Defence Metallurgical Research Laboratory

Defence Metallurgical Research Laboratory (DMRL) is a research laboratory of the Defence Research and Development Organisation (DRDO). Located in Defence Research Complex, Kanchanbagh, Hyderabad. It is responsible for the development and manufacture of complex metals and materials required for modern warfare and weapon systems.[1]

Defence Metallurgical Research Laboratory
AddressKanchanbagh,
Hyderabad - 500 058
LocationHyderabad, Telangana
Operating agency
DRDO

History

As with all the labs of DRDO, DMRL started its operations as a part of the Ordnance Factory Board at its Metal & Steel Factory in Calcutta in the year 1951 as the Technical Development Establishment (Metals), later to be upgraded as DMRL in 1956.[2] DMRL was shifted to Hyderabad in 1963. Since then, it has developed competence in the areas of powder metallurgy based fabrication and development of alloys, armor and rocket motor steel, aerospace light alloys, and magnetic materials. The formation of other entities such as the Mishra Dhatu Nigam Ltd., Heavy Alloy Penetrator Plant, Composites Production Centre, Non-Ferrous Technology Development Centre, and the Advanced Research Centre International have followed the establishment of DMRL. The DMRL is also involved in R&D efforts to develop futuristic materials to provide advanced technology options.[1]

Projects and products

DMRL has developed:[1]

  • DMR 1700 Ultra-high-strength steel with the toughness stronger than 250 maraging steel but cost is 60% lower; this steel has been used to build rocket motor casings for the Akash surface-to-air missiles
  • DMR 249A is a low carbon micro-alloyed grade of steel with stringent toughness requirement at sub-zero temperature.grade was having the specified gas contents of hydrogen <2 ppm in final product for the avoidance of detrimental phenomenon like “Hair Line Cracks”. So the Hydrogen content of liquid steel was to be less than 3 ppm and this demand vacuum treatment of the steel.[3]
  • Jackal steel is an advanced grade high strength low alloy steel, The technology of Jackal steel has been passed on to Steel Authority of India Limited (SAIL) and MIDHANI for its bulk production.
  • Heavy alloy pre-fragments for Prithvi missile warheads developed for use against aerial targets
  • OFE copper for the Nag anti-tank guided missile sheets
  • Special magnetic materials such as samarium-cobalt ring magnets and neodymium-iron-boron magnets in collaboration with the Vikram Sarabhai Space Centre for applications in the space program
  • Kanchan armour for use on the Arjun tank as well as other armoured vehicles like Sarath and Abhay.
  • Beta-titanium alloy for aerospace structural forgings.[4]

References
  1. "Defence Metallurgical Research Laboratory". Nuclear Threat Initiative. 1 July 2003. Retrieved 1 February 2019.
  2. http://ofbindia.gov.in/units/index.php?unit=msf&page=about&lang=en
  3. Mazumdar, Rakhi (16 October 2017). "SAIL supplied defence grade steel plates for anti-submarine warship INS Kiltan". The Economic Times. ISSN 0013-0389. Retrieved 1 August 2023.
  4. "DRDO develops high strength titanium alloy for aerospace forgings". The Hindu. 20 July 2021. ISSN 0971-751X. Retrieved 20 July 2021.


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