Cu Ni Sn is a modulated decomposition strengthened copper alloy, which has high strength, wear resistance, and excellent stress relaxation resistance. At the same time, it also has good conductivity. The alloy is widely used in the manufacturing of conductive and wear-resistant components such as bearings, bushings, bearing sleeves, high-power electronic components, and precision plug-in terminals.
Grade
Chemical composition(%)≤
Thickness
(mm)
ASTM
Cu
Sn
Ni
Mn
Zn
Fe
Other
0.05-5.0
C72900
Balance
7.5-8.5
14.5-15.5
0.30
0.50
0.50
≤1.0
Physical properties
Density
(g/cm³)
Modulus of elasticity
(GPa)
Thermal expansion coefficient
(×10-6/K)
Electrical conductivity
(%IACS)
Thermal conductivity
W(m·K)
8.89
130
17.1
12-14
-
Mechanical properties
Bend properties
Temper
Hardness
HV
Tension test
90°R/T(Thick<0.5mm)
Tensile Strength
Rm/MPa
Yield Strength
MPa
Elongation
A50
%
Good way
Bad way
1/4H
135-220
515-690
280-520
18
0
0
1/4HT
270-350
895-1105
790-1000
4
-
-
1/2H
190-240
585-760
515-690
16
0
0.5
1/2HT
315-390
1000-1205
900-1140
3
-
-
H
220-310
690-895
655-860
2
0.5
3.0
HT
360-410
1140-1345
1000-1275
2
-
-
FAQ
Q: How long is your delivery time?
A: Generally it is within 15 days if the goods are in stock. or it is less than 30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ?
A: Yes, we could offer the sample
Q: What ls your terms of payment
A.30% T/T in advance ,balance before shipment. And the price depends on the material and the quantity
If you have another question, please feel free to contact us.