Difference Between PSL1 And PSL2 Pipes An API (American Petroleum Institute) 5L line pipes are manufactured in two forms, PSL 1 and PSL 2. PSL stands for Product Specification Levels. PSL stands for Product Specification Levels. These specs cover seamless and welded steel line pipe from grades X42 through X80. API 5L is suitable for transporting gas, water, and oil, and is usually found in the hydrocarbon petroleum and natural gas industry. PSL-1 is a loose standard quality for line pipe, whereas PSL-2 contains additional testing requirement, stricter chemical physicals, along with different ceiling limits of mechanical properties, and require Charpy impact testing conditions. Furthermore, additional testing requirements under PSL-2 include CVN testing, non-destructive inspection of seamless products, certification to SR15, and mandatory traceability throughout the entire production process. Most FERC, DOT, or FEMSA lines require PSL-2, meaning these types of requirements are a must when supplying pipe for pipelines that are regulated by any of these governing bodies. Parameter Grade range Max C for Seamless pipe Max C for Welded pipe Max P Max S Carbon Equivalent Yield Strength, Max UTS (Ultimate Tensile Strength), Max Size Range Type of Ends Seam Welding Electric Welds: Welder frequency Heat Treatment of Electric
PSL 1 A25 through X70 0.28% for grades ≥ B 0.26% for grades ≥ B 0.030% for grades ≥ A 0.03% Only when purchaser specifies SR18 None
PSL 2 B through X80 0.24% 0.22% 0.03% 0.02% Maximum required for each grade Maximum for each grade
None
Maximum for each grade
0.405" through 80" 4.5" through 80" Plain end, Threaded end, Bevelled Plain End end special coupling pipe All methods: All methods: continuous welding except continuous welding limited to A25 and laser welding No Minimum
kHz minimum 100
Required for grades >X42
Required for all grades (B
Established in 1975, the Metallica Metals Group has its operations spread across major cities in India. We are a pioneer in the stainless steel pipes, carbon steel pipes and alloy steel pipes manufacturing and processing industry. Our products are exported to over 70 countries across the world, while in India we have supplies to even the remote areas. With over 250 tons of sale in stainless steel and carbon steel pipes every day, Metallica has emerged as a prominent vendor for many buyers in India and Overseas.
Welds Fracture Toughness
None Traceable only until all tests are Traceability passed unless SR15 is specified Traceable only until all tests are Certification passed Non-Destructive Inspection of Only when purchaser Seamless specifies SR4 Repair by Welding of Pipe Permitted by agreement Body Plate and Skelp Repair by Welding of Weld Permitted by agreement Seams without Filler Metal
through X80) Required for all grades Traceable after completion of tests (SR15.2) mandatory Certificates (SR15.1) mandatory SR4 mandatory Prohibited Prohibited
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Established in 1975, the Metallica Metals Group has its operations spread across major cities in India. We are a pioneer in the stainless steel pipes, carbon steel pipes and alloy steel pipes manufacturing and processing industry. Our products are exported to over 70 countries across the world, while in India we have supplies to even the remote areas. With over 250 tons of sale in stainless steel and carbon steel pipes every day, Metallica has emerged as a prominent vendor for many buyers in India and Overseas.