900-MPa-grade anti-riot steel plate for ATM machine and manufacturing method thereof

A technology for ATM machines and manufacturing methods, applied in the field of anti-riot steel plates for 900MPa ATM machines and its manufacture, can solve the problems of high alloy and process costs and no advantages, achieve low alloy and process costs, and improve plasticity and impact resistance , the effect of good cold bending and welding properties

Active Publication Date: 2019-01-01
SHOUGANG CORPORATION
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  • Claims
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Problems solved by technology

[0004] The present invention provides a 900MPa level anti-riot steel plate for ATM machines and its manufacturing method, which solves or partially solves the problem of high-strength steel above 900MPa level in the prior art, which generally adopts quenching and tempering after hot rolling, and its alloy and process costs are lower. Relatively high, technical problems that have no advantages in the application and promotion of ATM machines

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  • 900-MPa-grade anti-riot steel plate for ATM machine and manufacturing method thereof
  • 900-MPa-grade anti-riot steel plate for ATM machine and manufacturing method thereof
  • 900-MPa-grade anti-riot steel plate for ATM machine and manufacturing method thereof

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Embodiment Construction

[0032] see Figure 1-2 , a method for manufacturing a 900MPa level anti-riot steel plate for ATM machines provided by the embodiment of the present invention, in order to enable those skilled in the art to which the application belongs to understand the application more clearly, the following in conjunction with the attached figure 1 , the technical solution of the present application will be described in detail through specific embodiments.

[0033] The invention provides a 900MPa grade anti-riot steel plate for ATM machines, the chemical composition of which is calculated by mass percentage: C: 0.07-0.1%; Si: 0.2-0.6%; Mn: 1.10-1.5%; Al: 0.01-0.06% ; P≤0.025%; S≤0.004%; N≤0.004%; O≤0.015%; Cr: 1.0~1.3%; Nb: 0.02~0.06%; V: 0.02~0.08%; .

[0034]Control the carbon equivalent CE≤0.55, the carbon equivalent CE is an important parameter to judge the welding performance, if the carbon equivalent CE value is greater than 0.55, the welding performance will decline significantly, C...

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Abstract

The invention discloses a 900-MPa-grade anti-riot steel plate for an ATM machine and a manufacturing method thereof, belonging to the field of preparation technology for metal materials. The 900-MPa-grade anti-riot steel plate comprises the following chemical components by mass: 0.07 to 0.1% of C, 0.2 to 0.6% of Si, 1.0 to 1.5% of Mn, 0.01 to 0.06% of Al, no more than 0.015% of P, no more than 0.004% of S, no more than 0.004% of N, 1.0 to 1.3% of Cr, 0.02 to 0.06% of Nb and 0.02 to 0.08% of V, with the balance being Fe and unavoidable impurities. The 900-MPa-grade anti-riot steel plate prepared by using the manufacturing method in the invention has yield strength reaching the 750 MPa grade, tensile strength reaching 900MPa or more and elongation A reaching 15% or more, and also has good cold bending and welding performance.

Description

technical field [0001] The invention relates to the technical field of metal material preparation, in particular to a 900MPa level anti-riot steel plate for ATM machines and a manufacturing method thereof. Background technique [0002] There is no proprietary grade of steel for ATM machines in China. Currently, 700MPa steel grades with good cold forming performance are mainly used in the manufacture of ATM machines. The product specification is 12.5mm, mainly precipitation-strengthened steel plates. The S500MC-S700MC series in the European standard En10149, the DOMEX series of the Swedish SSAB Steel Plate Co., Ltd., and the domestic Baosteel BS550-BS700MC series. With the development of the safe and ATM machine industry, in order to improve the impact resistance of iron cabinets, prolong the anti-flame cutting time, and meet the safety requirements such as fire protection and prying resistance, insurance products are produced with hot-rolled low-alloy high-strength and ultra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/24C22C38/26C22C33/04C21D8/02
CPCC21D8/0205C22C33/04C22C38/02C22C38/04C22C38/06C22C38/24C22C38/26
Inventor 李晓林崔阳肖宝亮程政金钊杜倩姚志强
Owner SHOUGANG CORPORATION
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