Based in La Porte, IN, Aero Metals provides premium precision investment casting services, including stainless steel castings, for diverse industries. They specialize in complex geometries and hard-to-manufacture parts, supporting sectors like aerospace, security hardware, firearms, and marine. The company utilizes custom tooling and is ISO 9001:2015 certified.
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Stainless Steel Casting Companies
Last updated: January 2026
This directory lists 51 stainless steel casting companies across the United States, from high-volume sand foundries specializing in industrial valves to precision investment casting houses serving aerospace and medical applications.
Buyers are frequently seeking solutions for components requiring superior corrosion resistance, high strength-to-weight ratios, or excellent weldability in harsh environments. This often involves navigating complex alloy specifications for applications such as pump housings, marine fittings, or food processing equipment where passivation and stringent surface finish are critical to prevent premature failure or contamination.
Foundries can specialize by casting method (investment, sand, centrifugal), by alloy focus (common grades vs. super duplex or precipitation hardening alloys), or by market segment (aerospace, defense, marine, medical). Some offer full-service capabilities including CNC machining and non-destructive testing (NDT), while others are pure foundries, requiring buyers to manage secondary operations.
Buyers should arrive with detailed 3D models (STEP, IGES), clear material specifications (e.g., ASTM A351 CF8M), anticipated annual volumes, and critical performance criteria. Suppliers expect transparent communication regarding design intent, cosmetic requirements, and any post-casting processes like heat treatment, electropolishing, or specific dimensional tolerances to accurately quote and execute.
Company Directory
51 companies nationwide
Aircraft Foundry Co Inc specializes in precision aluminum, magnesium, and other non-ferrous alloy investment castings. The company also provides investment and sand casting services for stainless steel, carbon steel, and various ferrous alloys. They serve demanding industries including aerospace, defense, medical, and oil & gas from their California facility.
American Casting Company provides high-quality investment casting services. Based in Hollister, CA, they specialize in delivering precision components with efficient production processes, catering to various industrial applications that require intricate and durable metal parts, including stainless steel.
Based in Belton, TX, American Spincast is an American-made centrifugal foundry established in 1982. They produce castings from 3” to 35 1/2” O.D. and offer on-site services like heat treating, chemical analysis, rough machining, and CNC precision machining for various alloys.
AMT Castings manufactures precision investment castings, serving critical applications across diverse industries including aerospace, power generation, medical, and defense. The company specializes in providing high-quality casting solutions for demanding market requirements.
Based in Almont, MI, Aristo-Cast, Inc. specializes in investment casting, rapid prototyping, and additive manufacturing for various metal alloys. They utilize both wax and 3D printing shells to produce precision components. The company is AS9100:D and ISO 9001-2015 certified, providing high-quality cast parts for diverse industrial applications.
Based in Willoughby, OH, Bescast, Inc. is an investment casting company specializing in high-precision stainless steel and nickel-based castings. The company manufactures components for the aerospace, military, and oil & gas industries.
Based in Greenville, SC, Bunty LLC is an AS9100D and ISO 9001:2015 certified full-service provider of custom cast, forged, and machined metal parts. The company operates a modern foundry, fabricating high-quality components from various alloys to precise specifications for industrial clients. They offer global manufacturing solutions.
Based in Temple, TX, Centrifugal Castings Inc. provides specialized centrifugal casting services. They offer a comprehensive manufacturing process, managing inventory and developing custom stocking programs for industrial clients. The company produces high-quality cast components from various alloys, including stainless steel, tailored for diverse application needs.
Based in Montrose, MN, Craft Pattern specializes in manufacturing prototype metal parts. They offer casting services for ferrous and non-ferrous materials and cast metal alloys, utilizing robust processes. Capabilities also include precision 3, 4, and 5-axis CNC machining, and prototype and production tooling for diverse applications.
Dameron Alloy Foundries is an ISO 9001:2015 certified foundry specializing in custom steel, stainless steel, nickel, and cobalt-based alloy castings. Based in Cypress, CA, they offer shell and no-bake molding, precision grinding, heat treating, and non-destructive testing for demanding industries including aerospace, military, and medical.
Based in Temple, TX, Delta Centrifugal is a centrifugal casting manufacturer and machine shop specializing in high-quality stainless steel components. They produce over 200 alloys, offering as-cast, rough, or finish machined products for aerospace, defense, oil & gas, and food & pharmaceutical industries.
Based in Muskegon, MI, Eagle Alloy is a shell-mold foundry specializing in casting carbon and stainless steels. The company offers total project management, including machining, painting, and sub-assembly. They provide quick lead times, online order tracking, and prototype development with 3D printed sand capabilities.
Eagle Precision Cast Parts specializes in high-quality lost wax and precision investment casting services, producing ferrous and non-ferrous metal parts with tight tolerances. Based in Muskegon, MI, they serve a wide variety of industries, offering comprehensive capabilities from design guidelines to final production.
Based in Paramount, CA, Fenico Precision Castings manufactures custom metal components through precision casting processes. The company provides high-quality casting solutions for various industrial applications, specializing in intricate parts from diverse alloys, including stainless steel, to meet client requirements.
Based in Franklin, PA, Franklin Precision Castings is an automated investment casting foundry. They specialize in pouring over 120 alloys, including stainless steels, and offer comprehensive services from design to finished components. Capabilities include in-house tooling, rapid prototyping, and CNC machining for various industrial sectors.
Based in McAllen, Texas, Intercast specializes in precision investment castings for diverse industrial applications. They utilize advanced manufacturing processes to produce complex parts from various alloys, including stainless steel, carbon steel, and specialty alloys, serving sectors like aerospace, medical, and automotive.
IPC Foundry Group operates a network of investment casting foundries with facilities in Utah, Texas, and internationally. They specialize in custom tailored production and scalable casting solutions, partnering with machining and finishing providers. IPC is committed to delivering high-quality metal castings, adapting to diverse production needs for various industries.
MetalTek manufactures critical metal components for demanding high-heat, high-wear, and high-corrosion applications. The company provides extensive metal casting services, including centrifugal, sand, and investment casting, along with high-integrity ingot and AOD. They serve industrial, defense, aerospace, and petrochemical markets, offering integrated metallurgy, engineering, and machining expertise.
Based in Winona, MN, Midwest Metal Products provides precision metal casting services, specializing in iron and steel. The company helps customers achieve reduced part counts and enhanced product value through their advanced casting solutions. They serve industrial and commercial clients.
Based in Fridley, MN, Minncast, Inc. specializes in custom low-volume steel castings up to 2,500 lbs using airset sand molding. They pour carbon, stainless, duplex stainless, and nickel-base alloys. Minncast serves material handling, pumps, valves, and heavy industrial sectors, ensuring quality with ISO 9001:2015 certification.
Based in Gallatin, TN, Precision Castings of Tennessee, Inc. is an investment casting foundry established in 1977. They specialize in netshape investment castings, offering versatile methods and unlimited alloy choices for various industries. The company serves sectors like military and automotive.
ProtoCast JLC, LLC is an investment casting foundry based in Chatsworth, CA, specializing in rapid prototyping and production casting services. They produce high-quality, precision components from materials such as various stainless steels (300 & 400 series, 17-4PH), aluminum, and carbon steel, for diverse industrial applications.
Based in Lockhart, TX, Pure Castings Company is an ISO 9001:2015 certified investment castings foundry. Established in 1968, the company specializes in precision investment castings utilizing both ferrous and non-ferrous materials, ensuring high quality and precise metallurgical and chemical controls for diverse customer needs.
Based in Salem, OH, Quaker City Castings produces steel, stainless steel, iron, and alloy castings via no-bake sand and centrifugal processes. They specialize in large and intricate components up to 3,500 lbs, offering integrated CNC machining. The company serves diverse industrial applications including automotive, pump, and valve parts.
Shelmet Casting is a U.S. manufacturer specializing in investment castings and precision parts. They offer lost wax casting services for stainless steel, cobalt, and custom alloys. With operations since 1960, the company serves various industries requiring high-quality, complex metal components.
Based in Santee, CA, South Bay Foundry, Inc. provides high-quality sand casting services. They specialize in producing intricate and durable components from stainless steel, aluminum, brass, bronze, copper, and iron. The foundry serves diverse industrial and commercial clients with custom casting solutions.
Stainless Foundry & Engineering, a US-based company, offers dual casting processes, including sand and investment casting. They pour over 250 alloys, specializing in stainless steel, nickel, and cobalt. Comprehensive machine shop services are also provided, catering to industries like aerospace, marine, power generation, and chemical.
Based in South Gate, CA, Techni-Cast specializes in centrifugal castings. The company produces castings from various alloys including stainless steel, aluminum bronze, cobalt, aluminum, and nickel. They serve industrial customers, meeting specifications such as AMS 4880 and AMS 4881 for high-quality components.
Based in Niles, OH, Trumbull Foundry specializes in high-quality custom castings, including stainless steel, carbon steels, irons, and tool steels. Since 2008, the company has provided innovative casting solutions and gray iron foundry expertise for diverse industries across the U.S.
Texas Precision Metalcraft Inc, based in Sugar Land, TX, specializes in investment casting services. The company works with various metals, including stainless steel, aluminum, and carbon steel. They offer rapid prototyping, dependable production with competitive lead times, and reverse engineering services. TPM can utilize existing molds or create new ones, serving industrial clients with custom metal part needs.
Based in Waukesha, WI, Waukesha Foundry specializes in producing stainless steel castings. They offer over 30 grades of cast stainless steels, providing a wide range of shapes and sizes to meet diverse industrial cast component needs. The company serves various sectors requiring high-quality metal components and solutions.
Barron Industries, based in Oxford, MI, is a turnkey manufacturer specializing in investment casting and machining of precision stainless steel parts. They provide comprehensive solutions for aerospace, defense, space, oil and gas, and other commercial industries, ensuring high-quality machined castings and assemblies.
Based in Taunton, MA, D.W. Clark Advanced Castings manufactures engineered sand and centrifugal alloy castings. They deliver complex, specialty alloy castings from prototype to production, working with over 200 alloys. The company serves critical applications across energy, defense, aerospace, transportation, and flow control industries.
Based in Milwaukee, WI, Badger Alloys is a full-service sand casting manufacturer. The company pours over 200 alloys, including stainless steel and high alloy materials. With 50+ years of family ownership, they offer next-generation manufacturing, additive and subtractive technologies, and specialize in complex castings.
Based in Angels Camp, CA, California Electric Steel Co. operates an electric arc furnace steel mill. This family-owned foundry specializes in custom steel castings, including stainless steel and various alloys, serving diverse industrial applications. They also provide comprehensive heat treating services.
Based in Cleveland, OH, Consolidated Precision Products specializes in investment and precision sand casting. They produce complex superalloy, titanium, aluminum, magnesium, and steel castings for advanced aerospace, defense, and power generation applications worldwide. CPP provides high-quality components for demanding industrial needs.
Force Beyond, based in New Castle, DE, provides custom stainless steel casting parts, including super duplex, for automotive, oil & gas, medical, and aerospace industries. They also offer investment casting, forging, and precision CNC machining. Services include engineering design, supply chain management, and ISO 9001:2015 certified quality control.
Based in Saukville, WI, Johnson Centrifugal Technology specializes in producing stainless steel and custom alloy castings via vertical centrifugal technology. The company provides a one-stop-shop for custom chemistry, precision casting, and complete in-house machining services. They offer expert metallurgical support and NDT testing for challenging industrial applications.
MCC International, Inc. specializes in centrifugal casting and finish machining of high-grade ferrous and non-ferrous products. Based in McDonald, PA, the company manufactures complex, near-net shape castings for diverse applications including steel mills, power transmission, and elevators. They also offer heat treating for their US-made products.
Milwaukee Precision Castings specializes in high-quality stainless steel alloy casting services. Based in Milwaukee, WI, the company offers investment casting solutions for various industries. They are adept at meeting specific project requirements, ensuring precision and reliability in their manufactured components.
Based in Pewaukee, WI, Northern Stainless Corporation is an American casting foundry providing a wide range of capabilities. They deliver quality products with shorter lead-times, operating as an ISO 9001:2015 and PED 2014/68/EU certified company. Their lean manufacturing and sustainability principles ensure high-quality service.
Based in Waukesha, WI, Quality Castings WI provides precision investment casting services and high-quality product engineering services. The company specializes in investment propeller casting, offering expertise in producing complex components for various industrial applications and ensuring high-quality cast products.
Based in Cincinnati, OH, Sawbrook Steel Casting, LLC specializes in producing high-quality steel castings. The company operates its own facility, manufacturing components for diverse industrial applications. They offer casting services across a range of common grades and invite quote requests for custom steel casting projects.
Based in Longview, TX, Southwest Steel Casting is a woman-owned business providing steel casting services for over 50 years. The company produces steel components up to 6,000 lbs from its 150,000 sq ft facility, serving diverse industries across the United States.
Based in Lufkin, TX, Texas Metal Casting Co., Inc. is a full-service foundry specializing in high-quality steel and stainless steel castings. They produce components using 300 and 400 series stainless steel, carbon steel, and various iron alloys. Serving diverse industrial clients, the company focuses on rigorous quality control.
Wisconsin Precision Casting Corporation, based in Lake Geneva, WI, provides investment casting services for metal components. Specializing in production and rapid prototypes from solid models without tooling, the company offers solutions to improve quality and reliability while saving clients time and money.
RLM Castings, based in Oxford, MI, provides investment casting services adaptable to a wide range of materials. They specialize in manufacturing components using stainless steel, aluminum, and various specialty alloys. The company partners with clients across diverse industries for their precision casting needs.
Based in College Station, TX, Starforge Foundry specializes in advanced metal manufacturing, offering investment, sand, and die casting services. They produce high-precision components from various alloys, including stainless steel. Serving demanding industries such as aerospace and medical devices, they deliver custom casting solutions.
Based in Floresville, TX, Texaloy Foundry Company specializes in high-quality metal castings. They produce stainless steel, carbon steel, low alloy steel, and nickel-base alloy castings, alongside ductile and gray iron. With comprehensive in-house foundry capabilities, Texaloy serves diverse industrial applications for custom cast components.
West Coast Foundry, LLC, based in Vernon, CA, provides custom cast components from a wide variety of alloys. They specialize in valve and pump components utilizing corrosion-resistant and structural alloys. Serving OEMs, their castings support industries such as US Navy ships, rocket engines, medical equipment, automotive, mining, and timber processing.
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How to Choose a Company
- Verify the supplier's experience and track record with your specific stainless steel alloy, whether it's common 304L/316L or more specialized grades like 17-4 PH or duplex 2205. Ask for material certifications (MTRs) for similar past projects to ensure their metallurgical expertise and process control.
- Assess their primary casting process (e.g., investment casting for intricate parts, sand casting for larger geometries) and their in-house non-destructive testing (NDT) capabilities such as X-ray, liquid penetrant, or magnetic particle inspection to ensure internal soundness and surface integrity.
- For applications in aerospace or defense, require AS9100 or NADCAP accreditation for processes like heat treatment. For pressure-retaining components destined for Europe, ensure they can comply with the Pressure Equipment Directive (PED) and provide appropriate material traceability.
- Be wary of quotes that bundle tooling costs without clear ownership terms or those that seem disproportionately low for secondary operations like CNC machining, passivation, or electropolishing. These often hide a lack of in-house capability or lead to significant upcharges later, impacting total project cost.
- Prioritize suppliers offering design for manufacturability (DFM) feedback early in the process. Their ability to suggest minor design tweaks to improve mold fill, minimize porosity, or optimize gating can significantly reduce scrap rates and overall component cost, especially for complex geometries.
Frequently Asked Questions
How does the final surface finish affect the corrosion resistance of my stainless steel casting?
A rough surface finish, even on a stainless steel casting, can trap contaminants and provide sites for localized corrosion, despite the alloy's inherent resistance. Processes like mechanical polishing, electropolishing, or passivation are critical for removing surface impurities and creating a uniform, passive oxide layer, which is essential for maximizing corrosion performance in demanding environments.
Beyond 316L, when should I consider specialized stainless steel alloys like 17-4 PH or Duplex 2205?
While 316L offers excellent general corrosion resistance, 17-4 PH stainless is typically chosen for applications requiring significantly higher strength and hardness, often after a specific heat treatment (e.g., H900). Duplex 2205 provides superior resistance to pitting and stress corrosion cracking in aggressive chloride environments, making it ideal for marine, oil and gas, or chemical processing industries where 316L might fail.
What steps can I take to mitigate porosity issues in critical stainless steel castings?
Preventing porosity starts with robust design for manufacturability (DFM) to ensure proper solidification patterns and eliminate hot spots. During production, foundries use techniques like precise melt control, vacuum degassing, and optimized gating/risering systems. For particularly critical parts, specify non-destructive testing (NDT) methods like X-ray inspection to detect internal porosity before machining, and consider Hot Isostatic Pressing (HIP) for severe applications to close internal voids.
Who typically owns the casting tooling, and what are the implications for future orders or suppliers?
Generally, the buyer pays for and owns the casting tooling (patterns, core boxes, dies), even if it resides at the supplier's facility. It's crucial to have a clear tooling agreement outlining ownership, maintenance responsibilities, and terms for retrieval if you decide to switch suppliers. Without explicit ownership, you risk losing your investment or facing unexpected costs when trying to move production.