Trade Lead Description:
The graphite is of good quality, dry, soft, dark, powder with smooth feel. It should be free from grit, grease and visible impurities. The specific requirement is as follows: 1.Loss in mass on heating shall not exceed 3%
2.Petroleum either soluble shall not exceed 0.50% by mass. 3.Mater soluble matter shall not exceed 1.25% by mass. 4.Ash content of the material for Grade-I shall not be more than 5% by mass, and for Grade-II. above 5% but not more than 10% by mass. 5.Ash should not fuse below 11000 C. 6.The non-graphitic carbon content of the material shall not exceed 3% by mass. 7.The blackness of smear shall not be more than 30%
Posted from China - Guangdong on 23 November, 2009
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