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4140/42/45/50 (Continued)
4140/42/50 AND 41L40/42/50
HOT ROLLED HEAT TREATED ROUNDS
Quenched and Tempered – Machine Straightened
For mechanical properties, see bottom of opposite page
Stock Lengths 20' Approx.

Est. Wts., Lbs.

Est. Wts., Lbs.

Est. Wts., Lbs.
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
1/4 0.1671 3.341  2  3/8 15.08 301.5 6  1/4 104.4 2088
5/16 0.2610 5.22  1/2 16.71 334.1  1/2 112.9 2259
3/8 0.3759 7.517  5/8 18.42 368.4  3/4 121.8 2436
7/16 0.5116 10.23  3/4 20.21 404.3 7 131.0 2619
1/2 0.6682 13.36  7/8 22.09 441.9  1/4 140.5 2810
9/16 0.8457 16.91 3 2406 481.1  1/2 150.4 3007
5/8 1.044 20.88  1/8 26.10 522.0  3/4 160.5 3211
11/16 1.263 25.27  1/4 28.23 564.6 8 171.1 3421
3/4 1.504 30.07  3/8 30.45 608.9  1/4 181.9 3638
7/8 2.046 40.93  1/2 32.74 654.8  1/2 193.1 3862
1 2.673 53.46  5/8 35.12 702.5  3/4 204.6 4093
1/16 3.017 60.35  3/4 37.59 751.7 9 216.5 4330
1/8 3.383 67.66  7/8 40.14 802.7  1/4 228.7 4574
3/16 3.769 75.38 4 42.77 855.3  1/2 241.2 4824
1/4 4.176 83.53  1/8 45.48 909.6  1/4 254.1 5082
5/16 4.064 92.09  1/4 48.28 965.6 10 267.3 5346
3/8 5.053 101.1  1/2 54.13 1083  1/4 280.8 5616
7/16 5.523 110.5  5/8 57.18 1143  1/2 294.7 5894
1/2 6.014 120.3  3/4 60.31 1206 11 323.4 6468
5/8 7.058 141.2  7/8 63.52 1270  1/2 353.5 7070
3/4 8.186 163.7 5 66.82 1336 12 384.9 7698
7/8 9.937 187.9  1/4 73.67 1473  1/2 417.6 8353
2 10.69 213.8  1/2 80.86 1617      
1/8 12.07 214.4  3/4 88.37 1767      
1/4 13.53 270.6 6 96.22 1924      


Size

OD

HOT ROLLED

Hot Rolled

Press Forged

Press Forged

Press Forged

Wt./Ft.

WT 20 FT Bar

Rough Turned

Wt./Ft.

WT 20 FT Bar
   

¼" Over

    
13  13.000 451.72 9034 13.250 469.26 9385
  1/4  13.250 469.26 9385  13.500 487.14 9743
  1/2  13.500 487.14 9743  13.750 505.35 10107
14  14.000 523.89 10478  14.250 542.77 10855
  3/8  14.375 552.33 11047  14.625 571.71 11434
  1/2  14.500 561.98 11240  14.750  581.52 11630
  3/4  14.750 581.52 11630  15.000 601.40 12028
  7/8  14.875 591.42 11828  15.125 611.47 12229
15  15.000 601.40 12028  15.250 621.62 12432
  1/2  15.500 642.16 12843  15.750 663.05 13261
  7/8  15.875 673.61 13472  16.125 695.00 13900
16  16.000 684.26 13685  16.250 705.81 14116
  1/4  16.250 705.81 14116  16.500 727.7 14554
  1/2  16.500 727.70 14554  16.750 749.92 14998
17  17.000 772.47 15449  17.250 795.35 15907
  1/4  17.250 795.35 15907  17.500 818.58 16372
18  18.000 866.02 17320  18.250 890.24 17805
  1/4  18.250 890.24 17805  18.500 914.80 18296
19  19.000 964.92 19298  19.250 990.48 19810
  1/2  19.500 1016.37 20327  19.750 1042.60 20852
  3/4  19.750 1042.60 20852  20.000 1069.16 21383


4140/42/45/50 (Continued)
4140 ANNELAED AND
COLD DRAWN HEXAGONS
Maximum Brinell 235
Stock Lengths 12' Approx.

Est. Wts., Lbs.

Est. Wts., Lbs.

Est. Wts., Lbs.
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
 7/16 0.5641 6.769 1. 3/8 5.572 66.87  1/4 0.0709 10.21
 1/2 0.7368 8.842  7/16 6.090 73.08  3/8 0.1064 15.31
 9/16 0.9325 11.19  1/2 6.631 79.56  1/2 0.1418 20.42
 5/8 1.151 13.82  5/8 7.783 93.39  5/8 0.1773 25.52
 11/16 1.393 16.72  11/16 8.393 100.7  3/4 0.2127 30.63
 3/4 1.658 19.89  3/4 9.026 108.3  7/8 0.2481 35.73
13/16 1.946 23.35  7/8 10.36 124.3 1 0.2836 40.84
 7/8 2.257 27.08 2 11.79 141.5  1/8 0.3191 45.94
15/16 2.590 31.08  1/8 13.31 159.7  1/4 0.3545 51.05
1 2.947 35.37  1/4 14.92 179.0  3/8 0.3900 56.16
 1/16 3.327 39.93  1/2 18.42 221.0  1/2 0.4254 61.26
 1/8 3.730 44.76  3/4 22.29 267.5  3/4 0.4963 71.47
 1/4 4.605 55.26 3 26.53 318.3 2 0.5672 81.68
 5/16 5.077 60.93        1/4 0.6381 91.89
             1/2 0.7090 102.1
             3/4 0.7799 112.3
            3 0.8508 122.5
             1/4 0.9217 132.7
             1/2 0.9926 142.9
             3/4 1.064 153.1
            4 1.134 163.4
             1/4 1.204 173.6
             1/2 1.276 183.8
             3/4 1.347 194.0
            5 1.418 204.2
             1/2 1.560 224.6
            6 1.702 245.0
             1/2 1.843 265.5
            7 1.985 285.9
             1/2 2.127 306.3
            8 2.269 326.7
             1/2 2.411 347.1
            9 2.552 367.6
            10 2.836 408.4
            11 3.119 449.2
            12 3.403 490.1
            13 3.687 530.9
            14 3.970 571.7
            16 4.538 653.4


4140/42 Squares

Hot Rolled Heat Treated

Annelaed &Cold Drawn
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
1 3.403 68.06  1/4 0.2127 2.552
 1/8 4.307 86.14  3/8 0.4786 5.743
 1/4 5.318 106.4  7/16 0.6514 7.817
 1/2 7.657 153.1  1/2 0.8508 10.21
 3/4 10.42 208.4  9/16 1.077 12.92
2 13.61 272.3  5/8 1.329 15.95
 1/4 17.23 344.6  3/4 1.914 22.97
 3/8 19.20 383.9  7/8 2.606 31.27
 1/2 21.27 425.4 1 3.403 40.84
 3/4 25.74 514.7  1/8 4.307 51.69
3 30.63 612.6  1/4 5.318 63.81
 1/2 41.69 833.8  3/8 6.434 77.21
4 54.45 1089  1/2 7.657 91.89
 1/2 68.91 1378  3/4 10.42 125.1
      2 13.61 163.4
       1/4 17.23 206.7
       1/2 21.27 255.2
      3 30.63 367.5


MECHANICAL PROPERTIES OF 4142 AND 41L42
HEAT TREATED BARS – ASTM A 434 GRADE B/C*
 
Tensile Strength (psl) Minimum
Yield Strength (psl) Minimum
Elongation In 2" Minimum
Reduction of Area Minimum
Surface Brinell Hardness
1 1/2'" and under 130,000 110,000 16% 50% 269 - 321
Over 1 ½" to 2 ½" 125,000 105,000 16% 50% 269 - 321
Over 2 ½" to 4" 115,000 95,000 16% 45% 269 - 321
Over 4" to 7" 85,000 110,000 16% 45% 269 - 321
Over 7" to 9 ½" 80,000 105,000 15% 40% 269 - 321
*Also Stocked in ASTM A 193 Grade B7 and ASTM A434 Grade BD.      


4140/42/45/50 (Continued)
4140/42/45/50 AND 41L40/42/50
HOT ROLLED ANNEALED ROUNDS*
Machine Straightened - Maximum Brinell 212
Stock Lengths 20' Approx.

Est. Wts., Lbs.

Est. Wts., Lbs.
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
 3/8 3759 7.517 8 171.1 3421
 1/2 6682 13.36  1/4 181.9 3638
 9/16 0.8457 16.91  1/2 181.9 3862
 5/8 1.044 20.88  3/4 204.6 4093
 11/16 1.263 25.27 9 216.5 4330
 3/4 1.504 30.07  1/4 228.7 4574
 7/8 2.046 40.93  1/2 241.2 4824
1 2.673 53.46  3/4 254.1 5082
 1/8 3.383 67.66 10 267.3 5346
 1/4 4.176 83.53  1/4 280.8 5616
 5/16 4.604 92.09  1/2 294.7 5894
 3/8 5.053 101.1 11 323.4 6468
 7/16 5.523 110.5  1/2 353.5 7070
 1/2 6.014 120.3 12 384.9 7698
 5/8 7.058 141.2  1/4 401.1 8022
 3/4 8.186 163.7  1/2 417 .6 8353
 7/8 9.397 187.9 13 451.72 9034
2 10.69 213.8  1/4 469.26 9385
 1/8 12.07 241.4  1/2 487.14 9743
 1/4 13.53 270.6 14 523.89 10478
 3/8 15.08 301.5  3/8 552.33 11047
 1/2 16.71 334.1  1/2 561.98 11240
 5/8 18.42 368.4  3/4 581.52 11630
 3/4 20.21 404.3  7/8 591.42 11828
 7/8 22.09 441.9 15 601.40 12028
3 24.06 481.1  1/2 642.16 12843
 1/8 26.10 522.0  7/8 673.61 13472
 1/4 28.23 564.6 16 684.26 13685
 3/8 30.45 608.9  1/4 705.81 14116
 1/2 32.74 654.8  1/2 727.70 14554
 5/8 35.12 702.5 17 772.47 15449
 3/4 37.59 751.7  1/4 795.35 15907
 7/8 40.14 802.7 18 866.02 17320
4 42.77 855.3  1/4 890.24 17805
 1/8 45.48 909.6 19 964.92 19298
 1/4 48.28 965.6  1/2 1016.37 20327
 1/2 54.13 1083  3/4 1042.6 20852
 5/8 57.18 1143 20 1069.16 21383
 3/4 60.31 1206  1/2 1123.29 22466
5 66.82 1336  3/4 1150.85 23017
 1/8 70.21 1404 21 1178.75 23575
 1/4 73.67 1473  1/4 1206.98 24140
 3/8 77.22 1544  1/2 1235.55 24711
 1/2 80.86 1617 22 1293.68 25874
 3/4 88.37 1767  3/4 1383.39 27668
6 96.22 1924 23 1413.96 28279
 1/4 104.4 2088  1/4 1444.87 28897
 1/2 112.9 2259  1/2 1476.11 29522
 3/4 121.8 2436 24 1539.59 30792
7 131.0 2619 26 1806.88 36138
 1/4 140.5 2810  1/2 1877.04 37541
 1/2 150.4 3007 28 2095.55 41911
 3/4 160.5 3211 30 2405.61 48112
      32 2737.05 54741


4140/42 and 41L40/42/50
ANNEALED and COLD DRAWN ROUNDS
Maximum Brinell 235 – Stock Lengths 12 Approx.

Est. Wts., Lbs.

Est. Wts., Lbs.
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
 3/16 0.0940 1.130 1  1/16 7.612 91.34
 1/4 0.1671 2.005  3/4 8.186 98.23
 5/16 0.261 3.132  13/16 8.781 105.4
 3/8 0.3759 4.510  7/8 9.397 112.8
 7/16 0.5116 6.139  15/16 10.03 120.4
 1/2 0.6682 8.019 2 10.69 128.3
 9/16 0.8457 10.15  1/8 12.07 144.8
 5/8 1.044 12.53  3/16 12.79 153.5
 11/16 1.263 15.16  1/4 13.53 162.4
 1/4 1.504 18.04  3/8 15.08 180.9
 13/16 1.765 21.17  7/16 15.88 190.6
 7/8 2.046 24.56  1/2 16.71 200.5
 15/16 2.349 28.19  5/8 18.42 221.0
1 2.673 32.07  3/4 20.21 242.6
 1/10 3.017 36.21  7/8 22.09 265.1
 1/8 3.383 40.59  15/16 23.06 276.8
 3/10 3.769 45.23 3 24.06 288.7
 1/4 4.176 50.12  1/8 26.10 313.2
 5/16 4.604 55.25  1/4 28.23 338.8
 3/8 5.053 60.64  1/2 32.74 392.9
 7/16 5.523 66.28  1/4 37.59 451.0
 1/2 6.014 72.17 4 42.77 513.2
 9/16 6.526 78.31  1/4 48.28 579.3
 5/8 7.058 84.70  1/2 54.18 649.5
      5 66.82 801.9


4140/42/45/50 (Continued)
4140/42/50 AND 41L40/42/50
HOT ROLLED HEAT TREATED ROUNDS
Quenched and Tempered – Machine Straightened
For mechanical properties, see bottom of opposite page
Stock Lengths 20' Approx.

Size

OD

HOT ROLLED

Hot Rolled

Press Forged

Press Forged

Press Forged

Wt./Ft.

WT 20 FT Bar

Rough Turned

Wt./Ft.

WT 20 FT Bar
   

¼" Over

    
20 20.000 1069.16 21383 20.250 1096.06 21921
 1/2 20.500 1123.29 22466 20.750 1150.85 23017
 3/4 20.750 1150.85 23017 21.000 1178.75 23575
21 21.000 1178.75 23575 21.250 1206.98 24140
 1/4 21.250 1206.98 24140 21.500 1235.55 24711
 1/2 21.500 1235.55 24711 21.750 1264.45 25289
22 22.000 1293.68 25874 22.250 1323.25 26465
 3/4 22.750 1383.39 27668 23.000 1413.96 28279
23 23.000 1413.96 28279 23.250 1444.87 28897
 1/4 23.250 1444.87 28897 23.500 1476.11 29522
 1/2 23.500 1476.11 29522 23.750 1507.68 30154
24 24.000 1539.59 30792 24.250 1571.83 31437
26 26.000 1806.88 36138 26.250 1841.80 36836
 1/2 26.500 1877.04 37541 26.750 1912.63 38253
28 28.000 2095.55 41911 28.250 2133.14 42663
30 30.000 2405.61 48112 30.250 2445.87 48917
32 32.000 2737.05 54741 32.250 2779.98 55600


4140/42 AND 41L40/42
HEAT TREATED COLD DRAWN OR G & P ROUNDS
For mechanical properties,see bottom of opposite page.
Stock Lengths 12' and 20'

Est. Wts., Lbs.

Est. Wts., Lbs.
Size in Inches
Per Foot
12-Ft Bar
Size in Inches
Per Foot
12-Ft Bar
 1/4 0.1671 2.005  1  11/16 7.612 91.34
 5/16 0.2610 3.132  3/4 8.186 98.23
 1/8 0.3759 4.510  13/16 8.781 105.4
 7/16 0.5116 6.139  7/8 9.397 112.8
 1/2 0.6682 8.019 15/16 10.03 120.4
 2/16 0.8457 10.15 2 10.69 128.3
 5/8 1.044 12.53  1/8 12.07 144.8
 11/16 1.263 15.16  1/4 13.53 162.4
 1/4 1.504 18.04  5/16 14.29 171.5
 11/16 1.765 21.17  3/8 15.08 180.9
 7/11 2.046 24.56  7/16 15.88 190.6
 1/16 2.349 28.19  1/2 16.71 200.5
1 2.673 32.07  5/8 18.42 221
 1/16 3.017 36.21  3/4 20.21 242.6
 1/11 3.383 40.59 15/16 23.06 276.8
 1/16 3.769 45.23 3 24.06 288.7
 1/4 4.176 50.12  1/8 26.1 313.2
 5/16 4.604 55.25  3/16 27.16 325.9
 1/8 5.053 60.64  1/4 28.23 338.8
 2/16 5.523 66.28  3/8 30.45 365.4
 1/4 6.014 72.17  1/2 32.74 392.9
 11/16 6.526 78.31  3/4 37.59 451
  7.058 84.70 15/16 41.44 497.3
      4 42.77 513.2

 

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