4140 Annealed Cold Rolled Round Bar
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Description
4140 cold rolled round bars are an excellent candidate for most processing techniques. 4140 annealed cold roll bars is a high strength and abrasion resistant alloy. Extreme size accuracy, straightness and concentricity combine to minimize wear in high speed applications. Commonly used in gears, shafts, axles, bolts, studs and machine parts. Found within the automotive, defense, agriculture, aerospace, and oil and gas industries.
Features
ASTM
ASTM A108
Characteristics
4140 (Annealed)
High strength. Good wear & abrasion resistance. Heat treatable.
High strength. Good wear & abrasion resistance. Heat treatable.
Alloy
4140
Specifications
CHEMICAL COMPOSITION |
|
| Element | Percentage |
| C | 0.38 - 0.43 |
| Cr | 0.8 - 1.1 |
| Fe | 96.785 - 97.84 |
| Mo | 0.15 - 0.25 |
| Mn | 0.7 - 1 |
| P | 0.035 max |
| Si | 0.15 - 0.3 |
| S | 0.04 max |
MECHANICAL INFORMATION |
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| Imperial | Metric | |
| Density | 0.284 lb/in3 | 7.85 g/cc |
| Ultimate Tensile Strength | 165,000psi | 1,140 MPa |
| Yield Tensile Strength | 140,000psi | 965 MPa |
| Hardness Brinell | 228 |
| Hardness Rockwell | B98 |
| Temper | Annealed |
| Production Method | Cold Finish |
| The provided chemical compositions and mechanical properties are general approximations. Please contact our Customer Service Department for material test reports. Contact Us |
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Available Sizes
AVAILABLE SIZES |
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| Size | Length | Weight (lbs/ft) |
| 3/16" | 144.00" | 0.094 |
| 1/4" | 144.00" | 0.167 |
| 3/8" | 144.00" | 0.376 |
| 1/2" | 144.00" | 0.668 |
| 9/16" | 144.00" | 0.840 |
| 5/8" | 144.00" | 1.043 |
| 3/4" | 144.00" | 1.502 |
| 7/8" | 144.00" | 2.045 |
| 15/16" | 144.00" | 2.347 |
| 1" | 144.00" | 2.670 |
| 1-1/4" | 144.00" | 4.173 |
| 1-1/2" | 144.00" | 6.008 |
| 1-3/4" | 144.00" | 8.178 |
| 2" | 144.00" | 10.680 |
| 3" | 144.00" | 24.030 |