Purchase Qty. Reference FOB Price
5-49 Pieces US$1.50
50-99 Pieces US$1.30
100-499 Pieces US$1.00
500-999 Pieces US$0.70
1,000+ Pieces US$0.58
Product Description
Product Description Boron carbide also known as Black Diamond, the formula is B4C, usually gray-black color. It is one of the three hardest known material (the other two are diamond, cubic boron nitride) Its Mohs hardness of 9.3. • Low density • High strength • High ...