21850

Hardness 21850 Grade hot-rolled. (GOST 11036−75) HB 10 -1 = 131 MPa.

For use in magnetic circuits of the electrical apparatus and appliances

Classification

Country Section Category
CIS, Russia, Ukraine Electrical steel Unalloyed electrical steel

Chemical composition

Standard Fe, % Si, % Mn, % Cu, % P, % C, % S, %
GOST 11036-75 99.1–99.5 < 0.3 < 0.3 < 0.3 < 0.02 < 0.035 < 0.03

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\psi$$, % d5, % Treatment
Variety hot rolled. GOST 11036-75 270 60 24
The variety is calibrated. GOST 11036-75 350 4

Magnetic properties

Rolling $$H_c$$, $$A/m$$ $$B_{500}$$, $$T$$ $$B_{1000}$$, $$T$$ $$B_{2500}$$, $$T$$
Grade 50 1.44 1.53 1.62

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Grade GOST 11036-75 1310

Standards

Standard Description
GOST 11036-75

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\psi$$ % Reduction in cross section on fracture

Description of magnetic properties

Parameter Units of measurement Description
$$H_c$$ $$A/m$$ Magnetic coercivity (not more)
$$B_{500}$$ $$T$$ Magnetic induction (not less) in a magnetic field while magnetic field strength is 500 A/m
$$B_{1000}$$ $$T$$ Magnetic induction (not less) in a magnetic field while magnetic field strength is 1000 A/m
$$B_{2500}$$ $$T$$ Magnetic induction (not less) in a magnetic field while magnetic field strength is 2500 A/m