301 Stainless Steel Extension Springs Reference Data: 13 catalog-backed reference configurations are available for sizing review. Use the ranges below to compare the starting envelope before submitting a drawing for final quotation.
- Wire diameter
- 0.2-5 mm (0.0079-0.1969 in)
- Outside diameter
- 2.61-39.2 mm (0.1028-1.5433 in)
- Inside diameter
- 1.61-29.2 mm (0.0634-1.1496 in)
- Free length
- 11.88-225.91 mm (0.4677-8.8941 in)
- Spring rate
- 0.014-20.035 N/mm
- Maximum load
- 0.05-261.07 N
Catalog rows are reference configurations for custom design review. Final dimensions, loads, tolerances and material certifications are confirmed during quotation.
Products Represented in This Data
These rows show which product designs are represented in the reference data. Open the matching product for geometry, quotation inputs, application guidance and RFQ details.
- English-Hook Extension Springs6 matching rowsEnglish-Hook Extension Springs Application Guide
- German-Hook Extension Springs4 matching rowsGerman-Hook Extension Springs Application Guide
- Offset-Hook Extension Springs1 matching rowOffset-Hook Extension Springs Application Guide
- Round-Hook Extension Springs2 matching rowsRound-Hook Extension Springs Application Guide
Related Spring Design Guides
Use these guides to define the working dimensions, loads and quotation requirements.
Engineering Material Reference
301 Stainless Steel extension springs reference data combines the published material properties with matching rows from the Spring Finder catalog. Use the product links in the table for product-specific design and quotation details.
| Primary grade | UNS S30100/ EN 1.4310 |
|---|---|
| Standards | ASTM A666; EN 1.4310; JIS SUS301 |
| Corrosion behavior | good general corrosion resistance for indoor, light outdoor and clean industrial environments |
| Temperature note | screening range -196 to 250 C, to be confirmed against final stress and environment |
| Tensile strength | 930-1900 MPa |
| Elastic modulus | 185-200 GPa |
| Shear modulus | 70-77 GPa |
| Density | 7.90 g/cm3 |
Matching Reference Configurations
| Model | Product | Wire / thickness | OD | ID | Free length | Rate (N/mm) | Material | Max load (N) |
|---|---|---|---|---|---|---|---|---|
| SE-020-0030-0119-0566 | English-Hook Extension Springs | 0.2 mm | 3.01 mm | 2.61 mm | 11.88 mm | 0.014 | 301 Stainless Steel | 0.05 |
| SE-030-0038-0213-0486 | German-Hook Extension Springs | 0.3 mm | 3.75 mm | 3.15 mm | 21.29 mm | 0.03 | 301 Stainless Steel | 0.21 |
| SE-040-0027-0205-0510 | German-Hook Extension Springs | 0.4 mm | 2.67 mm | 1.87 mm | 20.46 mm | 0.46 | 301 Stainless Steel | 2.66 |
| SE-050-0026-0130-0474 | Round-Hook Extension Springs | 0.5 mm | 2.61 mm | 1.61 mm | 13.02 mm | 3.851 | 301 Stainless Steel | 11.27 |
| SE-100-0047-0287-0519 | English-Hook Extension Springs | 1 mm | 4.74 mm | 2.74 mm | 28.69 mm | 9.756 | 301 Stainless Steel | 66.2 |
| SE-100-0119-0388-0454 | English-Hook Extension Springs | 1 mm | 11.9 mm | 9.9 mm | 38.82 mm | 0.223 | 301 Stainless Steel | 2.23 |
| SE-120-0084-0491-0490 | English-Hook Extension Springs | 1.2 mm | 8.42 mm | 6.02 mm | 49.06 mm | 1.584 | 301 Stainless Steel | 12.69 |
| SE-120-0139-0544-0423 | English-Hook Extension Springs | 1.2 mm | 13.86 mm | 11.46 mm | 54.4 mm | 0.282 | 301 Stainless Steel | 3.56 |
| SE-180-0157-0920-0426 | Offset-Hook Extension Springs | 1.8 mm | 15.71 mm | 12.11 mm | 92.01 mm | 0.863 | 301 Stainless Steel | 20.02 |
| SE-250-0153-0457-0498 | German-Hook Extension Springs | 2.5 mm | 15.31 mm | 10.31 mm | 45.69 mm | 20.035 | 301 Stainless Steel | 128.32 |
| SE-300-0265-2259-0482 | Round-Hook Extension Springs | 3 mm | 26.47 mm | 20.47 mm | 225.91 mm | 0.908 | 301 Stainless Steel | 46.36 |
| SE-500-0328-2228-0503 | English-Hook Extension Springs | 5 mm | 32.84 mm | 22.84 mm | 222.77 mm | 6.901 | 301 Stainless Steel | 261.07 |
| SE-500-0392-1324-0564 | German-Hook Extension Springs | 5 mm | 39.2 mm | 29.2 mm | 132.36 mm | 7.745 | 301 Stainless Steel | 182.77 |
Using This Material Data
cold forming, stress relief and passivation are common; spring temper and magnetic response must be confirmed by grade and cold work
Need to choose between grades? Material selection belongs in the Materials section rather than this data page. Open Stainless Steel Spring Materials →
CustomSprings Engineering Catalog
Request This Spring
Send your dimensions, quantity and drawing for engineering review.
Frequently Asked Questions
Can CustomSprings manufacture springs in 301 Stainless Steel?
The material is included in the CustomSprings material library for RFQ screening. Final feasibility depends on wire or strip form, size, heat treatment, load, environment and quantity.
Does the material page guarantee certified properties?
No. The material values are engineering reference data. Certified properties or test reports must be specified during production quotation.
What if there are no matching reference rows?
Use the RFQ form with your drawing and application data. The material can still be reviewed as a made-to-drawing option.