Indian Missile News And Discussion

[Arun_S]

Google for DMR-1700 steel and one will find good stuff.

In particular this one is very informative.



http://www.iitk.ac.in/infocell/announce/...kondia.pdf



Stronger than Maraging 250, and one third the cost.



[url="http://www.iitk.ac.in/infocell/announce/metallo/talk/malkondia.pdf"]DEVELOPMENT OF SPECIALITY LOW ALLOY STEELS[/url]

G. Malakondaiah

Defence Metallurgical Research Laboratory

Hyderabad – 500 058



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SUMMARY

• The new ultrahigh strength low-alloy steel DMR-1700,

developed at DMRL and productionised at Midhani,

possesses strength-toughness properties quite comparable to

the high-alloy 18Ni(250) maraging steel and thereby promises

to be an inexpensive substitute for [color="#8B0000"]maraging steel for booster

motor casings.[/color][/size]



[size="2"]

• Continuous Casting + Controlled Rolling technology has been

developed to make the low carbon steels cost effective.[/size]



[size="2"]

• Vanadium in the absence of Ti yields better precipitation

strengthening response in the normalized condition.

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