hardening and chrome plating bar Ground and Chrome plated CHROME THICKNESS 20 TO 40 Micron SURFACE ROUGHNESS

SUPPLY CONDITIONGround and Chrome plated CHROME THICKNESS20 TO 40 MicronSURFACE ROUGHNESSRa ≤0.2 Micron and Rt≤2 MicronTOLERANCES ON DIAISO f7 on the diameter OVALITYHalf of the tolerance ISO f7STRAIGHTNESS ≤0.2mm/mSURFACE HARDNESS850-1150HV (Vickers 100g)COHESIONNo crack, breaking or detaching after thermic shock (warming up at 300 celsius degrees and cooling in water).POROSITY Test according to ISO1456/1458 and result valuation according to ISO 4540 rating 8-10CORROSION RESISTANCE Test in natural salt spray according to ASTM B 117-36 hoursResults evaluation according to ISO 4540 RATING 7-10.WELD ABILITY

hardening and chrome plating bar