| 外套材质/Hull Material | 锻造钢管/无缝钢管 Forged Steel Pipe / Seamless 45# Steel Pipe |
| 正火硬度/Normalizing Hardness | 160BHN(HB180-200) |
| 延伸率/Elongation | 17% |
| 抗拉强度/Tensile Strength | >85000 PSI(610Mpa) |
| 屈服强度/Yield Strength | ≥6000 PSI(450Mpa) |
| 内套材质/Seeve Material | 离心铸造高铬，铬含量26-28% High Chromium Cast lron,Cr 26-28% |
| 内套厚度/Sleeve Thickness | 0.25-0.35 Inch |
| 内套淬火硬度/Sleeve Ouenching Hardness | HRC60-67 |
| 使用寿命/Service Life | 不低于1000小时 Not Less Than 1000 Hours In Normal Condition. |
