Alternative Helical Spring Material:
SS301/1.4310
Good weldability, superior wear resistance and fatigue strength compared to SS304, suitable for temperatures up to 500°F.
SS304
Excellent machinability with high toughness; ideal for applications up to 450°F.
SS316
Enhanced with molybdenum for a corrosion-resistant structure; ideal for applications up to 400°F.
C-276
Hastelloy C-276: Superior corrosion resistance in a wide range of corrosive environments.
Inconel 718
Excellent all-around performance with superior fatigue, radiation, oxidation, and corrosion resistance; ideal for applications between -253°C and 700°C.
Elgiloy
Non-magnetic Co-Cr-Ni-Mo alloy engineered for the harshest acidic and corrosive environments, featuring superior corrosion resistance and high fatigue strength; ideal for applications from -454°C to 800°C.
Helical Spring Size（All sizes are in metric）
| Specification | Diameter (C) | Material Width (B) | Material thickness (A) |
| 2.0×1.5×0.1 | 2.0 | 1.5 | 0.1 |
| 2.5×1.0×0.1 | 2.5 | 1.0 | 0.1 |
| 2.5×1.5×0.1 | 2.5 | 1.5 | 0.1 |
| 2.5×2.0×0.1 | 2.5 | 2.0 | 0.1 |
| 3.0×1.0×0.1 | 3.0 | 1.0 | 0.1 |
| 3.5×1.5×0.2 | 3.5 | 1.5 | 0.2 |
| 4.0×1.5×0.15 | 4.0 | 1.5 | 0.15 |
| 4.5×1.5×0.15 | 4.5 | 1.5 | 0.15 |
| 5.0×2.0×0.15 | 5.0 | 2.0 | 0.15 |
| 5.0×2.0×0.15 | 5.0 | 2.0 | 0.15 |
| 5.5×1.5×0.15 | 5.5 | 1.5 | 0.15 |
| 6.0×2.5×0.15 | 6.0 | 2.5 | 0.15 |
| 7.0×2.5×0.15 | 7.0 | 2.5 | 0.15 |
| 7.5×2.5×0.15 | 7.5 | 2.5 | 0.15 |
| 8.0×2.5×0.15 | 8.0 | 2.5 | 0.15 |
| 9.0×3.5×0.15 | 9.0 | 3.5 | 0.15 |
| 11.7×3.5×0.25 | 11.7 | 3.5 | 0.25 |
| 15.0×4.0×0.3 | 15.0 | 4.0 | 0.3 |
| 17.0×4.0×0.3 | 17.0 | 4.0 | 0.3 |
Why Choose H-Type Helial spring?
- Reliable sealing performance in critical vacuum or low-pressure environments.
- Long service life due to superior fatigue resistance of stainless steel materials.
- Reduced maintenance and downtime thanks to the consistent spring load and minimal deflection.
- Customizable for your application – we can provide different materials and sizes to match your sealing requirements.
QZSEALS – Your Trusted Seal Supplier
At QZSEALS, we specialize in high-quality spring energized seals and helical spring. Our H type (O type) helical spring is engineered to provide maximum sealing reliability, long service life, and exceptional performance in low-pressure and vacuum applications.
Contact us today to request a quote for helical spring or custom sealing solutions!
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