Paramtents
Grade Gr1, Gr2, Gr7, Gr9,Gr12
Elbow 45,90,180 degree Elbow,Tee Elbow
Reducers Reducing Tees,Concentric ,Eccentric
Lap Joint Stub Ends Bushings,Caps,Pipe Nipples,Pipe Plugs
Surface Pickling surface, Polished surface, sandblast
Specifications chemical processing, marine,Industrial
Packging & Delivery
Min Order1 kilogram
Briefing
Detailed
Grade | Chemical composition, weight percent (%) | ||||||||||||||
C ≤ |
O ≤ | N ≤ |
H ≤ |
Fe ≤ | Al | V |
Pd |
Ru | Ni | Mo | Other Elements Max. each | Other Elements Max. total | |||
Gr1 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | — | — | — | — | — | — | 0.1 | 0.4 | ||
Gr2 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | — | — | — | — | — | — | 0.1 | 0.4 | ||
Gr7 |
0.08 |
0.25 | 0.05 |
0.0015 |
0.30 | — | — |
0.12~0.25 |
— | — | — | 0.1 | 0.4 | ||
Gr9 |
0.08 |
0.25 | 0.03 |
0.015 |
0.30 | 2.5~3.5 | 2.0~3.0 |
— |
— | — | — | 0.1 | 0.4 | ||
Gr12 | 0.08 | 0.30 | 0.03 | 0.015 | 0.25 | 0.1 | 0.4 |
Grade | Physical properties | ||||||
Tensile strength Min |
Yield strength (0.2%, offset) |
Elongation in 50mm Min (%) |
|||||
ksi | MPa | Min | Max | ||||
ksi | MPa | ksi | MPa | ||||
Gr1 | 35 | 240 | 20 | 138 | 45 | 310 | 24 |
Gr2 | 50 | 345 | 40 | 275 | 65 | 450 | 20 |
Gr7 |
50 |
345 | 40 |
275 |
65 | 450 | 20 |
Gr9 |
90 |
620 | 70 |
483 |
— | — | 15 |
Gr12 | 70 | 483 | 50 | 345 | — | — | 18 |
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