MG220•Nickelfreeelectrodewithnon-machinabledeposit.•Formulatedfordirtyanddifficult-to-weldcastiron.•Suitableforjoiningproblemcastirontosteel.•Successfulwhennickelalloysfailtoadhere.•Forusessuchas:burnedfurnacegrates,build-upofabrasionwornareas,crackedmachinebases,pumphousings,andlowqualitycastiron.•不含镍电极non-machinable存款。•制定脏和difficult-to-weld铸铁。•适合加入问题铸铁钢。•成功当镍合金无法坚持。•使用如:燃烧炉箅子的磨蚀磨损区域,打卡机基地、泵外壳、铸铁和低质量。美国MG焊条，美国MG220焊条，铸铁焊条，美国铸铁焊条，MG220焊条)