LBS Catalog

Technical Information

Tensile Strength and H ardness Relationship For Carbon Steel Fasteners

Tensile Strength ksi (Approx)

Vickers Hardness

Rockwell Hardness (Surface)

Rockwell Hardness

HV 127 137 150 160 166 173 180 188 196 204 213 222 230 238 243 248 254 260 266 272 279 286 294 302 310 318 327 336 345 354 363 372 382 392 402 412 423 434 446 458 471 484 498 513 528 544 560

HRA

HRB HRC

HR15N

HR30N

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69.8 74.0 78.7 81.7 83.5 85.5 87.1 89.5 90.7 92.3 93.9 95.5 96.7 97.8 98.5 99.0

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60 65 71 75 77 80 84 87 90 94 98

Resources

(0) (2) (4) (6) (8)

(10) (12) (14) (16) (18)

102 106 110 112 114 117 120 122 125 128 132 135 138 142 145 149 153 157 162 168 171 176 181 188 194 201 208 215 222 229 237 246 255 264 273 283

60.5 61.0 61.5 62.0 62.4 62.8 63.3 63.8 64.3 64.7 65.3 65.8 66.3 66.8 67.4 67.9 68.4 68.9 69.4 69.9 70.4 70.9 71.5 72.0 72.5 73.1 73.6 74.1 74.7 75.2 75.9 76.3 76.8 77.4

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

69.4 69.9 70.5 71.0 71.6 72.2 72.8 73.3 73.9 74.5 75.0 75.6 76.1 76.6 77.2 77.7 78.3 78.8 79.4 79.9 80.4 80.9 81.5 82.0 82.5 83.0 83.5 83.9 84.5 85.0 85.5 85.9 86.4 86.9

41.5 42.3 43.2 44.0 45.0 45.9 46.8 47.7 48.6 49.5 50.4 51.3 52.1 53.3 54.2 55.0 55.9 56.8 57.7 58.6 59.5 60.4 61.3 62.2 63.1 64.0 64.8 65.8 66.7 67.6 68.5 69.4 70.2 71.2

100.0 (101.0) (101.5) (102.5) (103.0) (104.0) (104.5) (105.5) (106.0) (107.0) (107.5) (108.0) (108.5) (109.0)

Assortments A-12 Fasteners F-72

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Cutting Tools C-325

Pipe Fittings P-541 Electrical E-704 Hydraulics H-745

Abrasives AB-782 MRO M-833

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