N8K18M14

Cryogenic engineering .

For products with high strength with sufficient ductility and toughness, high resistance to small plastic deformations, brittle and fatigue failure, used in engineering, instrument making and tool industry martensitic-aging steel.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Structural steel	High strength high alloy structural steel

Chemical composition

Standard	Fe, %	Co, %	Ni, %	Mo, %
Standard	Fe, %	Co, %	Ni, %	Mo, %
GOST 2591-2006	60	18	8	14

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Physical characteristics

Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
20	8470

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Alloy	GOST 2591-2006				3500	3400	3	1	After aging 480-510 ° C

Standards

Standard	Description
Standard	Description
GOST 2591-2006	GOST 2591-2006

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Co	%	Cobalt
Ni	%	Nickel
Mo	%	Molybdenum

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\rho$	$\frac{kg}{m^3}$	The density of the material

Description of mechanical properties

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