Novel non-magnetic stainless steel

A new type of non-magnetic stainless steel technology, applied in the field of alloy materials, can solve the problems of increased cost, insufficient corrosion resistance and wear resistance, and no antibacterial function

Active Publication Date: 2017-06-09
京津冀钢铁联盟(迁安)协同创新研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as people's performance requirements for materials are getting higher and higher, the strength and wear resistance of the material during use can no longer meet people's requirements, especially when working in harsh environments, its corrosion resistance and wear resistance Significantly insufficient performance, not only affects the appearance quality, but also greatly affects the service life of the material, resulting in increase

Method used

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  • Novel non-magnetic stainless steel

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Effect test

Embodiment 1

[0022] A new type of non-magnetic stainless steel, the components of the new type of non-magnetic stainless steel are calculated by weight percentage (the following % all represent weight percentages): carbon is 0.15%, nickel is 6%, chromium is 13%, manganese is 9%, Niobium is 0.62%, vanadium is 0.28%, molybdenum is 1.5%, titanium is 3.7%, rare earth is 0.53%, silver is 0.13%, copper is 0.7%, the total amount of phosphorus and sulfur is not more than 0.035%, and the balance is iron and its unavoidable impurities, the novel non-magnetic stainless steel is produced through the following steps:

[0023] Step 1. Use a medium-frequency induction furnace for smelting. Put the raw iron into the converter to heat and melt it. After the raw iron is completely melted, adjust the temperature of the molten pool so that the temperature of the molten pool is controlled at about 1580°C, and then add a decarburizer into the molten pool. , desulfurizer, deoxidizer, decarburization, desulfuriza...

Embodiment 2

[0033]A new type of non-magnetic stainless steel, the components of the new type of non-magnetic stainless steel are calculated by weight percentage (the following % all represent weight percentages): carbon is 0.18%, nickel is 3.15%, chromium is 8.71%, manganese is 11.8%, 4.80% silicon, 0.57% niobium, 0.23% vanadium, 1.5% molybdenum, 3.56% titanium, 0.31% rare earth, the total amount of phosphorus and sulfur does not exceed 0.035%, and the balance is iron and its unavoidable impurities , the novel non-magnetic stainless steel is made through the following steps:

[0034] Step 1. Use a medium-frequency induction furnace for smelting. Put the raw iron into the converter to heat and melt it. After the raw iron is completely melted, adjust the temperature of the molten pool so that the temperature of the molten pool is controlled at about 1580°C, and then add a decarburizer into the molten pool. , desulfurizer, deoxidizer, decarburization, desulfurization and deoxidation of molte...

Embodiment 3

[0044] A new type of non-magnetic stainless steel, the composition of the new type of non-magnetic stainless steel is calculated by weight percentage (the following % all represent weight percentage): carbon is 0.21%, nickel is 3%, chromium is 13%, manganese is 11%, 5% silicon, 0.48% niobium, 0.13% vanadium, 1.7% molybdenum, 4% titanium, 0.27% rare earth, the total amount of phosphorus and sulfur does not exceed 0.035%, and the balance is iron and its unavoidable impurities , the novel non-magnetic stainless steel is made through the following steps:

[0045] Step 1. Use a medium-frequency induction furnace for smelting. Put the raw iron into the converter to heat and melt it. After the raw iron is completely melted, adjust the temperature of the molten pool so that the temperature of the molten pool is controlled at about 1580°C, and then add a decarburizer into the molten pool. , desulfurizer, deoxidizer, decarburization, desulfurization and deoxidation of molten iron in the...

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Abstract

The invention discloses novel non-magnetic stainless steel. The novel non-magnetic stainless steel comprises the components of, by weight, 0.13-0.17% of carbon, 4-7% of nickel, 9-15% of chromium, 9-11% of manganese, 0.58-0.77% of niobium, 0.13-0.32% of vanadium, 1.3-1.8% of molybdenum, 3-4% of titanium, 0.23-0.53% of rare earth, 0.056-0.15% of silver, 0.5-0.9% of copper, less than or equal to 0.035% of phosphorus and sulfur, and the balance iron and inevitable impurities. By changing the alloy proportion and adding alloy elements with the sterilization function, the stainless steel has the prerequisite conditions for good performance, then by optimizing the smelting process and the heat treatment process, the stainless steel has the sterilization and bacteriostatic function at the same time under the condition that the stainless steel has the good mechanism performance, and the embarrassing situation of existing bacteriostatic stainless steel is changed.

Description

technical field [0001] The invention relates to an alloy material, in particular to a novel non-magnetic stainless steel. Background technique [0002] At present, the non-magnetic steel widely used in domestic industry is 18-8 austenitic stainless steel, and the smelting and processing technology of non-magnetic steel is very mature in China. However, as people's performance requirements for materials are getting higher and higher, the strength and wear resistance of the material during use can no longer meet people's requirements, especially when working in harsh environments, its corrosion resistance and wear resistance Significantly insufficient performance, not only affects the appearance quality, but also greatly affects the service life of the material, resulting in increased costs and prone to safety accidents. At the same time, most of the stainless steels used in food containers do not have antibacterial function, and the performance of the antibacterial stainless...

Claims

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Application Information

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IPC IPC(8): C22C38/58
Inventor 肖勇
Owner 京津冀钢铁联盟(迁安)协同创新研究院有限公司
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