3.5" Alloy Steel Round Bar 4340-Normalized Rough Turned -Part #: 7408
FREE MTR AVAILABLE
FULL LENGTHS
Dimension(s) for this product
- Diameter: 3.5"
Read More Specifications See Product Guide
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OVERVIEW SPECIFICATIONS AND TECHNICAL INFORMATION
Alloy Steel Round Bar 4340 Normalized Rough Turned has high strength, toughness, wear resistance, and fatigue strength. It can be machined in all states other than hardened and it is easily welded. Additionally, 4340 can be cold worked easily in the annealed state. It is typically used in military aircraft, automotive systems, hydraulic parts, machine tools, and a steel crankshafts.
Dimension Name |
Specification |
| Alloy | 4340 |
| Temper | Normalized |
| Production Method | Rough Turned |
| Diameter | 3.5 |
| Max Length | 144 |
| MTR Availability | Yes |
| Full Length | true |
| Material | Alloy Steel |
| Shape | Bar-Round |
| Custom Cut Warehouse | 1 |
This material meets the following specs: ASTM -A322, AMS -6415, ASTM -A108, AMS -6484, AMS/MIL -S-5000
Weight/Lineal Foot |
||
| 32.66 pounds |
Mechanical Properties |
|
| Property | Value |
| Brinell hardness | 363 |
| Rockwell Hardness B Scale | 100 |
| Elongation Typical % | 12 |
| Density g/cm^3 | 8 |
| Melting Point °F | 2580 - 2650 |
| Modulus of Elasticity KSI x 10^3 | 29 |
| Specific Heat BTU/lb-°F (32-212F) | 1 |
| Thermal conductivity BTU-in/hr-ft^2-°F | 8 |
| Ultimate Tensile Strength KSI | 190 |
| Yield KSI | 120 |
| Shear Strength KSI | 110 |
| Reduction of Area % | 36 |
Chemistry Information: 4340 Alloy Steel |
|
| Element | Percentage |
| C | 0.37 - 0.43 |
| Cr | 0.8 |
| Fe | 96 |
| Mn | 0.7 |
| Ni | 1.83 |
| P | 0.035 max |
| S | 0.04 max |
| Si | 0.23 |
Dimensions
