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 temperature 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 temperature part such as internal-combustion
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
temperature 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 forging die. |
|
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 |
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 |
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。
熔敷金属化学成分/%
C-0.70~1.40 Si≤2.0 Mn≤2.0 Cr-25.0~32.0 Fe≤4.0
W-3.0~6.0 其他≤4.0 Co-余量
堆焊层硬度HRC≥40
D812钴基堆焊焊条
D812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蚀性,用于高温高压阀门、高压泵的轴套筒和内衬套筒以及化钎设备的斩刀刃口等
熔敷金属化学成分/%
C-1.00~1.70 Si≤2.00 Mn≤2.00 Cr-25.0~32.0 Fe≤5.0
W-7.0~10.0 其他≤4.0 Co-余量
堆焊层硬度HRC≥44
D822钴基堆焊焊条 D822是高碳钴铬钨合金焊芯的钴基堆焊焊条,采用直流反接,渣覆盖性好,成形美观,具有优良的耐磨、耐热和耐腐蚀性,在650℃高温也能保持这些特性。用于牙轮钻头轴承、锅炉的旋转叶轮、粉碎机刃口.螺旋送料机等磨损部件的堆焊
焊缝金属化学成分(%)
C--1.75~3.0 Cr--25.0~33.0 W--11.0~19.0 Mn--≤2.0
Si--≤2.0 Fe--≤5.0 Co--余量 其他总量≤4.0
堆焊层硬度HRC≥53
参考电流:
规格φ(mm) 4.0 5.0 6.0
电流(A) 120~160 140~190 150~210
D842钴基堆焊焊条 说明:钴基4号低碳钴铬钨合金焊芯的堆焊焊条,采用直流反接,堆焊金属在800℃仍能保持良好的看热疲劳性和耐蚀性。
用途:用于高温条件下承受冲击和冷热交错的工件堆焊,如热锻模,阀门密封面等,具有良好的性能。
熔敷金属化学成分/%
C Si Mn Cr Fe W 其他 Co
0.20~0.50 ≤2.00 ≤2.00 23.0~32.0 ≤5.00 ≤9.50 ≤7.00
余量
堆焊层硬度HRC28~35
Co101 用于高常温硬度,较强耐磨粒磨损,耐腐蚀性能。用于旋转密封环,牙轮轴承,套筒,钻头等。
Co104(司太立钴基4号)
用于较高耐磨损性能,极好的高温强及耐腐蚀性能。用于铜,铝合金热压模,热挤压模,干电池模具
等。
Co106(司太立钴基6号)较好的耐磨,耐高温,抗热震冲击,抗擦伤性能。用于发动机气门,高温高压阀门密封面,热剪刀刃,
涡轮机叶片等。
Co112(司太立钴基12号)较高耐磨损,耐腐蚀抗擦伤性能。用于高温,高压阀门,剪切刀刃,锯齿,螺旋推杆等。
Co120高常温高温硬度,较强耐磨粒磨损耐磨蚀性能。用于高压阀座,磨损棉板。
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