Spring steel is a 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 bending or
Spring steel usually works under impacting and vibrating ,shaking and some
other steady circumstances,so, spring steels usually have high
yield strength,tensile strength and high elongation,high
For spring steels used in high temperature situations,they are also
required to have high temperature resistance,resistant of
oxygenation corrosion,and low magnetism.
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. Applications include piano wire, spring clamps,
antennas, and springs.
Category of spring steels:
According to their chemical properties, spring steel can be divided
into carbon spring steels and alloy spring steels.
Carbon spring steels have a content of element carbon(percentage in
mass) from 0.62% to 0.90%,and according to the content of
manganese,they can be divided in to general Mn content spring
steels(percentage in mass)(0.50%~0.80%) , and high manganese spring
steels(percentage in mass)(0.90~1.20%).
Alloy spring steels mains means base on the concept of carbon
spring steel, to improve the mechanical property,harden-ability,and
some other properties through adding in one or several other metal
elements,so as to fulfill the demand of steels to make every kind
of springs.For example,we have Si-Mn spring steels,Si-Cr spring
steels,Cr-V spring steels,W-Cr-V spring steels,and based on these
steel,in order to improve the property of some other
aspects,Mu,V,and B elements are added in some other grades.
What is more, some grades from fine grained structural steels and
carbon tool steels,stainless steels are chosen to be classified as
The main grades of Spring steel are:65,TYPE SC,TYPE