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Boron Carbide Powder

Boron carbide, also known as black diamond, has a molecular formula of B4C and is usually a gray black micro powder. It is one of the three hardest known materials, with a Mohs hardness of 9.3, commonly used in industries such as tank armor, bulletproof vests, and nuclear power.


Boron carbide can absorb a large number of neutrons without forming any radioactive isotopes, making it an ideal neutron absorber in nuclear power plants. It has the characteristics of low density, high strength, high temperature stability, and good chemical stability. Widely used in wear-resistant materials, ceramic reinforcement phases, especially in lightweight armor, reactor neutron absorbers, and other areas.


Shandong Huayi Tech Co., Ltd manufactures Boron Carbide powders by water classification at our factory in YANTAI, CHINA . All chemistry and sizing is controlled to meet exact customer requirements. Boron Carbide powder is produced using core patented technology, with a concentrated and uniform particle size distribution in the product.


All Boron Carbide manufactured at Shandong Huayi Tech Co., Ltd meets or exceeds ANSI and JIS or FEPA standards for product quality.

    Product Details

    Hard black glossy crystals. The hardness is lower than industrial diamond, but higher than silicon carbide. Compared to most pottery, it has lower fragility. Has a large thermal neutron capture cross-section. Strong anti chemical effect. Not susceptible to erosion by heated hydrogen fluoride and nitric acid. Soluble in molten alkali, insoluble in water and acid. Relative density (d204) is 2.508~2.512. Melting point 2350 ℃. Boiling point 3500 ℃.

    Product Technical Parameters

    Micro powder JIS R6001-1998 FEPA  Chemical Composition
    SIZE D3(um) D50(um) D94(um) SIZE D3 D50 D94 T.B T.C Fe B+C
    #240 103 57±3 40 76-81% 18.5-21% ≤0.2% ≥98.5%
    #280 87 48±3 33 F230 82 53±3 34
    #320 74 40±2.5 27 F240 70 44.5±2 28
    #360 66 35±2 23 F280 59 36.5±1.5 22
    #400 58 30±2 20 F320 49 29.2±1.5 16.5
    #500 50 25±2 16
    #600 43 20±1.5 13 F360 40 228.±1.5 12
    #700 37 17±1.3 11 F400 32 17.3±1 8
    #800 31 14±1 9
    #1000 27 11.5±1 7 F500 25 12.8±1 5
    #1200 23 9.5±0.8 5.5 F600 19 9.3±1 3
    #1500 20 8±0.6 4.5
    #2000 17 6.7±0.6 4 F800 14 6.5±1 2
    #2500 14 5.5±0.5 3
    #3000 11 4±0.5 2 F1000 10 4.5±0.8 1
    #4000 8 3±0.4 1.3 F1200 7 3±0.5 1(80%)
    #6000 5 2±0.4 0.8
    #8000 3.5 1.2±0.3 0.6
    UltraFine Powder Ultrafine Powder for Making Ceramic  Chemical Composition
    SIZE D50(um) T.B T.C Fe B+C
    HY3.5 1.8±0.3 76-81% 18-21% ≤0.2% ≥98.5%
    HY1.0 0.8±0.1
    HY0.5 0.5±0.1
    Macro Size T.B T.C Fe B+C
    Grit F4-F220 76-81% 18-21% ≤0.2% ≥98.5%

    Product Advantage

    Concentrated and uniform particle distribution without large particles.
    The product has low impurities and high purity.
    Can be customized according to needs.

    Company Introduction

    Shandong Huayi Tech New Materials Co., Ltd. is located in China and was established in 2018. The company is committed to the development and application of materials such as silicon carbide and boron carbide in multiple industries.

    The company's main products are silicon carbide powder and ceramics, boron carbide powder and ceramics, silicon carbide ceramic films, nuclear power boron carbide materials, etc. These products are widely used in the nuclear power industry, military industry, environmental protection, new energy, chemical industry and other fields.

    Product Application

    1. Sapphire chip (LED): Double -sided grinding and LED extension sheet back reduction and polishing;
    2. Nuclear Industry: The shielding plate and neutron absorption core block of the nuclear industry atomic can be reacted;
    3. Fire resistant material: used as antioxidants for low -carbon carbon bricks, pouring materials;
    4. Ceramic materials: Sandbuzzle, water shooting nozzle, mechanical sealing ring,ceramic grinding gear,Bulletproof vests and armor;
    5. High -grade wear -resistant welding strip; 
    6. High -precision polishing and grinding in the jewelry industry;
    7. Rigid alloy, gemstone and other grinding, grinding drilling and polishing;