World Library  
Flag as Inappropriate
Email this Article

Spring steel

Article Id: WHEBN0002581444
Reproduction Date:

Title: Spring steel  
Author: World Heritage Encyclopedia
Language: English
Subject: Steels, Cage nut, Treehouse attachment bolt, Binder clip, Constant-force spring
Collection: Steels
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Spring steel

Spring steel is a name given to a wide range of steels[1] used widely in the manufacture of springs, prominently in Automotive and Industrial suspension applications. These steels are generally low-alloy, 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.

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.

Common Spring steel grades
SAE grade (ASTM grade) Composition Yield strength Typical hardness [HRC] Maximum hardness [HRC] Comments
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 (A666)[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 such as ASTM A228 (0.80–0.95% carbon), which is also known as music wire,[11] 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 used for stage combat due to its resistance to snapping or shattering.
  • 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 some of the smaller aircraft's landing gear due to its ability to absorb the shock from landing & also acts like damping.
  • It is also commonly used in the making of knives, especially for the Nepalese kukri.

See also

References

Bibliography


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.