Tabela de equivalência de - dureza - ASTM E140

Tabela de equivalência de dureza - ASTM E140 - 05
Tabela 2
Tabela de equivalência de dureza - ASTM E140 - 05
Tabela 1
Rockwell C
Hardness
Number
150 kgf
(HRC)
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
ABNT 20
Rockwell Superficial Hardness Number
15-N
Vickers
SCALE,
Hardness
15-kgf
Number
(HR 15-N)
(HV)
940
900
865
832
800
772
746
720
697
674
653
633
613
595
577
560
544
528
513
498
484
471
458
446
434
423
412
402
392
382
372
363
354
345
336
327
318
310
302
294
286
279
272
266
260
254
248
243
238
SAE/AISI
93.2
92.9
92.5
92.2
91.8
91.4
91.1
90.7
90.2
89.8
89.3
88.9
88.3
87.9
87.4
86.9
86.4
85.9
85.5
85.0
84.5
83.9
83.5
83.0
82.5
82.0
81.5
80.9
80.4
79.9
79.4
78.8
78.3
77.7
77.2
76.6
76.1
75.6
75.0
74.5
73.9
73.3
72.8
72.2
71.6
71.0
70.5
69.9
69.4
30-N
SCALE,
30-kgf
(HR 30-N)
84.4
83.6
82.8
81.9
81.1
80.1
79.3
78.4
77.5
76.6
75.7
74.8
73.9
73.0
72.0
71.2
70.2
69.4
68.5
67.6
66.7
65.8
64.8
64.0
63.1
62.2
61.3
60.4
59.5
58.6
57.7
56.8
55.9
55.0
54.2
53.3
52.1
51.3
50.4
49.5
48.6
47.7
46.8
45.9
45.0
44.0
43.2
42.3
41.5
45-N
SCALE,
45-kgf
(HR 45-N)
75.4
74.2
73.3
72.0
71.0
69.9
68.8
67.7
66.6
65.5
64.3
63.2
62.0
60.9
59.8
58.6
57.4
56.1
55.0
53.8
52.5
51.4
50.3
49.0
47.8
46.7
45.5
44.3
43.1
41.9
40.8
39.6
38.4
37.2
36.1
34.9
33.7
32.5
31.3
30.1
28.9
27.8
26.7
25.5
24.3
23.1
22.0
20.7
DIN 19.6
Rockwell B
Hardness
Number,
100 kgf
(HRB)
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
Tabela de Equivalência de Normas para
Aços Carbono e Aços Ligados
Rockwell Superficial Hardness Number
30-T
15-T
SCALE,
SCALE,
30-kgf
15-kgf
(HR 15-T) (HR 30-T)
45-T
SCALE,
45-kgf
(HR 45-T)
93.1
83.1
72.9
92.8
82.5
71.9
92.5
81.8
70.9
92.1
81.1
69.9
91.8
80.4
68.9
91.5
79.8
67.9
91.2
79.1
66.9
90.8
78.4
65.9
90.5
77.8
64.8
90.2
77.1
63.8
89.9
76.4
62.8
89.5
75.8
61.8
89.2
75.1
60.8
89.9
74.4
59.8
88.6
73.8
58.8
88.2
73.1
57.8
87.9
72.4
56.8
87.6
71.8
55.8
87.3
71.1
54.8
86.9
70.4
53.8
86.6
69.7
52.8
86.3
69.1
51.8
86.0
68.4
50.8
85.6
67.7
49.8
85.3
67.1
48.8
85.0
66.4
47.8
84.7
65.7
46.8
84.3
65.1
45.8
84.0
64.4
44.8
83.7
63.7
43.8
83.4
63.1
42.8
83.0
62.4
41.8
82.7
61.7
40.8
82.4
61.0
39.8
82.1
60.4
38.7
81.8
59.7
37.7
81.4
59.0
36.7
81.1
58.4
35.7
80.8
57.7
34.7
80.5
57.0
33.7
80.1
56.4
32.7
Rockwell Superficial Hardness Number
Rockwell B
30-T
45-T
15-T
Hardness
SCALE,
SCALE,
SCALE,
Number,
30-kgf
45-kgf
15-kgf,
100 kgf,
1/16-in.
1/16-in.
1/16-in
1/16-in.
(1.588-mm) (1.588-mm) (1.588-mm) (1.588-mm)
Ball
Ball
Ball
Ball
59
79.8 (1) (2) 55.7
Tabela de Equivalências Internacionais
58
79.5
55.0
Vickers
Hardness
Number
(HV)
240
234
228
222
216
210
205
200
195
190
185
180
176
172
169
165
162
159
156
153
150
147
144
141
139
137
135
132
130
127
125
123
121
119
117
116
114
112
110
108
107
Vickers
Hardness
Number
(HV)
31.7
106
30.7
104
JIS
57
79.2 BS 54.4
29.7
103ASTM
56
78.8
53.7
28.7
101
NBR NM 87 : 1996 SAE J403 : 1994 EN 10132-3 : 2000 EN 10132-4 : 2000 17200 : 1984 17222 : 1979 17350 : 1980
1449 : 1991
G 4051 : 1979 G 4401 : 1983 A682M : 1998
55
78.5
53.0
27.7
100
54
78.2
52.4 S20C 26.7
1020
1020
C22E (3)
Ck22
53
77.9
51.7
25.7
1035
1035
C35E
Ck35
52
77.5
51.0 S35C 24.7
- 1035
51 C 45 W (4)77.2
50.3 S45C 23.7
- 1045
1045
1045
C45E
Ck45
50
76.9
49.7
22.7
1050
1050
C50E
Ck50
49
76.6 CS50 49.0 S50C 21.7
- 1050
48
76.2
48.3
20.7
1055
1055
C55E
C55S
Ck55
Ck55 47
75.9
47.7 S55C 19.7
- 1055
(4)75.6
46
47.0
18.7
- 1060
1060
1060
C60E
C60S
Ck60
Ck60
C 60 W
CS60
S58C
45
75.3
46.3
17.7
1070
1070
C67S
Ck67 44
74.9 CS70 45.7
16.7
- 1070
43
74.6
45.0
15.7
1074
1074
C75S
Ck75
42
74.3
44.3
14.7
- 1074
41
74.0 CS80 43.7
13.6
- 1080
1080
1080
40
73.6
43.0
12.6
1095
1095
39
73.3 CS95 42.3
11.6 SK 4
- 1095
41.6
10.6
6151
51CrV4
50CrV4
50CrV4 38 51CrV4 73.0
37
72.7
41.0
9.6
36
72.3
40.3
8.6
6158
35
72.0
39.6
7.6
34
71.7
39.0
6.6
(1) Propriedades Mecânicas e condição de fornecimento devem ser acordados na hora da consulta
e encomenda.
33
71.4
38.3
5.6
(2) Esta tabela refere-se à equivalência entre normas apenas com o propósito de orientação,
de análise da37.6
especificação 4.6
do cliente.
32necessitando71.0
31
70.7
37.0
3.6
(3) % Manganês - 0,30/0,60, ao invés de 0,40/0,70% mencionado na norma.
30
70.4
36.3
2.6
(4) Meio de Têmpera - O = Óleo, PB-Bi = Chumbo Bismuto, ao invés de W(água), mencionado na norma.
Consulte sempre nosso departamento técnico. Você vai se surpreender.
www.armco.com.br