High Purity Graphite Crucible for Metal Melting and Casting Jewelry Tools¹

Product Description What is graphite crucible? A graphite crucible is a container used for melting and casting non-ferrous, non-iron metals such as gold, silver, aluminum, and brass. Their thermal conductivity, high temperature resistance, small thermal expansion coefficient for high temperature applications, and anti strain properties to rapid heating and cooling make graphite crucibles an ideal metal casting solution. They are resistant to the effects of acids and alkaline solutions and have excellent chemical stability. Why does graphite matieral suitable for smelting and casting for jewelry industry and other industry? The crucible is made from high quality graphite which makes the graphite crucible to have a good thermal conductivity, resistant to acidity and alkalinity and a high temperature resistance, therefore, ensuring quality of products.Graphite crucibles do not contaminate molten metals because the graphite material is fused and does not loosen. The quality of a graphite crucible is determined by how it is manufactured, which influences its structure, density, porosity, and strength. As the graphite has an excellent heat performance, the time spent on melting is short, therefore saving energy.Their excellent heat performance helps in melting metals quickly for faster production cycles.  Since graphite crucibles are resistant to chemicals and corrosion, they are not affected by workshop conditions, characteristics that make them durable and long lasting.So graphite crucible is suitable for foundries, jewelry industry and other industries where metal melting and casting is necessary.Features: Technical Data of Graphite Material: Isostatic GraphitePropertyKBD-5KBD-6KBD-7KBD-7BKBD-8UnitApparent Density 1.851.901.821.821.90g/cm3Max Grain Size13-158-108-1013-158-10μmAsh value ≤500≤500≤500≤500≤500ppmSpecific Electrical Resistivity8-108-911-1311-1311-13μΩmFlexural Strength 4655515960MpaCompressive Strength 8595115121135MpaShore Hardness4853657070HSDThermal Expansion (room temperature to 600oC)4.754.85.85.85.8510-6/oCMolded Graphite PropertyKBG-4KBG-5Unit Apparent Density  ≥1.80≥1.85g/cm3Ash value  ≤500≤500ppmShore Hardness≥40≥45HSDSpecific Electrical Resistivity  ≤12≤12μΩmFlexural Strength  3841MpaCompressive Strength 8187MpaMax Grain Size 2525μmVibration GraphitePropertyTSKGSKUnitApparent Density≥1.70≥1.72g/cm3Max Grain Size ≤2≤0.8mmSpecific Electrical Resistivity8-10≤8.5μΩmFlexural Strength  ≥12.5≥15MpaCompressive Strength ≥28≥35MpaPorosity≤24≤20%Ash value ≤0.3≤0.3% Strict Quality Control Ensures High Quality Products  Safe Packing Question and Answer:Q:Are you a manufacturer or trading company?A:We are a manufacture for graphite material and graphite machined products.Q:How can you gurantee the quality?A:We have the most advanced equipments in our Lab and professional quality control team.We can gurantee each batch of the product with the stable quality.Q:Can you offer samples?A: Yes, we offer samples to testQ: Delivery time?A:Around 10 days. Q: Shipping potA: Tianjin or main port in ChinaQ:Payment termsA:T/T,LC at sight 

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