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ASTM B265 Chemical Requirements
Element(max) Grade | Gr.1 | Gr.2 | Gr.3 | Gr.5 | Gr.7 | Gr.9 | Gr.11 | Gr.12 |
N | 0.03 | 0.03 | 0.05 | 0.05 | 0.03 | 0.03 | 0.03 | 0.03 |
C | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
H | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 |
Fe | 0.20 | 0.30 | 0.30 | 0.40 | 0.30 | 0.25 | 0.20 | 0.30 |
O | 0.18 | 0.25 | 0.35 | 0.20 | 0.25 | 0.15 | 0.18 | 0.25 |
Al | 5.5-6.75 3.5-4.5 | 2.5-3.5 | ||||||
V | 2.0-3.0 | |||||||
Pa | 0.12-0.25 | 0.12-0.25 | ||||||
Mo | 0.2-0.4 | |||||||
Ni | 0.6-0.9 | |||||||
Ti | balance | balance | balance | balance | balance | balance | balance | balance |