Laserfiche WebLink
Turbine Description & Material Specification <br />Runner Material 13/4 Chrome Steel to BSEN10293: 2005 or ASTM A743 <br />CA6NM <br />Single casting, part machined, with hand finished blades. The runner <br />blade profile will be finished using templates to meet the current IEC <br />standards. <br />Dynamic balancing specified to G6.3. <br />OR 13/4 Chrome Steel to BS 3100 425 C1; ASTM 473 541500; A743 <br />CA6N; EN 1.4313 or similar. <br />The runner will be machined from solid forgings and fabricated <br />construction: CNC machined from a fully heat treated forged disc <br />with hand polished buckets. <br />The runner skirt and crown will have adequate metal thickness for <br />machining to facilitate the fitting of loose wear rings should this ever <br />be necessary. <br />19H-90 <br />