Paramtents
Grade Gr1, Gr2, Gr3, Gr4,Gr5,Gr7,Gr9,Gr12
OD 200~1300mm
ID 100-900mm
Technology Forged, Cold-Rolled, Machining
Condition, Hot rolled(R), Annealed (M) Annealed (M)
Surface Pickling surface, machined surface, sandblast sur
Specifications Aerospace, Chemical Industryl, Industrial
Packging & Delivery
Min Order1 kilogram
Briefing
Detailed
Grade |
Gr1, Gr2, Gr3, Gr4, Gr5,Gr7,Gr9,Gr12,Gr23 |
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Standard | ASTMB381 | ||
Technology |
Hot-Rolled, Cold-Rolled, Machining |
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Surface |
Pickling surface, Polished surface, sandblasted surface |
||
Specifications |
Aerospace, Chemical Industry , Industrial
|
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 | ||
Gr3 |
0.08 |
0.35 | 0.05 |
0.0015 |
0.30 | — | — |
— |
— | — | — | 0.1 | 0.4 | ||
Gr4 |
0.08 |
0.25 | 0.03 |
0.015 |
0.30 | — | — |
— |
— | — | — | 0.1 | 0.4 | ||
Gr5 | 0.08 | 0.20 | 0.05 | 0.015 | 0.40 | 5.5~6.75 | 3.5~4.5 | — | — | — | — | 0.1 | 0.4 | ||
Gr7 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | — | — | 0.12~0.25 | — | — | — | 0.1 | 0.4 | ||
Gr9 | 0.08 | 0.15 | 0.03 | 0.015 | 0.25 | 2.5~3.5 | 2.0~3.0 | — | — | — | — | 0.1 | 0.4 | ||
Gr12 | 0.08 | 0.30 | 0.03 | 0.015 | 0.30 | — | 0.6~0.9 | 0.2~0.4 | 0.1 | 0.4 | |||||
Gr23 | 0.08 | 0.13 | 0.03 | 0.0125 | 0.25 | 5.5~6.5 | 3.5~4.5 | — | — | — | — | 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 |
Gr3 |
65 |
450 | 55 |
380 |
80 | 550 | 18 |
Gr4 |
80 |
550 | 70 |
483 |
95 | 655 | 15 |
Gr5 | 130 | 895 | 120 | 828 | — | — | 10 |
Gr7 | 50 | 345 | 40 | 275 | 65 | 450 | 20 |
Gr9 | 90 | 620 | 70 | 483 | — | — | 15 |
Gr12 | 70 | 483 | 50 | 340 | — | — | 18 |
Gr23 | 120 | 828 | 110 | 759 | — | — | 10 |
OD | Tolerance | ID | Tolerance | Thickness | Tolerance | |||||
200~400 | +3 -1 | 100~300 | +1 -3 | 35~120 | +3 -1 | |||||
401~700 | +4 -2 | 150~300 | +2 -4 | 40~160 | +4 -2 | |||||
701~900 | +5 -3 | 300~700 | +3 -5 | 50~180 | +5 -3 | |||||
901~1300 | +6 -3 | 400~900 | +3 -6 | 70~250 | +6 -3 |
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