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Metals -> Structural steel -> Alloy structurall steel

Characteristics of the material 35G2 ( 35G2, 35Г2 ).

Material :	35G2 ( 35G2, 35Г2 )
Substitute:	40Х
Classification :	Alloy structurall steel

Chemical composition in % of the material 35G2 ( 35G2, 35Г2 ) .

C	Si	Mn	Ni	S	P	Cr	Cu
0.31 - 0.39	0.17 - 0.37	1.4 - 1.8	max 0.3	max 0.035	max 0.035	max 0.3	max 0.3

Temperature of critical points of the grade 35G2 ( 35G2, 35Г2 ).

Ac₁ = 718 , Ac₃(Ac_m) = 804 , Ar₃(Arc_m) = 727 , Ar₁ = 677 , Mn = 340

Mechanical properties under Т=20^oС of the material 35G2 ( 35G2, 35Г2 ) .

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Forging	100 - 300		530	275	17	38	340	Normalizing
Bar	Ж 25		620	365	13	40		Guenching 870^oC, oil, Drawing 650^oC, air,

Brinell hardness of the material 35G2 ( 35G2, 35Г2 ) (annealing) ,	HB 10^-1= 207 MPa
Brinell hardness of the material 35G2 ( 35G2, 35Г2 ) (hot-rolled, annealing) ,	HB 10^-1= 187 MPa

Physical properties of the material 35G2 ( 35G2, 35Г2 ) .

T	E 10^{- 5}	a 10⁶	l	r	C	R 10⁹
Grade	MPa	1/Grade	Watt/(m·Grade)	kg/m³	J/(kg·Grade)	Ohm·m
20	2.04			7790
100			40
200			38
300			37
400			36
500			35
T	E 10^{- 5}	a 10⁶	l	r	C	R 10⁹

Technological properties of the material 35G2 ( 35G2, 35Г2 ) .

Flakes :	predisposed
Temper brittleness:	predisposed

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

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
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