ERCCoCr-A焊丝ERCCoCr-A 是Co-Cr-W堆焊合金中C及W含量最低,韧性最好的一种。能承受冷热条件下的冲击,产生裂纹的倾向晓,具有良好的耐腐蚀,耐热和耐磨性能。主要用于要求在高温工作时能保持良好的耐磨性及耐腐蚀性,如高温,高压阀门,热剪切刀刃,热钢模等。 |
Oxford Alloy®#6M | |
SPECIFICATIONS | CLASSIFICATIONS |
AWS 5.21 | AWS ERCCoCr-A |
ASME SFA 5.21 | UNS W73036 |
Oxford Alloy #6M is an alloy-cored wire for GMAW applications. This is the most widely used cobalt alloy having excellent resistance to many forms of mechanical and chemical degradation over a wide temperature range. Some attributes of the Oxford Alloy #6M are its outstanding self mated anti-galling properties, high temperature hardness and high resis-tance to cavitation erosion. Oxford Alloy #6M should be welded with direct current reverse polarity requiring proper preheat, controlled inter-pass temperatures and cooling rates. Some power supplies are used to reduce penetration and base metal dilution. Crack free deposits up to two layers. Some applications that the Oxford Alloy #6M is used for are flights of extrusion screws, sinker roll bushings in steel mills, soaking pit tong bits, and shafts.
AWS Chemical Composition | ||||||
C | Mn | Si | Cr | W | Fe | Ni |
0.7-1.4 | 2.0max | 2.0max | 25-32 | 3.0-6.0 | 5.0max | 3.0max |
Co | Mo | OET | ||||
Bal | 1.0max | 1.0max |
TYPICAL MECHANICAL PROPERTIES | |
Rockwell Hardness: | 23-47 HRC |
Note: The typical hardness values listed above are for multilayer welds. Hardness values for single deposits will be lower because of dilution from the base metal.
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