Alumina crucible is used for testing laboratory and a variety of industrial analysis. Alumina ceramic crucible and corundum crucible include: arc alumina crucible, square alumina crucible, rectangle alumina ceramic crucible, column ceramic crucible and a variety of shaped alumina ceramic crucible.

Characters of alumina crucible and corundum crucible:

1. High purity: Al2O399%, high chemical etching resistance;
2. Temperature tolerance, at 1600"ƒ for long term application, and at 1800"ƒ for short term application;
3. Resistant to sudden cold and hot, un-explosive;
4. High density of slip casting, high purity alumina crucible, specifications of 99% corundum crucibles: 5ml 10ml 15ml 20ml 25ml 30ml 50ml 100ml 150ml 200ml- 2500ml.

Characters of corundum crucible:

1. High purity: Al2O399%, high chemical etching resistance;
2. Temperature tolerance, at 1600"ƒ for long term application, and at 1800"ƒ for short term application
3. Resistant to sudden cold and hot, un-explosive
4. High density of slip casting

Main Specification:

Name	Square alumina crucible
Chemical ingredient	Al2O3	99
	R2O	0.2
	Fe2O3	0.1
	SiO2	0.2
Volume density (g/cm2)		3.80
Apparent porosity (%)		1
Bending strength (Mpa)		350
Compression strength (Mpa)		12000
Dielectric constant ∑（1MHz）		2
Max. service temperature （℃）		1800

Some Standard Sizes

Crucibles : Grade - 99.5% Al2O3

Cylindrical
OD mm	ID mm	Heigh tmm	Vol ml
20	16	30	05
30	26	40	15
35	30	50	30
40	36	60	60
50	44	75	120
65	55	100	240

Conical Tall Form
Upper OD mm	Lower ID mm	Height mm	Vol ml
25	15	30	10
30	18	38	15
33	18	40	20
38	21	47	30
42	25	54	45
50	24	65	80
62	32	75	100
73	35	90	150

Conical Short Form
UpperOD mm	LowerID mm	Height mm	Vol ml
30	174	24	10
41	18	37	25
48	20	41	40
54	24	50	60
60	26	50	80
66	30	56	100

Boats	Grade 99.5% Al2O3
Width (mm) Outside dimension	Height (mm) Outside dimension	Length (mm) Outside dimension
16	11	105
13	11	88
13	10	80