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A-36 Structural Steel Springs

Stalder Spring has the capacity to manufacture custom A-36 springs. A-36 structural steel springs are a low carbon mild steel with similar properties to the 1018 low carbon steel alloy. Typically, they contain trace amounts of other alloying elements as well, such as manganese, sulfur, phosphorus, and silicon. Relatively ductile, A36 structural steel can be elongated to around 20% of its original length during tensile testing. This combined with its ultimate tensile strength of somewhere between 58,000 to 79,800 psi makes A-36 structural steel custom springs an excellent option for a number of industries, including:

  • Agriculture
  • Manufacturing
  • Construction
  • Petrochemical
  • Sports & Recreation
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 For almost 75 years, Stalder Spring’s expert technicians have been supplying unique A-36 structural steel springs for a wide range of clients within these industries. These wire forms are used for many applications, such as:


Hay Balers




Dishwasher Baskets

Yard Stakes

Burial Vault Handles

Pressure Gauges


Finishing Services & Sizing Options

Stalder Spring also offers an array of finishing services. To do this efficiently, we work with third party vendors who we have developed relationships with over the years. The finishing services we frequently provide include:

  • Powder Coating
  • Zinc Plating
  • Folsom Oil
  • High Corrosion Resistant Coatings
  • Mechanical Zinc Plating
  • Black Oxide

Stalder Spring has the capacity to manufacture a wide variety of sizes ranging from .020" to .312" on regular materials and .035 to .750 on low carbon steel. 

Thinking Outside the Box

At Stalder Spring, we take pride in thinking outside the box to provide our customers with custom A-36 springs that other companies are unable to manufacture. We have, at times, even designed our own machines for particularly peculiar jobs. We also keep agreed-upon quantities of client springs in stock so that we can offer shorter turnaround times on future orders. Please contact us today to find out more.

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