GB/T 3091 standard specifies the size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certification of welded steel pipe for low-pressure fluid transportation.
GB/T 3091 standard applies to water, air heating Yan steam and gas and other low-pressure fluid transmission with straight seam electric welded steel pipe, straight seam submerged arc welded (SAWL) steel pipe and spiral submerged arc welded (SAWH) steel pipe, and their different requirements were marked, not marked at the same time applicable to the straight-seam high-frequency electric welded steel pipe, straight seam submerged arc welded steel pipe and spiral submerged arc welded steel pipe.
GB/T 3091 Carbon Steel Pipe Specification
| Commodity | Longitudinal carbon Pipe Straight welded LSAW Steel Pipe | |
| Outer diameter | ERW / HFW | LSAW / DSAW |
| 1/8 - 20 inch (10.3 - 508 mm) |
12 - 56 inch (323.8 - 1,420 mm) |
|
| Wall thickness | 0.4 - 16 mm | 6.0 - 40 mm |
| Length | 5.8 ~ 12.0 m or upon customers' requirements | |
| Standard | GB/T 3091, GB/T 13793, ASTM A252, ASTM A53, ASTM A500, EN 10210, EN 10219, API 5L, DIN 1626/1615, DIN 17120, etc. | |
| Surface | Prime quality (bared, oiled, color paint, 3LPE, or other anti-corrosive treatment) | |
| Inspection | With Chemical Composition and Mechanical Properties Analysis; Dimensional and Visual Inspection, also with Nondestructive Inspection. |
|
| Delivery Time | 1. 20-45 days after received deposit or confirmed L/C 2. Depends on your order quantity |
|
| Payment Terms | 1. T/T: 30% T/T advance, 70% balance copy of B/L 2. L/C: at sight 3. T/T and L/C: 30% T/T advance, 70% L/C |
|
FAQ
1. What is your MOQ?
A: One container can ship 5 tons of mixed size products.
2. What are your payment terms?
A: 30% T/T in advance, 70% before FOB shipment; 30% T/T in advance, 70% on the basic copy of BL of CIF. 3.
3. What is your delivery time?
A: 5-15 working days after the deposit arrives at the port.
4. How long has your company been in business?
A: We are a gold medal manufacturer of steel pipes and have been in the steel industry for 16 years. 5.
5. Can we visit your factory to check the production process and quality?
A: Of course, you are always welcome.
6. Do you have certificates and material composition analysis reports about steel mills?
A: Yes, we have professional quality analysis department.
Hot Tags: gb/t 3091 lsaw steel pipe, China gb/t 3091 lsaw steel pipe manufacturers, suppliers, factory, ASME SA179 Pipe Tubes, A213 heat exchanger tubes, EN 10216 1 P265 alloy seamless pipes, JIS G3455 STS 480 carbon steel pipe, P235TR2 high pressure carbon steel pipe, ASTM A106 Grade B seamless carbon steel pipe
