4140 Alloy Round Bar

4140 Alloy Round Bar

4140 Alloy Steel Round, 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 Round responds well to heat-treatment and is relatively easy to machine in the annealed condition. 4140 Alloy Steel Round 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 Round, Alloy steel shaft
Applications: shafts, axles, bolts, sprockets, piston rods, rams, etc.
Workability: Moderate to Weld, Cut and Machine.
Mechanical Properties: Brinell = 197-212, Tensile = 95ksi,
How is it Measured? Diameter (A) 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!

Product / Size / Weight / Stock

Product / Size / Weight / Stock
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Item Size & Description

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R214-4140 1/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R214-4140

1/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

1.00 lb/ft

Select a Size 0.00

Weight: 1.00 lb/ft

R238-4140 3/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R238-4140

3/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

0.38 lb/ft

Select a Size 0.00

Weight: 0.38 lb/ft

R212-4140 1/2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R212-4140

1/2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

0.66 lb/ft

Select a Size 0.00

Weight: 0.66 lb/ft

R258-4140 5/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R258-4140

5/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

1.04 lb/ft

Select a Size 0.00

Weight: 1.04 lb/ft

R234-4141 3/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R234-4141

3/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

1.50 lb/ft

Select a Size 0.00

Weight: 1.50 lb/ft

R278-4140 7/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R278-4140

7/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

2.05 lb/ft

Select a Size 0.00

Weight: 2.05 lb/ft

R21516-4140 15/16 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R21516-4140

15/16 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

2.50 lb/ft

Select a Size 0.00

Weight: 2.50 lb/ft

R21-4140 1 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R21-4140

1 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

2.67 lb/ft

Select a Size 0.00

Weight: 2.67 lb/ft

R2118-4140 1-1/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2118-4140

1-1/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

3.38 lb/ft

Select a Size 0.00

Weight: 3.38 lb/ft

R2114-4140 1-1/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2114-4140

1-1/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

4.18 lb/ft

Select a Size 0.00

Weight: 4.18 lb/ft

R2138-4140 1-3/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2138-4140

1-3/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

5.04 lb/ft

Select a Size 0.00

Weight: 5.04 lb/ft

R2112-4140 1-1/2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2112-4140

1-1/2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

6.01 lb/ft

Select a Size 0.00

Weight: 6.01 lb/ft

R2158-4140 1-5/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2158-4140

1-5/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

7.05 lb/ft

Select a Size 0.00

Weight: 7.05 lb/ft

R2134-4140 1-3/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2134-4140

1-3/4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

8.18 lb/ft

Select a Size 0.00

Weight: 8.18 lb/ft

R2178-4140 1-7/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2178-4140

1-7/8 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

9.39 lb/ft

Select a Size 0.00

Weight: 9.39 lb/ft

R22-4140 2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R22-4140

2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

10.68 lb/ft

Select a Size 0.00

Weight: 10.68 lb/ft

R2212-4140 2-1/2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R2212-4140

2-1/2 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

16.69 lb/ft

Select a Size 0.00

Weight: 16.69 lb/ft

R23-4140 3 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R23-4140

3 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

24.03 lb/ft

Select a Size 0.00

Weight: 24.03 lb/ft

R24-4140 4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

R24-4140

4 inch
Alloy 4140 Steel Round - Cold Drawn Annealed

43.82 lb/ft

Select a Size 0.00

Weight: 43.82 lb/ft