Specifications

STA competitive quality silicon graphite crucible
1. High hardness
2. temperature up to 2400
3. High density
4. factory pric

 silicon graphite crucible

 

1.Long working lifetime: its working lifetime is increased 3-5 times over normal clay-crucible due to the compact body formed under    high pressure.

 

2.High thermal conductivity: high-density body and low apparent porosity greatly improve its heat conductivity.

 

3.New-style materials: new heat conduction material ensures faster heat conductivity and pollution-free product, reduces adherent slag.

 

4.Resistance to corrosion:better anti-corrosion than normal clay-crucible.

 

5.Resistance to oxidation: advanced process dramatically improves its oxidation resistance, which ensures persistent heat conductivity and long working lifetime.

 

6.High-strength: high-density body and logical structure make the product better compression property.

 

7.Eco-friendly: energy-efficient and pollution-free, not only ensure metal product purity, but also ensure sustainable development on environment.

 

 

Item	Silicon Carbide Crucible
Refractoriness °C	1680
Bulk Density  g/cm3	≥1.71
Apparent Porosity %	≤30
Cold Crushing Strength Mpa	8.55
Al2O3 %	6-20
SiC  %	20-40
SiO2  %	8-38
C  %	30-45

 

Our Silicon Carbide Crucible for melting metals and light alloys are manufactured with a mixture, on the basis of graphite, and silicon carbide from which the clay has been eliminated:

1. The thermal conductivity remains stable throughout their usage.

2. Moisture does not affect them at all and, therefore, they should not be preheated or annealed. They always go to the fire as they leave the packing, without any thermal precaution.

3. They resist the sharpest variations in the temperature.

4. Once located in the furnace, in no instance should they be kept on a slow fire. Always take them to the maximum temperature in the shortest possible time.

5. Their shape and sizes do not alter through usage.

6. Special manufacturing processes permit very short terms of delivery

 

 

Size No	Hight Outside mm	Top Diameter Outside mm	Bottom Diameter Outside mm
2	114	95	66
6	176	137	88
8	188	159	108
10	201	167	113
12	214	175	118
16	232	188	127
18	246	195	132
20	260	201	137
25	285	214	146
30	295	222	153
35	305	230	159
40	315	242	165
50	314	253	178
60	356	282	190
80	387	306	210
100	400	330	232
120	444	340	238
150	461	370	259
200	501	408	279
250	557	430	285
300	583	454	292
400	661	526	318
500	713	531	318
600	600	630	620

 

Features:

 

1. With good self-lubricating property.

2. Excellent conductive properties, Resistance coefficient is 8-12 ohm.

3. High Thermal stability, low coefficient of thermal expansion.

4. Good chemical stability, it is not dissolved in organic or inorganic solution; it is not reacted with any solution of salt and alkali.

5. High thermal resistance, The melting point of graphite is up to 3650°C, No deformation under high temperature.

6. High-purity, low impurities. 

7.  Small metal contamination. 

 

We can supply the products according to customer's drawings, samples and performance requirement.