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

Characteristics of the material LO70-1 ( LO70-1, ЛО70-1 ).

Material :	LO70-1 ( LO70-1, ЛО70-1 )
Classification :	Copper-zinc alloys pressure treated

Chemical composition in % of the material LO70-1 ( LO70-1, ЛО70-1 ) .

Fe	P	Cu	Pb	Zn	Sb	Bi	Sn	Impurity
max 0.07	max 0.01	69 - 71	max 0.07	27.2 - 30	max 0.005	max 0.002	1 - 1.5	all 0.3

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

Mechanical properties under Т=20^oС of the material LO70-1 ( LO70-1, ЛО70-1 ) .

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
hard			680-750		3-5
soft			320-380		55-65

Brinell hardness of the material LO70-1 ( LO70-1, ЛО70-1 ) , hard	HB 10^-1= 145 - 155 MPa
Brinell hardness of the material LO70-1 ( LO70-1, ЛО70-1 ) , soft	HB 10^-1= 55 - 65 MPa

Physical properties of the material LO70-1 ( LO70-1, ЛО70-1 ) .

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	1.05		117	8600		72
100		19.7

Friction coefficient of the material LO70-1 ( LO70-1, ЛО70-1 ) .

Friction coefficient with oil :	0.0082
Friction coefficient without oil :	0.3

Technological properties of the material LO70-1 ( LO70-1, ЛО70-1 ) .

Melting temperature, °C :	935
Forging temperature,°C :	650 - 750
Annealing temperature, °C :	550 - 650

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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