.2-5.75 |  50*70 |  1.3-4.75 | |||
 90*90 |  1.2-5.75 |  50*80 |  1.3-4.75 | |||
 100*100 |  1.5-12 |  60*90 |  1.3-4.75 | |||
 120*120 |  2.5-12 |  50*100 |  1.3-5.75 | |||
 140*140 |  2.75-16 |  50*150 |  1.3-5.75 | |||
 150*150 |  2.75-16 |  60*160 |  1.3-5.75 | |||
 160*160 |  3.0-16 |  100*150 |  2.5-16 | |||
 180*180 |  3.0-16 |  100*200 |  2.5-16 | |||
 200*200 |  3.0-16 |  100*250 |  2.5-16 | |||
 250*250 |  4.75-16 |  150*300 |  4.5-16 | |||
 300*300 |  4.75-16 |  200*300 |  5.5-16 | |||
 400*400 |  4.75-25 |  200*400 |  5.5-16 | |||
 500*500 |  4.75-25 |  400*600 |  5.5-25 |
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