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CuNi18Zn20

Description

General

(Cu 62, Ni 18, Zn rest, Mn < 0.7 (wt.%))

Properties

Chemical properties

Minimum value Maximum value Unit Sources
%
%

Electrical properties

Minimum value Maximum value Unit Sources
kV/mm
%
V
0.29 0.29 Ohm.mm²/m Idemat 2003

Manufacturing Properties

Minimum value Maximum value Unit Sources

Mechanical properties

Minimum value Maximum value Unit Sources
MPa
MPa
MPa
8750 8750 kg/m³ Idemat 2003
15 40 % Idemat 2003
200 200 MPa Idemat 2003
J/cm
49000 49000 MPa Idemat 2003
430 550 MPa Idemat 2003
MPa
220 460 MPa Idemat 2003
133000 133000 MPa Idemat 2003

Optical properties

Minimum value Maximum value Unit Sources

Thermal properties

Minimum value Maximum value Unit Sources
°C
1060 1110 °C Idemat 2003
°C
420 420 J/kg.K Idemat 2003
25 25 W/m.K Idemat 2003
15 15 e-6/K Idemat 2003

Environment

106.9 mPt
2.36 Pt
63000 mELU
50.35 MJ/MJ
132 MJ
20.32 kg
83.29 kg
Considerable differences appear in practice. Therefore we used the energy requirements of winning in open mines and smelting in the main producing countries US and Chile as basis. The sulfidic ore has a copper content of 0, 6%. There is also a wide spread in the emission of SO2 during the refinery process. This reaches from 38 gram/kg Cu to 3500 gram/kg Cu, with an average of 1060gram / kg Cu. Often the reclaimed SO2 is used for the production of sulphuric acid. The world avererage scrap percentage is 20%.

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