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Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.
High-Strength Multipurpose 4140 Alloy Steel Rods
- Yield Strength: 130,000 psi
- Hardness: Rockwell C32 (Hard)
- Specifications Met: ASTM A108
Often called ETD-150, these rods are made from a modified version of 4140 alloy steel and have been drawn at high temperatures for excellent strength. Also known as chrome-moly steel, they are used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. They resist 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.
| Dia. | Dia. Tolerance | Heat Treatment | Straightness Tolerance | 1/2 ft. Lg. | 1 ft. Lg. | 2 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | 12 ft. Lg. | |
| 1/2" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 9/16" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 5/8" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 11/16" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 3/4" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 13/16" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 7/8" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 1" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 1 1/4" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 1 1/2" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 1 5/8" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 1 3/4" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 2" | -0.006" to 0" | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 12mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 14mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 15mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 16mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 18mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 20mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 25mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 30mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 35mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 40mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 | ||||||
| 50mm | -0.025mm to 0mm | Hardened | 3/16" per 10 ft. | 0000000 |