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FAQ
How do you store cemented carbide products?
For cemented carbide materials:
Storing at room temperature is fine. (Less than 300 in Celsius, as cobalt oxidizes at that temperature)
Humidity will leads to rusting, so we recommend storing the materials in an area with low humidity.
For complete metal molds:
Cemented Carbide corrosion can occur from grinding fluid, lubricating liquid, or other liquids.
If the grinding or lapping surface is not stored properly, corrosion may occur.
Store using a rust preventive oil or paper.
Q&A in the same category in this question
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What is the relationship between hardness and strength?
Hardness affects resistance to abrasion, and harder the material the more resistant it is to abrasion.
However, amount of abrasion is not only determined by hardness, but could be affected by adhesions caused by workpieces of certain materials.
Thickness also affects the life of material, and so the environment and manufacturing process must be taken into consideration when selecting cemented carbide grade.
There are many factors related to strength, such as transverse rupture strength, impact strength, fracture toughness value and others, therefore material selection must be made in consideration of these factors. -
What is the hardness of cemented carbides?
Generally, hardness can range from HRA88 to HRA92.
Higher hardness increases wearing resistance, but decreases impact resistance making it more prone to chipping. -
What is the difference between cemented carbide and cermet?
Both cemented carbide and cermet are composite materials made by mixing and sintering carbide or nitride powders with a metallic binder.
However, whereas cemented carbides are made of tungsten carbide (WC), the main component, bonded mainly with cobalt (Co) and nickel (Ni),
Cermet is made by bonding titanium compounds such as titanium carbide (TiC) and titanium carbide nitride (TiCN) with nickel (Ni) and cobalt (Co).
In other words, the difference between cemented carbide and cermet is the main component.
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