ASTM API 5L X42 pipe:For grades equal to or lower than API X42, the weld seam shall be heat treated so as to simulate a normalizing heat treatment, or the API 5L X42 pipe shall be processed in such a manner that no untempered martensite remains.
ASTM API 5L X42 Seamless and Welding Steel Pipe Chemical Composition Analysis:
Grade |
C |
Mn |
P |
S |
|
Seamless pipe |
||||
|
ASTM API 5L X42 |
0.28 |
1.30 |
0.030 |
0.030 |
|
Welded pipe |
||||
|
ASTM API 5L X42 |
0.26 |
1.30 |
0.030 |
0.030 |
ASTM API 5L X42 Seamless and Welding Steel Tube Mechanical Properties:
Grade |
Pipe body of seamless and welded pipes |
Weld seam of EW, LW, SAW and COW pipe |
|
|
Yield strength |
Tensile strength |
Tensile strength |
|
|
ASTM API 5L X42 |
290 (42 100) |
290 (42 100) |
415 (60 200) |
ASTM API 5L X42 welding steel pipe application
Low and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling,
chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industry.
ASTM API 5L X42 welding steel pipe surface
Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE.
ASTM API 5L X42 welding steel pipe surface finishes:
Bare, Oiled, Mill Varnish, Galv, FBE, FBE Dual, 3LPE, 3LPP, Coal Tar, Concrete Coating and Tape Wrap.
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