ITW® stands for Induction heated, quenched and Tempered Wire, which is our trade name for high-strength spring steel wire that has been high-frequency heat treated


Uniform strength over the entire length and small strength variation between product coils → Helps to suppress shape variation during spring formin
- 拡大
- Microstructure Photograph


We can also manufacture products outside the standard tensile strength range above. Please consult us separately.
In addition to our SWI series, we also manufacture high-frequency heat-treated spring steel wire of special specifications using SWOSC-B (JIS G 3560) and alloy steel.

Φ3.5~φ17.0
Please consult us for wire diameters other than the above.

