Login
Our 3D CAD supplier models have been moved to 3Dfindit.com, the new visual search engine for 3D CAD, CAE & BIM models.
You can log in there with your existing account of this site.
The content remains free of charge.
Top Links
Spring steel
Spring steel
Licensed under Creative Commons Attribution 2.5 se (Riksantikvarieämbetet / Pål-Nils Nilsson, CC-BY).
| This article needs additional citations for verification. (March 2009) (Learn how and when to remove this template message) |
| Steels and other iron–carbon alloy phases |
|---|
| Microstructures |
| Classes |
| Other iron-based materials |
Spring steel is a name given to a wide range of steels[1] used in the manufacture of springs, prominently in automotive and industrial suspension applications. These steels are generally low-alloy Manganese, medium-carbon steel or high-carbon steel with a very high yield strength. This allows objects made of spring steel to return to their original shape despite significant deflection or twisting.
Contents
Grades
Many grades of steel can be hardened and tempered to suit application as a spring; however, some steels exhibit more desirable characteristics for spring applications.
| SAE grade (ASTM grade) |
Composition | Yield strength | Hardness (HRC) | Comments | |
|---|---|---|---|---|---|
| Typical | Maximum | ||||
| 1074/1075[2] | 0.70–0.80% C, 0.50–0.80% Mn, max. 0.030% P, max. 0.035% S[3] | 62–78 ksi (430–530 MPa)[4] | 44–50[5] | 50 | Scaleless blue steel |
| 1080 (A228) | 0.7–1.0% C, 0.2–0.6% Mn, 0.1–0.3% Si[6] | Piano wire, music wire | |||
| 1095 (A684)[2] | 0.90–1.03% C, 0.30–0.50% Mn, max. 0.030% P, max. 0.035% S[7] | 60–75 ksi (413–517 MPa), annealed | 48–51[5] | 59 | Blue spring steel |
| 5160 (A689)[8] | 0.55–0.65% C, 0.75–1.00% Mn, 0.70–0.90% Cr[9] | 97 ksi (669 MPa) | 63 | Chrome-silicon spring steel; fatigue-resistant | |
| 50CrV4 (EN 10277) | 0.47–0.55% C, max. 1.10% Mn, 0.90–1.20% Cr, 0.10–0.20% V, max. 0.40% Si | 1200 MPa | Old British 735 steel | ||
| 9255 | 0.50–0.60% C, 0.70–0.95% Mn, 1.80–2.20% Si[9] | ||||
| 301 spring-tempered stainless steel [10] |
0.08–0.15% C, max. 2.00% Mn, 16.00–18.00% Cr, 6.00–8.00% Ni[9] | 147 ksi (1014 MPa) | 42 | ||
Applications
- Applications include piano wire (also known as[11] music wire) such as ASTM A228 (0.80–0.95% carbon), spring clamps, antennas, springs, and vehicle coil springs, leaf springs, and s-tines.
- Spring steel is also commonly used in the manufacture of metal swords both historically and for stage combat due to its resistance to bending, snapping or shattering.[dubious ]
- Spring steel is one of the most popular materials used in the fabrication of lockpicks due to its pliability and resilience.
- Tubular spring steel is used in the landing gear of some small aircraft due to its ability to absorb the impact of landing.
- It is also commonly used in the making of knives, especially for the Nepalese kukri.
- It is used in binder clips.
See also
This article uses material from the Wikipedia article "Spring steel", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia
