ECoCr-B焊条ECoCr-B焊条为钨铬钴合金-B硬度较合金-A高,韧性极佳,具抗冷间与热间冲击性好,交直流两用,电弧安定,穿透浅,焊道剥离性良好,比用气焊方式引起的硬度低,适宜大工件,焊接速度快的场所或气焊作业困难的场所最能发挥其效果,适用于切刀刀缘,万马刀辊轴及引气阀及石油钻具的焊补。 |
Oxford Alloy® #12 | |
SPECIFICATIONS | CLASSIFICATIONS |
AWS 5.13 | AWS ECoCr-B |
ASME SFA 5.13 | UNS W73012 |
Oxford Alloy #12 Coated is a non-ferrous, cobalt-chromium-tungsten alloy. This electrode is recommended for metal–to-metal abrasion involving high temperature and/or corrosive media with moderate impact. Oxford Alloy #12 Coated weld deposits are smooth and it acquires a high polish in use. This alloy is nonmag-netic and is not forgeable. It can be machined with difficulty using carbide tools. Oxford Alloy #12 Coated bonds well with weldable alloy steels, including stainless.
AWS Chemical Composition | ||||||
C | Co | Cr | W | Mn | Si | Ni |
1.0-1.7 | Bal | 25-32 | 7.0-9.5 | 2.0max | 2.0 max | 3.0 max |
Mo | Fe | OET | ||||
1.0 max | 5.0 max | 1.0 max |
TYPICAL MECHANICAL PROPERTIES | |
Hardness: | 34-47 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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