D547Mo阀门堆焊焊条 符合 GB EDCrNi-B-15
说明: D547Mo是低氢钠型药皮的CrNiSiMo型阀门堆焊焊条。采用直流反接。堆焊金属具有良好的高温抗擦伤、抗冲蚀等性能,有较高的高温硬度,良好的热稳定性和抗疲劳性。堆焊金属时效强化效果显著,随着时效时间的增加,硬度和抗擦伤性能有进一步提高。
用途: 用于工作温度低于600℃的高压阀门密封面的堆焊。
熔敷金属化学成分(%)
化学成分 C Mn Si S P Ni Mo Cr Nb 其它元素总量
保证值 ≤0.18 0.60~5.00
3.80~6.50 ≤0.030 ≤0.040
6.5~12.0
3.5~7.0 14.0~21.0 0.5~1.2 ≤2.50
堆焊层硬度: HRC≥37
参考电流 (DC+)
焊条直径(mm) φ3.2 φ4.0 φ5.0
焊接电流(A) 80~120 120~160 160~200![](http://img12.makepolo.cn/images/formals/img/focus/608/620/4_4c98779cb92c7df88f6a968c03bdd542.jpg)
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