本发明提供了一种1180MPa级钢材、镀锌钢及其制备方法、汽车配件,属于钢材制备技术领域,所述1180MPa级钢材包括以下组分:C、Si、Mn、Cr、Nb、P、S、N、Fe和来自制备所述1180MPa级钢材的杂质;以质量分数计,在所述1180MPa级钢材中,所述Si的含量为:0.5%~1%;所述Cr的含量为:0.3%~0.8%;所述Nb的含量为:0.015%~0.03%。本申请提供的1180MPa级钢材,在确保1180MPa级抗拉强度下,同时具有高屈服强度和高延伸率的特性,可满足现有汽车配件的如高延伸率、高屈服、弯曲性、扩孔性等使用需求。
The invention provides 1180MPa-grade steel, galvanized steel, a preparation method of the 1180MPa-grade steel and an automobile part, and belongs to the technical field of steel preparation, and the 1180MPa-grade steel comprises the following components: C, Si, Mn, Cr, Nb, P, S, N, Fe and impurities from preparation of the 1180MPa-grade steel; in the 1180 MPa grade steel, the content of Si is 0.5%-1% by mass, the content of Ni is 0.5%-1% by mass, and the content of Ni is 0.5%-1% by mass. The content of the Cr is 0.3%-0.8%; and the content of the Nb is 0.015%-0.03%. The 1180MPa grade steel provided by the invention has the characteristics of high yield strength and high elongation under the condition of ensuring the 1180MPa grade tensile strength, and can meet the use requirements of high elongation, high yield, bendability, reaming property and the like of the existing automobile parts.
1180MPa级钢材、镀锌钢及其制备方法、汽车配件
2023-07-11
Patent
Elektronische Ressource
Chinesisch
High Strain Rate Tensile Behavior of 1180MPa Grade Advanced High Strength Steels
SAE Technical Papers | 2020
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