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Tungsten Crucible Tungsten pro

Tungsten Crucible Tungsten pro

Size:according drawing produce

Material:Tungsten 99.95% purity

Introduction:

Tungsten Crucible Features

l high temperature resistance

l low CTE

l High wear-resistance corrosion-resistance

l High pyroconductivity

l excellent hardenability

1.2 Tungsten Crucible Application

Ø Sapphire Crystal Growth

Ø Quartz Glass

Ø Coating

Ø Rear Earth Metallurgy

1.3 Tungsten Crucible Specification

1.3.1 Tungsten Crucible Dimension

Dia(mm)

Wall Thickness(mm)

Length(mm)

30-50

2-10

1300

50-100

3-15

100-150

3-15

150-200

5-20

200-300

8-20

300-400

8-30

400-450

8-30

1.3.2 Tungsten Crucible Chemical Composition

Grade

W % (≥)

Residual Elements

Total

Each

WAL1,WAL2

99.95

0.05

0.01

W1

99.95

0.05

0.01

W2

99.92

0.08

0.01

Note: K is not as impurities

1.3.3 Tungsten Crucible Material Property

Material

Pure Tungsten

Melting point:

3420°C±20°C

Boiling point:

5550°C

Linear thermal expansion Coefficient (20°C)

4.2×10-6 [m/(m·K)]

Thermal conductivity (20°C)

164 [W/(m·K)]

Specific heat (20°C)

0.13 [J/(g·K)]

Electrical conductivity (20°C)

18 · 106 [1/Ω·m)]

Specific electrical resistance (20°C)

0.050 [(Ω·mm2)/m]

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