摘要:
A ferritic stainless steel sheet exhibiting small increase in strength after aging heat treatment in the present invention contains, by mass %, C: 0.020% or less, Cr: 10.0% to 25.0%, N: 0.020% or less, Sn: 0.010% to 0.50%, and one or more of Ti: 0.60% or less, Nb: 0.60% or less, V: 0.60% or less, and Zr: 0.60% or less so as to satisfy the following Equation (1), in which the difference between stress σ1 (N/mm2) after prestrain imparting tensile deformation with 7.5% of strain, and upper yield stress σ2 (N/mm2) when the steel sheet is subjected to heat treatment at 200° C. for 30 minutes and then to tension again after the tensile deformation is 8 or less. (Ti/48+V/51+Zr/91+Nb/93)/(C/12+N/14)≧1.0 (1)
摘要翻译:本发明的时效热处理后的强度稍小的铁素体系不锈钢板以质量%计含有C:0.020%以下,Cr:10.0〜25.0%,N:0.020%以下,Sn:0.010% 至0.50%,Ti:0.60%以下,Nb:0.60%以下,V:0.60%以下,Zr:0.60%以下的一种以上,满足下式(1),其中 在钢板在200℃下进行热处理后,预应变赋予拉伸变形与应变的7.5%之间的应力σ1(N / mm2)与上屈服应力σ(2 / N / mm2)之间的差异 30分钟后拉伸变形8次以后再次拉伸。 (Ti / 48 + V / 51 + Zr / 91 + Nb / 93)/(C / 12 + N / 14)≥1.0(1)
摘要:
Ferritic stainless steel sheet which is excellent in ridging resistance which comprises, by mass %, Cr: 10 to 30%, Sn: 0.005 to 1%, C: 0.001 to 0.1%, N: 0.001 to 0.1%, Si: 0.01 to 3.0%, Mn: 0.01 to 3.0%, P: 0.005 to 0.1%, and S: 0.0001 to 0.01% and has a balance of Fe and unavoidable impurities and which has an X-ray diffraction strength in the {100} orientation from a surface layer to t/4 (“t” is sheet thickness) of 2 or more.
摘要:
Ferritic stainless steel sheet which is excellent in ridging resistance which comprises, by mass %, Cr: 10 to 30%, Sn: 0.005 to 1%, C: 0.001 to 0.1%, N: 0.001 to 0.1%, Si: 0.01 to 3.0%, Mn: 0.01 to 3.0%, P: 0.005 to 0.1%, and S: 0.0001 to 0.01% and has a balance of Fe and unavoidable impurities and which has an X-ray diffraction strength in the {100} orientation from a surface layer to t/4 (“t” is sheet thickness) of 2 or more.
摘要:
The present invention focuses on Sn and has as its problem to not only improve the corrosion resistance and rust resistance of Cr-containing ferritic stainless steel but also improve the ridging resistance. The present invention derives the relationship between Ap, which shows the γ-phase rate at 1100° C. due to a predetermined ingredient, and Sn in ferritic stainless steel which becomes a dual phase structure of α+γ in the hot rolling temperature region, applies and adds Sn, and hot rolls the steel to give a total rolling rate of 15% or more in 1100° C. or higher hot rolling to thereby obtain ferritic stainless steel sheet which has good ridging resistance, which also has excellent corrosion resistance and rust resistance, and which can be applied to general durable consumer goods: 0.060≦Sn≦0.634−0.0082 Ap 10≦Ap≦70
摘要:
Provided is a stainless steel substrate for a solar cell, the stainless steel substrate including, by mass %, Cr: 9% to 25%, C: 0.03% or less, Mn: 2% or less, P: 0.05% or less, S: 0.01% or less, N: 0.03% or less, Al: 0.005% to 5.0%, Si: 0.05% to 4.0%, and a remainder including Fe and unavoidable impurities, in which an oxide film containing (i) Al2O3 in an amount of 50% or more or containing (i) Al2O3 and (ii) SiO2 in a total amount of 50% or more is formed on a surface of stainless steel having a composition which contains Al: 0.5% or more and/or Si: 0.4% or more and satisfies the following expression (1). Cr+10Si+Mn+Al>24.5 (1)