ZHENHAI is one of the world's leading manufacturers of silicon carbide(SiC) and aluminium oxide(Al2O3) under the trade name ROTA, and ZHENHAI is also an important manufacturer and expert of bonded abrasives, coated abrasives and specialty refractory products for the ceramics, metallurgy, foundry, chemical, petrochemical, power generation, waste processing and glass making industry.

ZHENHAI, estalished in 1996, has production and support facilities in Zibo, Shandong and Lianyungang, Jiangsu and Huangshi, Hubei. The abrasives & Refractory plants have a long history of delivering high grade materials to a wide variaty of markets, and have offen been in the forefront of technological development of new products and applications.

ZHENHAI now has a total installed capacity exceeding 10, 000 tons of silicon carbide, 12, 000 tonts of aluminium oxide and over 10, 000 tons of bonded and coated abrasives per year.

We supply silicon carbide and aluminium oxide throughout the world, and we cover every application.

ZHENHAI mainly specializes in silicon carbide (SiC), black and green

SiC chemical and physical properties

Silicon carbide is a synthetical material with outstanding hardness only superseded by diamond, CBN and B4C. The chemical inertness to most of the alkaline and acids in combination with its excellent heat and abrasion resistance make silicon carbide very suitable under extreme operation conditions.

Vickers Hardness 30 GPA Thermal conductivity 41W/m 0K

Thermal expansion 5× 10-6 /0K Specific gravity 3.21 g/CCM

We cover your every application

We supply you with abrasive grains, wiresawing grains, high performance powders, refractory, metallurgical grains, bonded abrasives, coated abrasives and superabrasives in forms of silicon carbide, aluminium oxide, diamond and cubic boron nitride.