Spring Steel
High-carbon and alloy spring steels for suspension, valvetrain, clutch and clips.
Overview
Spring steel is a high-carbon or alloy steel family, including silicon-manganese grades, processed for elastic limit and fatigue life. It is the material of suspension coil and leaf springs, valve springs, clutch diaphragms and innumerable clips. It is not mild steel, not AHSS body sheet, and not maraging steel. Spring steels are heat-treated to a spring temper and specified by fatigue, not by crash intrusion. Typical forms are wire, bar and strip. Fully recyclable as steel. Surface quality and decarburisation control are as important as the alloy itself.
Automotive Applications
Similar Materials
Aluminium-Silicon Casting Alloys
Al-Si Casting Alloy
Al-Si casting alloys such as A356 and AlSi10Mg for engines, gearboxes and additive aluminium parts.
Titanium
Titanium Alloy (Ti-6Al-4V)
Exotic high-strength metal prized for its strength-to-weight ratio
Aluminium
Aluminium Alloy
Lightweight metallic element used extensively in automotive construction
Aluminium-SiC MMC
Metal Matrix Composite
Aluminium metal-matrix composite reinforced with silicon carbide, used for brake discs, drums and pistons.
Properties
Category
Type
Spring Steel
Available Forms
Key Properties
- High elastic limit
- Fatigue-specified grade
- Heat-treated spring temper
- Distinct from mild steel and AHSS
- Distinct from maraging steel
- Recyclable steel