EP61 (33CNMS)

Classification

Country Section Category
CIS, Russia, Ukraine Precision alloys Soft Magnetic Precision Alloys

Chemical composition

Standard Fe, % Si, % Mn, % Co, % Cr, % Ni, % P, % C, % S, % Mo, %
29.94–34.6 1.8–2.2 0.3–0.5 28–30 < 0.1 32.5–34 < 0.015 < 0.03 < 0.015 2.8–3.2

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 185 8300–8320 0.7

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ d5, % Treatment
Tape GOST 15515-16 100 Transverse 500–550 300–360 20–25

Magnetic properties

Rolling $$H_c$$, $$A/m$$ $$\mu_{max}$$, $$MH/m$$ $$B_{2500}$$, $$T$$
Tape < 13000 < 5000 > 32

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Tape GOST 15515-16 200–260

Properties

Property
On delivery, it has a guaranteed level of magnetic properties in variable fields.

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Co % Cobalt
Cr % Chrome
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength

Description of magnetic properties

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