supply of the electrode to size dia 3.15 mm x 450 mm length.the electrode to size dia 3.15 mm x 450 mm length.,the electrode to size dia 3.15 mm x 450 mm length shall be low hydrogen t ype (basic coated) electrode with good welding characteristics and it shall be suitabl e for welding steel of is:2062/latest or equivalent. the electrode shall be approved by rdso under irs class `a4 of irsm 28/2002 to the code eb 532 x h2jx of is:814/91 (`x of the code refers to the welding current & voltage conditions as recommended by the elect rode manufacturer). the butt welded test specimen prepared using the subject electro de shall pass 180 degree transverse bend test (both root & face bends) on testing as p er is:3600-83 part-5 with mandrel dia (d) being 3t (t- thickness of the parent material). t he electrode shall be operatable on ac as well as dc in which dc +ve is mandatory. pac king condition shall be as per clause 5.1.1 of irs m-28/2002. the pre-heating temperature & duration shall be specified on the electrode packets (carton). the shelf life of the e lectrode shall be 12 months from the date of receipt in stores or 18 months from the date of manufacture, whichever is more. [ warranty period: 12 months after the date of deliv ery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited