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 Cast iron 铸 铁 Z 308 EZNi Pure nickel, excellent general properties. Used to weld thin cast iron part and repair welding machined surface, such as guided way of machine tool. 纯镍，综合性能好。铸铁薄件及加工面补焊用，如机床导卫 ENi-Cl Z 408 EZNiFe Iron nickel, high strength and excellent ductility. Repair welding of important gray cast iron and nodular cast iron, such as cylinder cap. 镍铁，强度高、塑性好。重要灰铸铁及球铁焊补用，如汽缸盖 ENiFe-Cl Z 508 EZNiCu-1 Copper nickel, good machinability and bad crack resistance. Repair welding of sand hole and gray cast iron machined surface subject to no load. 镍铜，易加工，但抗裂性较差。不受力的灰铸铁加工面及砂眼补焊 ENiCu-B Copper alloys 铜 合 金 Cu 107 ECu Red copper, atmosphere and sea water corrosion an