C75200 | UNS C75200 | Alpaca 18%

Chemical composition (Reference)

Cu

65 %

Ni

18 %

Zn

remainder

Mechanical properties (values in brackets are for information only)

Temper

Tensile strength R_m

Yield strength R_p0.2

Elongation A₅₀ / A_2”

%

MPa

ksi

MPa

ksi

Annealed

365-435

53-63

≥ 125

≥ 18

≥ 29

H01

400-495

58-72

≥ 180

≥ 26

≥ 14

H02

455-550

66-80

≥ 330

≥ 48

≥ 6

H03

510-595

74-86

≥ 475

≥ 69

≥ 4

H04

540-625

78-91

≥ 515

≥ 75

≥ 3

H06

595-675

86-98

≥ 585

≥ 85

≥ 3

H08

620-695

90-101

≥ 605

≥ 88

≥ 1

H10

≥ 660

≥ 96

≥ 655

≥ 95

≥ 1

Electrical conductivity

3.5

MS/m

6

%IACS

Thermal conductivity

33

W/(m.K)

19

Btu.ft/(ft2.h.°F)

Coefficient of electrical resistance*

0.2

10-3/K

0.1

10-3/°F

Coefficient of thermal expansion*

16.2

10-6/K

9.0

10-6/°F

Density

8.73

g/cm3

0.316

lb/in3

Modulus of elasticity

124

GPa

18,000

ksi

Specific heat

0.380

J/(g.K)

0.091

Btu/(lb.°F)

Poisson´s ratio

0.34

0.34

* Between 0 and 300 °C