Pipe set complete for blc wagon drawing no. :- contr-9405-s/14, alt-14, item no-1 to 23 spec. no:- 04-abr-02 (rev. 01 of nov. 2017) material:- 1. for 32 mm bore pipes :- seamless to is: 1239 (part-1) heavy grade or astm a-106 gr. a 2. for 20 mm bore pipes :- stainless steel to astm-a 312 schedule 40 s gr. tp 304 (erw) (material as per rdso letter no. mw/apb dt. 02-08-2019 with annex. a).

Pipe 32 n.b. with flanges & sockets (welded assembly) for freight stock to rdso s drg. no. wd-80007-s-11, alt-12, item no. 2, 12 & 13. flanges and socket to rdso drg. no. wd-83062-s-07, alt.6, items 2 & 3. other technical requirements confirming to specification no. 04-abr-2019. material specification of pipes as under, pipes 32 nb:-seamless to is: 1239 (part-i):2004 with amendment 1 to 6, heavy grade or astm a-106 gr.a. socket & flange:-is: 2062-2011, amendment 1 of nov.2012, gr. e 250 a for