Stainless steel wire, spring and method of manufacturing the spring
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United States of America Patent
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Issued Date -
Apr 12, 2007
app pub date -
Oct 28, 2004
filing date -
Oct 29, 2003
priority date (Note) -
Abandoned
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Abstract
There is provided a stainless steel wire having both excellent corrosion resistance and an excellent fatigue strength while being fabricable with high productivity. A stainless steel wire consists of 0.01 to 0.25 mass % C, 0.01 to 0.25 mass % N, 0.4 to 4.0 mass % Mn, 16 to 25 mass % Cr, 8.0 to 14.0% Ni and the balance Fe with impurities, wherein the C+N content satisfies 0.15 mass % .ltoreq.C+N .ltoreq.0.35 mass %. The stainless steel wire contains 15 vol. % martensite phase induced by a drawing and the balance austenite phase and has a texture which causes the austenite phase to exhibit diffraction intensities satisfying both I(200)/I(111).gtoreq.2.0 and I(220)/I(111).gtoreq.3.0 by X-ray diffraction in the longitudinal direction of the steel wire.
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