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All Categories > Alloyed Bars and Plates > Aircraft Alloy Steels > Cold Finished Aircraft Alloy Bars > 4140 Aircraft Alloy Bars > 4140 Aircraft Annealed & Cold Finished Alloy - Rounds  
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4140 Aircraft Annealed & Cold Finished Alloy - Rounds

29 Items Available

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This chromium molybdenum alloy is a deep hardening steel used where strength and impact toughness are required. It has high fatigue strength making it suitable for critical stressed applications at normal as well as elevated temperatures. For increased resistance to wear and abrasion, it may be nitrided.
This grade is a quality product melted under the best of steelmaking practices for aircraft quality steels. It is vacuum degassed to meet the magnetic particle inspection standards of AMS 2301.

UNS G41400, MIL-S-5626 - AMS 6382 - AMS 2301

Color Marking:
Normalized Bars—Ends painted Gray
Annealed Bars—Ends painted Brown

Physical Conditions C
Surface Condition 4

Stock Lengths: 12' and 20'

Maximum Brinell 241


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 29  |  View All 29 Standard Items

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