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钴基焊条
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Trade-
Mark
牌 号
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Equivalent to China Standard
相当国标
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Characteristics & application
特性和用途
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Equivalent to AWS
相当AWS
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D 802
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EDCoCr-A-03
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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
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ECoCr-A
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D 812
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EDCoCr-B-03
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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
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ECoCr-B
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D 822
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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
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D 832
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EDCoCr-C-03
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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
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ECoCr-C
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D 842
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EDCoCr-D-03
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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
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D802钴铬钨合金焊芯的钴基堆焊焊条，采用直流反接，堆焊金属在650℃工作仍能保持良好的耐磨性和耐腐蚀性，用于要求在650℃左右工作仍能保持良好的耐磨性和耐腐蚀性的场合，或承受冲击和冷热交错的部位，如堆焊高温高压阀门及热剪切刀刃等。
熔敷金属化学成分/%
C-0.70～1.40 Si≤2.0 Mn≤2.0 Cr-25.0～32.0 Fe≤4.0
W-3.0～6.0 其他≤4.0 Co-余量
堆焊层硬度HRC≥40
D812钴基堆焊焊条
D812钴铬钨合金焊芯的钴基堆焊焊条，采用直流反接，堆焊金属在650℃工作仍能保持良好的耐磨性和耐蚀性，用于高温高压阀门、高压泵的轴套筒和内衬套筒以及化钎设备的斩刀刃口等
熔敷金属化学成分/%
C-1.00～1.70 Si≤2.00 Mn≤2.00 Cr-25.0～32.0 Fe≤5.0
W-7.0～10.0 其他≤4.0 Co-余量
堆焊层硬度HRC≥44
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