Category 类 别 Trade- Mark 牌 号 Equivalent to China Standard 标准 Characteristics & application 特性和用途 Equivalent to AWS 相当AWS Hard-surfacing 硬 面 栈 焊 D 667 EDZCr-B-15 HRc8. Resistance to wear, gas corrosion and oxidation. Hardfacing of blast furnace hopper and cracker part. HRc8，耐磨、耐气蚀。栈焊高炉料钟、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。栈焊高温工件如热剪切刀刃 ECoCr-A D 812 EDCoCr-B-03 HRc5-50. Resistance to heat, wear and corrosion. Hardfacing of high temperature part such as internal-combustion engine valve. HRc5-50，耐热、耐蚀、耐磨。栈焊高温工件如内燃机阀 ECoCr-B D 822 HRc53. Resistance to Wear and heat, bad shock resistance. Hardfacing of rotating blade wheel of boiler. HRc53，耐热、耐磨，但抗冲击性差。栈焊锅炉旋转叶轮