Copper-nickel Sheets

Copper-nickel alloy is made of copper, iron, nickel, zinc and trace elements, through processing by ingots, hot rolled, cold rolled, heat treatment, surface cleaning, cutting, finishing, packing and other processes. the product has a beautiful gloss, excellent hot and cold workability, ductility, corrosion resistance, fatigue resistance, high flexibility, good electrical and mechanical properties and shielding performance. It is widely used in the manufacture of wet and corrosive media in the work of structural components, flexible components, precision instruments, communications industry, liquid crystal oscillation element housings, medical equipment, construction, wind instruments and utensils, and daily necessities and so on.
Main Technical Parameters:
4-1 Chemical Composition
Material Alloy No. Chemical Composition (%，Max.)
Ni+Co Fe Zn Mn Pb Si Al Cu Impurity
Copper-nickel Alloy B19 18.0-20.0 0.5 0.3 0.5 0.005 0.15 ------ Rem 0.2
B25 24.0-26.0 0.5 0.3 0.5 0.005
B30 29.0-33.0 0.9 ------ 1.2 0.05
Zinc-copper-nickel Alloy BZn18-18 16.5-19.5 0.25 Rem 0.5 0.05 ------ ------- 63.5-66.5 -------
BZn18-26 16．5-19.5 0.25 Rem 0.5 0.05 ------ ------- 53.5-56.5 ------
BZn15-20 13.5-16.5 0.5 Rem 0.3 0.02 0.15 ------- 62.0-65.0 0.9
Iron-copper-nickel Alloy 9.0-11.0 1.0-1.5 0.3 0.5-1.0 0.02 0.15 ------ Rem 0.7
29.0-32.0 0.5-1.0 0.3 0.5-1.2 0.02 0.15 ------ Rem 0.7

4-2 Alloy Table
Material China ISO ASTM JIS
Copper-nickel Alloy B19 ----- C71000 MH19
B25 ------ C71300 MH25
B30 ------ C71600 MH30
Zinc-copper-nickel Alloy BZn18-18 CuNi18Zn18 C75200 C7520
BZn18-26 CuNi18Zn16 C77000 C7700
BZn15-20 CuNi15Zn20 C75400 C7541
Iron-copper-nickel Alloy BFe10-1-1 CuNi10Fe1Mn C70600 C7061
BFe30-1-1 CuNi30Mn1Fe C71630 C7163

4-3 Features
4-3-1 Specification Unit: mm
Material Alloy No. Temper Size（mm）
Thickness Width Length
Copper-nickel Alloy B19 B25 B30 R 7～75 ＞1500～2000 1500～4000
BFe10-1-1
BFe30-1-1 R 7～60 ≤2000 ≤4000
Y,M 3～10 ≤600 ≤1500
Zinc-copper-nickel Alloy BZn18-18 BZn18-26 BZn15-20 M
Y2
Y T 1.2.0～10 300～600 ≤1500

4-3-1 Tolerance Unit: mm
Thickness Width
Thickness Allow Deviation± Width Allow Deviation ±
<600 <1000 <2000 <600 <1000 <2000
1.2～2.0 0.050 0.080 0.100 0.3 0.5 2.5
2.0～3.2 0.060 0.100 0.120 0.5 0.5 2.5
3.2～5.0 0.080 0.120 0.15 0.5 0.8 5.0
5.0～8.0 0.110 0.160 0.200 0.5 0.8 5.0
8.0～12.0 0.150 0.200 0.250 0.5 0.8 5.0
12.0～20.0 0.400 0.650 1.100 5.0 7.5 10.0
20.0～30.0 0.550 0.850 1.300 5.0 7.5 10.0
30.0～40.0 0.700 1.100 1.600 5.0 7.5 10.0
40.0～60.0 0.900 1.300 2.200 5.0 7.5 10.0

4-3-2 Mechanical Performance
Temper Tensile Strength
N/mm2 Elongation
≥% Hardness
HV
M (O) ≥375 20 ------
Y2 (1/2H) 440-650 5 120-210
Y (H) 540-730 3 150-240
T (TH) ≥710 ------ 210-270
Temper Mark:M. Soft;Y4. 1/4 Hard;Y2. Hard;Y. Hard;T. Ultra hard.

Performance Features:
Note: Can be negotiable.