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 are used in marine products traversing the depths of the ocean, in advanced aircraft soaring through the skies, and in countless other applications in between. Check out our work gallery to see prime examples of our stainless steel casting work.

Stainless Steel Casting – What’s it made of?

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 “corrosion-resistant” when used in liquid environments and vapors below 1200°F (650°C) and “heat-resistant” when used above this temperature.

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, cast or extruded These factors must be taken into consideration when choosing an alloy for your stainless steel investment casting metal project.

Stainless Steel Casting Carbon Content

The industry distinguishes corrosion-resistant and heat-resistance stainless steel investment 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 temperature 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.

Common Alloys for Stainless Steel Casting

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

Austenitic Stainless Steels we cast

300 Series Stainless (ANSI Equivalent)

  • CF16F (303)
  • CF8 (304)
  • CF3 (304L)
  • CH20 (309)
  • CK20 (310)
  • CF8M (316)
  • CF3M (316L)

300 Series Industrial Applications

  • Medical
  • Mining
  • Petrochemical
  • Food & dairy
  • Automotive
  • Valves

Ferritic & Martensitic Stainless Steels we cast

400 Series Stainless (ANSI Equivalent)

  • CA15 (410)
  • IC 416 (416)
  • CA40 (420)
  • IC 431 (431)
  • IC 440A (440A)
  • IC 440C (440C)

400 Series Industrial Applications

  • Automotive
  • Machine tool
  • Food & dairy
  • Firearms

Precipitation Hardening (PH) Martensitic Stainless Steels we cast

14-4 PH Series

  • AMS5340

15-5 PH Series

  • ASTM A 747 CB 7Cu-2
  • AMS 5346
  • ASM 5347
  • ASM 5356
  • AMS 5357
  • AMS 5400

17-4 PH Series

  • ASTM A 747 CB 7Cu-1
  • AMS 5342/5344
  • AMS 5343
  • AMS 5355
  • MIL-S-81591 IC -17-4

PH Series Industrial Applications

  • Military
  • Medical
  • Machine tool
  • Hand Tools
  • Aerospace

Austenitic/Ferritic (Duplex) Stainless Steels we cast

2205 Series

  • X2CrNiMoN22-5-3

2205 Series Applications

  • Chemical processing & storage
  • Oil & gas exploration
  • Cargo tanks
  • Food & dairy
  • Marine Accessories

If you don’t see your alloy of choice listed above, we can custom pour any “air melted” stainless steel alloy to fit your stainless steel investment casting project requirements.

Contact Aero Metals to discuss your stainless steel casting material requirements

Request a quote today or contact us for more information. 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.