supply of air brake pipeair brake pipe,air brake pipe with flanges & socket (welded assy.) for bcn wagon consisting of following it ems as per rdso drawings & other technical requirements confirming to rdso drawings no wd-84014-s/ 8 alt.- 06 & rdso specification no.04- abr-2002 of april-2003 read with all amendment, latest amendment no.8 of sept-2016 item no 1,3,5,7 to 10 & 13 to 20 material specification of pipe as under:- 1. pipes 32 nb seamless to is: 1239 (part-i) heavy grade or astm a-106 gr.a 2. pipes 20 nb stainless steel to astm-a 31 2 schedule 40 s gr. tp 304 (erw) 3. flanges & socket: (i) stainless steel to is: 6911 1992x 04 gr. 19 ni 9 304 si for branch pipe 20 nb (ii) is: 2062-2011 amend- i of nov 2012 gr. e250 a for brake pipe socket & fl anges to rdso drg. no. wd 83062-s-06 alt-3 & rdso drg. no. wd-83062-s-07, uvam item ref. : 3100389-- component of graduated release compressed air brake equipments for freight & coaching stock , sub ite m : 3100389007--sub item:pipes & joints for air brakes [ warranty period: 30 months after the date of de livery ] ] sr. section engineer wagon gujarat 15.00 set => limited