发明申请
US20140056754A1 HOT PRESS-FORMED PRODUCT, PROCESS FOR PRODUCING SAME, AND THIN STEEL SHEET FOR HOT PRESS FORMING 有权
热压成型产品,其生产方法和用于热压成型的薄钢板

HOT PRESS-FORMED PRODUCT, PROCESS FOR PRODUCING SAME, AND THIN STEEL SHEET FOR HOT PRESS FORMING
摘要:
There is provided a hot press-formed product, including a thin steel sheet formed by a hot press-forming method, and having a metallic structure that contains bainitic ferrite at 70% to 97% by area, martensite at 27% by area or lower, and retained austenite at 3% to 20% by area, the remainder structure of which is at 5% by area or lower, whereby balance between strength and elongation can be controlled in a proper range and high ductility can be achieved.
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