Grade | Status | Specification | ||
Gr1,Gr2,Gr4,Gr5,Gr7,Gr9,Gr11, Gr12,Gr16,Gr23 |
Hot Rolled(R) Cold Rolled(Y) Annealed(M) Solution treatment(ST) |
Thickness(mm) | Width(mm) | Length(mm) |
5.0~60 | ≥400 | ≤ 6000 |
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 |
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 | — | 0.12~0.25 | — | 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 |
Gr11 | 0.08 | 0.18 | 0.03 | 0.15 | 0.2 | — | — | 0.12~0.25 | — | — | — | 0.1 | 0.4 |
Gr12 | 0.08 | 0.25 | 0.03 | 0.15 | 0.3 | — | — | — | — | 0.6~0.9 | 0.2~0.4 | 0.1 | 0.4 |
Gr16 | 0.08 | 0.25 | 0.03 | 0.15 | 0.3 | — | — | 0.04~0.08 | — | — | — | 0.1 | 0.4 |
Gr23 | 0.08 | 0.13 | 0.03 | 0.125 | 0.25 | 5.5~6.5 | 3.5~4.5 | — | — | — | — | 0.1 | 0.1 |
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 |
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 |
Gr11 | 35 | 240 | 20 | 138 | 45 | 310 | 24 |
Gr12 | 70 | 483 | 50 | 345 | — | — | 18 |
Gr16 | 50 | 345 | 40 | 275 | 65 | 450 | 20 |
Gr23 | 120 | 828 | 110 | 759 | — | — | 10 |
Thickness | Width tolerance | ||
400~1000 | 1000~2000 | >2000 | |
5.0~6.0 | ±0.35 | ±0.40 | ±0.60 |
6.0~8.0 | ±0.40 | ±0.60 | ±0.80 |
8.0~10.0 | ±0.50 | ±0.60 | ±0.80 |
10.0~15.0 | ±0.70 | ±0.80 | ±1.00 |
15.0~20.0 | ±0.70 | ±0.90 | ±1.10 |
20.0~30.0 | ±0.90 | ±1.00 | ±1.20 |
30.0~40.0 | ±1.10 | ±1.20 | ±1.50 |
40.0~50.0 | ±1.20 | ±1.50 | ±2.00 |
50.0~60.0 | ±1.60 | ±2.00 | ±2.50 |