Both blast furnace coke and foundry coke are made by baking a blend of selected coking coals in certain high temperature without contact with air until almost all of the volatile matter is driven off. The resulting product, coke, consists principally of carbon, as listed in above table. By-products are crude coal tar, light oils, and ammonia, etc.
Generally speaking, chemistry, size, and strength have been considered the most important properties for use in the blast furnace. Other important factors are coke reactivity and csr (coke strength after reactivity), which deal with the amount and size of pores and walls, porosity, and density. Carbon textures and microstructure are two main factors that affect the reactivity, stability, and the coke strength after reaction.
G-high graphite petroleum coke is widely used as carburant in the steel-making industry and precision casting industry, reduction pregnant agent in the casting industry, reducing agent in metallurgical industry and as one kind of refractories, etc.
G-high graphite petroleum coke could promote the nucleation of the graphite in liquid iron, increase the amount of spheroidal graphite, and improve the structure and the grade of grey iron.
Based on the microstructure observation, the features of g-high graphite petroleum coke are as the following:
First, it can greatly increase the proportion of ferrite content of the nodular cast iron without pearlite stabilizer; second, it can increase the percentage of v and vi shaped graphite when it is used; third, comparing with the improvement of the shape of spheroidal graphite, the great increase of spheroidal graphite amount can decrease the usage of expensive nucleating agent for later micro-adjustment and save the cost remarkably.
Specifications:
Gh-gpc-1
Fc 98% min, s 0.05% max, ash 1% max, moisture 0.5% max, vm 1% max, h 0.01% max , n 0.03% max
Gh-gpc-2
Fc 98.5% min, s 0.05% max, ash 0.7% max, moisture 0.5% max, vm 0.8% max, h 0.01% max , n 0.03% max
Gh-gpc-3
Fc 99% min, s 0.03% max, ash 0.5% max, moisture 0.5% max, vm 0.5% max, h 0.01% max , n 0.03% max
Size 1-3mm, 1-5mm, 0.5-6mm, 1-10mm, or at customers'option
By strictly practicing yb/t 192-2001, g-high carbon develops many kinds of carbon-additives according to customers'requirements, which contains high carbon, low sulphur, low nitrogen and few harmful impurities. These products are playing a very positive role in improving quality and lowering consumption in metallurgical industry, and they have been preferred by most of the major manufactures. Meanwhile, they are also widely used in chemical industry.
Since its founding, g-high carbon has made rapid progress due to increasingly improved production management and quality control system. By stable production and supply capacity, g-high carbon has been the origin for many trading companies and metallurgical factories when they look for qualified carbon additives.
Specifications:
Gh-cpc-1
Fc 98.5% min, s 0.3% max, ash 0.5% max, moisture 0.5% max, vm 0.5% max
Gh-cpc-2
Fc 98.5% min, s 0.5% max, ash 0.5% max, moisture 0.5% max, vm 0.5% max
Gh-cpc-3
Fc 98.5% min, s 0.8% max, ash 0.7% max, moisture 0.5% max, vm 0.8% max
Gh-cpc-4
Fc 98.5% min, s 1.2% max, ash 0.7% max, moisture 0.5% max, vm 0.8% max
Size 0-1mm, 1-3mm, 1-5mm, 3-8mm, 1-10mm, or at customers'option
Product: Gas coke
Mainly use in steel industry, spec as follow:
Fixed carbon 84 pct min
Ash 10 pct max
Volatile matter 6 pct max
Sulfur 1 pct max
Moisture 10 pct max
Phosphorous 0.03 pct max
Size: 5-20 mm 90 pct min
Capability: 20000mt per month.
Physical state: fesi75 series fesi pouring thickness, each brand shall not exceed 100 mm silicon ingots;
Fesi65 spindle shall not exceed 80 mm.
Silicon segregation of not more than 4%.
Large particle: 50-350mm size: 20 -, 200mm, small size: 10 ~ 100mm, minimum size: 10-50 small size, of which 90% above.
Packing: according to buyer's request, fesi can be used in the container, bulk, form of shipment.
Using bags or containers packaging, packaging outside should be clearly marked.
Ferrosilicon smelting: ferrosilicon is coke, steel scurf, quartz (or silica) as raw material and using made of electric smelting. Refining ferrosilicon, is from the silex silicon in containing sio2 out. Reduction Smelting ferrosilicon mostly used metallurgy as reductant.
We can supply calcined petroleum coke all the year round. If you are interested in it, please feel free contact me. Following are the specifications we can supply.
The specification of low sulfur cpc:
C (carbon) 98.5%min
S (sulfur) 0.5%max
H2o 0.3 %max
Ash 0.8 %max
Volatile 0.7%max
Size: 1-5mm, 90% min or follow buyerí»s demand.
Packing: in 1mt jumbo bag or follow buyerí»s demand.
It is usually used in steel making as carburant and the material of graphite electrodes.
> the specification of middle sulfur cpc:
C (carbon) 98%min
S (sulfur) 2-2.5%max
H2o 0.3%max
Ash 0.5%max
Volatile 0.5%max
Real density: (g/cm3) 2.06min
Size: follow buyerí»s demand.
Packing: in 1 mt jumbo bag or follow buyer's demand
It is usually used in aluminum industry as the material of anodes
