
钴基焊条
Trade- | Equivalent to China Standard | Characteristics & application | Equivalent to AWS |
D 802 | EDCoCr-A-03 | HRc38-47. Resistance to heat, wear and corrosion. Hardfacing of high tdivperature part such as the edge of thermo-cutter. | ECoCr-A |
D 812 | EDCoCr-B-03 | HRc45-50. Resistance to heat, wear and corrosion. Hardfacing of high tdivperature part such as bustion engine valve. | ECoCr-B |
D 822 | HRc≥53. Resistance to Wear and heat, bad shock resistance. Hardfacing of rotating blade wheel of boiler. | ||
D 832 | EDCoCr-C-03 | HRc≥50. Wear and heat resistance. Hardfacing of high tdivperature part such as hot-rolling guided way. | ECoCr-C |
D 842 | EDCoCr-D-03 | HRc28-38. Corrosion and thermo-fatigue resistance, work harding. Hardfacing of hot ing die. |
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。