ECoCr-E焊条 

ECoCr-E焊条

ECoCr-E为低碳、高钼的钴铬合金。优良的耐磨损性能,耐腐蚀、耐高温性能使其广泛应用于种阀门、剪切刀片、热冲床等行业。ECoCr-E显著的特点是在高温下仍然具有良好的耐磨性能,无磁性并且不可锻造。

Oxford Alloy® #21
SPECIFICATIONSCLASSIFICATIONS
AWS 5.13 AWS ECoCr-E
ASME SFA 5.13UNS W73021

DESCRIPTION / APPLICATION

Oxford Alloy #21 Coated is a low carbon, molybdenum strengthened, cobalt-chromium alloy. This electrode is recommended for metal-to-metal abrasion and high impact applications involving high temperatures and/or corrosive media. Some typical applications are valves of all kinds, shear blades, hot punches and saw guides. Oxford Alloy #21 Coated is also used as hot die material because of its high temperature strength and stability. Its inherent resistance to galling (under self-mated conditions), cavitation erosion, and corrosion resistance have made it a popular fluid valve seat-facing alloy. The weld deposits of the Oxford Alloy #21 Coated are smooth and normally acquire mirror-like finish in use. The deposits retain wear resistance at high temperatures. This alloy is nonmagnetic and is not forgeable. It can be machined with carbide tools. Oxford Alloy#21 Coated bonds well with weldable alloy steels, including stainless.

AWS Chemical Composition
CCoCrMoNiMnSi
0.15-0.40Bal 24-29 4.5- 6.5 2.0- 4.0 1.5 max 2.0 max
WFeOET    
0.50 max 5.0 max 1.0 max     

TYPICAL MECHANICAL PROPERTIES
Hardness: 20-32 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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