ASTM B16
B16 Engine poppet valve information report
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.36 | 0.44 | ||
| Si | 0.15 | 0.35 | ||
| P | 0.04 | |||
| S | 0.04 | |||
| Mn | 0.45 | 0.70 | ||
| Cr | 0.75 | 1.20 | ||
| Mo | 0.15 | 0.25 | ||
| Cu | 0.25 |
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