Clay Graphite Crucible
Clay Graphite Crucible (also named Clay Bonded Graphite Crucible) is a kind of high-performance refractory melting vessel, made from high-purity flake graphite and refractory clay as main raw materials, through mixing, molding, high-temperature firing and special curing process.
It combines the advantages of graphite (excellent thermal conductivity, high temperature resistance) and clay (good strength, oxidation resistance, stable structure), making it the most widely used traditional crucible for non-ferrous metal smelting, casting and laboratory melting.
Customization Scope:
1. Size Customization: Customizable inner diameter, outer diameter, height and wall thickness, from small laboratory crucibles to large industrial ones.
2. Shape Customization: Conventional cylindrical/conical, or custom special-shaped (square, elliptical, with diversion port/ear) for special equipment.
3. Material Ratio Customization: Adjustable graphite-clay ratio (custom graphite content) based on melted metal, working temperature and service life.
4. Detail Customization: Custom inner wall smoothness, outer wall anti-slip treatment and engraving (logo, specifications) as needed.
Core Features & Advantages:
1. Excellent thermal conductivity, fast heating and high melting efficiency, greatly saving production time
2. Strong high temperature resistance, safe working temperature up to 1200℃–1650℃, suitable for various high-temperature melting scenarios
3. Good oxidation resistance, slow erosion rate and long service life, reducing replacement costs and downtime losses
4. High density, low porosity, excellent thermal shock resistance, not easy to crack or break during use
5. Good mechanical strength and impact resistance, suitable for industrial mass melting and laboratory small-scale tests
6. Stable chemical properties, no pollution to molten metals, ensuring product purity (especially suitable for precious metal melting)
7. Smooth inner wall, easy to clean and pour molten metal, reducing material waste
8. Complete specifications, customizable size, shape and material ratio according to customer needs, adapting to special equipment and working conditions
|
Item
|
Upper Diameter
|
Height
|
Bottom Diameter
|
Wall Thickness
|
Bottom Thickness
|
|
1#
|
70
|
80
|
50
|
9
|
12
|
|
2#
|
87
|
107
|
65
|
9
|
13
|
|
3#
|
105
|
120
|
72
|
10
|
13
|
|
3-1#
|
101
|
75
|
60
|
8
|
10
|
|
3-2#
|
98
|
101
|
60
|
8
|
10
|
|
5#
|
118
|
145
|
75
|
11
|
15
|
|
5^#
|
120
|
133
|
65
|
12.5
|
15
|
|
8#
|
127
|
168
|
85
|
13
|
17
|
|
10#
|
137
|
180
|
91
|
14
|
18
|
|
12#
|
150
|
195
|
102
|
14
|
19
|
|
16#
|
160
|
205
|
102
|
17
|
19
|
|
20#
|
178
|
225
|
120
|
18
|
22
|
|
25#
|
196
|
250
|
128
|
19
|
25
|
|
30#
|
215
|
260
|
146
|
19
|
25
|
|
40#
|
230
|
285
|
165
|
19
|
26
|
|
50#
|
257
|
314
|
179
|
21
|
29
|
|
60#
|
270
|
327
|
186
|
23
|
31
|
|
70#
|
280
|
360
|
190
|
25
|
33
|
|
80#
|
296
|
356
|
189
|
26
|
33
|
|
100#
|
321
|
379
|
213
|
29
|
36
|
|
120#
|
345
|
388
|
229
|
32
|
39
|
|
150#
|
362
|
440
|
251
|
32
|
40
|
|
200#
|
400
|
510
|
284
|
36
|
43
|
|
230#
|
420
|
460
|
250
|
25
|
40
|
|
250#
|
430
|
557
|
285
|
40
|
45
|
|
300#
|
455
|
600
|
290
|
40
|
52
|
|
350#
|
455
|
625
|
330
|
32.5
|
|
|
400#
|
526
|
661
|
318
|
40
|
53
|
|
500#
|
531
|
713
|
318
|
40
|
56
|
|
600#
|
580
|
610
|
380
|
45
|
55
|
|
750#
|
600
|
650
|
380
|
40
|
50
|
|
800#
|
610
|
700
|
400
|
50
|
J
|
|
1000#
|
620
|
800
|
400
|
55
|
65
|
|
Chemical Data
|
|
|
C:
|
≥41.46%
|
|
Others:
|
≤58.54%
|
|
Physical Data
|
|
|
Apparent Porosity:
|
≤32%
|
|
Apparent Density:
|
≥1.71g/cm3
|
|
Refractoriness:
|
≥1635°C
|
Main Applications:
1. Precious Metal Melting: Gold, silver, platinum, jewelry recycling and casting
2. Non-ferrous Metals: Copper, brass, aluminum, zinc, tin, lead smelting
3. Foundry & Casting: Small and medium casting workshops, metal processing
4. Industrial Furnace: Induction furnaces, oil furnaces, gas furnaces, torch melting
5. Laboratory & Research: Metal melting test, sample preparation, sintering experiment
Frequently Asked Questions
Need help? Be sure to visit our support forums for answers to your questions!
We are a real manufacturer, our factory is specialized in producing refractory materials for more than 30 years. We promise to provide the best price, the best pre-sale and after-sale service.
For each production process, RBT has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.
Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
Of course, we provide free samples.
Yes, of course, you are welcome to visit RBT company and our products.
There is no limit, we can provide the best suggestion and solution according to your situation.
We have been making refractory materials for more than 30 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.
