300M VAR Premium Aircraft Hot Rolled Normalized and Tempered Alloy

(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.

Size	Estimated Weight per Foot	Estimated Weight 12-Ft. Bar
1 1/4	N/A 4.176 lb	N/A 50.12 lb
7/16	N/A 5.523 lb	N/A 66.28 lb
1/2	N/A 6.014 lb	N/A 72.17 lb
5/8	N/A 7.058 lb	N/A 84.70 lb
3/4	N/A 8.186 lb	N/A 98.23 lb
2	N/A 10.69 lb	N/A 128.3 lb
2 1/4	N/A 13.53 lb	N/A 162.4 lb
2 1/2	N/A 16.71 lb	N/A 200.5 lb
2 3/4	N/A 20.21 lb	N/A 242.6 lb
3	N/A 24.06 lb	N/A 288.7 lb
3 1/4	N/A 28.23 lb	N/A 338.8 lb
3 1/2	N/A 32.74 lb	N/A 392.9 lb
3 3/4	N/A 37.59 lb	N/A 451.0 lb
4	N/A 42.77 lb	N/A 513.2 lb
4 1/4	N/A 48.28 lb	N/A 579.3 lb
4 1/2	N/A 54.13 lb	N/A 649.5 lb
5	N/A 66.82 lb	N/A 801.9 lb
5 1/2	N/A 80.86 lb	N/A 970.2 lb
6	N/A 96.22 lb	N/A 1155 lb

1 1/4

N/A 4.176 lb

N/A 50.12 lb

7/16

N/A 5.523 lb

N/A 66.28 lb

1/2

N/A 6.014 lb

N/A 72.17 lb

5/8

N/A 7.058 lb

N/A 84.70 lb

3/4

N/A 8.186 lb

N/A 98.23 lb

N/A 10.69 lb

N/A 128.3 lb

2 1/4

N/A 13.53 lb

N/A 162.4 lb

2 1/2

N/A 16.71 lb

N/A 200.5 lb

2 3/4

N/A 20.21 lb

N/A 242.6 lb

N/A 24.06 lb

N/A 288.7 lb

3 1/4

N/A 28.23 lb

N/A 338.8 lb

3 1/2

N/A 32.74 lb

N/A 392.9 lb

3 3/4

N/A 37.59 lb

N/A 451.0 lb

N/A 42.77 lb

N/A 513.2 lb

4 1/4

N/A 48.28 lb

N/A 579.3 lb

4 1/2

N/A 54.13 lb

N/A 649.5 lb

N/A 66.82 lb

N/A 801.9 lb

5 1/2

N/A 80.86 lb

N/A 970.2 lb

N/A 96.22 lb

N/A 1155 lb

Product Catalog

Size

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar