Precisely machined graphite moulds are widely used in smelting and shaping of precious metal like gold, silver, platinum. Precious metal is valuable and has the function of peer exchange with currency, so there are strict requirements to graphite moulds to ensure the weight tolerance of a same style precious metal meets the standard.
Type | Average Grain Size (µm) | Bulk Density (g/cc) | Specific Resistivity (μΩ·m) | Flexural Strength (Mpa) | Compressive Strength (Mpa) | Shore Hardness | C.T.E(100-600ºC) ×10-6/ºC | Ash (ppm) |
GT-CIP5F | 6 | ≥1.8 | ≤13.0 | ≥55.0 | ≥125.0 | ≥70.0 | ≤4.7 | ≤30 |
GT-CIP5ST | 3 | ≥1.86 | ≤13.0 | ≥68.0 | ≥135.0 | ≥85.0 | ≤6.8 | ≤30 |
GT-CIP1FR | 15 | ≥1.78 | ≤11.0 | ≥35.0 | ≥70.0 | ≥40.0 | ≤5.5 | ≤30 |
GT-CIP1FV | 15 | ≥1.85 | ≤15.0 | ≥40.0 | ≥80.0 | ≥46.0 | ≤4.8 | ≤30 |
GT-CIP1Q | 8 | ≥1.8 | ≤14.0 | ≥50.0 | ≥110.0 | ≥60.0 | ≤5.9 | ≤30 |
GT-CIPRQ | 8 | ≥1.85 | ≤14.0 | ≥58.0 | ≥130.0 | ≥68.0 | ≤5.9 | ≤30 |
GT-CIP1RB | 6 | ≥1.89 | ≤14.0 | ≥68.0 | ≥150.0 | ≥70.0 | ≤5.9 | ≤30 |
GT-CIP4SX | 20 | ≥1.80 | ≤13.0 | ≥45.0 | ≥90.0 | ≥60.0 | ≤4.7 | ≤30 |
GT-1RV | 10 | ≥1.67 | ≤15.0 | ≥36.0 | ≥78.0 | ≥58.0 | ≤5.8 | ≤30 |
GT-2C | 15 | ≥1.72 | ≤15.0 | ≥50.0 | ≥100.0 | ≥57.0 | ≤5.8 | ≤30 |
GT-3S | 12 | ≥1.78 | ≤17.0 | ≥52.0 | ≥102.0 | ≥60.0 | ≤6.0 | ≤30 |
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