1. Description
Copper-Nickel-Zinc alloy, also called nickel silver, German silver, new silver, nickel brass, albata, or electrum, is a copper alloy with nickel and often zinc. Nickel silver is named for its silvery appearance, but it contains no elemental silver unless plated.
Chemical Content(%)
Cu |
Fe |
Mn |
Ni |
Pb |
Zn |
54.0~58.0 |
< 0.25 |
< 0.5 |
16.5~19.5 |
< 0.1 |
Remainder |
Articles,Chemical composition
Articles |
Chemical composition |
GB |
UNS |
EN |
JIS |
Cu% |
Ni% |
Zn% |
BZn18-26 |
C77000 |
CuNi18Zn27 |
C7701 |
54-58 |
16.5-19.5 |
Rem |
Physical properties,fabrication properties
Physical properties |
fabrication properties |
density g/cm3 |
electrical conductivity %IACS |
thermal conductivity W/(m.K) |
modulus of elasticity GPa |
specific heat J/(g.K) |
cold-workability |
machinability |
electric plating property |
hot dip tin plating property |
weldability |
corrosion |
8.7 |
5 |
32 |
125 |
0.34 |
excellent |
suitable |
excellent |
excellent |
good |
excellent |
Mechanical properties
Mechanical properties |
State |
Hardness HV |
Tension test |
bending(in rolling direction)rest |
bending(transverse to rolling direction)test |
thickness mm |
tensile strength MPa |
yield strength MPa |
elongation% |
thickness mm |
angles |
ID |
thickness |
angles |
ID |
1/2H |
150-210 |
0.1-0.7 |
540-655 |
≥390 |
≥8 |
≤1.6 |
180° |
150% of thickness |
≤0.5 |
180° |
300% of thickness |
≥0.71 |
540-655 |
≥390 |
≥11 |
H |
180-240 |
0.1-0.7 |
630-735 |
≥390 ≥500 |
≥4 |
≤1.6 |
180° |
200% of thickness |
≤0.5 |
180° |
400% of thickness |
≥0.71 |
630-735 |
≥500 |
≥6 |
EH |
210-260 |
≥0.1 |
705-805 |
≥600 |
- |
≤1.6 |
90° |
300% of thickness |
≤0.5 |
90° |
600% of thickness |
SH |
230-270 |
≥0.1 |
765-865 |
≥680 |
- |
- |
- |
- |
- |
- |
- |
Typical application
Shields,Liquid crystal oscillators
Mechanical Properties
Condition |
1/2 Hard |
Hard |
Hardness |
150 ~ 210 HV |
180 ~ 240 HV |
Tensile Strength |
540 ~ 655 MPa |
630 ~ 735 MPa |
Elongation |
Min. 8% |
Min. 4% |
2. Specification
Foil:thickness:less than 0.05mm
width: less than 200mm
3. Packing detail
1). Coil (plastic spool) + compressed ply-wooden case + pallet
2). Coil (plastic spool) + carton + pallet
5. Products and services
4. Products and services
1). Pass: ISO9001 certification, and SO14001cetification;
2). Fine after-sale services;
3). Small order accepted;
4). Fast delivery;