Seamless pipe is manufactured by hot rolling, cold drawing or extrusion process without any welded seam. It features high strength, good pressure resistance, uniform wall thickness and excellent mechanical properties, widely used in oil & gas transmission, petrochemical plants, power stations, boiler systems, mechanical structures and high-pressure pipeline projects.
It is especially suitable for harsh working conditions such as high temperature, high pressure, corrosive media and long-distance pipeline transportation.
Main Specifications & Standards
1. Main Standards
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ASTM A53 (Grade A, B)
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ASTM A106 (Grade A, B, C)
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API 5L (PSL1 & PSL2: Gr. B, X42, X46, X52, X56, X60, X65, X70)
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ASTM A333 (Low temperature service)
- EN 10216-2
- DIN 17175
2. Size Range
- Outer Diameter: 1/2" ~ 24" (DN15 ~ DN600)
- Wall Thickness: SCH 40, SCH 80, SCH 160, XXS, STD, XS
- Length: 6m, 12m, or customized
3. Materials
- Carbon Steel: 10# 20# Q235B, A105, A53(A/B), A106(B/C)
- Alloy Steel: 12Cr1MoV, 15CrMo, P11, P22, P91
- Stainless Steel: 304, 304L, 316, 316L, 321, 310S
4. Application
- Oil & gas line pipe
- Refining & petrochemical piping
- Boiler and heat exchanger tubes
- High-pressure fluid transportation
- Structural and mechanical piping
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