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