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Characteristics for grade 25GSL ( 25ГСЛ )

Grade :	25GSL ( 25ГСЛ )
Classification :	Casting alloy steel for general purposes
Equivalent grades:	Is absent

Chemical composition in % for grade 25GSL ( 25ГСЛ )

C	Si	Mn	Ni	S	P	Cr	Cu
0.22 - 0.28	0.6 - 0.8	1 - 1.3	max 0.3	max 0.3	max 0.3	max 0.3	max 0.3

Mechanical properties under Т=20^oС for grade 25GSL ( 25ГСЛ )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Casting	to 100		470	245	18	30	290	Normalizing 900 - 920^oC,Drawing 580 - 600^oC,

Brinell hardness for 25GSL ( 25ГСЛ ) (quenching) ,	HB 10^-1 = 207 MPa
Brinell hardness for 25GSL ( 25ГСЛ ) (normalize, tempering) ,	HB 10^-1 = 123 - 149 MPa

Technological properties for grade 25GSL ( 25ГСЛ )

Weldability:	without limitations.
Flakes :	not predisposed
Temper brittleness:	not predisposed

Technological properties of the material 25GSL ( 25ГСЛ ) .

Linear shrinkage :

2.2 - 2.3 %

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]

Weldability :
without limitations	- welding is done without heating and subsequent heat treeting
limited weldability	- welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability	- obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

25GSL ( 25ГСЛ ) - Casting alloy steel for general purposes: 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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