Structural steel alloy 36KNM

  • Chemical composition
C Carbon <0.03
Si Silicon <0.4
Mn Manganese <0.5
P Phosphorus <0.015
S Sulfur <0.015
Mo Molybdenum 2.8 — 3.2
Ni Nickel 21.5 — 22.5
Co Cobalt 35.5 — 37.0
Fe Iron Rest
Density — 8520 kg / m3

For magnetic cores operating in sea water; Steel has high induction in weak and medium fields and low coercive force; with high corrosion resistance in sea water.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Co, % Ni, % P, % C, % S, % Mo, %
GOST 10994-74 36.34–40.2 < 0.4 < 0.5 35.5–37 21.5–22.5 < 0.015 < 0.03 < 0.015 2.8–3.2

Information on suppliers

Physical characteristics

Temperature, °C \rho, \frac{kg}{m^3} R\cdot 10^{-6}, \Omega\cdot m
20 8200 0.48

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{P}, MPa \epsilon_L, % \psi, % Treatment
Tape 490 245 45 70

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Tape cold-work 170

Standards

Standard Description
GOST 10994-74

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
\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
\sigma _{U} MPa Ultimate tensile strength
\sigma_{P} MPa Proportionality limit
\epsilon_L % Elongation at break (longitudinal)
\psi % Reduction in cross section on fracture