Economical duplex stainless steel plate, method for improving strength of economical duplex stainless steel plate and application of economical duplex stainless steel plate
A duplex stainless steel, economical technology, applied in the field of economical duplex stainless steel sheets, can solve the problems of a large number of input personnel, complex vehicle manufacturing processes, and high life cycle costs, reducing maintenance, reducing energy consumption, and reducing vehicle body. weight reduction effect
Pending Publication Date: 2022-08-02
SHANXI TAIGANG STAINLESS STEEL CO LTD
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The invention belongs to the field of special stainless steel variety development and application, and particularly relates to an economical duplex stainless steel plate, a method for improving the strength of the economical duplex stainless steel plate and application of the economical duplex stainless steel plate. The method for improving the strength of the economical duplex stainless steel plate comprises the following steps: (1) carrying out first solution treatment on a duplex stainless steel hot-rolled coiled plate, and carrying out water cooling after discharging; (2) after cold rolling to a target thickness, carrying out second solution treatment; (3) the duplex stainless steel is strengthened through cold machining; and (4) the economical duplex stainless steel plate product is obtained through flattening and withdrawal and straightening. According to the method, further high strengthening of the economical duplex stainless steel cold plate is achieved, meanwhile, the strength and the ductility of a finished product are reasonably matched (Rp0.2 is larger than or equal to 630 MPa, and the ductility A50 is larger than or equal to 20%), and an ideal stainless steel material solution is provided for light weight of a vehicle body bearing structure.
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Property | Measurement | Unit |
Thickness | 2.5 | mm |
Thickness | 2.45 | mm |
Thickness | 1.6 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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