Zinc Alloys

Tensile Strength (N/mm²)

283

220-255

276-310

400-440

Elongation (%)

15

1-2

3-4

3-6

Brinell Hardness

83

85-90

105-125

110-120

Density (g/cm³)

6.7

6.3

6.03

5.0

Freezing range (°C approx.)

387-382

404-375

430-380

490-380

Thermal Con (cal/cm²/cm/°C @ 25°C)

0.27

(115)

0.21

(112.5)

Electrical Con (% copper std. @ 20°C)

26

27.7

25

28

Machinability

E

E

E

E

Corrosion Resistance

E

E

E

E

Electro Plating Suitability

E

G

G

F

Non Spark

Yes

Yes

Yes

No

Casting Characteristics - Sand

G

E

E

E

Casting Characteristics - Gravity

G

E

E

G

Casting Characteristics - High Pressure

E

F

F

F

Material Cost (£/kg - Dec 2011)

£1.84

£1.85

£1.93

£1.97