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All Categories > Alloyed Bars and Plates > Aircraft Alloy Steels > Cold Finished Aircraft Alloy Bars > 4130 Aircraft Alloy Bars > 4130 Aircraft Heat Treated, Cold Fin. & Stress Believed Alloy Bars - Rounds  
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4130 Aircraft Heat Treated, Cold Fin. & Stress Believed Alloy Bars - Rounds

25 Items Available

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This chromium-molybdenum alloy is one of the most widely used aircraft steels because of its combination of weldability, ease of fabrication, and mild hardenability. In relatively thin sections it will respond to heat treatment to high strength levels and yet in the normalized condition it has adequate strength for many applications. When resistance to wear and abrasion is required, it may be nitrided.
This grade is a quality product melted under the best steelmaking practices for aircraft quality steels. It is vacuum degassed to meet the magnetic particle inspection standards of AMS 2301.

UNS G41300, MIL-S-6758 - AMS 6370 - AMS 2301

Physical Condition F
Surface Condition 4

Stock Lengths 12' and 20'


Item #

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar

1/8 .0418 lb .5012 lb
3/16 .0940 lb 1.128 lb
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
15/32 .5870 lb 7.050 lb
1/2 .6682 lb 8.019 lb
17/32 .7540 lb 9.050 lb
9/16 .8457 lb 10.15 lb
Showing 10 of 25  |  View All 25 Standard Items

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