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Characteristics for grade 07Kh21N9S2ML ( 07Х21Н9С2МЛ )

Grade :	07Kh21N9S2ML ( 07Х21Н9С2МЛ ) ( ВНЛ-4 )
Classification :	Casting alloy steel with specific properties
Equivalent grades:	Is absent

Chemical composition in % for grade 07Kh21N9S2ML ( 07Х21Н9С2МЛ )

C	Si	Mn	Ni	S	P	Cr	Mo	V
max 0.07	2 - 2.5	0.5 - 0.9	8 - 9	max 0.03	max 0.03	20.5 - 22.5	0.8 - 1.3	0.2 - 0.7

Mechanical properties under Т=20^oС for grade 07Kh21N9S2ML ( 07Х21Н9С2МЛ )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Casting			650	400	30	40	1000	Guenching 1110^oC, water, Ageing 8h,Cooling air,

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]

07Kh21N9S2ML ( 07Х21Н9С2МЛ ) - Casting alloy steel with specific properties: 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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