4340 Hot Rolled Annealed Alloy Steel - Rounds On Fay Industries, Inc. (Steel * Saw Cutting)

This is the "king" of the hardening grades of constructional alloy steels. Because of richer alloy content, 4340 possesses much deeper hardenability than the 4100 series. This advantage is realized principally where high strength is required in heavy sections. In addition, unusually high hardenability insures maximum toughness and ductility at the desired strength level. The fatigue-tensile ratio makes this grade ideal for highly stressed parts. It maintains its strength, ductility, and toughness at relatively high temperatures. It has remarkable non-distorting properties for an alloy steel. Thus, for high strength in heavy sections, or for highly stressed parts operating under the most severe conditions, or where the greatest margin of safety is desired, this is the steel to use.

Nickel-Chromium-Molybdenum Steel

UNS G43400

Machine Straightened

Maximum Brinell 235

Stock Lengths 20' Approx.

Size	Estimated Weight per Foot	Estimated Weight 20-Ft. Bar
2 1/2	N/A 16.71 lb	N/A 334.1 lb
8	N/A 171.1 lb	N/A 3421 lb
8 1/4	N/A 181.9 lb	N/A 3638 lb
2 5/8	N/A 18.42 lb	N/A 368.4 lb
8 1/2	N/A 193.1 lb	N/A 3862 lb
7/8	N/A 2.046 lb	N/A 40.93 lb
2 3/4	N/A 20.21 lb	N/A 404,3 lb
8 3/4	N/A 204.6 lb	N/A 4093 lb
9	N/A 216.5 lb	N/A 4330 lb
2 7/8	N/A 22.09 lb	N/A 441.9 lb
9 1/4	N/A 228.7 lb	N/A 4574 lb
3	N/A 24.06 lb	N/A 481.1 lb
9 1/2	N/A 241.2 lb	N/A 4824 lb
9 3/4	N/A 254.1 lb	N/A 5082 lb
3 1/8	N/A 26.10 lb	N/A 522.0 lb
1	N/A 2.673 lb	N/A 53.46 lb
10	N/A 267.3 lb	N/A 5346 lb
3 1/4	N/A 28.23 lb	N/A 564.6 lb
10 1/2	N/A 294.7 lb	N/A 5894 lb
11	N/A 323.4 lb	N/A 6468 lb
3 1/2	N/A 32.74 lb	N/A 654.8 lb
1 1/8	N/A 3.383 lb	N/A 67.66 lb
11 1/4	N/A 338.3 lb	N/A 6766 lb
3 5/8	N/A 35.12 lb	N/A 702.5 lb
11 1/2	N/A 353.5 lb	N/A 7070 lb

2 1/2

N/A 16.71 lb

N/A 334.1 lb

N/A 171.1 lb

N/A 3421 lb

8 1/4

N/A 181.9 lb

N/A 3638 lb

2 5/8

N/A 18.42 lb

N/A 368.4 lb

8 1/2

N/A 193.1 lb

N/A 3862 lb

7/8

N/A 2.046 lb

N/A 40.93 lb

2 3/4

N/A 20.21 lb

N/A 404,3 lb

8 3/4

N/A 204.6 lb

N/A 4093 lb

N/A 216.5 lb

N/A 4330 lb

2 7/8

N/A 22.09 lb

N/A 441.9 lb

9 1/4

N/A 228.7 lb

N/A 4574 lb

N/A 24.06 lb

N/A 481.1 lb

9 1/2

N/A 241.2 lb

N/A 4824 lb

9 3/4

N/A 254.1 lb

N/A 5082 lb

3 1/8

N/A 26.10 lb

N/A 522.0 lb

N/A 2.673 lb

N/A 53.46 lb

N/A 267.3 lb

N/A 5346 lb

3 1/4

N/A 28.23 lb

N/A 564.6 lb

10 1/2

N/A 294.7 lb

N/A 5894 lb

N/A 323.4 lb

N/A 6468 lb

3 1/2

N/A 32.74 lb

N/A 654.8 lb

1 1/8

N/A 3.383 lb

N/A 67.66 lb

11 1/4

N/A 338.3 lb

N/A 6766 lb

3 5/8

N/A 35.12 lb

N/A 702.5 lb

11 1/2

N/A 353.5 lb

N/A 7070 lb

Product Catalog

Size

Estimated Weight per Foot

Estimated Weight 20-Ft. Bar