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Metals -> Structural steel -> Low alloy structural steel for welding construct

Characteristics of the material 20KHG2TS ( 20HG2TS, 20ХГ2Ц ).

Material :	20KHG2TS ( 20HG2TS, 20ХГ2Ц )
Classification :	Low alloy structural steel for welding construct

Chemical composition in % of the material 20KHG2TS ( 20HG2TS, 20ХГ2Ц ) .

C	Si	Mn	Ni	S	P	Cr	Cu	Zr
0.19 - 0.26	0.4 - 0.7	1.5 - 1.9	max 0.3	max 0.045	max 0.045	0.9 - 1.2	max 0.3	0.05 - 0.14

Temperature of critical points of the grade 20KHG2TS ( 20HG2TS, 20ХГ2Ц ).

Ac₁ = 770 , Ac₃(Ac_m) = 835 , Ar₃(Arc_m) = 740 , Mn = 345

Mechanical properties under Т=20^oС of the material 20KHG2TS ( 20HG2TS, 20ХГ2Ц ) .

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Rebar	Ж 10 - 18		900	600	6

Physical properties of the material 20KHG2TS ( 20HG2TS, 20ХГ2Ц ) .

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
100		12.3
200		12.3
300		12.5
400		13.1
500		13.5
600		13.9
700		14.2
T	E 10^{- 5}	a 10⁶	l	r	C	R 10⁹

Technological properties of the material 20KHG2TS ( 20HG2TS, 20ХГ2Ц ) .

Weldability:

without limitations.

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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