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. It has excellent abrasion resistance and large neutron-absorbing cross section. 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 widely used in machinery, electronics, instrumentation, metallurgy, national defense, armed forces, nuclear, aviation industry, and also used as abrasives, classic refractory and specific welding materials, human protection materials and so on.
Boron carbide is widely applied as follows: boriding refractory, ion transfusion, film layer as well as grinding, polishing, lapping, drilling hard metal alloys, sapphire, watches, jewels, etc. Meanwhile, it is main material for the wear-resisting parts, precise meter-age element, sandblasting nozzle, precise spray nozzle, sealed washer, smelting boron steel, boron alloy, etc.
Boron carbide has showed many better properties of physics and chemistry in the hi-science/technology fields.
| 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 |
| Grain sizes |
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 |
Our company is committed to research, development, production and marketing of high-performance pressureless sintered silicon carbide ceramic products. It adopts a complete set of domestic advanced production lines, including dry pressure molding, normal pressure grouting, pressure grouting and extrusion molding. It has applied for six national patents, one utility model and five invention patents. It mainly produces pressureless sintered silicon carbide ceramic products, including pressureless sintered silicon carbide ceramic rollers, chemical heat exchange tubes, square beams, process furnace tubes, grinding media, thermocouple protection tubes, thermal radiation tubes, combustion nozzles, grinding barrels, multi curved breast plates, wear-resistant pipes, wear-resistant elbows, saggers, crucibles, plates, pump shells and other precision parts.
25 kgs Craft Paper + 1t Big Bag Pallet 1.25t Big Bag
Q1: Can we get the sample for reference?
A1: We are glad to send samples for your inspection, but you need to pay the sample(depends on product's value) and the express fees.
Q2: How long will be my goods ready for shipment ?
A2: Different specification products with different quantity ordered, the time of delivery is different. As usual, it will take 15-25 work days.
Q3: How can we guarantee quality?
A3: Always a pre-production sample before mass production and always a final inspection before shipment.
Q4: What is your payment method?
A4: T/T, L/C, PayPal, and can be negotiated.
If you want to know more details, please always feel free to contact us, we will reply soon. Thank you ^^
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