单重50t级别174mm12Cr2Mo1R(H)钢板研发
Special Steel(2022)
Abstract
介绍了舞钢生产的单重50 t级别的174 mm 12Cr2Mo1R(H)钢板的技术要求、工序工艺控制点及实物质量.通过冶炼时采用C/Al结合脱氧方式,铸锭进行900 ~940℃保温28 ~32 h退火处理,轧制时保证道次压下量20~ 30 mm,并采用正火+加速冷却+回火工艺,钢板组织均匀,各项力学性能及步冷脆化性能均能满足技术要求.钢板内部质量良好,探伤满足NB/T47013.3-2015及第1号修改单T1级.
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