Alloy Steel Flat Bar - 4140

4140 Alloy Flat Bar

4140 Alloy Steel Flat is an cold drawn annealed steel of relatively high hardenability with its chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. 4140 Alloy Steel Flat responds well to heat-treatment and is relatively easy to machine in the annealed condition. 4140 Alloy Steel Flat has good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures.

Specifications: ASTM A331, A108-13, AISI 4140
AKA: CDA Alloy Flat, 4140 Rectangle Bar
Applications: brake dies, fixtures, jigs, blades, tool holders,etc.
Workability: Moderate to Weld, Cut and Machine.
Mechanical Properties: Brinell = 197-223, Tensile = 95ksi
How is it Measured? Thickness (A) X Width (B) X Length
Available Stock Sizes: 2ft, 4ft, 6ft, 8ft, 12ft or Cut to Size

Stock lengths may vary +/- 1/4"
Please call if you need specific lengths.

California Residents Warning!

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F3141-4140 1/4 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3141-4140

1/4 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

0.85 lb

Select a Size 0.00

Weight: 0.85 lb/ft

F314112-4140 1/4 X 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F314112-4140

1/4 X 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

1.30 lb

Select a Size 0.00

Weight: 1.30 lb/ft

F3142-4140 1/4 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3142-4140

1/4 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

1.70 lb

Select a Size 0.00

Weight: 1.70 lb/ft

F3143-4140 1/4 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3143-4140

1/4 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

2.55 lb

Select a Size 0.00

Weight: 2.55 lb/ft

F3381-4140 3/8 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3381-4140

3/8 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

1.28 lb

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Weight: 1.28 lb/ft

F338114-4140 3/8 x 1-1/4
Alloy 4140 Steel Flat - Cold Drawn Annealed

F338114-4140

3/8 x 1-1/4
Alloy 4140 Steel Flat - Cold Drawn Annealed

1.59 lb

Select a Size 0.00

Weight: 1.59 lb/ft

F338112-4140 3/8 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F338112-4140

3/8 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

1.92 lb

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Weight: 1.92 lb/ft

F3382-4140 3/8 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3382-4140

3/8 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

2.55 lb

Select a Size 0.00

Weight: 2.55 lb/ft

F3383-4140 3/8 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3383-4140

3/8 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

3.82 lb

Select a Size 0.00

Weight: 3.82 lb/ft

F3121-4140 1/2 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3121-4140

1/2 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

1.70 lb

Select a Size 0.00

Weight: 1.70 lb/ft

F312112-4140 1/2 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F312112-4140

1/2 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

2.55 lb

Select a Size 0.00

Weight: 2.55 lb/ft

F3122-4140 1/2 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3122-4140

1/2 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

3.40 lb

Select a Size 0.00

Weight: 3.40 lb/ft

F3123-4140 1/2 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3123-4140

1/2 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

5.10 lb

Select a Size 0.00

Weight: 5.10 lb/ft

F3124-4140 1/2 x 4
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3124-4140

1/2 x 4
Alloy 4140 Steel Flat - Cold Drawn Annealed

6.80 lb

Select a Size 0.00

Weight: 6.80 lb/ft

F3126-4140 1/2 x 6
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3126-4140

1/2 x 6
Alloy 4140 Steel Flat - Cold Drawn Annealed

10.20 lb

Select a Size 0.00

Weight: 10.20 lb/ft

F3341-4140 3/4 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3341-4140

3/4 x 1
Alloy 4140 Steel Flat - Cold Drawn Annealed

2.55 lb

Select a Size 0.00

Weight: 2.55 lb/ft

F334112-4140 3/4 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F334112-4140

3/4 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

3.83 lb

Select a Size 0.00

Weight: 3.83 lb/ft

F3342-4140 3/4 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3342-4140

3/4 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

5.10 lb

Select a Size 0.00

Weight: 5.10 lb/ft

F3343-4140 3/4 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3343-4140

3/4 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

7.65 lb

Select a Size 0.00

Weight: 7.65 lb/ft

F3344-4140 3/4 x 4
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3344-4140

3/4 x 4
Alloy 4140 Steel Flat - Cold Drawn Annealed

10.20 lb

Select a Size 0.00

Weight: 10.20 lb/ft

F3346-4140 3/4 x 6
Alloy 4140 Steel Flat - Cold Drawn Annealed

F3346-4140

3/4 x 6
Alloy 4140 Steel Flat - Cold Drawn Annealed

15.30 lb

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Weight: 15.30 lb/ft

F31112-4140 1 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F31112-4140

1 x 1-1/2
Alloy 4140 Steel Flat - Cold Drawn Annealed

5.10 lb

Select a Size 0.00

Weight: 5.10 lb/ft

F312-4140 1 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

F312-4140

1 x 2
Alloy 4140 Steel Flat - Cold Drawn Annealed

6.80 lb

Select a Size 0.00

Weight: 6.80 lb/ft

F313-4140 1 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

F313-4140

1 x 3
Alloy 4140 Steel Flat - Cold Drawn Annealed

10.20 lb

Select a Size 0.00

Weight: 10.20 lb/ft

F314-4140 1 x 4
Alloy 4140 Steel Flat - Cold Drawn Annealed

F314-4140

1 x 4
Alloy 4140 Steel Flat - Cold Drawn Annealed

13.60 lb

Select a Size 0.00

Weight: 13.60 lb/ft

F316-4140 1 x 6
Alloy 4140 Steel Flat - Cold Drawn Annealed

F316-4140

1 x 6
Alloy 4140 Steel Flat - Cold Drawn Annealed

20.40 lb

Select a Size 0.00

Weight: 20.40 lb/ft