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Characteristics for grade 27KhGSNMDTL ( 27ХГСНМДТЛ )

Grade :	27KhGSNMDTL ( 27ХГСНМДТЛ )
Classification :	Casting alloy steel with specific properties
Equivalent grades:	Is absent

Chemical composition in % for grade 27KhGSNMDTL ( 27ХГСНМДТЛ )

C	Si	Mn	Ni	S	P	Cr	Mo	Ti	Cu	РЗМ
0.22 - 0.31	0.7 - 1.3	0.9 - 1.5	0.7 - 1.2	max 0.02	max 0.02	0.7 - 1.3	0.1 - 0.3	0.03 - 0.07	0.3 - 0.5	0.02 - 0.05

Mechanical properties under Т=20^oС for grade 27KhGSNMDTL ( 27ХГСНМДТЛ )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Casting, GOST 21357-87			800	650	12	20
Casting, GOST 21357-87			850	700	12	25
Casting, GOST 21357-87			1400	1150	8	12

Heat treatment of the material 27KhGSNMDTL ( 27ХГСНМДТЛ )

Normalizing 910 - 930 ° C, Tempering 590 - 610 ° C

Water hardening 910 - 930 ° C, Tempering 640 - 660 ° C

Hardening в воде 910 - 930 ° C, Tempering 200 - 220 ° C, ( Wear-resisting steel )

Types of delivery of grade 27KhGSNMDTL ( 27ХГСНМДТЛ )

B83 - Castings with special properties (cast iron and steel)

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]

27KhGSNMDTL ( 27ХГСНМДТЛ ) - 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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