Boat made of tungsten
Advantages of tungsten boat: unique heat resistance (melting point of tungsten is +3422°C), high resistance to thermal creeping, high module of elasticity, minimum coefficient of thermal expansion in comparison to other metals, resistance to aggressive environment, corrosion resistance, strength, long operational life, reliability.
Physical characteristics of W
|Atomic (molar) weight mole/h||183.84|
|Oxidation rate||6, 5, 4, 3, 2, 0|
|Melting heat kJ/mole||191|
|Heat conductivity K [V/m*K]||162.8|
|Evaporation heat kJ/mole||4482|
There are a few demerits:
— difficulty of tungsten obtaining in pure state;
— high volume weight (as gold has);
— brittleness at low temperature. Tungsten boat is not enough malleable at standard temperatures. Due to its unique properties, it can be processed (rolled, drawn, forged) only after heating up.
Tungsten boats can be manufactured by powder pressing out of high-quality tungsten. Then, there must be performed further mechanical processing. Refractory quality and hardness guarantee high operational reliability of products. The can be made of any shape and sizes. Tolerances and sizes must be agreed with customer. Tungsten boat price depends on composite configurations, gauges, and additional customer’s requests. Quality of products is specified by technical conditions.
Tungsten boats are used in vacuum-tube equipment.
|Width and height (mm)||Thickness and length (mm)||Tungsten||Si and Ni||Al||Ca||Mo||Fe|
Tungsten boats are much-requested in electrical engineering, electronics, ceramic manufacture. They are indispensable in vacuum high-temperature furnaces, furnaces with hydrogen atmosphere for recovery of metal oxides, annealing furnaces. It is also needed while fritting, processing of non-metals, glass melting, single-crystal growing etc.
Buy at a bargain price
A huge range of products is presented in stock of «Auremo» tungsten boat supplier. We offer high-quality products for affordable tungsten boat price. Our specialists are always ready to help with selecting required products, to give all necessary information about products, their prices, and delivery terms. Tungsten boat price depends on order quantity and additional conditions of supply. If you buy tungsten boat by wholesale, you will be given special discounts. By cooperating with «Auremo» tungsten boat supplier, you discover a really reliable partner.