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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