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All Categories > Alloyed Bars and Plates > Hot Rolled Alloy Steels > 4340 Hot Rolled Annealed Alloy Steel > 4340 Hot Rolled Annealed Alloy Steel - Plates > View Items  
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4340 Hot Rolled Annealed Alloy Steel - Plates

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This is the "king" of the hardening grades of constructional alloy steels. Because of richer alloy content, 4340 possesses much deeper hardenability than the 4100 series. This advantage is realized principally where high strength is required in heavy sections. In addition, unusually high hardenability insures maximum toughness and ductility at the desired strength level. The fatigue-tensile ratio makes this grade ideal for highly stressed parts. It maintains its strength, ductility, and toughness at relatively high temperatures. It has remarkable non-distorting properties for an alloy steel. Thus, for high strength in heavy sections, or for highly stressed parts operating under the most severe conditions, or where the greatest margin of safety is desired, this is the steel to use.

Nickel-Chromium-Molybdenum Steel

UNS G43400


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Thickness

Estimated Weight per Sq. In.

Estimated Weight per Sq. Ft.

1/2 .1418 20.42
5/8 .1773 25.52
3/4 .2127 30.63
1 .2836 40.84
1 1/4 .3545 51.05
1 1/2 .4254 61.26
1 3/4 .4963 71.47
2 .5672 81.68
2 1/4 .6381 91.89
2 1/2 .7090 102.1
2 3/4 .7799 112.3
3 .8508 122.5
3 1/4 .9217 132.7
3 1/2 .9926 142.9
4 1.134 163.4
4 1/2 1.276 183.8
5 1.418 204.2
5 1/2 1.560 224.6
6 1.702 245.0
6 1/2 1.843 265.5
7 1.985 285.9
8 2.269 326.7
9 2.552 367.6
10 2.836 408.4
11 3.119 449.2
  Results 1 - 25 of 26 1 2 
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