black emery grains ,black silicon carbide powder,low discount
USD $650 - $900 /Ton
Min.Order:5 Tons
Ningxia Yongruida Carbon Co., Ltd.
black emery grains ,black silicon carbide
powder,low discount
Introduction:
The hardness and sharp particle of this material make it suitable for manufacturing of grinding
wheels, coated products, wire saws, superior refractory materials and deoxide as well as
for lapping, polishing and blasting.
Main applications:
solar wafer, semiconductor wafer and quartz chip wire sawing and lapping; bonded and coated abrasive tools; stone polishing; processing metal and non-ferrous metal with low tensile strength, such as gray pig iron, brass, aluminum, stone, leather and rubber.
Chemical & Physical Properties:
Crystal Form | Alpha SiC hexagonal system | ||||
Chemical nature | Slight acid | ||||
Reaction with acids | Very slight surface action with hydrofluoric acid | ||||
Reaction with Alkalis | Attacked at high temperature by alkalis and iron oxide | ||||
Oxidation-reduction effects | Starts to oxide slowly at 800oC. No reduction | ||||
True Density (g/cm3) | 3.20 | ||||
Hardness | Knoop(kg/cm2) | 2200-2500 | |||
Moh's | 9.5 | ||||
Color | Black | ||||
Color after firing | Black | ||||
Decomposition point | 2200oC | ||||
Max Usable temperature | 1540oC in air | ||||
Specific heat (cal/g.oC) | 0oC | 500oC | 1000oC | ||
0.14 | 0.28 | 0.13 | |||
Coefficient of thermal conductivity (cal/cm2.sec.oC) | 600oC | 800oC | 1000oC | ||
0.080 | 0.061 | 0.0510 | |||
Electrical resistivity ( Wcm) | 25oC | 100oC | 400oC | 800oC | 1400oC |
50 | 46.4 | 26.6 | 7.8 | 0.65 | |
Coefficient of liner expansion (x10-6) | 25oC-500oC | 25oC-1000oC | 25oC-1500oC | 25oC-2000oC | 25oC-2500oC |
4.63 | 5.12 | 5.48 | 5.77 | 5.94 |
Packaging Details: |
25kg/PP bag,or according your request. Brown Fused Alumina for Refractory, Sandblasting, Abrasives |
Delivery Detail: |
7 days after down payment |
Ningixia Yongruida Carbon Co.,Ltd. established in 2014, located in Ningxia, where is the biggest Production base of activated carbon, Specializes in the business of activated carbon and carbon additive.
Our company covers an area of 14,000 square meters and has around 150 staff members. Furthermore, all products are manufactured with advanced equipment and strict QC procedures in order to ensure high quality. To ensure big request of yourside.