Metal Bars Inc.
14530 S. Marquardt Ave.
Santa Fe Springs, CA
90670

(562) 921-8484
(714) 994-5901
Toll Free Outside
L.A. and O.C.
1-888-724-7644
RELATIVE COMPARISON HARDNESS REFERENCE TABLES
C Br'l TENSILE STRENGTH
150 Kg.
Brale		 3,000 Kg.
10mm
Ball
ROCKWELL Brinell
(Hufgren Ball)		 Thousand LBS.
Per Sq. Ft.
70 INEXACT AND ONLY FOR STEEL
69 INEXACT AND ONLY FOR STEEL
68 INEXACT AND ONLY FOR STEEL
67 INEXACT AND ONLY FOR STEEL
66 INEXACT AND ONLY FOR STEEL
65 INEXACT AND ONLY FOR STEEL
64 INEXACT AND ONLY FOR STEEL
63 INEXACT AND ONLY FOR STEEL
62 INEXACT AND ONLY FOR STEEL
61
60 614
59 600
58 587
57 573
56 560
55 547 301
54 534 291
53 522 282
52 509 273
51 496 264
50 484 255
49 472 246
48 460 237
47 488 229
46 437 221
45 426 214
44 415 207
42 393 194
40 372 182
38 352 171
36 332 162
34 313 153
32 297 144
30 383 136
28 270 129
26 260 123
24 250 117
22 240 112
20 230 108
B Br'l TENSILE STRENGTH
100 Kg.
1/16 in.
Ball		 3,000 Kg.
D.P.H.
10 Kg.
ROCKWELL Brinell
(Hufgren Ball)		 Thousand LBS.
Per Sq. Ft.
100 240 116
99 234 112
98 228 109
97 222 106
96 216 103
95 210 101
94 205 98
93 195 96
92 93 93
91 190 91
90 185 89
89 180 87
88 176 85
87 172 83
86 169 81
85 165 80
84 162 78
83 159 77
82 156 75
81 153 74
80 150 72
79 147 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
78 144 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
77 141 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
76 139 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
75 137 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
74 135 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
72 130 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
70 125 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
68 121 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
66 117 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
64 114 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
62 110 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
60 107 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
58 104 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
56 101 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
54 87 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
52 85 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
50 83 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
48 81 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
46 79 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
44 78 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
42 76 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
40 74 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
38 73 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
36 71 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
34 70 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
32 69 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
30 68 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
28 66 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
24 64 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
20 62 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
16 60 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
12 58 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
8 56 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
4 55 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.
0 53 Even for Steel, Tensile Strength Relation to Hardness is inexact, unless determined for specific material.

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