General Description of Seamless Standard and Line Pipe Grades


Click Here for an explanation of API5L PSL2.

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Grade1 | Grade 2 | Grade 3 | Grade A | Grade B | Grade C
API 5L X42 | API 5L X46 | API 5L X52 | API 5L X56 | API 5L X60 | API 5L X65 | API 5L X70


Grade 1 (ASTM A252)
Minimum Yield Strength: 30,000 psi
Maximum Yield Strength: None
Minimum Tensile Strength: 50,000 psi
Notes: This grade is a standard grade for ASTM A252. The specification covers the requirements for welded and seamless steel piling pipe.
Grade 2 (ASTM A252)
Minimum Yield Strength: 35,000 psi
Maximum Yield Strength: None
Minimum Tensile Strength: 60,000 psi
Notes: This grade is a standard grade for ASTM A252. The specification covers the requirements for welded and seamless steel piling pipe.
Grade 3 (ASTM A252)
Minimum Yield Strength: 45,000 psi
Maximum Yield Strength: None
Minimum Tensile Strength: 66,000 psi
Notes: This grade is a standard grade for ASTM A252. The specification covers the requirements for welded and seamless steel piling pipe.
Grade A (ASTM A53, A106, A523, API 5L PSL1 )
Minimum Yield Strength: 30,000 psi
Maximum Yield Strength: None
Minimum Tensile Strength: 48,000 psi
Notes: This grade may be used for standard pipe, line pipe, or conduit pipe as specified in the various ASTM and API specifications.
   
Grade B (ASTM A53, A106, A523, API 5L PSL1) API 5L PSL2
Minimum Yield Strength: 35,000 psi35,000 psi
Maximum Yield Strength: None 65,000 psi
Minimum Tensile Strength: 60,000 psi60,000 psi
Maximum Tensile Strength: None110,000 psi
Notes: This grade may be used for standard pipe, line pipe, or conduit pipe as specified in the various ASTM and API specifications.
Grade C (ASTM A106)
Minimum Yield Strength: 40,000 psi
Maximum Yield Strength: None
Minimum Tensile Strength: 70,000 psi
Notes: This grade can only be manufactured by the seamless process and is intended for high-temperature service as outlined in ASTM A106.
API 5L X42 PSL1PSL2
Minimum Yield Strength: 42,000 psi42,000 psi
Maximum Yield Strength: None72,000 psi
Minimum Tensile Strength: 60,000 psi60,000 psi
Maximum Tensile Strength None 110,000 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.
API 5L X46 PSL1PSL 2
Minimum Yield Strength: 46,000 psi 46,000 psi
Maximum Yield Strength: None76,000 psi
Minimum Tensile Strength: 63,000 psi63,000 psi
Maximum Tensile Strength: None110,000 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.
API 5L X52 PSL1PSL2
Minimum Yield Strength: 52,000 psi52,000 psi
Maximum Yield Strength: None77,000 psi
Minimum Tensile Strength: 66,000 psi66,000 psi
Maximun Tensile Strength: None110,000 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.
API 5L X56 PSL1 PSL2
Minimum Yield Strength: 56,000 psi56,000 psi
Maximum Yield Strength: None79,000 psi
Minimum Tensile Strength: 71,000 psi71,000 psi
Maximum Tensile Strength: None 110,000 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.
API 5L X60 PSL1 PSL2
Minimum Yield Strength: 60,000 psi 60,000 psi
Maximum Yield Strength: None 82,000 psi
Minimum Tensile Strength: 75,000 psi 75,000 psi
Maximum Tensile Strength: None110,000 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.
API 5L X65 PSL1PSL2
Minimum Yield Strength: 65,000 psi65,000 psi
Maximum Yield Strength: None87,000 psi
Minimum Tensile Strength: 77,000 psi 77,000 psi
Maximum Tensile Strength: None110,000 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.
API 5L X70 PSL1PSL2
Minimum Yield Strength: 70,000 psi 70,000 psi
Maximum Yield Strength: None90,000 psi
Minimum Tensile Strength: 82,000 psi 82,000 psi
Maximum Tensile Strength: None110,000 psi
Notes: This is a standard line pipe grade specified in API (American Petroleum Institute) specification 5L.


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