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spring steel
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spring steel line

Spring steels are steels that are used exclusively for the manufacture of springs and elastic elements due to their elasticity in the hardened and tempered state. The elasticity of steel depends on its ability to deform elastically, i.e., within a specified range, the ability to deform elastically so that it can withstand a certain load without permanent deformation after the load is removed. 

Spring steel introduction

Spring steel should have excellent overall performance, such as mechanical properties, resistance to elasticity reduction performance (that is, resistance to elasticity reduction performance, also known as resistance to relaxation performance), fatigue performance, hardenability, physical and chemical properties (heat resistance, low temperature resistance, oxidation resistance, corrosion resistance, etc.). 

In order to meet the above performance requirements, spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality , accurate shape and size.

Composition of spring steel

Steel gradeC [%]
Si [%]Mn [%]
P [%] ­max.S [%] ­max.Cr [%] ­max. / –Mo [%]Ni [%] ­max.V [%]
C55S0.52 – 0.600.15 – 0.350.60 – 0.900.0250.0100.400.100.40
C60S0.57 – 0.650.15 – 0.350.60 – 0.900.0250.0100.400.100.40
C67S0.65 – 0.730.15 – 0.350.60 – 0.900.0250.0100.400.100.40
C75S0.70 – 0.800.15 – 0.350.60 – 0.900.0250.0100.400.100.40
C100S0.95 – 1.050.15 – 0.350.30 – 0.600.0250.0100.400.100.40
51CrV40.47 – 0.550.400.70 – 1.100.0250.0100.90 – – 0.25
80CrV20.75 – 0.850.15 – 0.350.30 – 0.500.0250.0100.40 – 0.600.100.400.15 – 0.25

Spring steel Mechanical Property

Category EN 47 Spring Steel
Density:  7.85 g/cm3
Thermal Expansion:  11.2 x 10-6/°C
Thermal Conductivity:  43 W/m.K
Electrical Resistivity:  0.142 x 10-6 Ω.m
Elastic Modulus:  190-210 GPA
Poisson’s Ratio:  0.27-0.30
Hardness:  30-35 HRC (Annealed condition)
Tensile Strength:  785-935 MPa
Yield Strength:  550-690 MPa
Elongation:  12-15%

Specifications of Spring steel


Steel Q195 & Q235 & Q345 & High Tensile


Manual Packing Tool Packing (Ribbon & Oscillated Coil)Full Automatic Machine Packing (Jumbo Coil)

Brand Name





1/2'' 5/8'' 3/4'' 1'' 1-1/4''





Surface Treatment


Wound Type

Ribbon or Oscillated or Jumbo

Tensile Strength

600-1000+ N/mm2



Loading Port

On request


1000 kgs

Sample Service

Free sample availble

Applications of Spring steel

  • arrow iconApplications include piano wire (also known as music wire) such as ASTM A228 (0.80–0.95% carbon), spring clampsantennassprings (e. g. vehicle coil springs or leaf springs), and s-tines.
  • arrow iconSpring steel is commonly used in the manufacture of swords with rounded edges for training or stage combat, as well as sharpened swords for collectors and live combat.
  • arrow iconSpring steel is one of the most popular materials used in the fabrication of lockpicks due to its pliability and resilience.
  • arrow iconTubular spring steel is used in the landing gear of some small aircraft due to its ability to absorb the impact of landing.
  • arrow iconIt is frequently used in the making of knives, machetes, and other edged tools.
  • arrow iconIt is used in electrical fish tapes.
  • arrow iconIt is used in binder clips.
  • arrow iconUsed extensively in shims due to its resistance to deformation in low thicknesses.

our export country

We are a well known worldwide supply and export Spring steel in following countries:,Italy, Philippines, France,Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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