
| 牌號 | C | S | Mn | P | S | Cr | Ni | Cu | 
| 10# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.25 | 
| 抗拉強度σb(MPa) | 屈服強度σs (MPa) | 伸長率δ5 (%) | 斷面收縮率ψ (%) | 硬度 | 試樣尺寸 | 
| ≥410(42) | ≥245(25) | ≥25 | ≥5 | 未熱處理, ≤156HB | 試樣尺寸25mm |