
AISI M4 Tool Steel Certified Reference Material
AISI M-4 Tool Steel Certified Reference Material (CRM) This M4 certified reference material is a tool 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 M4 Chemical Composition: Element Composition Fe Balance As 0.0058% C 1.42% Co 0.080% Cr 4.16% Cu 0.104% Mn 0.298% Mo 5.07% N 0.042% Nb 0.015% Ni 0.127% O 0.009% P 0.013% Pb 0.004% S 0.062% Si 0.60% Sn 0.0050% Ti 0.0018% V 3.97% W 5.55% M4 Industry Chemical Range: Element Composition Fe Balance C 1.25-1.40% Mn 0.15-0.40% Si 0.20-0.45% Cr 3.75-4.75% Ni 0.3% max Mo 4.25-5.50% W 5.25-6.50% V 3.75-4.50% C