Free-cutting, high-strength white copper alloy bars MANIC Z-100
▼ Features
・White copper alloy having silver-white gloss similar to stainless steel or nickel silver
・Has cutting properties equivalent to free-cutting brass even for heavy cutting, which has been considered difficult with conventional stainless steel.
・Shows corrosion resistance superior to free-cutting brass in salt water spray tests.
・Stronger than free-cutting brass and as strong as stainless steel
▼ Chemical composition (representative example) (%)
Material
Cu
Ni
Mn
Pb
Others
Zn
MANIC Z-100
42
10.5
7.0
2.2
0.5
Residual
▼ Comparison of property values with various metals
Mechanical properties
Material
Properties
Tensile strength (N/mm²)
Elongation (%)
Hardness (HV)
MANIC Z-100
600 ~ 820
5 ~ 20
120~220
SUS303
520 min.
40 min.
200
SUS430
450 min.
22 min.
183
Free-cutting brass
335 min.
(20)
80 min.
Physical properties
Material
Properties
Modulus of elasticity in tension （kN/mm²）
Specific heat capacity （J/kg･K）
Specific gravity
Thermal conductivity （W/m･K）
Coefficient of thermal expansion （×10-6）
Electrical conductivity （%IACS）
MANIC Z-100
98
402
8.26
25
19
5.0
SUS303
193
500
7.93
16.3
17.3
2.0
SUS430
200
460
7.7
26.0
10.5
1.7
Free-cutting brass
96
377
8.5
117
20.5
26
▼ Cutting properties
When machinability rating of various materials are compared using the cutting resistance of free-cutting brass bars as 100, MANIC Z-100 is comparable to free-cutting brass bars.
