Material Type: Valve Spring
Material Group: Carbon Steel Wire
Valve springs are manufactured from cold-drawn, heat-treated carbon steel wire, giving the material excellent strength, durability, and fatigue resistance. The process also produces uniform tensile properties and a smooth surface finish, allowing the springs to perform reliably in high-stress environments
Valve spring wire provides the strength and elasticity needed for springs operating under repeated stress and mechanical cycling. Key material properties include:
These characteristics make valve spring material suitable for compression, extension, and torsion springs used in valve assemblies and other mechanical systems requiring consistent spring force and durability.
Available Valve Springs Material Forms
Wire: Yes Strip: No Sheet/Plate: No
Engineering Data
| E Mpa | 207,000 | Min Size (in) | 0.050 |
| E psi | 30,000,000 | Max Size (in) | 0.250 |
| G Mpa | 79,300 | Min Size (mm) | 1.300 |
| G psi | 11,500,000 | Max Size (in) | 6.350 |
| Density g/cm3 | 7.860 | Surface Min | a |
| Density lb/in3 | 0.284 | Max Temp °C | 150 |
| Conductivity | 7 | Max Temp °F | 300 |
All materials specifications are provided for general reference purposes only.
Valve Springs Notes:
| E Mpa | Young's Modulus | These factors can vary with cold work, heat treating and operational stress. | |
| E psi | |||
| G Mpa | Modulus of Rigidity | ||
| G psi | |||
| Conductivity | % IACS | ||
| Surface Min | Typical Surface Quality | a | Maximum defect depth: 0 to 0.5% of d or t |
| b | Maximum defect depth: 1.0% of d or t | ||
| c | Defect depth:less that 3.5% of d or t | ||
| Min Size | Sizes commonly available for wire or strip | Special sizes may be available at additional cost. | |
| Max Size | |||
| Max Temp | Maximum service temperature | May vary due to operating stress | |
As an experienced valve spring manufacturer, we also offer spring design assistance to help you enhance your spring’s functionality. Whether you need guidance in design or have questions, our experts are ready to assist
Send us your CAD drawing or request a quote, and our engineering team will help you develop the right custom valve spring for your application.
