Decorative Copper Balls

Decorative Copper Balls

decorative copper balls Precision Copper ball is a kind of ball brass ball. Material could be made by copper, brass and bronze. Size from 1.0mm-50.8mm. Grade from G100--G500. Hardness is HRC25-30. Roundness is 5μ M, roughness is 0.15μ M. 1. Material: Copper, brass, bronze 2. Size: 1.0mm-50.8mm...

Product Details

decorative copper balls

Precision Copper ball is a kind of ball brass ball. Material could be made by copper, brass and bronze. Size from 1.0mm-50.8mm. Grade from G100--G500. Hardness is HRC25-30. Roundness is 5μ M, roughness is 0.15μ M.

1. Material: Copper, brass, bronze

2. Size: 1.0mm-50.8mm

3. Grade: G100--G500

4. Hardness: HRC25-30

5. Characteristics: With a low coefficient of friction, axial and radial movement.

6. Applications: Mainly used for valve, spray, instrument, pressure gauge. The meter, carburetor, electrical accessories,decorative etc.


Name,  symbol , number

copper, Cu, 29

Element category

transition metal

Group ,  period , block

11 ,  4 ,  d

Standard atomic weight

63.546(3)

Electron configuration

[ Ar ] 3d 10  4s 1
2, 8, 18, 1

Physical properties


Phase

solid

Density (near  r.t. )

8.96 g @ cm − 3

Liquid  density  at m.p.

8.02 g @ cm − 3

Melting point

1357.77  K ,   1084.62  ° C,   1984.32  ° F

Boiling point

2835 K,   2562  ° C,   4643  ° F

Heat of fusion

13.26  kJ @ mol − 1

Heat of vaporization

300.4 kJ @ mol − 1

Molar heat capacity

24.440 J @ mol − 1 @ K − 1


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