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ЭИ835钢是一个用锰和氮补充合金化的经济型奥氏体抗氧化钢。它适合于采用非真空感应+电渣重熔的工艺路线来冶炼。通过Ca处理,Ce脱硫和Ni-Mg微合金化,将S含量控制在50ppm以下,可以避免第四类低塑性。该钢中Mn的树枝晶偏析导致工艺塑性下降,性能各向异性,锻造前必须在1180℃充分均热。电渣锭在锻锤上锻造开坯时,第一火次宜于钢锭出炉后待其稍稍变凉,采取多面受力的小变形方案。
ЭИ 835 steel is an economical alloying austenitic steel reinforced with manganese and nitrogen. It is suitable for non-vacuum induction + ESR smelting process. The fourth type of low plasticity can be avoided by Ca treatment, Ce desulfurization and Ni-Mg microalloying, with S content below 50 ppm. Dendrite segregation of Mn in this steel leads to a decrease of the process plasticity and anisotropy of properties, and it must be sufficiently soaked at 1180 ° C before forging. Electroslag ingots forging billet forging billet, the first fire is less likely to be after the ingot was cool, to take a multi-faceted small deformation program.