Helical Spring
$7.08 – $92.23
per inch
Spring mandrel size (spring inner diameter) equal and bigger than 4.75mm is defined as Helical-spring
Request A Quote for bulk orders.
See “Micro-Springs” listing for smaller mandrel sizes.
Spring mandrel size (spring inner diameter) equal and bigger than 4.75mm is defined as Helical-spring. Available mandrel sizes are 4.75mm, 6mm, 8mm, 9.5mm, 12.7mm, 16mm, 19mm, 22.2mm, 25.4mm
The listing price is for per inch. If multiple units are ordered, a continuous length will be sent out unless otherwise stated in the comments box.
For smaller Springs, please check “Micro Springs” listings.
For special designs or sizes, please feel free to contact us: info@kelloggsresearchlabs.com.
Transition Temperature |
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| Tag | Transition Temperature(°C/°F) | Effect |
| SuperElastic | -15/5 | Austenitic at room temperature |
| Air Temp | 20/70 | Martensitic in a cool environment(freezer, ice water…) and change to set shape when brought to room temp. |
| Body Temp | 35/95 | Martensitic in a cool environment(freezer, ice water…) and change to set shape when held in hands. |
| Standard Temp | 45/115 | Martensitic at room temperature and change to set shape when heat to 45°C and above. |
| High Temp | 80/180 | Martensitic at elevated temperatures and change to set shape when heat to 80°C and above. |
| Note: Heat can be generated electrically. | ||
Pitch |
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Pitch is the distance between the center of two consecutive wraps of wire.
Mandrel SizeThis determines the inside diameter of the spring. |
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| Wire Size(mm) | 0.15, 0.25, 0.4, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 5 |
|---|---|
| Mandrel Size | 4.75mm, 6mm, 8mm, 9.5mm, 12.7mm, 14.2mm, 16mm, 19mm, 22.2mm, 25.4mm |
| Pitch | Tight, wire size x 2, wire size x3, wire size x4 |
| Transition Temperature(°C) | -15C, 20C, 35C, 45C, 80C |
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