Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.
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Oversized Multipurpose 4140 Alloy Steel Sheets and Bars
- Yield Strength: 60,000 psi
- Hardness: Rockwell C15 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C32
- Fabrication: Hot Rolled
- Specifications Met: ASTM A829
The thickness is oversized for finishing to your exact requirements. This versatile alloy steel is used for many parts, such as molds and structural supports. Also called chrome-moly steel, it resists fracturing from repeated stress. These ground sheets and bars have undergone a process called decarburization, which removes residue created during manufacturing. As a result, they have a uniform surface that’s good for machining, heat treating for hardening and wear resistance, and finishing. These sheets and bars adhere to strict ASTM A829 standards for manufacturing and performance.
Note: Sheets and bars may be made from either 4140 or 4142 alloy steel. They are interchangeable in most applications.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| Thick. | Thick. Tolerance | Heat Treatment | Mechanical Finish | Flatness Tolerance | Each | |
6" × 6" | ||||||
|---|---|---|---|---|---|---|
| 0.188" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 0.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.313" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 00000 |
| 0.375" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.625" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.75" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 1" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 1.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 1.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 2" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 3" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
6" × 12" | ||||||
| 0.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.375" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.625" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.75" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 1" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
6" × 24" | ||||||
| 0.188" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 0.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.313" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 0.375" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.625" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.75" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 2" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 3" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
8" × 8" | ||||||
| 0.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.375" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.625" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.75" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 1" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
10" × 12" | ||||||
| 0.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 00000 |
| 0.375" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.625" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.75" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
12" × 12" | ||||||
| 0.188" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 0.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.313" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 0.375" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.625" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 0.75" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 1.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 0000000 | 000000 |
| 2" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 3" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
24" × 48" | ||||||
| 0.25" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
| 0.5" | 0.02" to 0.045" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 00000000 | 000000 |
To Order: Please specify length in increments of 0.25" within the range listed.
| Wd. | Heat Treatment | Mechanical Finish | Flatness Tolerance | Choose a Length | Per Inch | |
1/2" Thick. (0.02" to 0.04" Tolerance) | ||||||
|---|---|---|---|---|---|---|
| 1" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
| 1 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 3" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 4" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
3/4" Thick. (0.02" to 0.04" Tolerance) | ||||||
| 1" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 1 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 3" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 4" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
1" Thick. (0.02" to 0.04" Tolerance) | ||||||
| 1" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 1 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 3" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
| 4" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
1 1/4" Thick. (0.02" to 0.04" Tolerance) | ||||||
| 1 1/4" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 1 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 3" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
| 4" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
1 1/2" Thick. (0.02" to 0.04" Tolerance) | ||||||
| 1 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 0000 |
| 2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
| 2 1/2" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
| 3" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
| 4" | Annealed (Softened) | Ground | 1/16" per 5 ft. | 13"-90" | 00000000 | 00000 |
Splined Rotary Shafts
Good for hydraulic systems, machine tools, and other high-torque applications, these shafts have teeth that transmit high rotational loads. Compared to keyed shafts, they last longer and handle higher torque. They’re also better than keyed shafts for applications requiring frequent disassembly or adjustments because you can move bushings along their splines.
Parallel splines have large, straight-sided teeth that resemble machine keys and transmit more torque than involute spline teeth. These splines are known as straight splines.
Straight ends have a smooth, round finish instead of splines. Use this end with gears, sprockets, and bearings.
Bushings act as a surface to transmit rotary motion or to position a load along the length of the shaft. If welded into place, these bushings can act as a coupler, connecting two splined shafts.
For technical drawings and 3-D models, click on a part number.
Shafts | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Splined End | Sleeve Bushings | ||||||||||
| Dia. | Lg. | No. of Splines | Straight End Dia. | Lg. | Edge Type | Hardness Rating | Hardness | Each | Each | ||
Inch—1045 Carbon Steel | |||||||||||
| 3/4" | 12" | 6 | 1" | 48" | Chamfered | Medium | Rockwell C15 | 000000 | 0000000 | 0000000 | 000000 |
| 1" | 12" | 6 | 1 1/2" | 48" | Chamfered | Medium | Rockwell C15 | 000000 | 000000 | 0000000 | 00000 |
| 1 1/2" | 12" | 6 | 2" | 48" | Chamfered | Medium | Rockwell C15 | 000000 | 000000 | 0000000 | 000000 |