Metals -> Copper-zinc alloy (latten, brass) -> Cast cooper-zinc alloys Characteristics of the material LTS40S ( LTS40S, ËÖ40Ñ ).
Material : LTS40S ( LTS40S, ËÖ40Ñ ) Classification : Cast cooper-zinc alloys
Chemical composition in % of the material LTS40S ( LTS40S, ËÖ40Ñ ) . Fe Si Mn Ni Al Cu Pb Zn Sb Sn Impurity max 0.8 max 0.3 max 0.5 max 1 max 0.5 57 - 61 0.8 - 2 35 - 42.2 max 0.05 max 0.5 all 2
Comment: Zn is a basis; the percentage of Zn is given approximately. Mechanical properties under Ò=20o Ñ of the material LTS40S ( LTS40S, ËÖ40Ñ ) .
Assortment Dimension Direct. s â s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - sand (mould) casting 215 12 cast in a metal mould 215 20 centrifugal casting 215 20
Brinell hardness of the material LTS40S ( LTS40S, ËÖ40Ñ ) , sand (mould) casting HB 10 -1 = 70 MPa Brinell hardness of the material LTS40S ( LTS40S, ËÖ40Ñ ) , cast in a metal mould HB 10 -1 = 80 MPa Brinell hardness of the material LTS40S ( LTS40S, ËÖ40Ñ ) , centrifugal casting HB 10 -1 = 80 MPa
Physical properties of the material LTS40S ( LTS40S, ËÖ40Ñ ) . T E 10- 5 a 10 6 l r C R 10 9 Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m 20 20.1 108.8 8500 68
Friction coefficient of the material LTS40S ( LTS40S, ËÖ40Ñ ) . Friction coefficient with oil
: 0.013 Friction coefficient without oil
: 0.17
Technological properties of the material LTS40S ( LTS40S, ËÖ40Ñ ) . Melting temperature, °C : 885
Specification :
Mechanical properties : s â - Tensile strength , [MPa] s T - Yield stress, [MPa] d 5 - 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 20o - T ) , [1/Grade] l - Termal (heat) condition coefficient , [Watt/(m·Grade)] r - Density , [kg/m3 ] C - Specific heat
( range 20o - T ), [J/(kg·Grade)] R - Electrical resistance , [Ohm·m]
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