The steel was used for fabricating the fuel and oxidizers tanks of the PSLV-XL which carried the Mangalyan to the red planet, 65 crore km from earth. The quality of the AISI 304 L grade l stainless steel manufactured at SAIL's Salem Steel Plant had to be manufactured to a high specification that could withstand the action of highly reactive fuel and oxidizers over a long period of time without developing any leakages.
This is the second such instance where Salem steel was used to developed in a high profile space mission. SAILBSE -1.26 % had earlier provided stainless steel for the PSLV that launched the Chandrayan in 2008 and other PSLVs.
Chairman, SAIL C S Verma: "We at SAIL feel extremely privileged to have contributed towards ISRO's success in putting Mangalyan in the Martian orbit in its maiden attempt. steel for projects of national importance."
Article Source: http://economictimes.indiatimes.com/industry/indl-goods/svs/steel/steel-supplied-by-sail-used-in-isros-mars-orbiter-mission/articleshow/43724068.cms
Publication Date: 28 September 2014