Types of spring materials

The types of spring materials are mainly divided into two categories: metallic materials and non-metallic materials.

The commonly used metal spring materials are as follows:

Spring steel

• Carbon spring steel: typical grades include 70, 65Mn, T8, etc
• Alloy spring steel: typical grades include 50CrV, 55CrSi, 60Si2Mn, etc
• Stainless steel for springs: typical grades include 12Cr18N9, 06Cr19Ni9, 07Cr17Ni7A1, etc

Elastic alloy

• Copper alloys: tin bronze, silicon bronze, Russian bronze, white copper, and brass
• Nickel and nickel alloys: pure nickel, nickel copper alloy, nickel cobalt alloy, nickel chromium alloy
• Other special alloys: high-speed tool steel, alloys for elastic components, memory alloys, etc

The commonly used non-metallic spring materials are as follows:

Fluid material:

• Gas (air, hydrogen, etc.)
• Liquid (oil)
• Gas-liquid mixing

Inorganic materials:

• ceramic materials

Polymer materials:

• Rubber
• Plastic
• Fiber reinforced materials