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All Categories > Alloyed Bars and Plates > Aircraft Alloy Steels > Cold Finished Aircraft Alloy Bars > E-4340 VAR Premium Aircraft Alloy > E-4340 VAR Premium Aircraft Normalized & Tempered Cold Finished Alloy - Rounds  
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E-4340 VAR Premium Aircraft Normalized & Tempered Cold Finished Alloy - Rounds

37 Items Available

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This chromium nickel molybdenum alloy is a widely used deep-hardening constructional steel. It is used at a variety of strength levels and at each level possesses remarkable ductility and toughness. With its high alloy content uniform hardness is developed by heat treatment in relatively heavy sections. High fatigue strength makes E-4340 ideal for highly stressed parts. It maintains its strength and hardness at elevated temperatures.

This grade is available as electric furnace vacuum degassed steel to meet the high aircraft quality standards of AMS 2301. Thus, it is suitable for the fabrication of parts which may be subjected to magnetic particle inspection.

This grade is also available as a Premium Aircraft Quality product. The regular aircraft quality material is remelted in a vacuum using consumable electrode practice. This results in a much cleaner steel meeting the magnetic particle test requirements of AMS-2300 and insures a steel of the highest quality with excellent transverse ductility and toughness at high strength levels.

UNS G43406, MIL-S-8844 - AMS 6414 - AMS 2300

Color Marking: Ends painted Red with Gold Stripe

Physical Conditions E
Surface Condition 4

Stock Lengths: 12' and 20'

Maximum Brinell 265


Item #

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar

1/4 .1671 lb 2.005 lb
5/16 2610 lb 3.132 lb
3/8 .3759 lb 4.510 lb
7/16 .5116 lb 6.139 lb
1/2 .6682 lb 8.019 lb
9/16 .8457 lb 10.15 lb
5/8 1.044 lb 12.53 lb
11/16 1.263 lb 15.16 lb
3/4 1.504 lb 18.04 lb
13/16 1.765 lb 21.17 lb
Showing 10 of 37  |  View All 37 Standard Items

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