18mm Alloy Steel Round Bar 4140- TGP Metric 72" Length [+/- 2"] -Part #: 24555
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1
Dimension(s) for this product
- Diameter: 18 mm
Material Meets These Standard(s):
ASTM-A322,
ASTM-A193,
ASTM-A295,
ASTM-A434,
ASTM-A29
Read More Specifications See Product Guide
Read More Specifications See Product Guide
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QTY
$328.54
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$328.54
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1
Product Details, Specifications, and Technical Information
Alloy Steel Round Bar 4140 Annealed Cold Finish, also referred to as Chromoly Steel, is known for strength, resistance to fracturing, abrasion, and impact in high stress applications. 4140 is popular for a wide range of applications and is ductile and easily machined in the annealed state. It is commonly used for gears, shafts, spindles, fixtures, bolts, valves, sprockets, pistons, and collars in various high-stress and heavy-duty applications.
| Dimension Name | Specification |
| Diameter | 18 |
| Max Length | 72 |
| Alloy | 4140 |
| Temper | Annealed |
| Production Method | TGP |
| Eniteo Vendor ID | 1961 |
| MTR Availability | Yes |
| Material | Alloy Steel |
| Shape | Bar-Round |
| Custom Cut Warehouse | 0 |
Material Specifications
This material meets the following specs: ASTM -A322, ASTM -A193, ASTM -A295, ASTM -A434, ASTM -A29
| Weight/Lineal Foot | ||
| 7.95 pounds |
Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.
| Mechanical Properties | |
| Property | Value |
| Density g/cm^3 | 8 |
| Brinell Hardness 500 kg load | 197 |
| Rockwell Hardness B Scale | 92 |
| Ultimate Tensile Strength KSI | 95 |
| Yield Tensile Strength KSI | 60 |
| Elongation % in 2 in. | 26 |
| Melting Point °F | 2580 - 2650 |
| Shear Strength KSI | 69 |
| Electrical Conductivity % IACS | 7 |
| Machinability % | 66 |
| Chemistry Information: 4140 Alloy Steel | |
| Element | Percentage |
| C | 0.38 - 0.43 |
| Cr | 0.8 - 1.1 |
| Fe | 96.785 - 97.84 |
| Mn | 0.7 - 1 |
| Mo | 0.15 - 0.25 |
| P | 0.035 max |
| S | 0.04 max |
| Si | 0.15 - 0.3 |
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