FREE MTR AVAILABLE
FULL LENGTHS
Dimension(s) for this product
- Diameter: 6"
Read More Specifications See Product Guide
Select length below or Custom Cut
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Product Details, 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 |
| Diameter | 6 |
| Max Length | 144 |
| Alloy | 4340 |
| Temper | Annealed |
| Production Method | Hot Rolled Rough Turned |
| 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, AMS -6484(call for availability), ASTM -A29
Weight/Lineal Foot |
||
| 95.98 pounds |
Mechanical Properties |
|
| Property | Value |
| Brinell Hardness 500 kg load | 217 |
| Rockwell Hardness B Scale | 95 |
| Elongation Typical % | 22 |
| Density g/cm^3 | 7 |
| Melting Point °F | 2580 - 2650 |
| Modulus of Elasticity KSI x 10^3 | 27 |
| Reduction of Area % | 50 |
| Specific Heat BTU/lb-°F (32-212F) | 1 |
| Thermal Conductivity BTU-in/hr-ft^2-°F | 309 |
| Tensile Strength KSI | 108 |
| Yield Strength KSI | 68 |
| Shear Strength KSI | 63 |
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
