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Stainless Steel Casting
Precision silica sol investment casting engineered for 304, 316L, 17 4PH, and duplex stainless steels delivering extreme corrosion resistance, high strength, and sanitary finish.
What Makes Cast Stainless Steel Different From Wrought Stainless
Cast stainless steel uses foundry specific alloy designations, CF8 for cast 304, CF8M for cast 316, distinct from the wrought bar and sheet grades machined from stock. Enstark Automation manufactures near net shape components in 304, 316L, 17 4PH, and duplex stainless steel for chemical, pharmaceutical, food processing, and marine applications where corrosion resistance under continuous wet or sanitary exposure is non-negotiable.
Our stainless foundry combines robotic ceramic shell molding, vacuum assisted pouring, chemical passivation, and 5 axis CNC machining to achieve strict CT4 tolerances and sanitary surface roughness. Explore our complete range of Casting Services including Aluminum Casting, Brass Casting, and custom steel alloy manufacturing.
Why Specify Cast Stainless Steel for Sanitary and Chemical Duty
Exceptional Corrosion and Chemical Resistance
Thrives in marine, acidic, alkaline, and high salinity processing environments without surface pitting or degradation.
High Mechanical Strength and Hardness
Precipitation hardening alloys like 17 4PH deliver extreme load bearing capacity and wear resistance up to HRC 40+.
High Temperature Oxidation Stability
Resists scaling, heat distortion, and thermal creep at operating temperatures reaching up to 900°C.
Hygienic and Polishable Surface
Electropolished mirror finishes (Ra 0.4µm) compliant with FDA and EHEDG standards for fast, sanitary, and medical equipment.
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Stainless Steel Alloy Classification for Casting
Materials
Austenitic Stainless Steel (CF8/304 and CF8M/316L)
Standard food and chemical grade alloys providing maximum corrosion resistance, superior cryogenic toughness, and excellent weldability.
Martensitic and Precipitation Hardening (17 4PH/420)
High strength alloys optimized for heat treatment, delivering exceptional hardness and wear resistance for valve stems, gears, and pump shafts.
Duplex and Super Duplex Alloys (2205/2507)
Dual phase microstructures providing extreme resistance to stress corrosion cracking in offshore oil, gas, and desalination equipment.
Forming Methods
Silica Sol Investment Casting
Premier lost wax process yielding smooth raw surface finishes (Ra 3.2µm), sharp dimensional details, and tight casting tolerances (ISO CT4 to CT6).
Water Glass Investment Casting
Cost effective lost wax method for medium to large structural stainless steel brackets, hinges, and flanges.
Vacuum Investment Casting
Eliminates gas entrapment and micro porosity during pour, ideal for aerospace impellers and high speed turbine blades.
Shell Mold Casting
High rigidity resin shell molds for heavy wall industrial stainless steel valve bodies and pump casings.
Stainless Steel Casting Production Workflow
Four controlled stages guaranteeing strict chemical composition, zero porosity, and precise dimensional execution.
Alloy Melt Spectrometry and Pattern Injection
Certified virgin stainless steel ingots are verified for exact Cr Ni Mo ratios. Precision wax patterns are injected and assembled into trees.
Silica Sol Shell Building and Dewaxing
Wax trees undergo robotic dipping in silica sol slurries to build multi layer ceramic shells, followed by high pressure steam dewaxing.
1050°C Shell Firing and Vacuum Pouring
Ceramic shells are pre fired at 1050°C to eliminate moisture and poured with degassed liquid stainless steel under vacuum assistance.
Chemical Passivation and CNC Machining
Castings are knocked out, passivated in nitric acid baths to form passive oxide films, electropolished, and 5 axis CNC machined.
Industrial Applications
High integrity stainless steel castings serving chemical, sanitary food, marine, and medical industries.
Chemical and Petrochemical Valves
Food and Dairy Processing Machinery
Marine Hardware and Fittings
Medical and Pharmaceutical Pumps
Equipment Integration and Chemical Systems
Cast stainless steel pump housings, chemical valve bodies, and rotary indexer components operate reliably in corrosive fluid processing and high purity automation.
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Frequently Asked
Questions.
