Stainless Steel Investment Castings


17-4 Stainless Steel Castings, Aerospace Industry, Cargo System Component

Material 17-4: Stainless Steel  Castings, Cargo System Component, Aerospace

316 Stainless Steel Castings, Electrical Industry
Material 316: Stainless Steel Alloy Castings, Electrical

Thin walls, complex geometries, tight tolerances 

Aero Metals Inc. has extensive experience producing stainless steel investment castings. You can find our stainless steel castings in products traversing the depths of the ocean, in advanced aircraft soaring through the skies, and in countless applications in between. Check out our work gallery to see prime examples of our stainless steel casting work.

Request a quote on stainless steel investment castings, or contact us to learn more.

Common Alloys for Stainless Steel Casting

There are many, many stainless steel alloy grades available. Aero Metals works with a number of these alloys in our stainless steel casting processes. Based on your performance and application requirements, our expert metallurgists can help you choose the best alloy for your stainless steel investment castings. Alloys we commonly work with include, but are not limited to:

Austenitic Stainless Steels

  • 300 Series Stainless (ANSI Equivalent)
    • CF16F (303)
    • CF8 (304)
    • CF3 (304L)
    • CH20 (309)
    • CK20 (310)
    • CF8M (316)
    • CF3M (316L) 

Ferritic & Martensitic Stainless Steels

  • 400 Series Stainless (ANSI Equivalent)
    • CA15 (410)
    • IC 416 (416)
    • CA40 (420)
    • IC 431 (431)
    • IC 440A (440A)
    • IC 440C (440C)

Precipitation Hardening (PH) Martensitic Stainless Steels

  • 14-4 PH
    • AMS 5340
  • 15-5 PH
    • ASTM A 747 CB 7Cu-2
    • AMS 5346
    • ASM 5347
    • ASM 5356
    • AMS 5357
    • AMS 5400
  • 17-4 PH
    • ASTM A 747 CB 7Cu-1
    • AMS 5342/5344
    • AMS 5343
    • AMS 5355
    • MIL-S-81591 IC -17-4

Austenitic/Ferritic (Duplex) Stainless Steels

  • 2205
    • X2CrNiMoN22-5-3

If you don’t see your alloy of choice listed above, we have the ability to pour any “air melted” stainless steel alloy.

Contact Aero Metals to discuss your material requirements. We can help you find the right alloy to fit your stainless steel casting requirements using our on-site spectrometer. This device gives you the ability to produce your own “specialty alloy” and enables you to change the chemistry to fit your application environment.

More About Stainless Steel Casting

The base alloy elements of any nickel-base or stainless steel casting are chromium, nickel, and molybdenum (or “moly”). These three components will determine the casting’s grain structure and mechanical prosperities, and will be instrumental in the casting’s ability to combat heat and/or corrosion.

Stainless steel has a minimum chromium content of 10.5%, making it more resistant to corrosive liquid environments and to oxidation. However, this is not an absolute. Stainless steel investment castings are considered to be “corrosion-resistant” when used in liquid environments and vapors below 1200°F (650°C) and “heat-resistant” when used above this temperature.

The industry distinguishes corrosion-resistant and heat-resistance casting grades by their carbon content. A stainless steel casting must have low carbon content to perform well in corrosive environments. Thus, higher carbon content will improve the performance of heat-resistant grades in high temperatures situations and improve their strength. If you are looking for a stainless steel alloy with high-heat resistance that performs well in more harsh environments, visit our nickel-based alloy casting page for a list of alloys to consider.

There are differences between wrought and cast versions of stainless steel. This is due to their chemical composition and their micro-grain structure, which is affected by how the material is produced. These factors must be taken into consideration when choosing an alloy for your stainless steel investment castings.

Request a quote on stainless steel investment castings for your application. Contact Aero Metals for more information.