Common Stainless Steel Alloys

Below is a brief overlook at common stainless steel alloys. Click on alloy number of each to learn more about the actual composition and common uses for that particular alloy.

303 - Best for uses requiring extensive machining with good resistance to corrosion.

304 - The most commonly used stainless steel alloy, valued for it’s ease of forming, corrosion resistance and welding properties.

309 - Most often used in applications requiring strength, corrosion and high temperature resistance.

316 - Second only to 304 in popularity, this alloy contains molybdenum however provides better corrosion resistance than the number one alloy.

409 - This steel alloy is used where high temperature, good corrosion resistance and formability is required.

410 - Provides corrosion and scaling resistance with good impact strength, maintains excellent mechanical properties when heated.

416 - A chromium steel always magnetic, provides excellent machinability, not recommended for applications requiring welding.

430 - A non-hardenable steel alloy with formability and good resistance to corrosion.

Shelmet provides information about common stainless steel alloys and the composition of stainless steel.

For a comparison of world-wide stainless steel casting alloys designations, click here.

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