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Compression Springs Compression Springs

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Extension Springs Extension Springs

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Torsion Springs Torsion Springs

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Conical Springs Conical Springs

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Stainless Steel Helical Springs

Find stock and custom helical springs made of stainless steel. In our stock compression spring catalog, you can select from over 6,500 stainless steel springs. We also carry stainless steel conical springs. Although the conical spring catalog is smaller it also offers a wide selection to meet your needs. Custom stainless steel springs can also be made to fit your application's requirements more specifically.

 

There are three types of stainless steel:

 

  • Stainless Steel 302 ASTM A313
  • Stainless Steel 17-7 ASTM A313
  • Stainless Steel 316 ASTM A316

Stainless Steel 302

Stainless Steel 302Stainless Steel 302

 

This type of stainless steel is the most economical. It is made up of Chromium (Cr) and Nickel (Ni) so it is corrosion resistant and will not rust in humid environments. This material can bear temperatures as high as 550ºF (288ºC). It is used for general purpose, corrosion, and heat resistance.

Stainless Steel 17-7

Stainless Steel 17-7Stainless Steel 17-7

 

This material type is a bit more expensive than 302 but it does give you more as well. It is made from Chromium (Cr) and Nickel (Ni) like stainless 302 but 17-7 has aluminum as well. These material properties allow this wire type to have more corrosion resistance.

Stainless Steel 316

Stainless Steel 316Stainless Steel 316

 

This particular stainless steel type has similar pricing to 17-7 but it is more extravagant and there is a very limited supply which can boost up the prices from time to time. Stainless 316 is made from Chromium (Co), Nickel (Ni), and Molybdenum (Mo). Thanks to these properties, This material can resist temperatures as high as 650ºF (343ºC) and is 90% non-magnetic.

Material AISI 302/304 ASTM A 313
Nominal Analysis Cr-17.0-19.0% Ni-8.0-10.0%
Minimum Tensile Strength 125-325
Modulus of Elasticity E psi x 10³ 28
Design Stress % Minimum Tensile 30-40
Modulus in Torsion G psi x 10⁶ 10
Maximum Temp. °F 550º
Maximum Temp. °C 288º
Rockwell Hardness C35-45
Method of Manufacture Cold drawn.
Chief Uses General purpose, corrosion and heat resistant.
Special Properties Magnetic in spring temper.
Material 17-7 PH ASTM A 313 (631)
Nominal Analysis Cr-16.0-18.0% Ni-6.5-7.5% Al-.75-1.5%
Minimum Tensile Strength Cond CH 235-335
Modulus of Elasticity E psi x 10³ 29.5
Design Stress % Minimum Tensile 45
Modulus in Torsion G psi x 10⁶ 11
Maximum Temp. °F 650º
Maximum Temp. °C 343º
Rockwell Hardness C38-57
Method of Manufacture Cold drawn & precipitation hardened after fabrication.
Chief Uses High strength and general purpose corrosion resistance.
Special Properties Slightly magnetic in spring temper.
Material AISI 316 ASTM A 313 (631)
Nominal Analysis Cr-16.0-18.0% Ni-10.0-14.0% Mo-2.0-3.0%
Minimum Tensile Strength 110-245
Modulus of Elasticity E psi x 10³ 28
Design Stress % Minimum Tensile 40
Modulus in Torsion G psi x 10⁶ 10
Maximum Temp. °F 550º
Maximum Temp. °C 288º
Rockwell Hardness C35-45
Method of Manufacture Cold drawn.
Chief Uses Heat resistant and better corrosion resistance than 302.
Special Properties 90% Non-Magnetic in spring temper.