High quality/High cost performance Black Sic Powder Silicon Carbide Abrasive

High Quality Sic Powder Black Silicon Carbide Abrasive

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
Usage	For bonded abrasives	For coated abrasives
Type	C	C-P

 

Physical Characteristics
Item	Basic mineral	Crystal system	Crystal color	Mohs  hardness	Density
Black silicon carbide	α- SiC	Hexagonal	Black	9.15	≥3.12g/cm3
Item	Micro hardness	Electrical  resistivity	Grinding ability(compared with  diamond as one)		Linear expansion  coefficient(when 900ºC α•10-6k-1)
Black silicon carbide	HV3100-3280	3×105-3×107Ω•cm	0.25		4.4

 

Chemical Composition
GB/T 2480-2008
Type	Grit	Chemical composition(%,by weight)
		SiC	F.C	Fe2O3
C	F4-F90	≥98.60	≤0.20	≤0.40
	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-P	P12-P100	≥98.60	≤0.20	≤0.40
	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.


Packaging & Shipping:

1. 25KG P.P BAG+ 1MT JUMBO BAG
2. 25KG P.P BAG+ 1MT PALLET
3. 25KG PAPER BAG+ 1MT PALLET
4. According to customers' requirements
5. Free samples or Sample orders usually shipped by Express like FedEx/TNT/UPS...



Our Advantages:
 
1.With many years of export experiences and well-deserved reputation, we provide clients with stable product quality and professional technical advice.
2.OEM, ODM services and our own brand (KUMTHAI) can be provided according to customers' requirements.
3. Management System Certification: ISO 9001, ISO 9000, ISO 14001, ISO 14000
4. Products with different grades and sizes can meet different market users' demand for different product quality and prices.
5. We guarantee that our products are good quality with competitive prices, and delivery in time.
6. Technical research and development strength: The company's employees have the relevant discipline background of abrasive grains and superhard materials, and know more about abrasives and grinding. They would like to provide better services for customers to meet their different needs. What's more, the company invites senior research experts from Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. and Henan University of Technology as product consultants, which can help to achieve in-depth product technical cooperation with customers and better matching demands, combined with China's industrial advantages.
 
Our Services:
 
1. Your inquiries will be replied in 24 working hours;
2. Free samples offered in certain quantity and delivered within 10 days;
3. PL, INV, MSDS and C.O. or other information you need can be provided at the top speed;
4. Any questions about products and technology will be answered sincerely and professionally.
5. Related products sourcing services.
 
FAQ:
 
Q1: Can you offer free samples?
A: Yes, free samples can be offered in certain quantity, but big samples and special products with charge.
 
Q2: Can I have a sample order for your products?
A: Yes, we welcome sample orders to test and check the quality.
 
Q3: What is your delivery time?
A: Sample order: Usually within 7 working days
Mass order: Within 25 days after 30% deposit received for conventional products. Negotiation for special products.
 
Q4: What is your payment terms?
A: T/T, D/P, L/C and so on.
 
Q5: Do you offer customized products according to customer's requirements?
A: Yes, OEM, ODM services and our own brand (KUMTHAI) are provided according to customers' requirements.
 
Q6: Are all your products on the website?
A: Not all the products on the websites. For some related products or the sizes that are not included on the website, please make an inquiry separately to our emails or any social media.



Green silicon carbide (GC) is produced by petroleum coke, quality silicon sand and appended with salt in an electric arc furnace at high temperatures. The hardness is higher than synthetic corundum, but lower than diamond. Mechanical strength is higher than corundum. The materials are used to grind hard and brittle metal, non-ferrous metals like copper, brass, aluminum and magnesium, and non-metallic materials such as gem, optical glass, ceramics, etc.
 
 

Grain Usages and Types
Usage	For bonded abrasives	For coated abrasives
Type	GC	GC-P

 
 

Physical Characteristics
Item	Basic mineral	Crystal system	Crystal color	Mohs  hardness	Density
Green silicon carbide	α- SiC	Hexagonal	Green	9.15	≥3.18g/cm3
Item	Micro hardness	Electrical  resistivity	Grinding ability(compared with  diamond as one)		Linear expansion  coefficient(when 900ºC α•10-6k-1)
Green silicon carbide	HV3280-3400	3×105-3×107Ω•cm	0.28		4.6

 
 

Chemical Composition
GB/T 2480-2008
Type	Grit	Chemical composition(%,by weight)
		SiC	F.C	Fe2O3
GC	F4-F90	≥99.10	≤0.20	≤0.20
	F100-F150	≥98.60	≤0.25	≤0.45
	F180-F220	≥98.00	≤0.25	≤0.50
	F230-F280	≥98.00	≤0.30	≤0.50
	F320-F500	≥97.50	≤0.30	≤0.50
	F600-F800	≥97.00	≤0.35	≤0.50
	F1000-F1200	≥96.50	≤0.40	≤0.50
GC-P	P12-P100	≥99.10	≤0.20	≤0.20
	P120-P150	≥98.60	≤0.25	≤0.45
	P180-P220	≥98.00	≤0.25	≤0.50
	P240-P360	≥98.00	≤0.30	≤0.50
	P400-P1000	≥97.50	≤0.30	≤0.50
	P1200-P1500	≥97.00	≤0.35	≤0.50
	P2000-P2500	≥96.50	≤0.40	≤0.50

Note: Special requirements on chemical composition and other terms can be satisfied through discussion.