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Nickel white copper plate

Nickel white copper plateis a copper-based alloy with nickel as the main additive element. It is silver-white with metallic luster, hence the name Cupronickel. Copper and nickel can be infinitely dissolved in each other to form a continuous solid solution, that is, regardless of the ratio of each other, it is always an α-single-phase alloy. When nickel is melted into red copper and the content exceeds 16%, the color of the resulting alloy becomes as white as silver. The higher the nickel content, the whiter the color. The nickel content in Nickel white copper plateis generally 25%.
Products Inquiry

Product Details

Hard Condition: M (soft state), Y2 (1/2 hard), Y (hard);

Size: Thickness0.5mm~80mm×Width10mm~1200mm×Length2000mm~mm;

 

 

Grade comparison table 

China

ISO

USA

Japan

France

UK

DIN

B0.6

 

 

 

 

 

 

B5

 

 

 

 

 

 

B19

MH19

C71000

CN104

Cu-Ni20FelM

CuNi20Fe

C7100

B25

 

 

 

 

 

 

 

 

Chemical Composition Table

Alloy Grade

Ni+Co

Fe

Mn

Zn

Al

Si

Mg

Pb

S

C

P

Cu

Total impurities

B0.6

0.57-0.63

0.005

 

 

 

0.002

 

0.005

0.005

0.002

0.002

Balance

0.1

B5

4.4-5.0

0.20

 

 

 

 

 

0.01

0.01

0.03

0.01

Balance

0.5

B19

18.0-20.0

0.5

0.5

0.3

 

0.15

0.05

0.001

0.01

0.05

0.01

Balance

1.8

B25

24.0-26.0

0.5

0.5

0.3

 

0.15

0.05

0.001

0.01

0.05

0.01

Balance

1.8

 


Physical performance table

 

Characteristics

Alloy Grade

B0.6

B5

B19

B30

Liquid Point/℃

1085.5

1121.5

1191.7

1228.7

Solid Point/℃

 

1087.5

1131.5

1172.6

Density/kg·m-3

8960

8700

8900

8900

Specific heat capacity(20℃)/J·(kg·K)-1

 

 

378

387

Linear expansion coefficient(20℃)/℃-1

 

16.4x10-6

16x10-6

15.3x10-6

Thermal conductivity(20℃)/W·(m·K)-1

272.14

130.0

38.5

36.8~37.3

Resistivity(20℃)/μΩ·m

0.31

0.70

0.289

 

Temperature Coefficient of Resistance αρ/℃-1

0.002758(0℃)

 

0.00029(100℃)

 

0.003147(20℃)

 

0.000199(300℃)

 

 

 

0.000127(500℃)

 

Elastic Modulus/GPa

120

 

140

150

 

Grades, characteristics and applications

Alloy Grade

Main features

Application examples

B0.6

It is an electrical copper-nickel alloy, and its characteristic is that the thermoelectric force is small. Maximum working temperature is 100℃

Not long wire used to make special thermocouple (platinum-platinum rhodium hot spot couple)

B5

It is a structure of white copper, which has higher strength and corrosion resistance than copper, and has no tendency to corrosion

Used as corrosion-resistant parts of ships

B19

It is a structural copper-nickel alloy with high corrosion resistance and good mechanical properties. It has good press workability in hot and cold conditions, and can maintain high strength and plasticity at high and low temperatures, and its workability is not good.

It is used for precision instrument parts, metal mesh and chemical-resistant chemical machinery parts that work in neat, fresh water and sea water, as well as medical appliances and coins.

B25

It is a structural copper-nickel alloy with high mechanical properties and corrosion resistance. It has good press workability in hot and cold conditions. Because of its higher nickel content, its mechanical properties and corrosion resistance are higher than those of B5 and B19.

It is used for anti-corrosion parts that work in steam and sea water, as well as metal pipes and condenser pipes that work under high temperature and high pressure.

 

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