| Exporter, Wholesale, Manufacturer | |
| Tehran-South |  |
| +989122003350 | |
- Price :negotiated
spiral spring , Iran
A torsion spring is a mechanical element that stores and releases mechanical energy through twisting motion. Wire diameters range from 0.2 to 15 mm, and free lengths vary from 10 to 500 mm. The maximum torsion angle can reach 360 degrees or more, with torsional stiffness k between 0.5 and 1500 N·m/degree. Common materials include chrome steel, stainless steel, and fatigue-resistant copper or brass alloys. Surfaces can be coated with nickel, zinc, PTFE, or industrial paint for corrosion and wear resistance.
The manufacturing process includes precise wire drawing, CNC or machine coiling according to required angles, heat treatment at 200–400°C for stress relief, and final straightening. Springs are tested for torsion angle and torque. Final steps include corrosion-resistant coating, surface finishing, and quality control with ±1% tolerance. Torsion springs are used in hinges, industrial machinery, medical devices, and precision tools, designed for over one million load cycles.You can order and buy spiral spring from Iran by contacting us through whatsaap and email.
WEBSITE: spiral spring Iran
Materials and Alloys Used in Torsion Spring Manufacturing in iran
Torsion springs require alloys capable of withstanding high shear stress and repeated torque with shear yield strength above 600 megapascals and stable fatigue resistance. A common material is ASTM A228 high carbon steel with a shear modulus of approximately 79 gigapascals and tensile strength up to 2300 megapascals. For heavy duty dynamic applications, 51CrV4 alloy steel according to EN 10089 with hardness between 44 and 52 HRC is selected. In corrosive environments, stainless steels such as AISI 302 or 17-7PH provide improved corrosion resistance and adequate fatigue strength. For operating temperatures above 300 degrees Celsius, nickel based alloys such as Inconel X 750 maintain mechanical stability. Heat treatment including controlled quenching and tempering produces uniform martensitic microstructure and compressive residual stress. Final alloy selection depends on design torque, cycle life above 100000 cycles, and a minimum safety factor of 1.8.
