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304J1 austenitic stainless steel hot-rolled steel belt for deep drawing and production method of steel belt

A technology of austenitic stainless steel and production method, applied in the field of stainless steel, can solve the problems of large difference in product performance, cold rolling peeling, hot rolling edge cracking, etc., to avoid high temperature ferrite precipitation, low cold work hardening degree, good The effect of cold working plasticity

Active Publication Date: 2015-05-20
SICHUAN JINGUANG IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since this steel type has not been included in the national standard, the reference standards of various enterprises are different, resulting in large differences in product performance
If the composition control is unreasonable, there will be problems such as hot-rolled edge cracking, cold-rolled peeling, bursting, poor deep drawing performance, poor corrosion resistance, and high production costs.

Method used

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  • 304J1 austenitic stainless steel hot-rolled steel belt for deep drawing and production method of steel belt
  • 304J1 austenitic stainless steel hot-rolled steel belt for deep drawing and production method of steel belt

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Experimental program
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Effect test

Embodiment 1

[0045] The smelting process is electric arc furnace + GOR converter + LF refining furnace.

[0046] The main raw materials for trial 304J1 are composed of high-carbon ferrochromium, self-produced ferronickel, nickel-chromium pig iron, imported ferronickel, electrolytic copper plate, electrolytic nickel and other alloy materials. Among them, high-carbon ferrochromium, self-produced ferronickel, and nickel-chromium pig iron contain relatively high carbon and silicon elements, and self-produced ferronickel and nickel-chromium pig iron contain relatively high sulfur and phosphorus elements.

[0047] The main function of the electric arc furnace is to use electric energy to melt high-carbon ferrochromium, self-produced ferronickel, nickel-chromium pig iron, imported ferronickel, and oxidize silicon and carbon in molten steel through power transmission and oxygen blowing to melt the charge and meet the requirements. At the same time, some elements such as chromium and nickel are oxi...

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Abstract

The invention discloses a 304J1 austenitic stainless steel hot-rolled steel belt for deep drawing and a production method of the steel belt, which belong to the technical field of stainless steel. The 304J1 austenitic stainless steel hot-rolled steel belt comprises the following chemical components: 0.03%-0.07% of C, 0.40%-0.70% of Si, 1.80%-2.00% of Mn, not more than 0.045% of P, not more than 0.005% of S, 17.05%-17.35% of Cr, 6.02%-6.12% of Ni, 1.50%-1.60% of Cu, 0.03%-0.07% of N, and the balance of iron and inevitable impurities. By controlling the chemical components through smelting, and controlling the process in continuous casting, hot rolling and pickling, the stainless steel hot-rolled steel belt disclosed by the invention has relatively good mechanical performance.

Description

technical field [0001] The invention belongs to the technical field of stainless steel, and in particular relates to a 304J1 austenitic stainless steel hot-rolled strip for deep drawing and a production method thereof. Background technique [0002] Since the financial crisis in 2008, the stainless steel industry as a whole has faced greater market competition and pressure, and with further fluctuations in the international nickel price, imported austenitic stainless steel with Mn, N and other elements replacing some Ni elements has appeared on the market product. [0003] SUS304J1 (06Cr16Ni7Cu2) stainless steel reduces the nickel element and adds copper element in an appropriate amount, which not only reduces the production cost, but also improves the formability of the steel strip due to the addition of copper element. Its compound forming and deep processing are equivalent to 304. In addition, 304J1 has excellent aging crack resistance and welding performance, and is non-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/58C21D8/04C23G1/08
Inventor 李六一
Owner SICHUAN JINGUANG IND GRP
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