Home
About CIF
Testimonials

FAQ's

Product Guide

Special Services

Technical Library

Request a Quote
Wind Tower Bolts
 

 

Acrobat - File -pdf

 
Technical Library > Previous Page
Tensile Strength and Hardness Relationships for Carbon Steel Fasteners
Tensile Strength (Approx) ksi Rockwell Hardness No. Brinell Hardness No. Vickers Hardness No.
B Scale C Scale 30-N Scale
56
65.7
-
-
111
117
60
69.8
-
-
121
127
65
74.0
-
-
131
137
71
78.7
-
-
143
150
76
82.9
-
-
156
163
81
86.0
-
-
167
175
85
87.8
-
-
174
182
90
90.7
-
-
187
196
95
92.8
-
-
197
207
100
94.6
-
-
207
218
105
96.4
-
-
217
228
110
97.8
20
41.5
226
238
114
99.0
22
43.2
237
248
117
100.0
23
44.0
243
254
120
-
24
45.0
247
260
122
-
25
45.9
253
266
125
-
26
46.8
258
272
128
-
27
47.7
264
279
132
-
28
48.6
271
286
135
 
29
49.5
279
294
138
-
30
50.4
286
302
142
-
31
51.3
294
310
145
-
32
52.1
301
318
149
 
33
53.3
311
327
153
-
34
54.2
319
336
157
-
35
55.0
327
345
162
-
36
55.9
336
354
168
-
37
56.8
344
363
171
-
38
57.7
353
372
176
-
39
58.6
362
382
181
-
40
59.5
371
392
188
-
41
60.4
381
402
194
-
42
61.3
390
412
201
-
43
62.2
400
423
208
-
44
63.1
409
434
215
 
45
64.0
421
446
222
-
46
64.8
432
458
NOTE: Approximate tensile strengths and hardness value relationships are abstracted from conversion tables included in SAE Information Report J417 (see page N-45).
 

Chicago Industrial Fasteners, LLC
911 Sullivan Road – Aurora, Illinois 60506
Toll Free: 1-877-WeR-bolts (937-2658)
Phone: 630-301-7300 · Fax: 630-301-7400

 Eastern Regional Office
Phone: 571-261-4321
Fax: 571-261-4322
Info@ChicagoIndustrialFasteners.com