This standard specifies the technical requirements, test methods, inspection rules, transportation and quality certificate of coke for metallurgy.
This standard is applicable to the coke for smelting in blast furnace.
2 Normative References
The following documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1997 Coke - Sampling and Preparation of Samples
GB/T 2001 Coke - Determination of Proximate Analysis
GB/T 2005 Coke for Metallurgy - Determination of Coke Breeze Content and Size Consist
GB/T 2006 Coke for Metallurgy - Determination of Mechanical Strength
GB/T 2286 Determination of Total Sulfur Composition of Coke
GB/T 4000 Determination of Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR)
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgment of Limiting Values
3 Technical Requirements
3.1 The technical index of coke for metallurgy shall be in accordance with those specified in Table 1.
3.2 Through negotiation between the supplier and the purchaser, the crushing strength may be supplied according to M25 or M40. If not specified, it is supplied according to M40.
3.3 Moisture and dust coke content are not used as basis for quality assessment.
