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Tight-Tolerance Hardened Multipurpose 4140 Alloy Steel Sheets and Bars
Also known as flat stock, the thickness on these sheets and bars is held to a tight tolerance. They are hardened for increased abrasion and impact resistance. Also known as chrome-moly steel, this versatile 4140 alloy steel is used for many parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.
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.
Sheets
- Yield Strength: 121,000 psi
- Hardness: Rockwell C27 (Hard)
- Specifications Met: ASTM A322, ASTM A29
| Thick. | Thick. Tolerance | Mechanical Finish | Each | |
3" × 3" | ||||
|---|---|---|---|---|
| 1/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/16" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 3/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 1/2" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 5/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 3/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 1" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 1 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 1 1/2" | -0.002" to 0.002" | Precision Ground | 0000000 | 000000 |
6" × 6" | ||||
| 1/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 3/16" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 3/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000 |
| 1/2" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 5/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1 1/2" | -0.002" to 0.002" | Precision Ground | 0000000 | 000000 |
6" × 12" | ||||
| 1/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/16" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/2" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 5/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1 1/2" | -0.002" to 0.002" | Precision Ground | 0000000 | 000000 |
12" × 12" | ||||
| 1/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/16" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/2" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 5/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1 1/2" | -0.002" to 0.002" | Precision Ground | 0000000 | 00000000 |
12" × 24" | ||||
| 1/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/16" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/2" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 5/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000000 |
| 1" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000000 |
| 1 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000000 |
| 1 1/2" | -0.002" to 0.002" | Precision Ground | 0000000 | 00000000 |
12" × 36" | ||||
| 1/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/16" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 3/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 1/2" | -0.001" to 0.001" | Precision Ground | 0000000 | 000000 |
| 5/8" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000000 |
| 3/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000000 |
| 1" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000000 |
| 1 1/4" | -0.001" to 0.001" | Precision Ground | 0000000 | 00000000 |
| 1 1/2" | -0.002" to 0.002" | Precision Ground | 0000000 | 00000000 |
Bars
- Yield Strength: 121,000 psi
- Hardness: Rockwell C27 (Hard)
- Specifications Met: ASTM A322, ASTM A29
| Wd. | Mechanical Finish | 1/2 ft. Lg. | 1 ft. Lg. | 1 1/2 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
3/32" Thick. (-0.002" to 0.002" Tolerance) | |||||||
|---|---|---|---|---|---|---|---|
| 1/2" | Precision Ground | 00000000 | |||||
| 3/4" | Precision Ground | 00000000 | |||||
| 1" | Precision Ground | 00000000 | |||||
| 1 1/2" | Precision Ground | 00000000 | |||||
| 2" | Precision Ground | 00000000 | |||||
| 3" | Precision Ground | 00000000 | |||||
| 4" | Precision Ground | 00000000 | |||||
1/8" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 1/8" | Precision Ground | 00000000 | |||||
| 1/4" | Precision Ground | 00000000 | |||||
| 3/8" | Precision Ground | 00000000 | |||||
| 1/2" | Precision Ground | 0000000 | |||||
| 3/4" | Precision Ground | 0000000 | |||||
| 1" | Precision Ground | 0000000 | |||||
| 1 1/4" | Precision Ground | 0000000 | |||||
| 1 1/2" | Precision Ground | 0000000 | |||||
| 2" | Precision Ground | 0000000 | |||||
| 2 1/2" | Precision Ground | 0000000 | |||||
| 3" | Precision Ground | 0000000 | |||||
| 4" | Precision Ground | 0000000 | |||||
| 5" | Precision Ground | 0000000 | |||||
| 6" | Precision Ground | 0000000 | |||||
3/16" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 3/16" | Precision Ground | 0000000 | |||||
| 3/8" | Precision Ground | 00000000 | |||||
| 1/2" | Precision Ground | 0000000 | |||||
| 3/4" | Precision Ground | 0000000 | |||||
| 1" | Precision Ground | 0000000 | |||||
| 1 1/4" | Precision Ground | 0000000 | |||||
| 1 1/2" | Precision Ground | 0000000 | |||||
| 2" | Precision Ground | 0000000 | |||||
| 2 1/2" | Precision Ground | 0000000 | |||||
| 3" | Precision Ground | 0000000 | |||||
| 4" | Precision Ground | 0000000 | |||||
| 5" | Precision Ground | 0000000 | |||||
| 6" | Precision Ground | 0000000 | |||||
1/4" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 1/4" | Precision Ground | 0000000 | |||||
| 3/8" | Precision Ground | 00000000 | |||||
| 1/2" | Precision Ground | 0000000 | |||||
| 3/4" | Precision Ground | 0000000 | |||||
| 1" | Precision Ground | 0000000 | |||||
| 1 1/4" | Precision Ground | 0000000 | |||||
| 1 1/2" | Precision Ground | 0000000 | |||||
| 2" | Precision Ground | 0000000 | |||||
| 2 1/2" | Precision Ground | 0000000 | |||||
| 3" | Precision Ground | 0000000 | |||||
| 4" | Precision Ground | 0000000 | |||||
| 5" | Precision Ground | 0000000 | |||||
| 6" | Precision Ground | 0000000 | |||||
| 8" | Precision Ground | 0000000 | |||||
| 10" | Precision Ground | 0000000 | |||||
5/16" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 5/16" | Precision Ground | 000000 | |||||
| 1/2" | Precision Ground | 000000 | |||||
| 3/4" | Precision Ground | 000000 | |||||
| 1" | Precision Ground | 000000 | |||||
| 1 1/4" | Precision Ground | 000000 | |||||
| 1 1/2" | Precision Ground | 000000 | |||||
| 2" | Precision Ground | 000000 | |||||
| 2 1/2" | Precision Ground | 0000000 | |||||
| 3" | Precision Ground | 0000000 | |||||
| 4" | Precision Ground | 0000000 | |||||
| 5" | Precision Ground | 0000000 | |||||
| 6" | Precision Ground | 0000000 | |||||
| 8" | Precision Ground | 0000000 | |||||
| 10" | Precision Ground | 00000000 | |||||
3/8" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 3/8" | Precision Ground | 0000000 | |||||
| 1/2" | Precision Ground | 0000000 | |||||
| 3/4" | Precision Ground | 0000000 | |||||
| 1" | Precision Ground | 0000000 | |||||
| 1 1/4" | Precision Ground | 0000000 | |||||
| 1 1/2" | Precision Ground | 0000000 | |||||
| 2" | Precision Ground | 0000000 | |||||
| 2 1/2" | Precision Ground | 0000000 | |||||
| 3" | Precision Ground | 0000000 | |||||
| 4" | Precision Ground | 0000000 | |||||
| 5" | Precision Ground | 0000000 | |||||
| 6" | Precision Ground | 0000000 | |||||
| 8" | Precision Ground | 00000000 | |||||
| 10" | Precision Ground | 00000000 | |||||
1/2" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 1/2" | Precision Ground | 0000000 | |||||
| 3/4" | Precision Ground | 0000000 | |||||
| 1" | Precision Ground | 0000000 | |||||
| 1 1/4" | Precision Ground | 0000000 | |||||
| 1 1/2" | Precision Ground | 0000000 | |||||
| 2" | Precision Ground | 0000000 | |||||
| 2 1/2" | Precision Ground | 0000000 | |||||
| 3" | Precision Ground | 0000000 | |||||
| 4" | Precision Ground | 0000000 | |||||
| 5" | Precision Ground | 0000000 | |||||
| 6" | Precision Ground | 0000000 | |||||
| 8" | Precision Ground | 00000000 | |||||
| 10" | Precision Ground | 00000000 | |||||
5/8" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 5/8" | Precision Ground | 00000000 | |||||
| 3/4" | Precision Ground | 00000000 | |||||
| 1" | Precision Ground | 00000000 | |||||
| 1 1/2" | Precision Ground | 00000000 | |||||
| 2" | Precision Ground | 00000000 | |||||
| 3" | Precision Ground | 00000000 | |||||
| 4" | Precision Ground | 00000000 | |||||
| 6" | Precision Ground | 00000000 | |||||
| 8" | Precision Ground | 00000000 | |||||
| 10" | Precision Ground | 00000000 | |||||
3/4" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 3/4" | Precision Ground | 0000000 | |||||
| 1" | Precision Ground | 0000000 | |||||
| 1 1/2" | Precision Ground | 0000000 | |||||
| 2" | Precision Ground | 0000000 | |||||
| 3" | Precision Ground | 0000000 | |||||
| 4" | Precision Ground | 0000000 | |||||
| 6" | Precision Ground | 0000000 | |||||
| 8" | Precision Ground | 00000000 | |||||
| 10" | Precision Ground | 00000000 | |||||
1" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 1" | Precision Ground | 00000000 | |||||
| 1 1/4" | Precision Ground | 00000000 | |||||
| 1 1/2" | Precision Ground | 00000000 | |||||
| 2" | Precision Ground | 00000000 | |||||
| 2 1/2" | Precision Ground | 00000000 | |||||
| 3" | Precision Ground | 00000000 | |||||
| 4" | Precision Ground | 00000000 | |||||
| 6" | Precision Ground | 00000000 | |||||
| 8" | Precision Ground | 00000000 | |||||
| 10" | Precision Ground | 00000000 | |||||
1 1/2" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 1 1/2" | Precision Ground | 00000000 | |||||
| 2" | Precision Ground | 00000000 | |||||
| 4" | Precision Ground | 00000000 | |||||
2" Thick. (-0.002" to 0.002" Tolerance) | |||||||
| 2" | Precision Ground | 00000000 | |||||
| 4" | Precision Ground | 00000000 | |||||
| Thick. | Thick. Tolerance | Wd. | Length | Mechanical Finish | Each | |
| 1" | -0.002" to 0.002" | 2 1/2" | 3" | Precision Ground | 000000000 | 000000 |
| 1 1/2" | -0.002" to 0.002" | 2" | 3" | Precision Ground | 00000000 | 000000 |
| 2" | -0.002" to 0.002" | 2" | 3" | Precision Ground | 000000000 | 00000 |
| 2" | -0.002" to 0.002" | 3" | 3" | Precision Ground | 000000000 | 000000 |
| 2" | -0.002" to 0.002" | 4" | 3" | Precision Ground | 000000000 | 000000 |
| 3" | -0.002" to 0.002" | 3" | 3" | Precision Ground | 000000000 | 000000 |
| 3" | -0.002" to 0.002" | 3" | 6" | Precision Ground | 00000000 | 000000 |
Hardened Multipurpose 4140 Alloy Steel Bars
- Yield Strength: 93,000 psi
- Hardness: Rockwell C30 (Hard)
- Fabrication: Hot Rolled
- Specifications Met: ASTM A322
The surface of these bars is hardened to increase their resistance to impacts and abrasion. Also known as chrome-moly steel, which is used to create molds, structural supports, and other parts. It resists fracturing from repeated stress. These bars have been manufactured to meet ASTM standards for quality and performance.
Note: 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.
| Wd. | Thick. Tolerance | Mechanical Finish | 1 1/2 ft. Lg. | 3 ft. Lg. | |
1/8" Thick. | |||||
|---|---|---|---|---|---|
| 1/2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 3/4" | 0.01" to 0.015" | Ground | 0000000 | ||
| 1" | 0.01" to 0.015" | Ground | 0000000 | ||
| 1 1/4" | 0.01" to 0.015" | Ground | 0000000 | ||
| 1 1/2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 2" | 0.01" to 0.015" | Ground | 0000000 | ||
1/4" Thick. | |||||
| 1/2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 3/4" | 0.01" to 0.015" | Ground | 0000000 | ||
| 1" | 0.01" to 0.015" | Ground | 0000000 | ||
| 1 1/2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 3" | 0.01" to 0.015" | Ground | 0000000 | ||
| 6" | 0.01" to 0.015" | Ground | 0000000 | ||
1/2" Thick. | |||||
| 1/2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 3/4" | 0.01" to 0.015" | Ground | 0000000 | ||
| 1" | 0.01" to 0.015" | Ground | 0000000 | ||
| 1 1/2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 2" | 0.01" to 0.015" | Ground | 0000000 | ||
| 3" | 0.01" to 0.015" | Ground | 0000000 | ||
| 6" | 0.01" to 0.015" | Ground | 0000000 | ||