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Copper Balls
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Copper Balls

COPPER BALLSNearly pure copper balls, they show good mechanical and corrosion resistance properties, excellent thermal and el

COPPER BALLS


Nearly pure copper balls, they show good mechanical and corrosion resistance properties, excellent thermal and electric conductivity.

Small amounts of alloying elements as Cr, Zr, Ag, Cd, Mg, Sn allow to improve the mechanical properties.

 

Applications

Copper balls are used in galvanic applications and in the field of electronic industry.

 

Chemical Composition(%)

Cu

Other

99.900min

0.010max


International Standards

USA

GER

FRA

UK

RUS

CHN

ITA

JAP

C11000

2.0065

Cu-a 1

C101

M0

T2

CW004A

C1100


Physical / Mechanical / Thermal / Electric / Magnetic Properties

Property

Symbol

U.o.M.

Type

Notes

Values

Density

δ

g/cm3

Physical

Room temp.

8.91

Young's modulus

E

GPa

Mechanical

-

123

Specific heat

c

J/(kg·℃)

Thermal

Room temp.

385

Coefficient of linear thermal expansion

α

10-6/ºC

Thermal

(ΔT=0-100°C)

16.9

Thermal conductivity

λ

W/(m·K)

Thermal

Room temp.

393.0

Electric resistivity

ρ

Ω*m*10-9

Electric

-

17

Relative magnetic permeability

µ

-

Magnetic

Paramagnetic

1.010


Technical data

Property

Type

U.o.M.

Values

U.o.M.

Values

Hardness

Mechanical

HV

40-120

-

-

Ultimate compressive strength

Mechanical

MPa

220-320

psi*103

31-46

Service temperature

Thermal

ºC

-196/260

ºF

-320.8/500


Range

Diameters

U.o.M.

Diameters

U.o.M.

Precision Grade (ISO 3290)

2.381 - 41.275

mm

 3/32 - 1-5/8

inch

G100 -......- G200 


Corrosion Resistance

Good corrosion resistance in marine and industrial atmospheres, steam, alkali, neutral saline solutions.

They do not resist in contact with oxidizing acids, halogens, sulphides, ammonia, sea water.