Description:
Custom-made compression coil spring made by stainless steel.Compression Coil SpringsMade By WireStainlessSteel
about stainless steel spring
We have adopted"SUS304-WPB", "SUS316-WPA" and"SUS631J1-WPC" as stainless steelmaterial.
These stainless steels havebeen defined by the JIS* as "stainless steel wire forsprings".
(*JIS: JapaneseIndustrial Standards )
Chemicalcomposition
SUS304 is called "18-8 stainless steel", becauseit contains 18% Chromium and 8% Nickel.
SUS631 is also called "17-7 ph stainless steel",because of the same reason.
| C | Si | Mn | P | S | Ni | Cr | Al | Fe | |
SUS304-WPB | 0.08 max. | 1.00 max. | 2.00 max. | 0.045 max. | 0.030 max. | 8.00- 10.50 | 18.00- 20.00 | - | Bal. |
SUS316-WPA | 0.08 max. | 1.00 max. | 2.00 max. | 0.045 max. | 0.030 max. | 10.00- 14.00 | 16.00- 18.00 | - | Bal. |
SUS631-WPC | 0.09 max. | 1.00 max. | 1.00 max. | 0.040 max. | 0.030 max. | 7.00- 8.50 | 16.00- 18.00 | 0.75- 1.50 | Bal. |
Heat& Surface treatment
Heat treatmentaiming at stress relief is carried out for SUS304and SUS316 stainless steels.
Age-hardeningis only carried out about SUS631.
Youcan select the passivationtreatment as a surfacetreatment.
Manufacturingcondition
(a) Wire diameter: 0.2 to 8 mm
(b) Mean coil diameter: 4 to 22 times wire diameter
(c) Coil ends: Ground ends available
(d) Quantity: 1 to 5000 per month
(e) Dimensional and Load tolerance: JIS B2704 Grades 1 to3
(f) Fob price: Depends on quantity
Manufacturing Process < from automatic machine production to handmade > | |
Packagedstate
Cardboardpackaging with plastic bag and bubble wrap.
Qualitycertification
We have obtained thecertification of ISO9001.
Saitama plant
Saitamaplant is manufacturing various springs as our mainplant.
Iwate plant
