耐腐蚀不锈钢

奥氏体耐腐蚀不锈钢系列包含了更多的金属元素(例如镍,铬还有钼),它们都能抵抗在潮湿的化学反应下所引起的多种腐蚀反应,并仍能保持奥氏体的面心立方晶结构基质。以致我们能制造出各种各样的高品质不锈钢管。

 

奥氏体铁素体材料

MST designationNearest equivalent standardTypical chemical composition 1)DensityMin. mechanical prop. at RT
 UNSENCmaxCrNiMoCuothers  Rp0.2 Yield StrengthRm Tensile Strength
         g/cm3lb/in3MPaksiMPaksi
DMV 18.5S315001.44240.0318.54.82.7Si 1.7; N 0.17.80.284406463092
DMV 22.5S318031.44620.0322.05.53.0N 0.17 2)7.80.284506562090
DMV 25.7S312600.0325.06.53.00.5N 0.20; W 0.57.80.2845065690100
DMV 25.7 CuS325501.45070.0325.07.03.51.5N 0.22 2)7.80.2855080760110
DMV 25.7 NS327601.45010.0325.07.04.00.5N 0.25; W 0.5 2)7.80.2855080750109
DMV 25.7 NS 3)S327501.44100.0325.57.04.00.25N 0.3 2)7.80.2855080750109

1) All figures in weight percentage. In case of order, the limits of the order specification will apply.
2) Min PRE value is controlled.
3) DMV 25.7NS grade is for umbilical tubing only.