431 Stainless Steel Certified Reference Material

431 Martensitic Stainless Steel Certified Reference Material (CRM) This 431 certified reference material is a stainless steel alloy widely used as a standard for calibrating and verifying your spectrometer (XRF, ICP-OES, Spark-OES, etc.). This material is precisely manufactured and certified to have traceable measurements and specified impurity levels, ensuring reliable results for laboratories performing calibration, quality control, and materials testing. Certified 431 Stainless Steel Chemical Composition:  Element Composition Fe Balance C 0.155% Cr 15.78% Ni 2.23% Mn 0.55% Si 0.34% P 0.022% S 0.0032% Al 0.004% As 0.004% B 0.004% Ca 0.0007% Co 0.048% Cu 0.33% Mo 0.125% N 0.056% O 0.005% Sn 0.008% Ti 0.002% W 0.015% V 0.040%   431 Stainless Steel Chemical Range: Fe: Balance C: 0.20% max Cr: 15-17% Ni: 1.25-2.50% Mn: 1% max Si: 1% max P: 0.04% max S: 0.030% max