,
,
.
2
2.1 :
40.
8.8/2/ :
S=60 ;
50-59HRC;
26-30HRC;
=1000 ;
=800 .
, (830850 ), (500 ).
- S=60 ;
260-280HB;
=950 ;
=700 .
, (830850 ), (500 ).
8.55/2/
- .
- .
( 8.9/2/)
50-59HRC;
2440HRC.
: 38, 40, 40, 40.
0=1050 ; SH=1,2.
F0=12HRC+300; SF=1,75.