API 5L Gr.B Carbon Steel Spiral Welded Pipes 6m ERW Square Cold Rolled Black ASTM A252 for Oil/Gas Drill Pipeline Welded Steel Pipe
Product Spotlights
Welded steel pipe, also known as welded pipe, is a steel pipe made by welding steel plates or strips after being rolled and formed. Welded steel pipes are divided into straight seam welded pipes and spiral welded pipes according to the form of welds. Classified by production method: arc welded pipe, resistance welded pipe, (high-frequency, low-frequency) gas welded pipe, furnace welded pipe. The production process of straight seam welded pipe is simple, with high production efficiency, low cost, and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Narrow billets can be used to produce larger diameter welded pipes, and billets of the same width can also be used to produce welded pipes of different diameters. However, compared to straight seam pipes of the same length, the weld length increases by 30-100% and the production speed is lower. Thick wall coil products include: large coil, large diameter thick wall coil, various materials thick wall coil, hot rolled thick wall coil, cold rolled thick wall coil, etc.
All welded pipes can be made into galvanized welded pipes, which can be found through product consultation on the homepage.
The production process of straight seam welded pipe is simple, with high production efficiency, low cost, and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Narrow billets can be used to produce larger diameter welded pipes, and billets of the same width can also be used to produce welded pipes of different diameters. However, compared to straight seam pipes of the same length, the weld length increases by 30-100% and the production speed is lower. Therefore, smaller diameter welded pipes mostly use straight seam welding, while larger diameter welded pipes mostly use spiral welding.Straight seam welded pipes are divided into longitudinal submerged arc welding (LSAW) and electric resistance welding (ERW).
DN |
Welded steel pipe (ordinary) |
Welded steel pipe (thickened) |
Seamless steel pipe (hot rolled) |
Spiral welded steel pipe |
||||
pg≤1.0Mpa |
pg≤1.6Mpa |
pg≤2.5Mpa |
pg≤1.6Mpa |
|||||
D×∮ |
(Kg/m) |
D×∮ |
(Kg/m) |
D×∮ |
(Kg/m) |
D×∮ |
(Kg/m) |
|
DN15 |
21.3*2.75 |
1.25 |
21.3*3.25 |
1.44 |
---- |
---- |
---- |
---- |
DN20 |
26.8*2.75 |
1.63 |
26.8*3.5 |
2.01 |
---- |
---- |
---- |
---- |
DN25 |
33.5*3.25 |
2.42 |
33.5*4 |
2.91 |
32*3.5 |
2.46 |
---- |
---- |
DN32 |
42.3*3.25 |
3.13 |
42.3*4 |
3.77 |
38*3.5 |
2.98 |
---- |
---- |
DN40 |
48*3.5 |
3.84 |
48*4.25 |
4.58 |
45*3.5 |
3.58 |
---- |
---- |
DN50 |
60*3.5 |
4.88 |
60*4.5 |
6.16 |
57*3.5 |
4.62 |
---- |
---- |
DN65 |
75.5*3.75 |
6.64 |
75.5*4.5 |
7.88 |
73*4 |
6.81 |
---- |
---- |
DN80 |
88.5*4 |
8.34 |
88.5*4.75 |
9.81 |
89*4 |
8.38 |
---- |
---- |
DN100 |
114*4 |
10.85 |
114*5 |
13.44 |
108*4 |
10.26 |
---- |
---- |
DN125 |
140*4.5 |
15.04 |
140*4.5 |
18.24 |
133*4 |
12.72 |
---- |
---- |
DN150 |
165*4.5 |
17.81 |
165*5.5 |
21.63 |
159*4.5 |
17.14 |
168*5 |
20.1 |
Shandong Anli Metal Co., Ltd. is a leading comprehensive enterprise integrating various metal products. Our portfolio includes hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, steel sections, steel pipes, heat exchange pipes, automobile exhaust pipes, anchor rods, steel wires, and metal mesh. Additionally, we offer stainless steel, aluminum, copper, and metal raw materials such as billets, aluminum ingots, zinc ingots, magnesium ingots, and lead ingots.
With five production and sales bases strategically located in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan, and Tai'an, we boast over 100 production lines. Our group company has imported the most advanced technology from Germany, Japan, Belgium, the United States, and the United Kingdom for iron-smelting and steel processing. Equipped with a complete automatic system, we have become one of the largest and most advanced professional manufacturers in China.
We possess four nationally recognized laboratories, two technical engineering centers, and five corporate technology centers, ensuring the highest quality standards. Our products are exported to more than 50 countries and regions worldwide, including North America, South America, Europe, the Middle East, Russia, Africa, and others.
Company Philosophy:
• Quality First: We adhere strictly to production standards during production and inspection.
• Price Advantage: We offer discounts based on real market prices.
• Transaction Security: Customer funds are always protected.
• After-Sales Guarantee: We treat customer problems as our own.
• Long-Term Cooperation: Our quality assurance, price advantage, and sincere service ensure lasting partnerships.
Shandong Anli Metal, with quality as the foundation and technology as the leader, sincerely invites friends from all walks of life to join us creating a brilliant chapter in the metal manufacturing industry!
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