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TECHNICAL SPECIFICATIONS
1. Rod Mill Facility
VL’s wire rod line consists of two SCR-AL-3650 wire rod Mills supplied by M/s South Wire. The SCR-AL-3650 System is designed to produce 9.5 mm diameter rod in level wound coils at a production rate of 8 metric tons per hour, with OTT coiler. The casting lines are installed with in-line degassing and filtration systems to ensure good internal metal quality and cleanliness. The mills are well equipped to manufacture products meeting world class quality standards. The chemical composition is ensured using state of art spectrometers. Experienced professionals test mechanical properties and conductivity using most modern equipments in a highly equipped laboratory. Each and every coil is visually inspected before clearing it for packing and despatch.
 
Chemical Characteristics
Constituent % Grade
Aluminium (min) 99.7
Si (max) 0.1
Fe (max) 0.2
 
Physical Properties
Rod Diameter (mm) 9.5 (± 0.5 )
Tensile Strength (Mpa) H-12 Temper 83-117 MPa
H-16 Temper 117 -152 MPa
Conductivity (%IACS) H-12 Temper 61.5 Min
H 16 - Temper 61.3 Min
Coil Weight (MT) 2.0- 3.4 MT
Coil ID (mm) 560
Coil OD (mm) maximum 1770
Height of Coil (mm) 850
 
Packing
The packing provided is sea-worthy. The coil is wrapped with layers of expanded polythene, HMHDPE. LDPE and HDPE woven fabric, one over another. The coil is then placed on a wooden pallet in eye-to-sky position; and strapped with PET Strap.
 
2. Billet Casting Facility
VL’s billet casting line comprises of state-of-the- art Wagstaff Air Slip casting unit with all associated in-line metal treatment facilities consisting of Dual rod grain refiner unit , Degassing unit and Metal filtration unit. Air slip casting technology together with the installed in-line treatment facilities ensures that products cast through the line meet all internal and surface quality requirements . The casting unit is fed by 2 electrically heated tilting type furnaces. In-house laboratory is equipped with Optical emission spectrometers to ensure that products meet the specified chemical composition. Cast billets are inspected and homogenized before they are cut to the required lengths and packed at the sawing facility.

VL’s casting facility is currently equipped to produce 7’’ , 8’’ and 9’’ diameter billets in 6xxxx series alloys.
 
Physical Characteristics
  Billet diameters 7" , 8" & 9" dia.  
  Tolerance on diameter:
  7" ± 1.0mm  
  8", 9" ± 1.5mm  
  Short cut lengths 600 - 1000 mm  
  Long cut lengths 3500 - 6000 mm  
  Tolerance on cut lengths:
  ≤ 1000 mm 5 mm  
  ≥ 3500 mm 8 mm  
  Squareness of cut face ≤ 1.0 mm /100mm  
 
Packing of Finished Bundles
Cut billets are bundled in standard configurations and stacked / placed on wooden batons and secured tightly with steel banding strips to facilitate easy and safe handling and storage of finished material.
 
3. Ingot Technical Specification
Elements Ingots
P1020A EC-1 EC-2 CG-1 CG-2 CG-G
%Fe 0.20 max 0.20 max 0.30 max 0.40 max 0.40 max 0.60 max
%Si 0.10 max 0.10 max 0.12 max 0.30 max 0.30 max 0.40 max
%Ti 0.03 max          
%V 0.03 max          
%Mn 0.03 max 0.01 max 0.01 max      
%Zn 0.03 max          
%Cu 0.03 max 0.04 max 0.04 max      
%Cr 0.03 max 0.01 max 0.01 max      
%Zr 0.03 max 0.01 max 0.01 max      
%B 0.03 max          
% Ga 0.04 max          
% Na 0.03 max          
% Ti + V   0.02 max 0.02 max      
Others total 0.10 max          
% Al 99.70 min 99.70 min 99.60 min 99.50 min 99.40 min 99.00 min
Note: P1020A specifications are as per LME requirements while EC-1 & EC-2 as per IS 4026:2007 standard
 
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