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

　　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

　　D802

　　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