APPLICATION:

Steel susceptible to dental borers, reamers and screw taps.

CHEMICAL COMPOSITION:

CSiMnPSCrMoWVCoNi
1,10-1,250,15-0,300,20-0,40--0,50 - 0,80--0,07-0,12--

MECHANICAL PROPERTIES:

Hardness after Tempering ºC Symbol Value
Soft annealing HB 223
Quenching1) with 790 ºC in water HRC 62
Quenching with 790 ºC in water and tempering 180 HRC 60

INTERNATIONAL STEEL GRADES:

ISO EN Russia
21MnCr5 EN ISO 4957:1999
US Japan China