PN2500超高压阀门和管件 力学性能
| 材料牌号 | 
 抗拉强度 Rm/MPa  | 
 下屈服强度 ReL/MPa  | 
 伸长率A (%)  | 
 断面收缩率Z (%)  | 
 冲击吸收能量 K/J  | 
 硬度 HBW  | 
| 33CrNi3MoA | ≥882 | ≥735 | ≥15 | ≥50 | ≥78.4 | 269~321 | 
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