Metallurgy group is actively involved in research and development in the areas of process modeling and failure analysis apart from a variety of other testing and consultancy services.


R&D Services :
  • Thermodynamic and kinetic modeling of metallurgical processes
  • Mechano chemical activation of minerals and materials
  • Failure analysis of industrial components
  • Consultancy projects in the areas of metallurgy and material science


Testing Service :

  • Testing hardness of materials on Vickers, Brinell and Rockwell scales
  • Certification of hardness test blocks using Rockwell and Vickers hardness tester
  • Micro and macro hardness testing of metals and alloys
  • Microscopic characterization of materials
  • Contact angle and surface tension measurements for solids.
  • Assistance to Dept. of Customs and Directorate of Revenue Intelligence in providing expert opinion on metallurgical import consignments at the ports of Chennai, Pondicherry and Tuticorin 


Calibration Services :

  • Verification of hardness testing machines


Major facilities :
  • Leica DMLM Metallurgical Microscope with MPS 30 PHOTO AUTOMAT
  • Leica Qwin Image Analyzer
  • Leica VMHTMOT Microhardness tester
  • Complete range of metallographic sample preparation equipment
  • Digital Rockwell test machine (INDENTEC 2002, UK)
  • Digital Vickers test machine (INDENTEC 2002, UK)
  • Epstein Tester for core loss measurement
  • Complete range of metallographic sample preparation equipment
  • Modular compact Rheometer-MCR 101 (Anton Paar, Germany)
  • High Temperature Chamber Furnace-HT 1800 (Linn High Therm GmbH, Germany)
  • High mass-high volume Thermogravimetric Analyser (Thermo Cahn, USA)
  • Leica MZ6 Stereomicroscope

TEST CHARGES FOR METALLURGICAL TESTING AND CALIBRATION 

  S.No.

Test Description

  Charges

Metallurgical Testing

1

Microstructure tests

  1. Average grain size measurement
  2.  Determination of case depth (3 to 1000 micron)
  3. Inclusion rating of carburized layer
  4. Depth of decarburized layer

      (3 to 1000 microns)

  1. Coating thickness (3 to 1000 microns)
  2. Determination of graphite flakes  (type and size)

Rs. 2000/test

 

2

Macrostructure test of steel bars, billets and blooms  

Rs. 1000/test

3

Hardness tests
  1. Micro-hardness (Vickers 5g to 1kg)
  2. Macro hardness

i)        Brinell (187.5, 750, 3000 kgf)

ii)       Vickers (up to 50 kgf)

iii)     Rockwell (A&C scale and superficial scales)

Rs. 1000/test

 


Above tests are done as per IS/ASTM standards

Time required for testing/calibration: 3 working days

Service tax at 12.36% extra on total charges

Mode of payment: Advance payment in full, DD in favour of NML Unit, Chennai



TILE TESTING :


The tiles testing section of NML-MC has the facilities for testing and evaluation of cement tiles, ceramic tiles, concrete pavement blocks, concrete cubes, granites, marbles etc. as per Indian Standards

Testing Services
  • Abrasion resistance
  • Water absorption
  • Flexural strength
  • Compressive strength
  • Flatness
  • Bulk density
  • Apparent porosity
  • Apparent specific gravity



Major Facilities
  • Automatic Compression Testing Machine (2000 KN)
  • Manual compression testing machine (1000 KN)
  • Automatic Flexural Testing Machine (100 KN)
  • Manual flexural testing machine (100 KN)
  • Abrasion Testing Machine
  • Digital sieve shaker (wet and dry)



Testing Charges

Tiles Testing

1.

    a.Water absorption
    b.Compressive strength (upto 2000 kN)
    c.Abrasion/wear resistance (0.01 to 25 mm)
    d.Flexural / Wet transverse strength (upto 100 kN)
    e. Flatness
    f. Bulk density
    g.Apparent porosity
    h.Apparent specific gravity



Rs.5000/sample

Rs. 15,000/ granite sample

Above tests are done as per IS standards, Service tax at 12.36% extra on total charges
No. of specimens/sample per test required: 6 nos.
Minimum specimen tile/block size for flexural strength/wet transverse strength: 250 mm x 250 mm x 10 mm.
Nominal testing time: 5 working days, excluding the curing period

Mode of payment: Advance payment in full, DD in favour of NML Unit, Chennai


BACK

For further details, please contact:

Director
Prof. S.P. Mehrotra
NATIONAL METALLURGICAL LABORATORY
(Council of Scientific & Industrial Research)
JAMESHEDPUR 831 007
Phone: (0657) 2271715, 2270092, 2271709-14 (PBX)
Fax: (0657) 2270527, 2271251, 2271159
Email: director@nmlindia.org,
Website: www.nmlindia.org

Dr. S. Srikanth
Scientist-In-Charge

NML Madras Centre, CSIR Madras Complex
Taramani, CHENNAI 600 113
Ph: 044 2254 2077, 2254 2529, 2254 2523, Fax: 044 2254 1027
Email: nmlmc@vsnl.com
Working hours: 9.00 am to 5.30 pm (Monday to  Friday, except
Govt. holidays)

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