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Metals -> Copper-zinc alloy (latten, brass) -> Copper-zinc alloys pressure treated

Characteristics of the material LK80-3 ( LK80-3, ЛК80-3 ).

Material :	LK80-3 ( LK80-3, ЛК80-3 )
Classification :	Copper-zinc alloys pressure treated

Chemical composition in % of the material LK80-3 ( LK80-3, ЛК80-3 ) .

Fe	Si	Mn	P	Al	Cu	Pb	Zn	Sb	Bi	Sn	Impurity
max 0.6	2.5 - 4	max 0.5	max 0.02	max 0.1	79 - 81	max 0.1	13.5 - 18.5	max 0.05	max 0.003	max 0.2	all 1.5

Comment: Zn is a basis; the percentage of Zn is given approximately.

Mechanical properties under Т=20^oС of the material LK80-3 ( LK80-3, ЛК80-3 ) .

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
hard			580-650		3-5
soft			280-340		53-60

Brinell hardness of the material LK80-3 ( LK80-3, ЛК80-3 ) , hard	HB 10^-1= 170 - 190 MPa
Brinell hardness of the material LK80-3 ( LK80-3, ЛК80-3 ) , soft	HB 10^-1= 95 - 105 MPa

Physical properties of the material LK80-3 ( LK80-3, ЛК80-3 ) .

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	1.04		87.9	8200		200
100		17			401.9

Friction coefficient of the material LK80-3 ( LK80-3, ЛК80-3 ) .

Friction coefficient with oil :	0.084
Friction coefficient without oil :	0.22

Technological properties of the material LK80-3 ( LK80-3, ЛК80-3 ) .

Melting temperature, °C :	890
Annealing temperature, °C :	750 - 850

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]

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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