| CERTIFICATE OF ANALYSIS |
| Boron Carbide |
Batch No. |
79570 |
|
| Grain Size |
325 mesh |
|
| Date: |
2021.11.02 |
| Report No. |
BT79570 |
| Chemical Component |
| Item |
Test Result (%) |
| Total Boron |
79.94 |
| Free B |
0.80 |
| B2O3 |
0.36 |
| Boron Compound |
79.12 |
| Total Carbon |
17.24 |
| Free C |
1.04 |
| Carbon Compound |
16.25 |
| Fe2O3 |
0.16 |
| B4C |
95.41 |
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 |
Hebei Baotong New Material Technology Co., Ltd. is a silicon carbide & boron carbide enterprise integrating production, processing and sales.
In order to further meet the needs of our customers for silicon carbide, Baotong has built a new 40000Kva silicon carbide smelting production line, which has been put into use, and the monthly output of silicon carbide blocks has reached 6000-7000 tons. The annual output of boron carbide particle size sand can reach 500 tons, refractory powder can reach 400 tons, fine powder 90 tons, and nuclear industrial grade boron carbide 100 tons.
The company adopts a fully automated computerized batching system to ensure accurate proportioning, adopts three-stage multiple grading to ensure excellent quality, and has a dedicated product testing center to ensure excellent and stable product quality. It has an after-sales service center to ensure perfect service support. The company was established in June 2012, and its production technology and equipment have reached the world's advanced level. Baotong Company is specialized in the production of four highs (high density, high crystallinity, high purity, high uniformity), and has its own deep processing workshop with four production lines. The company has built a silicon carbide manufacturing base and a silicon carbide R&D center.
The products produced by the company sell well in more than 40 countries and regions such as Europe, America, Japan, South Korea and South America, and have won unanimous praise from domestic and foreign customers.
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 terms of payment?
A4: T/T, L/C, PayPal, and can be negotiated.
Q5: How to solve the quality problems after sales?
A5: (1) Take photos of the problems and send to us.
(2) Take videos of the problems and send to us.
(3) Send back the defective products to us if necessary. After we confirmed the problems, will give you the answer within 7 days.
Q6: Can we make our logo on the products?
A6: Yes. We can do logo as your requirement as well as your design project. And we also accept custom
service.
If you want to know more details, please always feel free to contact us, we will reply WITHIN 12 HOURS. Thank you very much!
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