High Purity and High Density Graphite Crucible

• Type: Graphite Parts
• Composition: C
• Carbon Content: High-Carbon
• Forming Way: Molded Graphite
• Bulk Density: More Than 1.75g/cm3
• Ash Content: Less Than 1000ppm
• Model NO.: BTG-3
• Shore Hardness: More Than 40
• Specific Resistance: Less Than 12μΩm
• Flexural Stength: More Than 25MPa
• Compressive Strength: More Than 45MPa
• Coefficient of Thermal Expansion: Less Than 4.5
• Transport Package: Wooden Case
• Trademark: Sincerity
• Origin: China
• Production Capacity: 500000PC/Y

Product Description

Feature:
High purity, high density, high temperature resistance, ablation resistance, abrasion resistance, oxidation resistance and thermal shock resistance. Good heat stability, high strength, good impact resistance, anti-saturated by metal solution, does not bind and pollute metal solution and long service life.
Because of the oxidation, after using several times, the graphite crucible will appear the air hole. We can special treatment to reduce the oxidation.
Application:
It includes all products for smelting and casting metal. The main products are high purity graphite crucible for melting gold, casting crucible, graphite mould, graphite groove. It is widely used for smelting alloyed tool steel and melting nonferrous metal and its alloy in metallurgy, casting mechanical, chemical industry, and the preferable technical and economic effects were obtained.

Item							Test Method
Forming method	Plasticity (S)	Isostatic pressure (D)		Plasticity (S)		Isostatic pressure (D)
Carbon content /%	≥ 38	≥ 45		≥ 38		≥ 45	GB/T 1655-2008
Bulk density /(g/cm3)	≥ 1.70	≥ 1.85		≥ 1.70		≥ 1.85	GB/T 2997-2000
Porosity /%	≤ 29	≤ 21		≤ 29		≤ 21	GB/T 2997-2000
Normal temperature compressive strength /MPa	≥ 20	≥ 25		≥ 20		≥ 25	GB/T 5072.2-2004
Fire resistance / ºC	≥ 1500	≥ 1500		≥ 1400		≥ 1400
Model	Upper port outside diameter ±2%		Thickness		Lower bottom outside diameter ±2%		Height ±2%
1#	67		8±1.0		35		65
1.5#	78		10±1.0		60		80
2#	88		10±1.0		62		100
3#	100		12±1.0		75		115
4#	115		12±1.0		85		115
5#	122		13±1.0		85		138
6#	125		14±1.0		85		155
41#	215		19~ 21.5		150		290
45#	250		19~ 21.5		180		295
70#	285		19~ 21.5		215		245
80#	310		20~ 22.5		210		370
90#	320		21~ 23.5		230		385
100#	314		21~ 23.5		220		408
200#	400		23~ 25.5		290		475
260#	416		24~ 26.5		250		585
300#	452		26~ 29		310		580
360#	462		28~ 31		342		674
390#	530		28~ 31		410		560
400#	515		29~ 32		340		600
420#	515		29~ 32		330		673
440#	620		29~ 32		340		500
450#	516		32~ 35		340		710
530#	580		31~ 34		330		635
560#	590		33~ 36		330		690
570#	620		33~ 36		335		570
580#	545		33~ 36		317		750
610#	607		34~ 38		350		630
680#	585		34~ 38		330		760
690#	600		34~ 38		330		805
700#	615		34~ 38		350		758
840#	700		35~ 39		470		675
950#	720		37~ 41		300		740
970#	720		34~ 38		470		730
1100#	715		35~ 39		478		846
1150#	855		42~ 46		340		677
1200#	780		36~ 40		450		752
1250#	725		36~ 40		470		905
1500#	784		37~ 41		450		890
1700#	778		40~ 44		442		1050
2500#	880		44~ 48		350