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近几年来,随着石油工业的迅速发展,我厂开始生产抗拉强度≥90公斤/毫米~2的ZG18CrMnSiMoVA高强度铸钢件,这种钢的化学成分和机械性能见下表。
In recent years, with the rapid development of petroleum industry, our factory started to produce ZG18CrMnSiMoVA high-strength cast steel with tensile strength≥90kg / mm ~ 2. The chemical composition and mechanical properties of this steel are shown in the following table.