P911材质用于核电设备的热交换器,衡阳直供
化学成分:,C:,0.09-0.13,,,,Mn:,0.3-0.6,,,,,P:,0.02,,,,,S:0.01,,,,,Si:,0.1-0.5,,,,,Cr:,8.5-9.5,,,,Mo:0.9-1.1,,,,,,V:,0.18-0.25,,,,,,Cb:,0.06-0.1,,,N:,0.04-0.09,,,,Al:0.02,,,,Ni:,0.4,,,,,,W:,0.9-1.1,,,,B:,0.0003-0.006,,,,Ti:,0.01,,,,Zr,,:,0.01
机械性能:抗拉强度:620MPa,,,,,,屈服度:440MPa
特性:W元素的增加较T91钢七抗高温氧化和高温腐蚀能力显著提高,Mo的适当降低增强钢的可焊/焊口的稳定性,B为晶界强化元素大幅提高钢抗高温蠕变性能,高温 /抗蠕变/抗蚀均优于T91钢。
执行标准:执行标准:ASTM,A335/A213a-04
用途:,超超临界壁温达650度的过热器,壁温600度以下的集箱/导管。也可用于核电设备的高温热交换器及相应的辅助管线。
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