Spring steels
Spring steels are alloy steels designed to store and release elastic energy repeatedly without permanent deformation. They are characterised by a combination of strength, hardness and resilience, making them suitable for springs, clips, washers and other components subjected to repeated flexing or shock.
| Grade | Material no. | C | P | S | Mn |
|---|---|---|---|---|---|
| SAE 1074 | 1.9614 | 0,70-0,80 | 0,03 | 0,05 | 0,50-0,80 |
| SAE 1080 | 1.9615 | 0,75-0,88 | 0,03 | 0,05 | 0,60-0,90 |
Standards covering this category
25- DIN / EN34 grades
- JIS31 grades
- AISI / SAE26 grades
- UNS25 grades
- GOST18 grades
- KS16 grades
- AFNOR15 grades
- BS14 grades
- PN14 grades
- SRPS11 grades
- ISO10 grades
- GB10 grades
- ČSN10 grades
- UNI9 grades
- COPANT8 grades
- BDS8 grades
- STAS7 grades
- ABNT NBR6 grades
- SS5 grades
- STN5 grades
- UNE4 grades
- AS / NZS4 grades
- NBN2 grades
- ASTM1 grade
- MSZ1 grade
Property ranges
14| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| Rm | N/mm² | 620 | 2160 | 18 |
| A80 | % | 12 | 17 | 6 |
| Re | N/mm² | 440 | 1325 | 6 |
| A5 | % | 6 | 21 | 6 |
| Z | % | 25 | 45 | 9 |
| KCU | kJ/m² | 160 | 160 | 1 |
| HB | — | 200 | 321 | 12 |
| HV | — | 180 | 630 | 16 |
| rho | g/cm³ | 7.43 | 7.85 | 34 |
| E | GPa | 191 | 196 | 4 |
| Ac1 | °C | 720 | 765 | 6 |
| Ac3 | °C | 730 | 810 | 6 |
| Ar3 | °C | 770 | 770 | 1 |
| Ar1 | °C | 690 | 700 | 4 |
Derived from 34 grades in this category with a recorded value.
Composition range
13| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| B | % | 0.0008 | 0.0008 | 1 |
| C | % | 0.35 | 1.05 | 52 |
| N | % | 0.007 | 0.007 | 8 |
| Al | % | 0.01 | 0.01 | 5 |
| Si | % | 0.1 | 2 | 50 |
| P | % | 0.02 | 0.05 | 51 |
| S | % | 0.025 | 0.05 | 51 |
| V | % | 0.1 | 0.35 | 4 |
| Cr | % | 0.1 | 1.5 | 35 |
| Mn | % | 0.3 | 1.2 | 52 |
| Ni | % | 0.1 | 0.4 | 20 |
| Cu | % | 0.12 | 0.3 | 20 |
| Mo | % | 0.03 | 0.75 | 14 |
Derived from 52 grades in this category with a recorded value.
Heat treatment
2| Operation | MinTemperature (°C) | MaxTemperature (°C) | Grades |
|---|---|---|---|
| quenching | — | — | 1 |
| tempering | — | — | 1 |