不锈钢Y30Cr13马氏体易切削钢。老牌号Y3Cr13。标准:GB/T 1220-1992●特性及使用范围:为改善 3Cr13切削性能的钢种。●化学成分:碳 C :0.26~0.40硅 Si:≤1.00锰 Mn:≤1.25硫 S :≤0.15磷 P :≤0.060铬 Cr:12.00~14.00镍 Ni:允许含有≤0.60钼 Mo:可加入≤0.60Y30C...
The sample Hatch Covers provided for testing have failed the testing requirements set forth by the Association of American Railroads in the Standard S-2037-92. Pictures 006 and 007 show the damage to the cover after the failed test procedure 3.3.7. (I have attached a PDF of ...