Tabela przybliżonego porównania twardości Rockwella z twardośćiami Vickersa i Brinella dla miedzi i stopów aluminium walcowanych na zimno
Twa |
r d o ś 6 |
s |
T w a |
d o ś ć | |||
Rock wella |
Vic- kersa |
Brinella |
Rock wella |
IjRook- jjwella |
Vic- kersa |
Brinella |
Rock wella |
HRB |
HV |
HB10/500 |
HRF |
!j HRB |
HV |
HB10/500 |
HRF |
70 |
127,5 |
118,0 |
98,2 |
|| 34 |
88,0 |
82,0 |
81,8 |
68 |
124,0 |
115,0 |
97,2 |
j; 32 |
86,5 |
81,0 |
80,9 |
66 |
121,5 |
112,0 |
96,2 |
I! 30 |
85,5 |
79,5 |
80,0 |
64 |
118,0 |
109,0 |
95,3 |
i28 |
84,0 |
78,5 |
79,1 |
62 |
115,5 |
106,5 |
94,4 |
ii 26 |
82,5 |
77,0 |
78,2 |
60 |
112,5 |
104,0 |
93,5 |
24 |
81,0 |
76,0 |
77,4 |
58 |
110,0 |
102,0 |
92,6 |
! 22 |
80,0 |
75,0 |
76,5 |
56 |
108,0 |
100,0 |
91,7 |
!! 20 |
79,0 |
74,0 |
75,6 |
54 |
106,0 |
98,0 |
90,8 |
i 18 |
78,0 |
73,0 |
74,7 |
52 |
104,0 |
96,0 |
89,9 |
;; 16 |
76,5 |
71,5 |
73,8 |
50 |
102,0 |
94,0 |
89,0 |
jj 14 |
75,5 |
70,5 |
72,9 |
48 |
100,0 |
92,5 |
88,1 |
li12 |
74,5 |
69,5 |
72,0 |
46 |
98,0 |
90,5 |
87,2 |
! 10 |
73,5 |
68,5 |
71,1 |
44 |
96,0 |
' 89,0 |
86,5 |
« 8 |
72,5 |
67,5 |
70,2 |
42 |
94,5 |
88,0 |
85,4 |
I! 6 |
71,5 |
66,5 |
69,3 |
40 |
92,5 |
86,0 |
84,5 |
li 4 |
71,0 |
66,0 |
68,4 |
38 |
91,0 |
84,5 |
85,6 |
|j 2 |
70,0 |
65,0 |
67,6 |
36 |
89,5 |
83,5 |
82,7 |
i o |
69,5 |
64,0 |
66,7 |
13