Steel sheet for hot pressing, hot-pressed member, and hot-pressed member production method
AssigneeJfe Steel Corporation
InventorsRinta SATO, Yoichi MAKIMIZU
Life of this patent
Estimating the term…
Abstract
For a steel sheet for hot pressing having a coating layer to prevent scale formation, adhesion of metals to heating equipment is reduced, liquid metal embrittlement cracking during hot press forming is prevented, and excellent post-painting corrosion resistance is achieved. A coated steel sheet for hot pressing includes: a base steel sheet; and a coating layer of 7 μm to 20 μm in thickness provided on both sides of the base steel sheet, wherein the coating layer is made of Ni or a Ni-based alloy, and a Zn content in the coating layer is 0 mass % to 10 mass %.
Claims7
A steel sheet for hot pressing, comprising:
- a base steel sheet;
- and
- a coating layer of 7 μm to 20 μm in thickness provided on both sides of the base steel sheet,
- wherein the coating layer is made of Ni or a Ni-based alloy, and a Zn content in the coating layer is 0 mass % to 10 mass %.
A hot-pressed member comprising:
- a base steel sheet;
- and
- a coating layer of 7 μm to 20 μm in thickness provided on both sides of the base steel sheet,
- wherein the coating layer is made of Ni or a Ni-based alloy, and a Zn content in the coating layer is 0 mass % to 10 mass %.
Dependencies are inferred from the claim text.