R20990

Classification

Country Section Category
USA Reactive and Refractory Metals and Alloys Chromium

Chemical composition

Standard Si, % Cr, % P, % C, % S, % Hf, %
UNS < 0.15 < 99 < 0.01 < 0.05 < 0.03 > 0.76

Information on suppliers

Standards

Standard Description
UNS

Description of chemical elements

Element Units of measurement Description
Si % Silicon
Cr % Chrome
P % Phosphorus
C % Carbon
S % Sulfur
Hf % Hafnium