China Forging Sintering Tungsten Melting Crucible Low Thermal Expansion Smooth for sale

Forging Sintering Tungsten Melting Crucible Low Thermal Expansion Smooth

Price Negotiable

Price: Negitionable

MOQ: Negotiate

Delivery Time: 30 days after receiving down payment

Product Description

Forging / Sintering Tungsten Crucible 0.5 - 100 Litres

Tungsten Crucible Feature

1. According to different processing methods, tungsten crucibles for vacuum coating can be mainly divided into sintered molding, press molding, spinning molding, turning forming, and welding forming.
2. Turning to form is mainly applied. We recommend the working temperature of the tungsten crucible for vacuum coating should be controlled below 2600℃.
3. We can produce a tungsten crucible for vacuum coating according to the customer's drawing.

Specification

delivery condition	specification		tolearance		thickness	roughness
	diameter	height	diameter	height
sintered	10-550	10-750	+/-5.0	+/-5.0	8-20	＜3.5
sintering finishing	10-450	10-550	+/-0.5	+/-1.0	7-18	＜2.5

Atomic number	74
CAS number	7440-33-7
Atomic mass	183.84 [g/mol]
Melting point	3420 °C
Boiling point	5555 °C
Density at 20 °C	19.25 [g/cm3]
Crystal structure	Body-centered cubic
Coefficient of linear thermal expansion at 20 °C	4.410-6[m/(mK)]
Thermal conductivity at 20 °C	164 [W/(mK)]
Specific heat at 20 °C	0.13 [J/(gK)]
Electrical conductivity at 20 °C	18.2106[S/m]
Specific electrical resistance at 20 °C	0.055 [(mm2)/m]

Tungsten Crucible Application

Used for sapphire single crystal growth furnace
Applied for quartz glass melting furnace;
Widely used in other following industries: Ceramics and metallurgical industries, machinery processing and light industries.