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Austenitic stainless steel for stainless steel wires of metal hose

A technology of austenitic stainless steel and stainless steel wire, which is applied in the field of austenitic stainless steel, can solve the problems of insufficient tensile strength to meet the use requirements of metal hose lines, decreased corrosion resistance, rust and other problems, and achieves high tensile strength, Not easy to jump, good finish

Inactive Publication Date: 2011-09-21
泰州华泽金属工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, 304 stainless steel is generally used to make braided metal hose stainless steel wire, but after braiding, the wire has been hardened, so its corrosion resistance has also declined. Tests have shown that salt spray tests are generally performed after braiding , After 48 hours, it will start to appear rust spots and start to rust. In addition, the tensile strength of 304 stainless steel annealed soft wire φ0.20mm is generally 700-800MPa, and its tensile strength cannot meet the requirements for the use of metal hose lines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An austenitic stainless steel for metal hose stainless steel wire, which contains carbon, silicon, phosphorus, sulfur, manganese, chromium, nickel, nitrogen, molybdenum, copper and iron, and its composition mass percentage is: C0.056, Mn1.25, Si0.41, P0.032, S0.014, Cr18.23, N0.094, Cu0.52, Mo0.38, Ni8.12, balance iron. The stainless steel wire for metal hose produced by the present invention has been inspected by Jiangsu Stainless Steel Products Quality Supervision and Inspection Center. Its maximum force is Fm10.96KN, tensile strength Rm872.21MPa, lower yield strength ReL562.63MPa, section reduction rate Z100%, and elongation after breaking. rate of 38%.

Embodiment 2

[0025] An austenitic stainless steel for metal hose stainless steel wire, which contains carbon, silicon, phosphorus, sulfur, manganese, chromium, nickel, nitrogen, molybdenum, copper, rare earth elements and iron, and its composition mass percentage is: C0.056, Mn1 .25, Si0.41, P0.032, S0.014, Cr18.23, N0.094, Cu0.52, Mo0.38, Ni8.12, Re0.044, balance iron.

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PUM

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Abstract

The invention discloses austenitic stainless steel for stainless steel wires of a metal hose. The austenitic stainless steel comprises the following elements in percentage by weight: less than or equal to 0.05 to 0.07 percent of C, less than or equal to 0.3 to 0.7 percent of Si, less than or equal to 0.035 percent of P, less than or equal to 0.02 percent of S, less than or equal to 1 to 1.6 percent of Mn, 10 to 30 percent of Cr, 8.05 to 8.3 percent of Ni, 0.08 to 0.12 percent of N, 0.35 to 0.5 percent of Mo, 0.4 to 0.6 percent of Cu and the balance of Fe. The austenitic stainless steel for the stainless steel wires of the metal hose has higher corrosion resistance, plastic toughness and tensile strength. The produced stainless steel wires have higher surface finishment.

Description

technical field [0001] The invention relates to austenitic stainless steel, in particular to an austenitic stainless steel for braided metal hose stainless steel wire. Background technique [0002] 18-8 series austenitic stainless steel, such as 1Cr18Ni9, 1Cr18Ni9Ti, 0Cr18Ni9, etc. are traditional austenitic stainless steel, commonly known as "304". , It has been widely and stably used in production for a long time. Metal hose stainless steel wire must have the following characteristics: 1. Corrosion resistance. No rust after 72 hours of salt spray test after weaving. 2. High tensile strength. After braided into EPDM pipe, it provides some pressure resistance to prevent EPDM pipe from bursting. 3. Surface smoothness. The surface of the wire is smooth, and there can be no jumpers when weaving. In the prior art, 304 stainless steel is generally used to make braided metal hose stainless steel wire, but after braiding, the wire has been hardened, so its corrosion resistanc...

Claims

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Application Information

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IPC IPC(8): C22C38/58C22C38/44
Inventor 马建华蒋桂林范军平
Owner 泰州华泽金属工业有限公司