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Kumthai Abrasives Co., Ltd.

Black Silicon Carbide, Abrasive, Emery manufacturer / supplier in China, offering High Quality Black Silicon Carbide with Lowimpurity (C, C-P), Vertical Type of Boron Carbide Nozzle (SBCN-using with blast hose), More Efficient White Fused Alumina (WA / WA-B / WA-P / WA-R) and so on.

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Supplier Homepage Product Black Silicon Carbide (SIC) High Quality Black Silicon Carbide with Lowimpurity (C, C-P)

High Quality Black Silicon Carbide with Lowimpurity (C, C-P)

FOB Price: US $900-1,900 / Ton
Min. Order: 1 Ton
Min. Order FOB Price
1 Ton US $900-1,900/ Ton
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Port: Qingdao, China
Production Capacity: 100000tons/Month
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: F4-F1200, P12-P1500
  • Artificial Abrasive Type: Silicon Carbide Abrasive
  • Function: Surface Finish
  • Particle Size: Powder
  • Crystal Color: Black
  • Crystal System: Hexagonal
  • Density: More Than 3.12g/cm3
  • Usage: Polishing, Grind, Sand Blasting, Refractory
  • Transport Package: 25kg P. P Bag+1mt Jumbo Bag, 25kg Paper Bag+Pallet
  • Origin: Zhengzhou, China
  • Natural Abrasive Type: Natural Corundum
  • Application: Machinery
  • Source: Artificial Abrasives
  • Hardness: Conventional Abrasive
  • Basic Mineral: Alpha - Sic
  • Mohs Hardness: 9.15
  • Micro Hardness: Hv3100-3280.
  • Trademark: kumthai
  • Specification: F4-F1200, P12-P1500
  • HS Code: 2849200000
Product Description
Black silicon carbide (C) is produced by petroleum coke, quality silicon sand and appended with salt in an electric arc furnace at high temperatures. The hardness and brittleness are lower than that of green silicon carbide. The materials are used to grind cast iron, non-ferrous metals, rubber, leather, plastic, wood, mineral rocks, etc. It can also be used to manufacture high-class refractory products.  
 
 
Grain Usages and Types
UsageFor bonded abrasivesFor coated abrasives
TypeCC-P
 
 
Physical Characteristics
ItemBasic mineralCrystal systemCrystal colorMohs 
hardness
Density
Black silicon carbideα- SiCHexagonalBlack9.153.12g/cm3
ItemMicro hardnessElectrical 
resistivity
Grinding ability(compared with 
diamond as one)
Linear expansion 
coefficient(when 900ºC α•10-6k-1)
Black silicon carbideHV3100-32803×105-3×107Ω•cm0.254.4
 
 
Chemical Composition
GB/T 2480-2008
TypeGritChemical composition(%,by weight)
SiCF.CFe2O3
CF4-F9098.600.200.40
F100-F150≥98.10≤0.25≤0.50
F180-F220≥97.20≤0.30≤0.55
F230-F280≥97.20≤0.30≤0.55
F320-F500≥97.00≤0.35≤0.60
F600-F800≥96.50≤0.40≤0.60
F1000-F1200≥95.50≤0.50≤0.70
C-PP12-P10098.600.200.40
P120-P150≥98.10≤0.25≤0.50
P180-P220≥97.20≤0.30≤0.55
P240-P360≥97.20≤0.30≤0.55
P400-P1000≥97.00≤0.35≤0.60
P1200-P1500≥96.50≤0.40≤0.60
P2000-P2500≥95.50≤0.50≤0.70
Note: Special requirements on chemical composition and other terms can be satisfied through discussion.
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