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All Categories > Alloyed Bars and Plates > Aircraft Alloy Steels > Hot Rolled Aircraft Alloy Bars > 300M VAR Premium Aircraft Alloy > 300M VAR Premium Aircraft Hot Rolled Normalized and Tempered Alloy - Rounds  
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300M VAR Premium Aircraft Hot Rolled Normalized and Tempered Alloy - Rounds

19 Items Available

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(E4340 Modified)
This steel is a chromium nickel molybdenum alloy similar to 4340, but modified by the addition of vanadium and a higher silicon content. The silicon acts to displace the 500°F temper embrittlement range to higher temperatures. The overall alloy content acts to produce higher strength levels without the necessity of increasing the carbon content. Thus, this alloy offers a combination of toughness and ductility at high strength levels. It is a deep hardening steel with excellent torque properties. It has high fatigue and creep characteristics and maintains its strength at moderately high temperatures.

The grade is available as a consumable electrode vacuum remelted product. This insures a steel of the highest quality with excellent transverse ductility and toughness at high strength levels. It also insures the non-metallic cleanliness of this alloy meeting AMS 2300, thus making it most suitable for the fabrication of parts subjected to magnetic particle inspection.

MIL-S-8844 - AMS 6417 - AMS 2300

Color Marking: Ends painted Brown with Yellow Stripe

Physical Conditions E
Surface Condition 1

Stock Lengths 12' Approx.


Item #

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar

1 1/4 4.176 lb 50.12 lb
7/16 5.523 lb 66.28 lb
1/2 6.014 lb 72.17 lb
5/8 7.058 lb 84.70 lb
3/4 8.186 lb 98.23 lb
2 10.69 lb 128.3 lb
2 1/4 13.53 lb 162.4 lb
2 1/2 16.71 lb 200.5 lb
2 3/4 20.21 lb 242.6 lb
3 24.06 lb 288.7 lb
Showing 10 of 19  |  View All 19 Standard Items

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