Galvanized Seamless Steel Tube(Round,Square,Rectangle)
Standard: GB/T 3091-2008, EN10296/10297,ASTM A500,etc.
Steel material: Q235, Q195, 20#, 45#, SS400, Gr.B.
Outer diameter: 20mm~406mm
Wall thickness: 1mm~10mm
Length: 6meters, 7meters, 9meteters, 12meters, or by random.
Type: seamless, welded
Thickness of Zinc coating: 200g~300g for BS standard, 500g~550g for ASTM standard,
Or according to buyer's requirement.
Type of pipe: Round pipe, Square tube, rectangle tube. Seamless and welded.
Prime quality of our GI pipe
Main size of our round galvanized seamless steel tube
| Outer diameter (mm) |
Wall thickness (mm) |
Length (meters) |
| 1/2'' |
21.3 |
0.6~3.0 |
0.3m~12m |
| 3/4'' |
26.7 |
0.6~3.0 |
0.3m~12m |
| 1'' |
33.4 |
1.0~3.0 |
0.3m~12m |
| 1-1/4'' |
42.3 |
1.0~4.0 |
0.3m~12m |
| 1-1/2'' |
48.3 |
1.0~4.0 |
0.3m~12m |
| 2'' |
60.3 |
1.5~4.0 |
0.3m~12m |
| 2-1/2'' |
76.1 |
1.5~4.0 |
0.3m~12m |
| 3'' |
88.9 |
1.5~9.5 |
0.3m~12m |
| 4'' |
114.3 |
2.0~9.5 |
0.3m~12m |
| 5'' |
141.3 |
3.0~9.5 |
1m~12m |
| 6'' |
168.3 |
3.0~12.0 |
1m~12m |
| 8'' |
219.1 |
3.2~12.0 |
1m~12m |
| 10'' |
273 |
3.2~12.0 |
1m~12m |
| 12'' |
323.8 |
6.0~15.0 |
1m~12m |
| 14'' |
355.6 |
8.0~15.0 |
1m~12m |
| 16'' |
406.4 |
8.0~20.0 |
1m~12m |
Normal size of square/rectangle galvanized seamless steel tube
| Square tube(mm) |
Rectangle tube (mm) |
| 16×16×0.4~1.5 |
380×380×8.0~14.0 |
10×20×0.6~1.5 |
250×150×6~12.0 |
| 18×18×0.4~1.5 |
400×400×8.0~14.0 |
14×21×0.6~1.5 |
250×100×6~12.0 |
| 20×20×0.4~1.5 |
420×420×10.0~14.0 |
15×30×1.5~1.5 |
250×200×6~12.0 |
| 25×25×0.6~2.0 |
450×450×10.0~14.0 |
15×38×0.6~1.5 |
300×150×6~12.0 |
| 30×30×0.6~4.0 |
480×480×10.0~14.0 |
20×30×0.6~2.0 |
300×200×6~12.0 |
| 34×34×1.0~2.0 |
500×500×10.0~14.0 |
20×40×0.8~2.0 |
300×250×6~12.0 |
| 35×35×1.0~4.0 |
|
20×50×1.0~2.0 |
400×250×8~12.0 |
| 38×38×1.0~4.0 |
550×550×10.0~40.0 |
22×35×0.9~2.0 |
400×300×8~12.0 |
| 40×40×1.0~4.5 |
600×600×10.0~40.0 |
25×40×0.9~3.75 |
450×200×8~12.0 |
| 44×44×1.0~4.5 |
700×700×10.0~40.0 |
25×65×1.0~2.0 |
450×250×8~12.0 |
| 45×45×1.0~5.0 |
800×800×10.0~50.0 |
30×40×1.0~3.75 |
400×300×8~12.0 |
| 50×50×1.0~5.0 |
900×900×10.0~50.0 |
30×45×1.0~3.75 |
400×350×8~12.0 |
| 60×60×1.5~5.0 |
1000×1000×10.0~50.0 |
30×50×1.0~4.0 |
500×200×10~12.0 |
| 70×70×2.0~6.0 |
|
30×60×1.0~4.5 |
500×250×10~12.0 |
| 75×75×2.0~6.0 |
|
40×50×1.0~4.5 |
500×300×10~12.0 |
| 80×80×2.0~6.0 |
|
40×60×1.0~5.0 |
500×350×10~12.0 |
| 85×85×2.0~6.0 |
|
40×80×1.5~5.0 |
500×400×10~12.0 |
| 95×95×2.0~8.0 |
|
40×100×2.0~5.0 |
500×450×10~12.0 |
| 100×100×2.0~8.0 |
|
50×60×2.0~5.0 |
|
| 120×120×4.0~8.0 |
|
50×80×2.0~5.0 |
600×200×10~28.0 |
| 150×150×6.0~10.0 |
|
50×100×2.0~8.0 |
600×400×10~28.0 |
| 180×180×6.0~12.0 |
|
60×80×2.0~6.0 |
600×500×10~28.0 |
| 200×200×6.0~12.0 |
|
80×100×2.0~8.0 |
800×400×10~28.0 |
| 220×220×6.0~14.0 |
|
120×60×2.5~10.0 |
800×600×10~28.0 |
| 250×250×6.0~14.0 |
|
120×80×2.5~10.0 |
800×700×10~28.0 |
| 280×280×6.0~14.0 |
|
150×100×2.5~12.0 |
1000×400×10~28.0 |
| 300×300×8.0~14.0 |
|
180×150×2.5~12.0 |
1000×500×10~28.0 |
| 320×320×8.0~14.0 |
|
200×100×4~12.0 |
1000×600×10~28.0 |
| 350×350×8.0~14.0 |
|
200×150×4~12.0 |
1000×800×10~28 |
Our service
Make production according to customer's specific requirements strictly.
Accept inspection during the production or before shipment.
Provide the original copy of MTC(Mill testing certificate)
Provide the standard seaworthy packing.
Arrange the most professional shipment.
Audited Supplier 
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