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PROTOCAST JLC Lost Wax Precision Investment Casting

Protocast JLC

Precision Investment Casting

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Stainless Steel Investment Casting

April 6, 2017 By Pam List

Stainless Steel Investment Casting

Stainless steel is one of the most popular alloy classifications utilized in the investment casting process. Parts cast in stainless steel provide outstanding strength, as well as excellent corrosion and wear resistance without the need for additional processing or plating. This alloy class is also well known for its excellent machinability and aesthetic appearance. The number of stainless steels available allows for a wide range of mechanical properties, magnetic permeability, and heat resistance, giving the customer the option to choose an alloy that will perfectly fit their needs. 

Protocast JLC will produce stainless steel investment castings that meet your every requirement. From basic geometry to complex cores and extremely thin walls, we have the experience needed to provide solutions to your design and manufacturing difficulties. 

Common Alloys Poured

Austenitic Stainless Steel

Cast 300 series alloys are one of the most popular families of stainless steel used in industry. These alloys have excellent corrosion resistance, but cannot be hardened by heat treat. 

Alloy Castability Machinability Corrosion Resistance Weldability Harden by Heat Treat Magnetic Industries Served
303 (CF16F) 2 2 1 3 No No · Medical
· Marine
· Mining
· Food and Dairy
· Automotive
· Valves
· Petrochemical
304 (CF8) 1 3 1 1 No No
304L (CF3) 1 3 1 1 No No
316 (CF8M) 1 3 1 2 No No
316L (CF3M) 1 3 1 2 No No
347 1 3 1 1 No No

Martensitic Stainless Steel

The addition of carbon causes cast 400 series alloys lose a portion of austenitic’s corrosion resistance, but the ability to harden the alloy through heat treatment ultimately yields stronger castings. These alloys have the ability to retain hardness, shape, and precision under extreme temperatures and conditions.

410 2 2 3 3 Yes Yes · Automotive
· Machine Tool
·Food and Dairy
· Firearms
416 3 1 3 4 Yes Yes
440A 1 3 3 4 Yes Yes
440C 1 3 3 4 Yes Yes
440F 1 2 3 4 Yes Yes

Martensitic Stainless Steel – Precipitation Hardened

These high-quality stainless steels combine the excellent corrosion resistance of the austenitic types with the ability to be hardened by heat treatment, providing a high tensile strength and hardness.

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9732 Cozycroft Avenue
Chatsworth, CA 91311
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  • About Us
    • Why Choose Protocast JLC Precision Investment Casting?
    • Investment Casting
      • Gallery
      • Investment Casting Advantages
      • Investment Casting History
    • CNC Machining Services and Assembly
  • Alloy LIst
  • Contact
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