Hot-dip galvanized steel sheet for 304 stainless steel composite plate and manufacturing method thereof

A technology of 304 stainless steel and hot-dip galvanized steel sheet, which is applied in hot-dip plating process, coating, metal material coating process, etc. problem, to achieve the effect of simple and reliable production, low production cost and energy saving
CN112430788AInactive Publication Date: 2021-03-02SHANGHAI MEISHAN IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI MEISHAN IRON & STEEL CO LTD
Publication Date
2021-03-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a hot-dip galvanized steel plate for a 304 stainless steel composite plate and a manufacturing method thereof, and mainly solves the technical problems that in the prior art, the stainless steel composite plate has an inward concave defect during bending machining, and the flatness of the stainless steel composite plate is low. According to the hot-dip galvanized steel plate for the 304 stainless steel composite plate provided by the invention, a base plate of the hot-dip galvanized steel plate comprises the following chemical components in percentage by weight: 0.06-0.08% of C, less than or equal to 0.06% of Si, 0.6-0.8% of Mn, 0.04-0.05% of P, less than or equal to 0.025% of S, 0.025-0.080% of Alt and the balance of Fe and inevitable impurity elements. The yield strength RP0.2 of the hot-dip galvanized steel sheet is 285-325MPa, the percentage elongation A80mm after fracture is 28-35%, and the 304 stainless steel composite plate made of the hot-dip galvanizedsteel sheet is mainly used for steel structural components of elevators and buildings.
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Description

technical field

[0001] The invention relates to a cold-rolled hot-dip galvanized steel sheet, in particular to a hot-dip galvanized steel sheet for a 304 stainless steel clad sheet and a manufacturing method thereof, belonging to the technical field of iron-based alloys. Background technique

[0002] Due to its excellent corrosion resistance, paintability, processability and economy, hot-dip galvanized alloy-coated steel sheets are widely used in the fields of household appliances, construction, industrial instruments and automobiles.

[0003] In order to meet the development needs of energy saving and emission reduction, researchers have developed stainless steel and hot-dip galvanized composite panels to replace pure stainless steel panels. Stainless steel and hot-dip galvanized composite panels can effectively reduce the production cost of enterprises. Especially in the elevator industry, the thickness of the hot-dip galvanized steel plate mainly used in the stainless ste...

Claims

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