Coking coal
Gzh grade (gas fat)
It has a high volatile yield and a relatively thick plastometric index.
The international equivalent of this brand is highly volatile semi-hard or semi-soft.
Moisture (ar), % | Ash (dry), % | Y, mm | Sulfur (dry), % | FSI | Fluidity, ddpm | Volatile matter (dry), % | CSR |
< 9.0 | < 9.0 | 20 | 0.5 - 0.8 | 7.5 - 8.5 | >20 000 | 34.0 - 36.5 | 40 - 50 |
Zh grade (fat)
It has a high degree of Roga index. It demonstrates high structural strength, which makes it particularly in demand in the production of coke. Unlike the GZh brand, it has a lower volatile yield and a thick plastometric index.
Equivalent of American coals such as HVA and HVB.
Moisture (ar), % | Ash (dry), % | Y, mm | Sulfur (dry), % | FSI | Fluidity, ddpm | Volatile matter (dry), % | CSR |
< 9.0 | < 9.0 | 28 | 0.5 - 0.8 | 8.0 - 9.0 | >30 000 | 30.5 - 37.0 | 50 - 60 |
KS grade (low-caking coking coal)
It is used in the coke industry as a lean element in the mix. It demonstrates a high degree of metamorphism and a low plastometric thickness. It can also be used for PCI.
Moisture (ar), % | Ash (dry), % | Y, mm | Sulfur (dry), % | FSI | Fluidity, ddpm | Volatile matter (dry), % | CSR |
< 9.0 | < 9.5 | 7 | < 0.50 | 2.0 - 3.0 | <10 | 14.5 - 16.5 | >40 |
PCI
Moisture (ar), % | Ash (dry), % | Y, mm | Sulfur (dry), % | FSI | Net Calorific Value, Kcal | Volatile matter (dry), % | HGI |
< 9.0 | < 10.0 | - | < 0.50 | <2 | >6500 | 14.5 - 16.5 | 80-90 |
OS grade (lean caking coal)
Premium products for higher coke CSR. Unlike fat grades, it has a lower volatile yield and a smaller plastometric thickness.
The international equivalent is the Australian low and medium volatile HCC.
Moisture (ar), % | Ash (dry), % | Y, mm | Sulfur (dry), % | FSI | Fluidity, ddpm | Volatile matter (dry), % | CSR |
< 9.0 | < 9.0 | 10 | < 0.50 | 5.5 - 6.5 | <150 | 19.0 - 21.0 | 68 - 76 |
K grade (coking coal)
It is a premium grade and is used to produce coke with high CSR. Unlike fat grades, it has a lower volatile yield and a smaller plastometric thickness.
The international equivalent is the Australian low and medium volatile HCC.
Moisture (ar), % | Ash (dry), % | Y, mm | Sulfur (dry), % | FSI | Fluidity, ddpm | Volatile matter (dry), % | CSR |
< 9.0 | < 9.5 | 13 | < 0.50 | 5.0-6.0 | <150 | 21.0 - 23.0 | 50 - 55 |