Gold Member Since 2011
Audited Supplier
Tianjin Xuboyuan Iron & Steel Trading Co., Ltd.

Square Pipe, Square Pipes, Stainless Steel Square Pipe manufacturer / supplier in China, offering Rectangular Carbon Steel Pipe, Gi Pipe Manufacturer All Size/Specification, Square Steel Pipe Big Discount! --High Quality and so on.

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Rectangular Carbon Steel Pipe

Purchase Qty.:
(Tons)
2-19 20+
FOB Unit Price: US $900 US $560
Purchase Qty. (Tons) FOB Unit Price
2-19 US $900
20+ US $560
Get Latest Price
Production Capacity: 500, 000mt/Year
Transport Package: in Bundle
Payment Terms: L/C, T/T, Western Union
Basic Info
  • Model NO.: AISI, DIN, GB, JIS
  • Technique: Hot Rolled
  • Section Shape: Square
  • Length: 2-12m
  • Specification: CE & ISO9001: 2000
  • Type: Welded
  • Usage: Pipeline Transport
  • Thickness: 0.5-14mm
  • Trademark: SIG
  • Origin: Tianjin, China
Product Description
Now we are in the position to supply the tube as follows:

1. ERW Galv. Welded steel tube according to BS1387 or ASTM A53
2. Hot-dipped Galv. Scaffolding tube according to BS1139
3. Carbon seamless steel tube according to ASTM A53/A106/API 5L Gr. B
4. Seamless welded steel tube
5. Welded furniture tube with black surface or white surface condition

Pipe Type Specification/mm Thickness/mm Specification/mm Thickness/mm
10*20 0.5-2.0
10*30 0.5-2.0
Rectangular Pipe 20*30 0.5-3.0 100*50 1.0-5.0
40*20 0.5-3.0 100*60 1.5-5.0
50*20 0.6-2.0 50*25 0.6-2.0
75*25 0.7-2.0 70*20 0.7-2.0
40*30 1.2-3.0 100*80 1.5-5.0
50*25 1.5-3.0 120*50 2.0-5.0
50*30 0.7-4.0 120*60 2.0-5.0
60*30 0.7-4.0 120*80 2.0-5.0
70*30 0.7-2.5
60*40 0.7-4.0 160*80 2.75-5.0
70*50 1.5-4.0 100*150 2.75-5.0
80*40 0.9-4.0 100*200 2.75-5.0
80*60 1.7-5.0 200*300 2.75-14
90*50 1.7-5.0 200*400 2.75-14
90*60 1.5-5.0 300*400 2.75-14
100*40 1.5-5.0 300*500 2.75-14
15*15 0.5-2.0 19*19 0.5-2.0
Square Pipe 20*20 0.5-2.0 100*100 2.0-5.0
24*24 0.5-2.0
25*25 1.2-3.0 110*110 2.0-5.0
30*30 1.2-3.0 120*120 2.0-5.0
40*40 0.6-4.0 130*130 2.0-5.0
50*50 0.7-4.0 140*140 2.0-5.0
60*60 1.0-4.0 150*150 2.75-5.0
70*70 1.7-5.0 200*200 2.75-14
75*75 1.7-5.0 250*250 2.75-14
80*80 1.7-5.0 300*300 2.75-14
90*90 2.0-5.0 400*400 2.75-14
Round Pipe 17-273(3/8"-10") 0.8-12"


Contact person Linda
Mobile 0086-18322363126
Assessment Criteria First Grade Second Grade
Wall thickness/t4mm≤t≤10mm ±8%t4mm≤t≤10mm ±8%t
10mm≤t≤22mm ±6%t10mm≤t≤22mm ±6%t
Suitable for flat partsSuitable for flat parts
Right Angle90°±1.0°90°±1.5°
Corner radius of circular arct≤6mm(1.5-2.5)t
6mm≤t≤10mm(2-3)t
T>10mm(2.5-3.5)t
Concave and convex degree≤5% side length≤6% side length
Bending degree≤1.5mm/m, total bending degree
≤0.15% specified length
≤2mm/m, total bending degree
≤0.2% specified length
Distortion degree2mm+0.5mm/m-
Scale accuracy Ordinary precision 0- +50mmOrdinary precision 0- +70mm
Fine scale 0- +5mmFine scale 0- +15mm
Cutting quality100mm≤side length≤300mm100mm≤side length≤300mm
Cutting slope≤3mmCutting slope≤4mm
300mm<side length≤500mm300mm<side length≤550mm
Cutting slope≤3mmCutting slope≤6mm
End without cutting burrEnd with few cutting burr

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