hrc38-47. resistance to heat, wear and corrosion. hardfacing of high temperature part such as the edge of thermo-cutter. hrc38-47,耐热、耐蚀、耐磨。堆焊高温工件如热剪切刀刃
ecocr-a
d 812
edcocr-b-03
hrc45-50. resistance to heat, wear and corrosion. hardfacing of high temperature part such as internal-combustion engine valve. hrc45-50,耐热、耐蚀、耐磨。堆焊高温工件如内燃机阀
ecocr-b
d 822
hrc≥53. resistance to wear and heat, bad shock resistance. hardfacing of rotating blade wheel of boiler. hrc≥53,耐热、耐磨,但抗冲击性差。堆焊锅炉旋转叶轮
d 832
edcocr-c-03
hrc≥50. wear and heat resistance. hardfacing of high temperature part such as hot-rolling guided way. hrc≥50,耐热、耐磨。堆焊高温工件如热轧导轨
ecocr-c
d 842
edcocr-d-03
hrc28-38. corrosion and thermo-fatigue resistance, work harding. hardfacing of hot forging die. hrc28-38,耐蚀、抗热疲劳,具有加工硬化性。堆焊热锻模
d842钴基堆焊焊条 说明:钴基4号低碳钴铬钨合金焊芯的堆焊焊条,采用直流反接,堆焊金属在800℃仍能保持良好的看热疲劳性和耐蚀性。 用途:用于高温条件下承受冲击和冷热交错的工件堆焊,如热锻模,阀门密封面等,具有良好的性能。 熔敷金属化学成分/% c si mn cr fe w 其他 co 0.20~0.50 ≤2.00 ≤2.00 23.0~32.0 ≤5.00 ≤9.50 ≤7.00 余量