tender for set of air brake pipes with flanges & sockets (welded assy.) for bcna wagons consisting offollowing items as per rdso drawing & other technical requirements confirming to rdso specification. no.04-abr-2002 of april 2003, read with all amendment, latest amendment no.8 of september 2016, materialspecification of pipes as under, pipes 32 nb -seamless to is: 1239 (part i) heavy grade or astm a-106 gr.a.pipes 20 nb stainless steel to astm-a 312 schedule 40 s gr. tp 304 (erw) flanges & socket stainless steelto is: 6911-1992 x 04 gr.19 ni9 304 si for 20nb branch pipe and is 2062-2011 amend.1 of nov.2012, gr. e250a for 32nb feed pipe (as per annexure -a) .
