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30CrSiMoVA系中碳低合金高强度钢。经调质处理后具有良好的综合机械性能,供航空部门作盘式刹车机轮摩擦片用。冶金厂生产6～14毫米热轧中板,经750℃左右高温回火软化处理,要求HB压痕直径≥4.2毫米。钢板需作全脱碳层检验。
30CrSiMoVA Department of carbon low-alloy high-strength steel. After quenching and tempering has a good comprehensive mechanical properties for the aviation sector for disc brake wheel friction plates. Metallurgical plant production of 6 to 14 mm hot-rolled plate, the high temperature of about 750 ℃ tempering softened, requiring HB indentation diameter ≥ 4.2 mm. Steel for full decarbonization test.