S355JR Longitudinally Welded High-quality LSAW Steel Pipes
Size: OD: 16 Inch - 80 Inch, DN350mm – DN2000mm.
Wall Thickness: 6mm-50mm.
Length: Single Random, Double Random & Customized Length up to 48 Meters.
Introduction to Straight Seam Submerged Arc Welded Pipe
Longitudinal submerged arc welding (LSAW) steel pipe is a high-quality steel pipe manufactured using a longitudinal submerged arc welding process. The production process involves first pressing steel plates into shape, and then welding them axially using single or multiple passes of submerged arc welding. This process ensures that the weld has a large penetration depth and stable quality, resulting in excellent pressure resistance and structural integrity. This product is particularly suitable for fields with stringent quality requirements, such as oil and gas pipelines and large structural columns and piles, and can meet the critical engineering needs of high pressure and high strength.
Specifications
| API 5L: GR.B, X42, X46, X52, X56, X60, X65, X70, X80 |
| ASTM A252: GR.1, GR.2, GR.3 |
| EN 10219-1: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H |
| EN10210: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H |
| ASTM A53/A53M: GR.A, GR.B |
| EN 10217: P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2 |
| DIN 2458: St37.0, St44.0, St52.0 |
| AS/NZS 1163: Grade C250 , Grade C350, Grade C450 |
| GB/T 9711: L175, L210, L245, L290, L320 , L360, L390 , L415, L450 , L485 |
| ASTMA671: CA55/CB70/CC65, CB60/CB65/CB70/CC60/CC70, CD70/CE55/CE65/CF65/CF70, CF66/CF71/CF72/CF73, CG100/CH100/CI100/CJ100 |
About us
We are a steel trading company focused on the international market, with "S355JR series welded steel pipes" as our core export product. The company has established a comprehensive multinational supply chain system. We have a professional international trade team that provides end-to-end services from steel procurement to logistics and customs clearance, ensuring that our products and services meet the regulatory requirements of different countries and regions. With stable supply capabilities and reliable after-sales support, we have established long-term partnerships with customers in many regions around the world, and are committed to becoming a professional S355JR welded steel pipe supplier in the international market.
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