Shengtian Group are API 5L X42 / X46 / X52 / X60 / X65 / X70 ERW pipe experts, reliable API 5L welded pipe supplier and manufacturer in China.
ERW Standard and Line Pipe Grades:
| Grade A Carbon Steel |
(ASTM A53, 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 pipeas specified in the various ASTM and API specifications. |
| Grade B Carbon Steel |
(ASTM A53, A523,
API 5L PSL1) |
API 5L PSL2 |
| Minimum Yield Strength: |
35,000 psi |
35,000 psi |
| Maximum Yield Strength: |
None |
65,000 psi |
| Minimum Tensile Strength: |
60,000 psi |
60,000 psi |
| Maximum Tensile Strength: |
None |
110,000 psi |
|
Notes: This grade may be used for standard pipe, line pipe, or conduit pipeas specified in the various ASTM and API specifications.
|
| API 5L X42 |
PSL1 |
PSL2 |
| Minimum Yield Strength: |
42,000 psi |
42,000 psi |
| Maximum Yield Strength: |
None |
72,000 psi |
| Minimum Tensile Strength: |
60,000 psi |
60,000 psi |
| Maximum Tensile Strength |
None |
110,000 psi |
|
Notes: This is a standard line pipe grade specifiedin API (American Petroleum Institute) specification 5L.
|
| API 5L X46 |
PSL1 |
PSL 2 |
| Minimum Yield Strength: |
46,000 psi |
46,000 psi |
| Maximum Yield Strength: |
None |
76,000 psi |
| Minimum Tensile Strength: |
63,000 psi |
63,000 psi |
| Maximum Tensile Strength: |
None |
110,000 psi |
|
Notes: This is a standard line pipe grade specifiedin API (American Petroleum Institute) specification 5L.
|
| API 5L X52 |
PSL1 |
PSL2 |
| Minimum Yield Strength: |
52,000 psi |
52,000 psi |
| Maximum Yield Strength: |
None |
77,000 psi |
| Minimum Tensile Strength: |
66,000 psi |
66,000 psi |
| Maximum Tensile Strength: |
None |
110,000 psi |
| Notes: This is a standard line pipe grade specifiedin API (American Petroleum Institute) specification 5L. |
| API 5L X56 |
PSL1 |
PSL2 |
| Minimum Yield Strength: |
56,000 psi |
56,000 psi |
| Maximum Yield Strength: |
None |
79,000 psi |
| Minimum Tensile Strength: |
71,000 psi |
71,000 psi |
| Maximum Tensile Strength: |
None |
110,000 psi |
| Notes: This is a standard line pipe grade specifiedin 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: |
None |
110,000 psi |
| Notes: This is a standard line pipe grade specifiedin API (American Petroleum Institute) specification 5L. |
| API 5L X65 |
PSL1 |
PSL2 |
| Minimum Yield Strength: |
65,000 psi |
65,000 psi |
| Maximum Yield Strength: |
None |
87,000 psi |
| Minimum Tensile Strength: |
77,000 psi |
77,000 psi |
| Maximum Tensile Strength: |
None |
110,000 psi |
| Notes: This is a standard line pipe grade specifiedin API (American Petroleum Institute) specification 5L. |
| API 5L X70 |
PSL1 |
PSL2 |
| Minimum Yield Strength: |
70,000 psi |
70,000 psi |
| Maximum Yield Strength: |
None |
90,000 psi |
| Minimum Tensile Strength: |
82,000 psi |
82,000 psi |
| Maximum Tensile Strength: |
None |
110,000 psi |
| Notes: This is a standard line pipe grade specifiedin API (American Petroleum Institute) specification 5L. |
| Grade 1 Carbon Steel |
(ASTM A252) |
| Minimum Yield Strength: |
30,000 psi |
| Maximum Yield Strength: |
None |
| Minimum Tensile Strength: |
50,000 psi |
| Notes: This gradeis a standard grade for ASTM A252. The specification coversthe requirements for welded and seamless steel piling pipe. |
| Grade 2 Carbon Steel |
(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 coversthe requirements for welded and seamless steel piling pipe. |
| Grade 3 Carbon Steel |
(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 coversthe requirements for welded and seamless steel piling pipe. |
ERW line pipe manufacturing process:
Straight seam high frequency welded line pipe (ERW) is formed by forming a hot-rolled coil through a forming machine. The skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the pipe blank. Pressure welding is carried out under the action of a squeeze roller. Realize production. Carbon steel ERW welded pipes have simple production process, high production efficiency, many varieties and specifications, and less equipment, but their general strength is lower than seamless steel pipes.
API 5L is the standard for pipeline systems for the petroleum and natural gas industry, including the transportation of fluids such as petroleum, natural gas, water and oil. API 5L standards are divided into two levels, PSL1 and PSL2. The requirements of PSL1 level are relatively low, the testing requirements are not as stringent, and it is generally more cost-effective. The PSL2 level has higher technical requirements, including resistance to ductile fracture growth, sour service conditions and offshore service conditions.
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