S17700冷拉棒
S17700
『产品品种』:S17700圆棒、钢板、钢管、六角棒、线材、扁钢、带材、焊接材料等。
S17700双相不锈钢→→→美国棒材—|S17700圆棒,
S17700耐热不锈钢→→→日本卷材—|S17700冷轧板,
S17700奥氏体不锈钢→→→浦项厚板—|S17700热轧板,
S17700尿素级不锈钢→→→宝钢圆钢—|S17700冷拉棒,
S17700马氏体不锈钢→→→太钢锻件—|S17700中厚板,
S17700半马氏体不锈钢→→→大冶钢管—|S17700无缝管,
S17700铁素体型不锈钢→→→宝新带材—|S17700精密带,
S17700耐腐蚀性不锈钢→→→上钢五厂无缝管—|S17700冷拉管,
S17700沉淀硬化型不锈钢→→→兴澄特钢毛细管—|S17700精密管,
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S17700沉淀硬化型不锈钢的牌号及化学成分:
化学成分:
锰 Mn:≤1.00
硫 S :≤0.030
磷 P :≤0.035
铬 Cr:16.00~18.00
镍 Ni:6.50~7.75
铜 Cu:≤0.50
力学性能:抗拉强度 σb (MPa):固溶,≤1030; 565℃时效,≥1140; 510℃时效,≥1230条件屈服强度 σ0.2 (MPa):固溶,≤380;565℃时效,≥960;510℃时效,≥1030
伸长率 δ5 (%):固溶,≥20;565℃时效,≥5;510℃时效,≥4
断面收缩率 ψ (%):565℃时效,≥25;510℃时效,≥10
硬度 :固溶,≤229HB;565℃时效,≥363HB;510℃时效,≥388HB
热处理工艺:1)固溶,1000~1100℃快冷;
2)565℃时效,经固溶处理后, 760±15℃保持90min,在1h内冷却到15℃以下,保持30min,再加热到565±10℃保持90min,空冷;
3)510℃时效,经固溶处理后,955±10℃保持10min,空冷到室温在24h以内冷却到-73±6℃,保持8h,再加热到510±10℃保持60min,空冷。
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