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C72900
C72900
C72900
C72900
C72900
C72900
C72900
C72900
C72900
C72900

C72900

  • Introduction
Introduction

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.

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