All You Need to Know About the AMS 5510 Standard

Integral to the manufacture of tools, appliances, and equipment necessary for modern life, the U.S. metal fabrication industry continues to grow by significant margins. The U.S. Bureau of Labor Statistics estimates that the industry will record a CARG of 9% between 2016 and 2026, adding at least 12,000 jobs to the workforce. The increasing demand for combined metals in the automotive, aerospace, and manufacturing industries will continue to drive up the growth of metal fabrication.

A critical aspect of thin metal sheet use is the industrial standards. Specifications such as the AMS 5510 provide a guideline of the technical, chemical, and physical properties of the different metal sheets. The standards also dictate the use of the specific metal in certain industries.

The AMS 5510

The AMS 5510 is a stainless-steel specification for the 321 stainless grades. Type 321 is a chromium-nickel stainless steel grade with an addition of titanium. The titanium sets it apart from the 304 stainless steel series and increases its industrial applications.

Learn more about the properties of the AMS 5510 stainless steel below.

Resistance to Intergranular Corrosion

One of the greatest challenges in welding stainless steel under high temperatures is carbide precipitation. At temperatures between 930°F and 1470°F, the chromium combines with carbon to form chromium carbide grains at the edges, becoming a detriment to the corrosion resistance properties of the stainless steel.

Manufacturers using thin metal strips of stainless steel can combat intergranular corrosion by using the AMS 5510 specification 321 grade. At high temperatures, carbon has a higher affinity for titanium over chromium, thus preventing the formation of chromium carbide grains. This makes the stainless steel 321 grade a better option than the 304 series.

Oxidation and Corrosion Resistance

The AMS 5510 specification for the 321 stainless grade guarantees better corrosion and oxidation resistance at higher temperatures of 800°F to 1500°F. This makes the stainless-steel grade an excellent metal for use in chemical manufacturing industries with high intermittent temperature ranges. Besides, the 321 has higher creep and stress rupture properties than the 304 or 304L stainless.

Fatigue Strength

The high endurance mechanical properties of the AMS 5510 make it an ideal metal for use in high-temperature exposures. In an annealed condition, the typical fatigue limits in the 321 stainless steel are higher than those in the 304 or 304L stainless. This increases the ductility of the 321 in high-temperature welding conditions.

Temperature Factors

The temperature factors in 321 are slightly higher than those of the 304 and 304L at elevated temperatures. This makes 321 an excellent choice for higher temperature ranges such as aircraft piston manifolds, exhaust pipes, refinery equipment, and high-temperature chemical plants.


You can order the 321 stainless steel grades in a variety of forms. The AMS 5510 is available in sheet, strip, bar, tube, plate, strip, or forging fork. You can discuss your exact thickness specifications with your compound metal supplier in Chicago.

The AMS 5510 321 stainless steel grade may provide better corrosion and temperature endurance properties than the 304 series. To discuss your order for the stainless steel or other thin metal sheets, contact Thin Metal Sales today.

Leave a Reply

Your email address will not be published. Required fields are marked *