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Characteristics for grade N12K8M4G2 ( Н12К8М4Г2 )

Grade :	N12K8M4G2 ( Н12К8М4Г2 )
Classification :	High-alloy structurall steel
Equivalent grades:	Is absent

Chemical composition in % for grade N12K8M4G2 ( Н12К8М4Г2 )

Mn	Ni	Mo	Co
2.3 - 2.3	12 - 12	4 - 4	8 - 8

Comment: shows the average concentration of alloying elements

Mechanical properties under Т=20^oС for grade N12K8M4G2 ( Н12К8М4Г2 )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
			1700	1680	7	50	400	Ageing

Specification :

Mechanical properties :
s_в	- Tensile strength , [MPa]
s_T	- Yield stress, [MPa]
d₅	- Specific elongation at fracture , [ % ]
y	- Reduction of area , [ % ]
KCU	- Impact strength , [ kJ / m²]
HB	- Brinell hardness , [MPa]

Physical properties :
T	- Test temperature , [Grade]
E	- Young modulus , [MPa]
a	- Coefficient of linear expansion (range 20^o - T ) , [1/Grade]
l	- Termal (heat) condition coefficient , [Watt/(m·Grade)]
r	- Density , [kg/m³]
C	- Specific heat ( range 20^o - T ), [J/(kg·Grade)]
R	- Electrical resistance , [Ohm·m]

N12K8M4G2 ( Н12К8М4Г2 ) - High-alloy structurall steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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