Item

Value

Method

Carbon Content  %

≧99

GB/T 4102

Iodine Adsorption g/kg

13±2

GB/T 3780.1=ASTM D1510

Sulfur Content

≤0.001

45μm Sieve Residue, mg/kg

≤40

GB/T 3780.21=ISO 1437

Heating Loss %

≤0.4

GB/T 3780.8=ISO 1126

Ash  %                   

≤0.02

GB/T 3780.10=ISO 1125

Volatile Content %

≤0.3

GB/T 7047

Impurity

none

GB/T 3780.12

Characteristics

Pure natural gas made,high carbon and low sulfur components, lowest sieve residue.High-grade carburizing agent in metallurgical industry, such as producing Tungsten Carbide,

Titanium Carbide, Molybdenum Carbide, Niobium carbide,etc,also used as electric furnace insulction material.

Other Metal Carbides,such as Silicon Carbide,Boron Carbide,Zirconium Carbide,Zirconium Carbide etc. as main raw material of engineering ceramics.