E109
MPa
α106
K1
ρ
kgm3
R106
Ωm
σU
MPa
σP
MPa
ϵL

49K2F (EP207)

For cores and pole pieces, magnets and solenoids.

For packages of ultrasonic transducers telephone membranes;

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Co, % Ni, % V, % P, % C, % S, %
GOST 10994-74 46.71–50.3 < 0.3 < 0.3 48–50 < 0.5 1.7–2.1 < 0.02 < 0.05 < 0.02

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}E109, MPaMPa \alpha\cdot 10^{6}α106, K^{-1}K1 \rhoρ, \frac{kg}{m^3}kgm3 R\cdot 10^{-6}R106, \Omega\cdot mΩm
20 220 8150 0.4
100 9.2

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \sigma_{P}σP, MPaMPa \epsilon_LϵL, % Treatment
Tape 490 345 1
Tape cold-work 1320 1

Standards

Standard Description
GOST 10994-74
TU 14-1-1185-75

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Co % Cobalt
Ni % Nickel
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur

Description of physical characteristics

Parameter Units of measurement Description
E\cdot 10^{9}E109 MPaMPa Elastic modulus
\alpha\cdot 10^{6}α106 K^{-1}K1 Coefficient of thermal (linear) expansion (range 20°C–T)
\rhoρ \frac{kg}{m^3}kgm3 The density of the material
R\cdot 10^{-6}R106 \Omega\cdot mΩm Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U}σU MPaMPa Ultimate tensile strength
\sigma_{P}σP MPaMPa Proportionality limit
\epsilon_LϵL % Elongation at break (longitudinal)