Material Material | Show |
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Shape Shape |
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 | Hex Bar |
Yield Strength Yield Strength |
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Fabrication Fabrication |
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Tolerance Rating Tolerance Rating |
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Heat Treatment Heat Treatment |
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Heat Treatable Heat Treatable |
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Hardness Hardness |
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Appearance Appearance |
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Elongation Elongation |
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Maximum Hardness After Heat Treatment Maximum HardnessAfter Heat Treatment |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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Hardened Multipurpose 4140 Alloy Steel Hex Bars
- Yield Strength: 105,000 psi
- Hardness: Rockwell C35 (Hard)
- Specifications Met: ASTM A193, ASTM A29
These hex bars are hardened for increased abrasion and impact resistance. They are also stress relieved to reduce the chance of warping during machining. Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of 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 ACTIVITY after your order ships.
| Wd. | Wd. Tolerance | Heat Treatment | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
| 5/8" | -0.01" to 0.01" | Hardened, Stress Relieved | 0000000 | |||
| 3/4" | -0.01" to 0.01" | Hardened, Stress Relieved | 0000000 | |||
| 7/8" | -0.01" to 0.01" | Hardened, Stress Relieved | 0000000 | |||
| 1" | -0.01" to 0.01" | Hardened, Stress Relieved | 0000000 | |||
| 1 1/8" | -0.013" to 0.021" | Hardened, Stress Relieved | 0000000 | |||
| 1 1/4" | -0.013" to 0.021" | Hardened, Stress Relieved | 0000000 | |||
| 1 3/8" | -0.013" to 0.021" | Hardened, Stress Relieved | 0000000 | |||
| 1 1/2" | -0.013" to 0.021" | Hardened, Stress Relieved | 0000000 | |||
| 1 3/4" | -0.016" to 0.031" | Hardened, Stress Relieved | 0000000 | |||
| 2" | -0.016" to 0.031" | Hardened, Stress Relieved | 0000000 |
Multipurpose 4140 Alloy Steel Hex Bars
- Yield Strength: 60,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met: ASTM A108, ASTM A304
Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of 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.
| Wd., mm | Wd. Tolerance, mm | Heat Treatment | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
| 5 | -0.051 to 0 | Annealed (Softened) | 000000 | |||
| 7 | -0.051 to 0 | Annealed (Softened) | 000000 | |||
| 10 | -0.051 to 0 | Annealed (Softened) | 000000 | |||
| 12 | -0.051 to 0 | Annealed (Softened) | 000000 | |||
| 15 | -0.051 to 0 | Annealed (Softened) | 000000 | |||
| 20 | -0.013 to 0 | Annealed (Softened) | 000000 | |||
| 27 | -0.013 to 0 | Annealed (Softened) | 000000 | |||
| 50 | -0.102 to 0 | Annealed (Softened) | 000000 |