Spring Steels
We are the only spring manufacturer in Japan that handles everything from raw materials to products, and we offer a wide range of products, including coil springs, leaf springs, and stabilizer materials.
Main Manufactured Steel Types
| Steel | Chemical Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Cu | Cr | Mo | V | B | |
| SUP9 | 0.52～0.60 | 0.15～0.35 | 0.65～0.95 | 0.030 Below | 0.030 Below | 0.30 Below | 0.65～0.95 | - | - | - |
| SUP9A | 0.56～0.64 | 0.15～0.35 | 0.70～1.00 | 0.030 Below | 0.030 Below | 0.30 Below | 0.70～1.00 | - | - | - |
| SUP10 | 0.47～0.55 | 0.15～0.35 | 0.65～0.95 | 0.030 Below | 0.030 Below | 0.30 Below | 0.80～1.10 | - | 0.15～0.25 | - |
| SUP11A | 0.56～0.64 | 0.15～0.35 | 0.70～1.00 | 0.030 Below | 0.030 Below | 0.30 Below | 0.70～1.00 | - | - | 0.0005～0.0050 |
| SUP12 | 0.51～0.59 | 1.20～1.60 | 0.60～0.90 | 0.030 Below | 0.030 Below | 0.30 Below | 0.60～0.90 | - | - | - |
Uses
Coil Springs, Heavy-Duty Coil Springs, Leaf Springs, Stabilizer Bars
Contact for Special Steel Products
Steel Sales Department