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公开(公告)号:CN117821846A
公开(公告)日:2024-04-05
申请号:CN202311758446.6
申请日:2023-12-20
申请人: 南京钢铁股份有限公司
IPC分类号: C22C38/02 , C22C38/04 , C22C38/06 , C22C38/48 , C22C38/46 , C22C38/50 , C22C38/44 , C22C38/54 , C22C33/04 , C21D8/02 , C21D1/18 , B21B3/02
摘要: 本发明公开了一种超低温1000MPa级高强水电钢板,其化学成分以重量百分比计为0.085~0.115%的C,0.90~1.40%的Mn,0.10~0.28%的Si,≤0.015%的P,≤0.003%的S,0.020~0.080%的Al,≤0.05%的Nb,0.030~0.060%的V,0.008~0.020%的Ti,1.60~2.50%的Ni,0.30~0.60%的Cr,0.30~0.60%的Mo,0.001~0.002%的B,≤0.26%的Pcm,其余部分为Fe和杂质。本发明提高了钢板屈服强度和抗拉强度,满足了‑80℃横向低温冲击要求,钢板最大厚度120mm,实现钢板较低预热温度使用。