B4C Boron Carbide 200 Mesh 325Mesh Boron Carbide Powder

Product Overview

Description

HoB4C Boron Carbide 200 Mesh 325Mesh Boron Carbide Powder

 

Boron Carbide Powder (B₄C) a black crystal powder, is one of the hardest Man-Made materials, its hardness with Mohs hardness 9.36 and microscopic hardness 5400-6300kg/mm2 is only near upon diamond, its density is 2.52g/cm3 and melting point is 2450ºC, The boron carbide possesses properties of endurance hi/low temperature, no reaction with either acids or alkalis, high grinding efficiency, no magnetism. It is a good replacement of diamond. Boron carbide also possesses the special properties of light quality, neutron absorbing, semi-conductivity, etc., so it is used for armed forces and nuclear industry.
 

 

Physical Characteristics
Item	Crystal system	Crystal color	Density	Melting point	Mohs hardness	Micro hardness
Boron carbide	Hexagonal	Black	2.52g/cm3	2450ºC	9.36	5400-6300kg/mm2

Chemical Composition
Grit	Chemical composition(%,by weight)
	B4C	T.B	F.B	T.C	F.C	Fe2O3
F4-F90	≥95	≥76	≤0.3	18-21	≤1.5	≤0.3
F100-F220	≥96.5	≥76	≤0.3	18-21	≤1.6	≤0.3
F230-F320	≥96	77-81	≤0.4	18-21	≤1.5	≤0.2
F360-F500	≥95	76.5-80	≤0.4	18-21	≤1.8	≤0.2
F600-F800	≥94	76-80	≤0.45	18-21	≤2.0	≤0.25
F1000-F1200	≥93.5	76-79	≤0.5	18-21	≤2.5	≤0.3

 

Boron carbide application:

Control Nuclear Fission
Boron carbide can absorb large amounts of neutrons without forming any radioactive isotopes, which makes it an ideal neutron absorber for nuclear power plants, and neutron absorbers are mainly used to control the rate of nuclear fission. Boron Carbide is mainly made as a controlled rod in a field, but sometimes it is made into the powder to increase the surface area. At Chernobyl nuclear accident in 1986, Russia eventually stopped the chain reaction in the reactor after dropping nearly 2,000 tons of boron carbide and sand.

Grinding Polishing Lapping Materials
Boron carbide has been used as a coarse abrasive material long before. Due to its high melting point, it is not easy to cast into artifacts, but it can be processed into simple shapes by melting the powder at high temperatures. So it is often used for grinding, lapping, drilling and polishing hard materials such as hard alloy, gems and so on.

Ceramic Coating
Boron carbide can also be used as a ceramic coating for warships and helicopters, which is lightweight and has the ability to resist armor-piercing bullets penetrating the thermal coating to form a monolithic shield.

Boron Carbide Sandblasting Nozzles with Longer Working Life Better Wear-resistance
It can be used to manufacture gun nozzles in the arms industry. Boron carbide, extremely hard and wear-resistant, no reaction with acid-base, high/low temperature resistance, high pressure resistance, crystal system: hexagonal, density: 2.52g/cm3, Mohs hardness: 9.36, microhardness 5400-6300kg/mm2, bending strength ≥400Mpa, melting point: 2450ºC. Because it has the characteristics of wear resistance and high hardness, Boron Carbide Sandblasting Nozzle will gradually replace the known carbide/tungsten steel and silicon carbide, silicon nitride, alumina, zirconia and other materials sandblasting nozzle.