E-4340 Aircraft Hot Rolled Normalized & Tempered Alloy

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-5000 - AMS 2301

Color Marking: Ends painted Yellow

Physical Conditions E
Surface Condition 4

Stock Lengths: 12' and 20'

Maximum Brinell 235

Size	Estimated Weight per Foot	Estimated Weight 20-Ft. Bar
3/4	N/A 1.504 lb	N/A 30.07 lb
7/8	N/A 2.046 lb	N/A 40.93 lb
1	N/A 2.673 lb	N/A 53.46 lb
1 1/8	N/A 3.383 lb	N/A 67.66 lb
1 1/4	N/A 4.176 lb	N/A 83.53 lb
1 3/8	N/A 5.053 lb	N/A 101.1 lb
1 1/2	N/A 6.014 lb	N/A 120.3 lb
1 5/8	N/A 7.058 lb	N/A 141.2 lb
1 3/4	N/A 8.186 lb	N/A 163.7 lb
1 7/8	N/A 9.397 lb	N/A 187.9 lb
2	N/A 10.69 lb	N/A 213.8 lb
2 1/8	N/A 12.07 lb	N/A 241.4 lb
2 1/4	N/A 13.53 lb	N/A 270.6 lb
2 3/8	N/A 15.08 lb	N/A 301.5 lb
2 1/2	N/A 16.71 lb	N/A 334.1 lb
2 5/8	N/A 18.42 lb	N/A 368.4 lb
2 3/4	N/A 20.21 lb	N/A 404.3 lb
2 7/8	N/A 22.09 lb	N/A 441.9 lb
3	N/A 24.06 lb	N/A 481.1 lb
3 1/8	N/A 26.10 lb	N/A 522.0 lb
3 1/4	N/A 28.23 lb	N/A 564.6 lb
3 3/8	N/A 30.45 lb	N/A 608.9 lb
3 1/2	N/A 32.74 lb	N/A 654.8 lb
3 5/8	N/A 35.12 lb	N/A 702.5 lb
3 3/4	N/A 37.59 lb	N/A 751.7 lb
4	N/A 42.77 lb	N/A 855.3 lb
4 1/4	N/A 48.28 lb	N/A 965.6 lb
4 1/2	N/A 54.13 lb	N/A 1083 lb
4 3/4	N/A 60.31 lb	N/A 1206 lb
5	N/A 66.82 lb	N/A 1336 lb
5 1/4	N/A 73.67 lb	N/A 1474 lb
5 1/2	N/A 80.86 lb	N/A 1617 lb
5 3/4	N/A 88.37 lb	N/A 1767 lb
6	N/A 96.22 lb	N/A 1924 lb
6 1/4	N/A 104.4 lb	N/A 2088 lb
6 1/2	N/A 112.9 lb	N/A 2259 lb
6 3/4	N/A 121.8 lb	N/A 2436 lb
7	N/A 131.0 lb	N/A 2619 lb
7 1/2	N/A 150.4 lb	N/A 3007 lb
8	N/A 171.1 lb	N/A 3421 lb
8 1/2	N/A 193.1 lb	N/A 3862 lb
8 3/4	N/A 204.6 lb	N/A 4093 lb
9	N/A 216.5 lb	N/A 4330 lb
9 1/2	N/A 241.2 lb	N/A 4824 lb
10	N/A 267.3 lb	N/A 5346 lb
10 1/2	N/A 294.7 lb	N/A 5894 lb
11	N/A 323.4 lb	N/A 6468 lb
11 1/2	N/A 353.5 lb	N/A 7070 lb
12	N/A 384.9 lb	N/A 7698 lb
12 1/2	N/A 417.6 lb	N/A 8353 lb

3/4

N/A 1.504 lb

N/A 30.07 lb

7/8

N/A 2.046 lb

N/A 40.93 lb

N/A 2.673 lb

N/A 53.46 lb

1 1/8

N/A 3.383 lb

N/A 67.66 lb

1 1/4

N/A 4.176 lb

N/A 83.53 lb

1 3/8

N/A 5.053 lb

N/A 101.1 lb

1 1/2

N/A 6.014 lb

N/A 120.3 lb

1 5/8

N/A 7.058 lb

N/A 141.2 lb

1 3/4

N/A 8.186 lb

N/A 163.7 lb

1 7/8

N/A 9.397 lb

N/A 187.9 lb

N/A 10.69 lb

N/A 213.8 lb

2 1/8

N/A 12.07 lb

N/A 241.4 lb

2 1/4

N/A 13.53 lb

N/A 270.6 lb

2 3/8

N/A 15.08 lb

N/A 301.5 lb

2 1/2

N/A 16.71 lb

N/A 334.1 lb

2 5/8

N/A 18.42 lb

N/A 368.4 lb

2 3/4

N/A 20.21 lb

N/A 404.3 lb

2 7/8

N/A 22.09 lb

N/A 441.9 lb

N/A 24.06 lb

N/A 481.1 lb

3 1/8

N/A 26.10 lb

N/A 522.0 lb

3 1/4

N/A 28.23 lb

N/A 564.6 lb

3 3/8

N/A 30.45 lb

N/A 608.9 lb

3 1/2

N/A 32.74 lb

N/A 654.8 lb

3 5/8

N/A 35.12 lb

N/A 702.5 lb

3 3/4

N/A 37.59 lb

N/A 751.7 lb

N/A 42.77 lb

N/A 855.3 lb

4 1/4

N/A 48.28 lb

N/A 965.6 lb

4 1/2

N/A 54.13 lb

N/A 1083 lb

4 3/4

N/A 60.31 lb

N/A 1206 lb

N/A 66.82 lb

N/A 1336 lb

5 1/4

N/A 73.67 lb

N/A 1474 lb

5 1/2

N/A 80.86 lb

N/A 1617 lb

5 3/4

N/A 88.37 lb

N/A 1767 lb

N/A 96.22 lb

N/A 1924 lb

6 1/4

N/A 104.4 lb

N/A 2088 lb

6 1/2

N/A 112.9 lb

N/A 2259 lb

6 3/4

N/A 121.8 lb

N/A 2436 lb

N/A 131.0 lb

N/A 2619 lb

7 1/2

N/A 150.4 lb

N/A 3007 lb

N/A 171.1 lb

N/A 3421 lb

8 1/2

N/A 193.1 lb

N/A 3862 lb

8 3/4

N/A 204.6 lb

N/A 4093 lb

N/A 216.5 lb

N/A 4330 lb

9 1/2

N/A 241.2 lb

N/A 4824 lb

N/A 267.3 lb

N/A 5346 lb

10 1/2

N/A 294.7 lb

N/A 5894 lb

N/A 323.4 lb

N/A 6468 lb

11 1/2

N/A 353.5 lb

N/A 7070 lb

N/A 384.9 lb

N/A 7698 lb

12 1/2

N/A 417.6 lb

N/A 8353 lb

Product Catalog

Size

Estimated Weight per Foot

Estimated Weight 20-Ft. Bar