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Coal >> Thermal Coal
Specifications (As per ISO or ASTM Standards) Unit Specifications
Total Moisture (ARB) % 13-15
Inherent Moisture (AD) % 6
Volatile Matter (AD) % 42-45
Total Sulphur (AD) % 0.8
Ash Content (AD) % 15
Gross Calorific Value (AD) Kcal / Kg 6500
HGI Number 42-45
Size mm 0-50
Coal >> Coking Coal
Specifications(As per ISO or ASTM Standards) Unit Specifications
Total Moisture (ARB) % 9.0
Inherent Moisture (AD) % 2.5
Volatile Matter (AD) % 38.0
Total Sulphur (AD) % 0.55
Ash Content (AD) % 9.0
Fixed Carbon (AD) % 50.5
Phosphorus (AD) % 0.018
Chlorine (AD) % 0.020
HGI Number 50
CSN 7.5
Low Ash Metallurgical Coke (B/F Grade)
SPECIFICATIONS :  
MOISTURE 5% MAX
PHOS 0.03% MAX
SUL 0.60% MAX
CSR + 65% (MOST IMPORTANT)
CRI 23% MAX
M40 85% MIN
M10 7% MAX
SIZE TOLERANCE I30-80MM (90% MIN)
Low Metallurgical Coke (Ferro – Alloys Grade)
SPECIFICATIONS :  
MOISTURE 5% MAX
PHOS 0.03% MAX
SUL 0.60% MAX
CSR + 65%
CRI 23% MAX
M40 85% MIN
M10 7% MAX
ASH 12.00% MAX
VM 1.50% MAX
SIZE 10-30MM (90% MIN)
Iron Ore
pecs 65.00/64.00 64.50/63.00 63.50/63 62.00/62.00
FE 65% basis 64.50% basis 63.50% basis 62.00% basis
64% min. 63% min. 63.% min. 62% min.
SiO2 3.00% max. 3.50% max. 3.00% max. 3.00% max.
Al2O3 2.50% max. 3.00% max. 3.00% max. 3.00% max.
P 0.05% max. 0.06% max. 0.07% max. 0.07% max.
S 0.02% max 0.02% max 0.02% max 0.05% max
Moisture 8.00% max. 8.00% max. 8.00% max. 8.00% max.
Size 0-10mm 0-10mm 0-10mm 0-10mm
Iron Ore Pellets For Blast Furnace And Sponge Iron
Chemical Analysis  
Fe 64.5% MIN
Moisture (H2O) 2.0% MAX
FeO 2.0% MAX
SiO2 6.4% MAX
Al2O3 0.4% MAX
CaO 0.3% MIN
CaO + MgO/SiO2 + Al2O3 0.13% MIN
Physical, Metallurgical Property  
Cold Compression Strength 235 Kg/Pellet MIN
Abrasion Index (Al) [-0.5 mm] 4.2% MAX
HBI
Chemical Analysis  
Total Fe 91.5 % min
Metallic Fe 85.5 % min
Metallization 93.0 % min
C 1.5 % min
P 0.09 % max
S 0.003 % max
SiO2 (Silica) 1.9 % max
MgO 0.5 % max
CaO 0.9 % max
Al2O3 (Alumina) 1.1 % max
Gangue (CaO+MgO+SiO2+Al2O3) 4.4 % max
Residual elements Traces
Physical analysis  
Size 108 x 48 x 32 mm
Weight 0.5 – 0.7 Kgs
Bulk Density 2.6 – 2.8 ton/M3
Apparent density >5.0 gms / cm3
Granulometric distribution >4 mm : 98%
Moisture  
Pig Iron
Specifications :    
Chemical Analysis    
I II
C 3.5%-4.5% 3.5%-4.5%
Mn 0.60% MAX 0.50% MAX
Si 0.75% – 1.5% 0.75% MAX
P 0.125% MAX 0.12% MAX
S 0.06% MAX 0.05% MAX
Physical    
Notch & Piece Weight (i) 1 Notch 35 / 40 KGS  
(ii) 2 Notches up to 45 KGS  
Ferro Alloys
High Carbon Ferro Manganese  
a) Grade: 75% b) Grade: 70 %
Specifications: Specifications:
Mn. 75% Min Mn. 75% Min
Si. 1.5% Max Si. 1.5% Max
C. 6-8% or 8%Max C. 8%Max
S. 0.04% Max S. 0.05% Max
P. 0.25% Max P. 0.25% Max
Size: 10-50mm, 10-60mm, 10-100mm Size: 10-50mm, 10-60mm, 10-100mm
Silicon Manganese
Specifications : Specifications : Specifications :
a) Grade: 60/14 b) Grade: 65/15 c) Grade: 65/16
Mn. 60% Min Mn. 65% Min Mn. 65% Min
Si. 14% Min Si. 15% Min Si. 16 Min
C. 2%Max C. 2% Max C. 2% Max
S. 0.03% Max S. 0.03% Max S. 0.03% Max
P. 0.030% Max P. 0.030% Max P. 0.030% Max
Size: 10-50mm, 10-60mm, 10-100mm Size: 10-50mm, 10-60mm, 10-100mm Size: 10-50mm, 10-60mm, 10-100mm
High Carbon Ferro Chrome
Specifications : Specifications : Specifications :
a ) b ) c )
Cr 60%Min Cr 60%Min Cr 60%Min
Si. 3.5% Max Si. 3% Max Si. 2.5%Max
C. 8% Max C. 8% Max C. 8.5Max
S. 0.05% Max S. 0.05% Max S. 0.05% Max
P. 0.035% Max P. 0.035% Max P. 0.035% Max
Size: 10-50mm, 10-60mm, 10-100mm Size: 10-50mm, 10-60mm, 10-100mm Size: 10-50mm, 10-60mm, 10-100mm
Graphite Electrode
Diameter mm 350 – 450 500 – 650 700– 800
Inch 14 – 18 20 – 26 28–32
Apparent Density g/cm³ 1.60 – 1.75 1.67 – 1.77 1.68-1.77
Specific Electrical Resistance Ωμm 5.0 – 7.5 4.5 – 5.5 4.0–5.5
Flexural Strength N/mm² 8 -13 10 – 13 10– 13
Thermal Conductivity W/(K-m) 220 – 270 250 – 280 250–300
Coefficient of Thermal Expansion μm/(K-m) 0.5 – 1.1 0.3 – 0.6 0.3–0.6
Current Carrying Capacity        
Electrode Size

(mm)

Current Carrying  Capacity   

 (K amps)

   
350 40    
400 40    
450 50    
500 60    
550 80    
600 100    
650 120    
700 180    
750 160    
800 140    
Refractories
Refractory supply for Steel.
A. Iron Making
B. Steel Making
C. Secondary Refining
D. Casting
E. Reheating furnace
F. Services for Refractory Area:-

– Major Relining jobs.

– Electromechanical maintenance.

– Refractory maintenance and application equipment & services.