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Metals -> Structural steel -> Alloy structurall steel

Characteristics of the material 33KHS ( 33HS, 33ХС ).

Material :	33KHS ( 33HS, 33ХС )
Classification :	Alloy structurall steel

Chemical composition in % of the material 33KHS ( 33HS, 33ХС ) .

C	Si	Mn	Ni	S	P	Cr	Cu
0.29 - 0.37	1 - 1.4	0.3 - 0.6	max 0.3	max 0.035	max 0.035	1.3 - 1.6	max 0.3

Temperature of critical points of the grade 33KHS ( 33HS, 33ХС ).

Ac₁ = 755 , Ac₃(Ac_m) = 830 , Ar₁ = 715

Mechanical properties under Т=20^oС of the material 33KHS ( 33HS, 33ХС ) .

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Bar	Ж 25		880	690	13	50	780	Guenching 920^oC, water, Drawing 630^oC, water,

Brinell hardness of the material 33KHS ( 33HS, 33ХС ) (annealing) ,

HB 10^-1= 241 MPa

Physical properties of the material 33KHS ( 33HS, 33ХС ) .

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	2.14		40	7640
100	2.06	12	38		466
200	1.96	12.8	37		508
300	1.86	13.4	37		529
400	1.76	13.7	35		563
500	1.68	14.3	33		592
600	1.57	14.7	31		622
700	1.37	15	29		634
800	1.27	12.4	27		664
T	E 10^{- 5}	a 10⁶	l	r	C	R 10⁹

Technological properties of the material 33KHS ( 33HS, 33ХС ) .

Weldability:	hard weldability.
Flakes :	not 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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