| 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 Min (0.2%, offset) |
Elongation in 4D Min (%) |
Reduction of Area Min (%) |
|||
| ksi | MPa | ksi | MPa | |||
| Gr1 | 35 | 240 | 20 | 138 | 24 | 30 |
| Gr2 | 50 | 345 | 40 | 275 | 20 | 30 |
| Gr4 | 80 | 550 | 70 | 483 | 15 | 25 |
| Gr5 | 130 | 895 | 120 | 828 | 10 | 25 |
| Gr7 | 50 | 345 | 40 | 275 | 20 | 30 |
| Gr9 | 90 | 620 | 70 | 483 | 15 | 25 |
| Gr11 | 35 | 240 | 20 | 138 | 24 | 30 |
| Gr12 | 70 | 483 | 50 | 345 | 18 | 25 |
| Gr16 | 50 | 345 | 40 | 275 | 20 | 30 |
| Gr23 | 120 | 828 | 110 | 759 | 10 | 15 |
| UNS No. | UNS No. | ||||
| Gr1 | UNS R50250 | CP-Ti | Gr11 | UNS R52250 | Ti-0.15Pd |
| Gr2 | UNS R50400 | CP-Ti | Gr12 | UNS R53400 | Ti-0.3Mo-0.8Ni |
| Gr4 | UNS R50700 | CP-Ti | Gr16 | UNS R52402 | Ti-0.05Pd |
| Gr7 | UNS R52400 | Ti-0.20Pd | Gr23 | UNS R56407 | Ti-6Al-4V ELI |
| Gr9 | UNS R56320 | Ti-3Al-2.5V | |||
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