ISO Certificated Abrasive Grade Black Silicon Carbide Powder 98% Fine Powder

Product Description

 

Product Description

 

Silicon Carbide Grit

Junda Silicon Carbide Grit is the hardest blasting media available. This high-quality product is manufactured to a blocky, angular grain shape. This media will break down continuously resulting in sharp, cutting edges. The hardness of Silicon Carbide Grit allows for shorter blast times relative to softer medias.

Silicon carbide has a very high hardness, with a Mohs hardness of 9.5, second only to the world's hardest diamond (10). It has excellent thermal conductivity, is a semiconductor, and can resist oxidation at high temperatures.
Silicon Carbide is hexagonal crystal, with stable chemical properties, high thermal conductivity, small thermal expansion coefficient, good wear resistance, Mohs hardness of 9.5. It has black and green two basic varieties. Black silicon carbide has good toughness, it is widely used in glass industry,  ceramic industry, stone industry, refractory industry, iron industry, non-ferrous industry and so on. Green silicon carbide has good self-sharpening, and is mostly used for processing hard alloy, titanium alloy and optical glass, and also for honing cylinder liner and accurate grinding HSS tool.

Features of Silicon Carbide Raw Material:
1.small thermal expansion
2.high thermal conductivity
3.not easy to have thermal stress
4.good thermal shock resistance
5.corrosion resistance
6.extreme cold or heat
7.high temperature creep resistant ability

Applications of black silicon carbide:
Grinding non-ferrous materials, rock, stone, leather, rubber, finishing tough and hard materials.
Bonded Abrasive tools, lapping and poishing.
Widely used as a metallurgical additive and refractory material.

Product Parameters

  

Silicon Carbide Grit Specifications
Mesh Size	Average Particle Size(the smaller the mesh number, the coarser the grit)
8Mesh	45% 8 mesh (2.3 mm) or larger
10Mesh	45% 10 mesh (2.0 mm) or larger
12Mesh	45% 12 mesh (1.7 mm) or larger
14Mesh	45% 14 mesh (1.4 mm) or larger
16Mesh	45% 16 mesh (1.2 mm) or larger
20Mesh	70% 20 mesh (0.85 mm) or larger
22Mesh	45% 20 mesh (0.85 mm) or larger
24Mesh	45% 25 mesh (0.7 mm) or larger
30Mesh	45% 30 mesh (0.56 mm) or larger
36Mesh	45% 35 mesh (0.48 mm) or larger
40Mesh	45% 40 mesh (0.42 mm) or larger
46Mesh	40% 45 mesh (0.35 mm) or larger
54Mesh	40% 50 mesh (0.33 mm) or larger
60Mesh	40% 60 mesh (0.25 mm) or larger
70Mesh	40% 70 mesh (0.21 mm) or larger
80Mesh	40% 80 mesh (0.17 mm) or larger
90Mesh	40% 100 mesh (0.15 mm) or larger
100Mesh	40% 120 mesh (0.12 mm) or larger
120Mesh	40% 140 mesh (0.10 mm) or larger
150Mesh	40% 200 mesh (0.08 mm) or larger
180Mesh	40% 230 mesh (0.06 mm) or larger
220Mesh	40% 270 mesh (0.046 mm) or larger
240Mesh	38% 325 mesh (0.037 mm) or larger
280Mesh	Median: 33.0-36.0 micron
320Mesh	Median: 26.3-29.2 micron
360Mesh	Median: 20.1-23.1 micron
400Mesh	Median: 15.5-17.5 micron
500Mesh	Median: 11.3-13.3 micron
600Mesh	Median: 8.0-10.0 micron
800Mesh	Median: 5.3-7.3 micron
1000Mesh	Median: 3.7-5.3 micron
1200Mesh	Median: 2.6-3.6 micronc

Product Feature

Due to its stable chemical properties, high thermal conductivity, low thermal expansion coefficient, and good wear resistance,silicon carbide has many other uses besides being used as abrasives. For example, silicon carbide powder is applied to the impeller or cylinder of a water turbine by a special process. The inner wall can improve its wear resistance and prolong its service life by 1 to 2 times; the high-grade refractory material made of it has heat shock resistance, small size, light weight, high strength and good energy-saving effect. Low-grade silicon carbide (containing about 85% of SiC) is an excellent deoxidizer.It can speed up the steelmaking speed, and facilitate the control of chemical composition and improve the quality of steel. In addition, silicon carbide is also widely used to make silicon carbide rods for electric heating elements.

Black silicon carbide is black, brittle and sharp, and has good thermal conductivity and electrical conductivity. It takes petroleum coke and high quality silicon as raw materials, adds salt as additive, and is fused through the electric resistance furnace at more than 2200˚C temperature. Compared with green silicon carbide, black silicon carbide is with slightly lower purity, hardness and brittleness, hexagonal crystalline of microscopic shape, 3300kg/mm3 of microhardness. Its hardness is higher than corundum but lower than diamond, cubic boron nitride and boron nitride among abrasives. Density is 3.2g/mm3, the natural bulk density of black silicon carbide abrasive is 1.2-1.6g /mm3, and the specific gravity is 3.20 - 3.25. Our silicon carbide has advantages of high hardness, low expansion coefficient, and good thermal conductivity etc.

 

Company Profile

Exhibition

 

Certifications

 

Buyer's praise

1. Are you a factory or trading company?
Jinan Junda Industrial Technology Co.,Ltd, established in 2005, is specialized in the development,manufacture, marketing and service-supplying of abrasives and sand blasting equipment, spare parts & protective tools. With its headquarter in Jinan city, Shandong province, Junda is becoming the leading enterprise in the field of metal surface finishing. 

2. Can you provide ODM or OEM service? 
We have complete lines for design and produce,we do many OEM and ODM service for our customers. 

3. Can you provide samples? 
We can provide paid samples. 

4. What is the lead time for regular orders?
It depends on the order quantity and the season you place the order. The lead time is about 5-15 days. 

5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,FCA; Accepted Payment Currency:USD,EUR,JPY; Accepted Payment Type: T/T,L/C,Cash; Language Spoken:English,Chinese

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