Category
 类 别

Trade-
 Mark
 牌 号

Equivalent to China Standard
 相当国标

Characteristics & application
 特性和用途

Equivalent to AWS
 相当AWS

Hard-surfacing

硬

面

堆

焊

D 667

EDZCr-B-15

HRc≥48. Resistance to wear, gas corrosion and oxidation. Hardfacing of  blast furnace hopper and cracker part.
 HRc≥48，耐磨、耐气蚀、抗氧化。堆焊高炉料钟、破碎机件

D 802

EDCoCr-A-03

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