Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
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S70C High quality Spring Steel

S70C High quality Spring Steel

S70C High quality Spring Steel
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S70C High quality Spring Steel




Material Name


Material Name: S70C High quality Spring Steel

Chemical Composition


C Si Mn P S Cr Ni Cu
0.67-0.75 0.17-0.37 0.5-0.8 0.035 0.035 0.25 0.3 0.25

Physical properties


■Characteristic


Tensile strength
Rm N/mm²
 Yield Strength (0.2％ offset)
Rp0.2N/mm²
 Elongation
A5 ％
 rate of reduction in area
≥715 ≥420 9
 ≥30

features


After heat treatment and cold drawing hardening, S65C has high strength and certain toughness and plasticity; under the same surface condition and complete hardening, the fatigue limit is equivalent to that of alloy spring.It has superior elasticity and slightly higher strength. It is mainly suitable for the manufacture of round and square spiral springs on machines with small cross-section and low strength requirements. For example, flat springs and circular vibrations on mechanical vibrations such as automobiles, tractors or trains. Coil springs, etc. Because it works under dynamic load environment conditions, the material of the spring should be mainly high yield strength; it should not cause plastic deformation when subjected to heavy load; it should have high fatigue strength under repeated load Has a long service life; and has sufficient toughness and plasticity to prevent sudden brittle fracture under impact.

Applications


It is mainly suitable for the manufacture of round and square spiral springs on machines with small cross-section and low strength requirements, such as flat leaf springs and circular coil springs that are subjected to vibration on machinery such as automobiles, tractors or trains.

Delivery State


Non heat treatment or heat treatment (annealing, normalizing and high temperature tempering) state of delivery. For heat treatment delivery should be noted in the contract, or by non heat treatment delivery.