1.1520 (C70U)

Classification

Country Section Category
Germany Non-alloy Special Steels Tool Steel

Chemical composition

Standard Fe, % Si, % Mn, % P, % C, % S, %
EN ISO 4957 98.49–99.15 0.1–0.3 0.1–0.4 < 0.03 0.65–0.75 < 0.03

Information on suppliers

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 183

Analogues

CIS, Russia, Ukraine
U7A

Standards

Standard Description
EN ISO 4957

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
P % Phosphorus
C % Carbon
S % Sulfur