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Shanghai Changyu Copper Co., Ltd.
Shanghai Changyu Copper Co., Ltd.
Contacts:Mr. Li
address:No. 5800 Shenjiang Road, Pudong New District, Shanghai, China
current location:HOME > PRODUCT > Copper Plating > Cupronickel Plate

Cupronickel Plate

Cupronickel Plate

Product description:It is mainly used in shells of shields and resonators in the electronics industry, metal components of rivets, screws, tableware, optical components of bows, camera parts, and prototypes, as well as spectacle frames, nameplates, hollow parts, etched bases, radio dials etc.
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Chemical Composition





Mechanical Properties

PropertiesAlloy Grade
Liquidus Temperature/℃1085.51121.51191.71228.7
Solidus Temperature/℃
Specific Heat Capacity(20℃)/J·(kg·K)-1

Coefficient of Linear Expansion(20℃)/℃-1
Thermal Conductivity(20℃)/W·(m·K)-1272.14130.038.536.8~37.3
Resistance Temperature Coefficient αρ/℃-10.002758(0℃)

Modulus of Elasticity/GPa120

Grade, Features and Application

B0.6Electrical copper-nickel alloy, its characteristic is that the temperature difference electromotive force is small. Maximum operating temperature is 100℃Long conductors for special thermocouples (platinum-platinum rhodium hot couples)
B5Structural white copper, its strength and corrosion resistance are higher than that of copper, and there is no tendency of corrosion cracking.Corrosion resistant parts of ships
B19/C71000Structural copper-nickel alloy, it has high corrosion resistance and good mechanical properties, good workability under hot and cold pressure, high strength and plasticity at high temperature and low temperature, and poor workability.Precision instrumentation parts, metal mesh and chemical corrosion resistant machinery parts, medical appliances and coins for working in neat, fresh and sea wate
B25As a structural copper-nickel alloy, it has high mechanical properties and corrosion resistance. It has good workability under hot and cold conditions. Because of its high nickel content, its mechanical properties and corrosion resistance are higher than those of B5 and B19.Corrosion resistant parts used in steam and seawater, metal pipes and condensation pipes working under high temperature and pressure, etc.


Copper plate is a highly stable, low maintenance roofing and curtain wall material that is environmental, safe to use, easy to process and highly resistant to corrosion. A stable protective layer allows the life of the copper plate to exceed 100 years. The economic performance of copper plate is one of the best metal roofing materials.

1) The yield strength of the copper plate is inversely proportional to the elongation. The hardness of the copper plate after bending processing is extremely high, but it can be reduced by heat treatment.

2) Among all the metal materials used in construction, copper has the best extension properties and has great advantages in architectural modeling.

3) The copper plate is not limited by the processing temperature, and is not brittle at low temperature, and can be hot-melt welded by oxygen blowing at a high melting point.

4) Fireproof, non-combustible material.

5) Even in extremely corrosive atmospheres, copper plates form a strong, non-toxic passivation protective layer, which is commonly called "verdigris." The chemical composition depends on the air conditions in the area, but the "verdigris" of various compositions has the same protective effect on the copper. This layer of passive film is very stable and can be repaired automatically by damage. It is difficult to distinguish with the naked eye.


The copper plate has excellent processing adaptability and strength, and is suitable for arcing, trapezoidal, cornering etc. in various processes and systems such as a flat lock system, a vertical edge occlusion system, a BEM system, a unit wall plate, and a rain drainage system.

 A variety of surface treatments to meet different architectural needs.

(1) A copper oxide sheet can form a uniform brown appearance.

(2) The patina board is used for renovation of old buildings or new construction with special requirements.

(3) The original copper plate has a gradual change in metallic luster, making the building as life-like.

(4) Tin-copper plate can achieve the effect of titanium-zinc plate.