Steel gardes:A,B,X52 X42 X46,X56,X60\X65 X70\X80,,,X95
L245,L290 L360 L415 L450,,,
Application: Used in the oil and gas industry in oxygen, water, oil pipeline.
Surface treatment :Black painting,varnish coating,PE,2PE,3PE,black oil coating,rust-proof painting ,galvanized or as customer's request.
Mechanical properties:
Standards | Grades | Tensile strength (MPa) | Yield strength (MPa) | showed | Elongation percentage (%) | 0 ℃ impact energy Akv (J) | Heat treatment state |
API SPEC 5L GB/T9711.2 | B | ≥415 | 245440 | ≤0.80 | 22 | ≥40 | Is a fire |
X42 | ≥415 | 290440 | ≤0.80 | 21 | ≥40 | Is a fire | |
X52 | ≥460 | 360510 | ≤0.85 | 20 | ≥40 | Is a fire | |
X60 | ≥520 | 415565 | ≤0.85 | 18 | ≥40 | Is a fire | |
X65 | ≥535 | 450570 | ≤0.90 | 18 | ≥40 | Quenching and tempering | |
X70 | ≥570 | 485605 | ≤0.90 | 18 | ≥40 | Quenching and tempering | |
