Case Hardening Companies

Based in South Gate, CA, Accurate Steel Treating specializes in aerospace heat treating services. Their processes include case hardening methods such as gas nitriding, ion nitriding, and endothermic carburizing, as well as vacuum and salt bath quenching. Nadcap accredited, the company serves major aerospace and defense clients like Boeing for precision thermal processing.

Based in Paramount, CA, Aerocraft Heat Treating Co Inc is an independent commercial heat treater. They process steel, titanium, and high-temperature materials for engine and structural components in aircraft manufacturing and maintenance. Aerocraft Heat Treating is Nadcap and AS9100/ISO9001:2015 certified, offering extensive heat treatment processes.

American Heat Treating Alabama, based in Anniston, AL, is a family-owned provider of high-quality heat treating services. Established in 2022, the company focuses on efficiency and service excellence. Its strategic Southeastern US location ensures swift and cost-effective logistics for industrial components.

Ajax Tocco Magnethermic Corporation, based in Warren, OH, provides innovative induction heating and melting solutions. Specializing in commercial heat treating, forging, mass heating, and foundry services, they advance induction technology for steel and heat treating applications. Their solutions are designed to optimize industrial productivity.

Akron Steel Treating Company, based in Akron, OH, offers high-quality heat treating services. They specialize in industrial components for aerospace and defense industries, including drill bits, hand tools, punches, bearings, and drive shafts. AST ensures repeatability and quality for innovative new products.

Based in Monroe, CT, American Heat Treating, Inc. specializes in case hardening services like batch carburizing, carbonitriding, and induction hardening. They also perform continuous hardening, austempering, tempering, and vacuum processes, with a focus on minimizing distortion for diverse industrial applications. Technical support is provided.

Based in Cleveland, OH, American Metal Treating specializes in commercial induction hardening for parts such as gears, shafts, and sprockets. This process protects areas exposed to wear with less distortion than carburizing. They serve industrial machinery, material handling, mining, wind, and oil & gas industries.

Based in Perrysburg, OH, American Steel Treating provides comprehensive steel heat treatment services. They specialize in continuous and batch carburizing and carbonitriding, offering reliable solutions for enhancing the surface hardness and durability of metal components for various industrial applications.

Based in Lafayette, LA, Analytic Stress Relieving, Inc. offers comprehensive heat treating solutions and a full spectrum of services. With a nationwide network and over 350 qualified technicians, the company prioritizes quality, safety, and innovative technology. They serve diverse industries, leveraging 45 years of experience in heat treatment.

Based in South Gate, CA, Astro Aluminum Treating Co Inc is a family-owned company with over 50 years of experience in the heat treating industry. They utilize 19 ovens and furnaces to provide precise heat treatment services, complemented by a dedicated department for material straightening.

Authority Flame provides precision heat treating services for ferrous and nonferrous materials, including flame hardening, induction hardening, annealing, and straightening. Serving industries such as automotive, medical devices, and defense, the company manages projects from prototypes to high-volume production. They focus on enhancing component performance and durability.

Bennett Heat Treating provides heat treat solutions for the metal-working industry. Specializing in vacuum and atmosphere thermal processes for ferrous and non-ferrous alloys, they operate facilities in Newark, NJ, and Warminster, PA. The company ensures high quality through rigorous testing and holds strict industry certifications including NADCAP and ISO.

Based in Burbank, CA, Burbank Steel Treating Inc offers comprehensive metal heat treating and thermal processing services. They provide world-class solutions for the Aerospace, Military, Automotive, Electronic, and Medical industries. With extensive experience, they deliver high-quality thermal processing, known for customer service in Southern California.

Based in Santa Clara, CA, Byington Steel Treating Inc. provides expert heat treating services, including comprehensive surface hardening processes such as carburizing, carbonitriding, nitriding, and induction hardening. They also offer cryogenic treatments and metal forming. Serving aerospace, electronics, automotive, and medical industries, the company ensures precision and performance.

California Metal Processing, also known as Cal-Metal, provides comprehensive heat treating solutions. Based in Los Angeles, CA, the company specializes in carburizing, carbonitriding, neutral hardening, tempering, normalizing, and annealing for various industrial components, serving diverse manufacturing needs.

Based in East Chicago, IN, Chicago Flame Hardening Co. provides specialized flame hardening services. Since 1946, they have offered precise surface hardening for industrial components, enhancing wear resistance and extending lifespan. The company utilizes advanced techniques and extensive heat treatment expertise to meet diverse manufacturing needs effectively.

Based in Cleveland, OH, Commercial Steel Treating provides essential steel heat treatment services for industrial clients. The company offers a range of metallurgical solutions, including case hardening, to enhance material properties, durability, and performance for various commercial and manufacturing industries.

Based in Santa Fe Springs, CA, Continental Heat Treating, Inc. specializes in thermal processing, precisely heating and cooling metals to alter their structural composition and achieve predetermined properties. The company provides expert metallurgical services for components across aerospace, defense, energy, electronics, transportation, and communications industries, holding NADCAP accreditation.

Based in Indianapolis, IN, Contour Hardening provides induction hardening, gas nitriding, and nitrocarburizing thermal processing services. They deliver science-based, repeatable results for surface hardness and depth with minimal part distortion for aerospace, automotive, agriculture, and heavy machinery industries.

Cook Induction Heating Co. provides specialized induction heating, heat treating, and brazing services for industrial clients, particularly within the demanding aerospace industry. Based in Maywood, CA, the company holds Nadcap Merit status, demonstrating a strong commitment to quality and adherence to strict industry specifications.

Based in Torrance, CA, Controlled Thermal Processing Inc. specializes in enhancing metal properties through advanced thermal processing. The company's services focus on removing manufacturing stresses, improving the cutting capabilities of tool steels like HSS and Carbide, and increasing material tensile strength, toughness, and ductility.

Detroit Flame Hardening, based in Detroit, MI, offers precise, localized flame hardening solutions, a specialized case hardening process. Since 1941, the company has treated specific part areas to minimize distortion and reduce costs for diverse industries. They operate facilities in Detroit, Cleveland, and Cincinnati.

Based in Euclid, OH, Euclid Heat Treating is a specialist provider of heat treating services and secondary operations since 1946. They offer induction hardening, case hardening (batch and continuous), vacuum processing, and quench & temper. Serving industries like medical, military, and automotive, the company is AS9100 and ISO accredited.

Houston Heat Treat, based in Houston, TX, provides thermal processing services. Specializing in case hardening (carburizing), nitriding, and carbonitriding, they also offer annealing, normalizing, and hardening processes. The company utilizes advanced facilities and metallurgical expertise to serve diverse industrial applications.

Based in Montclair, CA, High Speed Steel Treating Co. INC is a full-service heat treatment facility. With over 60 years of combined experience, they provide quality and dependable heat treatment services. The company consistently meets customer requirements and stays current with technological advancements.

Based in Eastlake, OH, HI TecMetal Group Inc. specializes in heat treating, brazing, and welding services. Since 1943, this company has provided a wide range of thermal processing and metal treatment services from multiple Northern Ohio locations. They serve diverse industries including aerospace, automotive, transportation, industrial, and manufacturing.

Heat Treating Technologies Inc. based in Lima, OH, provides industrial heat treating services. The company leverages decades of experience and reliable lab services to ensure projects are executed flawlessly. They offer a range of capabilities to assist customers with their specialized heat treatment needs.

Based in Elkhorn, WI, Hudapack Metal Treating, Inc. provides comprehensive commercial heat treating solutions. A three-plant operation founded in 1985, they specialize in atmosphere hardening, carburizing, induction hardening, nitriding, annealing, and vacuum processing for diverse metal components.

Based in Jackson, MI, Industrial Steel Treating Company provides heat treating services, specializing in induction hardening for steel fasteners. As one of the largest facilities in the United States, it serves Midwest manufacturers. The company is ISO 9001:2015-QMS certified and a Ford Motor Company Preferred Supplier, offering fast delivery.

Based in Fairport, NY, Jasco Heat Treating is a family-owned company providing comprehensive heat treatment services since 1978. Specializing in processes like carburizing (case hardening), carbonitriding, neutral hardening, tempering, annealing, and induction hardening, they serve various industrial applications.

JGS-Nitriding, LLC, based in Marinette, WI, specializes in plasma ion nitriding and ferritic nitro-carburizing. The company offers PLASOX® post-plasma oxidation for superior corrosion protection. Their diffusion processes enhance surface hardness, wear resistance, and fatigue strength, providing a durable alternative to chrome plating without dimensional changes.

Based in Houston, TX, K & D Heat Treat Inc. provides comprehensive heat treating services, operating 24 hours a day, 7 days a week since 1990. The company specializes in various processes, including furnace operations and metal shot blasting, serving industrial clients with metallurgical needs.

Based in Houston, TX, Lark Heat Treating specializes in advanced case hardening and diverse heat treatment solutions. They offer state-of-the-art carbonitriding, carburizing, gas nitriding, stress relieving, solution anneals, and quench and temper services. Founded in 1978, the company serves various industries, including local machine shops and international petroleum.

Based in Houston, TX, Lone Star Heat Treating Corp offers a wide range of heat-treating services, including controlled atmosphere case hardening, batch, and induction hardening. The company also provides mechanical testing, commercial straightening, and NDT services. Certified to AS 9100 and ISO/IEC 17025 accredited, it serves industrial clients.

Based in Longview, TX, LST Heat Treating offers comprehensive heat treating services for various industrial applications. The company is ISO 9001 certified and a member of MTI, adhering to industry standards. They serve sectors including agricultural, heavy equipment, oil and gas, and automotive industries.

Based in New Baltimore, MI, Magnum Induction specializes in induction heat treating services. They accommodate large and unique part configurations, including extreme diameters and lengths for rolls, shafts, and gears. With over 40 years of experience, the company utilizes advanced technology and certified engineers to meet hardening requirements.

Based in Conroe, TX, Magnum Metal Treating Inc. specializes in commercial heat treating services, prominently offering case hardening through carburizing. Their capabilities also include carbonitriding, neutral hardening, annealing, normalizing, stress relieving, tempering, and various other heat treatment processes for industrial components and materials.

Materials Development Corporation offers BOROFUSE, a specialized thermochemical surface hardening process for metal and composite components. This boriding treatment provides superior protection against abrasion, erosion, and wear. Serving aerospace, oil & gas, and manufacturing sectors, MDC helps clients enhance part performance and extend component life.

Based in Carol Stream, IL, Metals Technology Corporation provides comprehensive heat treating services. They specialize in case hardening processes such as Gas Nitriding, alongside vacuum heat treating and induction heat treating. Serving the Greater Chicago Metropolitan area, the company emphasizes quality assurance and quick turnaround with a skilled metallurgical team.

Based in Murfreesboro, TN, Mid-South Metallurgical Co provides comprehensive heat treating services. The company specializes in vacuum heat treating and atmosphere heat treating, alongside black oxide coating. They are known for their fast, exceptional work and ease of collaboration, serving various industrial clients with metallurgical needs.

Mil-Spec Heat Treating, based in Huntington Beach, CA, specializes in industrial heat treatment services designed to meet military specifications. The company provides a range of metallurgical processes, including various forms of case hardening, utilizing its own facilities and equipment to process components for critical applications.

Modern Heat Treat, established in 2009, is a heat treating metal facility in Richland Hills, TX. They specialize in case hardening processes like Carbonitriding and Carburizing, alongside alloy quench and temper, and vacuum heat treating. Serving industrial B2B clients in aerospace, oil and gas, and construction sectors, they operate from a 25,000 sq ft facility.

National Heat Treat provides professional heat treatment services, including case hardening, from its facility in Houston, Texas. The company specializes in enhancing the surface hardness and wear resistance of various metal components through precise thermal processing for industrial clients.

Based in Fontana, CA, National Thermal Processing specializes in comprehensive heat treating services. They provide annealing, neutral hardening, and blasting, in addition to hardness testing. The company offers essential thermal processing solutions, ensuring material integrity and performance for various industrial applications through their specialized treatments.

Based in Waterbury, CT, Nelson Heat Treating Co. Inc. provides comprehensive hardening and heat treating services nationwide. They specialize in light to deep case hardening, carburizing, carbon restoration, annealing, and tool & die hardening for various industrial components. The company has been in business for 68 years.

Based in Blairsville, GA, North Georgia Heat Treat specializes in providing comprehensive thermal processing services. As a dedicated heat treatment facility, they offer essential capabilities, including various forms of case hardening. The company focuses on enhancing material properties and ensuring quality for industrial and commercial manufactured components.

Based in Zelienople, PA, Penna Flame Industries, Inc. specializes in diverse surface hardening services, including flame, robotic, and induction hardening. Serving steel, mining, railroad, machine-tool, and automotive industries since 1968, they ensure increased wear resistance for parts, typically with a 4-6 business day turnaround.

Phoenix Heat Treating, located in Phoenix, AZ, provides extensive heat treatment and consulting services, specializing in resolving difficult processing problems. With over 100 years of experience, they offer vacuum, aluminum, salt, and atmosphere processing, metal finishing, and specialized services such as nitriding and stress relieving.

Metal Plasma Technology, based in Valencia, CA, specializes in Ion Nitriding and Nitrocarburizing. They provide case hardening for a wide variety of steel alloys, serving aerospace, defense, automotive, and medical industries. The company is fully NADCAP accredited and holds major industry approvals.

Based in Burbank, CA, Quality Heat Treating, Inc. offers advanced thermal processing services, altering metal's structural composition for precise metallurgical properties. They ensure exact control of heating and cooling metals for high-performance components. Serving aerospace, defense, energy, and transportation industries, the company is NADCAP accredited.

Located in Milwaukee, WI, Service Heat Treating provides high-quality carburizing, carbonitriding, annealing, and neutral hardening services. Their facility features large atmosphere integral quench batch furnaces, advanced vacuum heat treating, and specialized nitrocarburizing/nitriding. They process parts up to 72” long and 5000 lbs, with an ISO 9001:2015 certified quality system.

Based in El Cajon, CA, Solar Atmospheres provides commercial vacuum heat treating and brazing services. Specializing in vacuum thermal processing, including oil quench, they serve aerospace, medical, and additive manufacturing industries. The company operates over 90 furnaces with significant capacity across multiple US locations.

Based in Fort Worth, TX, Southwest Metal Treating specializes in carburizing services to enhance the durability and performance of metal components. With 40 years of experience, they serve industries such as cutlery, hand tool, industrial machinery, and turbine manufacturing.

Based in Houston, TX, Specialty Heat Treat, Inc. provides advanced industrial metal heat treatment services. Their expertise includes annealing, hardening, tempering, and stress relieving for diverse industries like oil and gas, aerospace, and automotive. They commit to high-quality standards and quick delivery using state-of-the-art equipment.

Based in Cincinnati, OH, Cincinnati Steel Treating Company offers IATF and ISO certified heat treating services. They specialize in case hardening processes, including carburizing, carbonitriding, nitriding, flame, and induction hardening. Serving industrial clients for over 80 years, they enhance part performance and durability.

Superior Heat Treat LLC, based in Clinton Township, MI, offers comprehensive commercial heat treatment services with an 80-year legacy. This ISO 9001:2015 certified facility specializes in processes like carburizing, hardening, and ferritic nitrocarburizing. They cater to industrial markets including tool and die, machine tool, and military sectors.

Based in Round Rock, TX, Texas Heat Treating, Inc. provides comprehensive heat treating services, including processes for case hardening, to various industries. The company is certified to AS9100D, ISO 9001, and ISO 17025, ensuring compliance with rigorous aerospace and quality standards for its operations.

Based in Hayward, CA, ThermoFusion Inc. directly provides industrial heat treating and brazing services. Their offerings include critical case hardening processes like carburizing and nitriding, along with annealing and stress relieving. Operating 24/5 from their US facility, the Nadcap certified company delivers quality thermal processing solutions.

Based in Waukesha, WI, ThermTech is a commercial heat-treating company specializing in case hardening services. They provide carburizing heat treatment, primarily serving the specific and demanding needs of the Oil & Gas industry.

Based in Pomona, CA, Tri-J Metal Heat Treating Inc. offers metal heat treating services, including case hardening via carburizing and carbonitriding, neutral hardening, austempering, and age hardening. With over 80 years experience, they serve alloy and tool steels. The company is ISO 9001:2015 and AS9100:2016 certified.

Established in 2002, USA Heat Treating provides commercial heat treatment services from its Cleveland, OH facility. The company specializes in continuous austemper, neutral-hardening, and stress relieving for diverse manufacturing industries. Committed to quality and turnaround, USA Heat Treating is ISO 9001 certified to meet IATF automotive supplier requirements.

Based in Anaheim, CA, VaporKote Coating Technologies, established in 1987, offers advanced corrosion and erosion protection. The company directly provides boronizing and aluminizing services for large components using state-of-the-art furnaces. They formulate on-site powder mixes, delivering cost-effective solutions to extend equipment lifespan across diverse industries.

Based in Garden Grove, CA, Varco Heat Treating Company has delivered reliable metal heat treating services since 1908. This NADCAP, ISO 9001:2015, and AS9100D accredited provider offers high-quality services, catering to specific project needs. They ensure timely delivery for diverse industrial applications.

Westside Flame Hardening, Inc. based in Westland, MI, offers comprehensive services in flame hardening, induction hardening, tempering, straightening, powder coating, shot blasting, and sand blasting. The company delivers quality and reliable services with a commitment to competitive pricing and on-time delivery, focusing on defect prevention.

Based in Houston, TX, Worldwide Heat Treat provides comprehensive heat treating services, including hardening, quenching, tempering, and metallurgy. The company operates with 40-foot furnaces capable of handling larger materials and offers convenient pickup and delivery services.

Bodycote is a leading global provider of heat treatment and metallurgical thermal processing services. They specialize in a range of services including case hardening (carburising), nitriding, and carbonitriding, serving various industrial sectors. With numerous facilities across the United States, Bodycote offers critical metal treatment solutions to enhance component performance and durability.

BorTec USA LLC, based in Johnson City, TN, specializes in high-tech wear protection for metal parts. They offer case hardening services such as BOROCOAT® boronizing, BORINOX® stainless steel hardening, and nitriding. These processes increase operational safety and extend service life for diverse industrial applications.

Based in Fraser, MI, Engineered Heat Treat, LLC specializes in special process heat treating services for parts. Established in 1959, the company offers a variety of metallurgical engineering processes using advanced, in-house technology to meet customer specifications.

Based in Santa Fe Springs, CA, HTA Los Angeles provides advanced metallurgical services including Cryotemp® Processing, vacuum brazing, and ASTM E18 laboratory testing. The company specializes in heat treatments like plasma nitriding and precipitation hardening, leveraging over 50 years of combined expertise for industrial clients.

Aalberts Surface Technologies provides advanced metal treatment solutions, specializing in comprehensive heat treatment processes. These include case hardening methods like carburizing, carbonitriding, nitriding, and induction hardening, alongside vacuum hardening, quenching, and tempering. They serve diverse industrial applications.

Advanced Heat Treat Corp. provides commercial heat treatment services and metallurgical solutions from its facilities across Iowa, Michigan, and Alabama. Specializing in surface treatments, the company helps resolve issues related to wear, corrosion, and abrasion, enhancing part strength and durability. They offer over 20 treatment options.

Based in Greenville, SC, Bluewater Thermal Solutions provides carburizing and carbonitriding services designed to improve wear resistance, fatigue strength, and increase surface hardness. The company is NADCAP accredited, offering specialized heat treatment solutions for industrial applications.

Curtiss-Wright Surface Technologies provides advanced thermal processing services, specializing in case hardening solutions like gas and vacuum carburizing, nitriding, and induction hardening. With multiple facilities across the United States, they enhance component performance and extend service life through comprehensive surface engineering and heat treatment for diverse industrial applications.

Based in Detroit, MI, Detroit Edge specializes in precision flame hardening services. They enhance durability for critical components such as die sections, gears, and rails. The company provides custom solutions, focusing on improving the wear resistance and lifespan of metal parts for various industrial applications.

Based in Chattanooga, TN, Flame Treating Systems, Inc. specializes in innovative flame hardening services and custom-designed systems. Founded in 1973, the company combines time-tested techniques with modern technology to solve hardening problems for clients, also offering equipment for brazing, forging, welding, and fusion.

HTS AmeriTek, LLC provides expert on-site and off-site metal heat treating services from locations including La Porte, TX. Specializing in precision metal surface and post-weld heat treatments, they enhance durability and performance for various alloys. HTS AmeriTek serves refinery, fabrication, and petrochemical industries.

Based in Pontiac, Michigan, Heat Treating Services, Inc. provides thermal processing services for automotive, aerospace, and industrial sectors. Their state-of-the-art facility specializes in comprehensive case hardening, offering methods like carburizing, carbonitriding, nitriding, and induction hardening, alongside annealing, normalizing, and stress relieving services.

Based in Crystal Lake, IL, Induction Heat Treating Corporation specializes in induction heat treating services. They provide induction hardening, induction case hardening, induction tempering, and induction annealing. Certified to ISO 9001:2015 and CQI9, the company offers high-quality metallurgical solutions for various industrial applications.

ITD Precision, located in Houston, TX, specializes in metal stamping and comprehensive heat treating, including Austemper processing. They also offer e-coating, insert molding, and light assembly services. With over 70 years of experience, ITD provides turn-key solutions for diverse industries like automotive, aerospace, and oilfield.

Lohman Gunsmith, based in Houston, TX, specializes in firearm services, including color case hardening for actions, handguns, rifles, shotguns, and single-action revolvers. They utilize a unique formula involving bone and charcoal for the process. Their offerings also include bluing, Cerakote applications, repairs, and custom firearm builds.

Based in Sacramento, CA, Metal Finishing Group provides a comprehensive suite of metal finishing processes from one location. With extensive capabilities and large-scale operations, they handle projects of all sizes. Tank sizes accommodate a wide range of part dimensions for critical applications in various sectors.

Midwest Thermal-Vac specializes in low-pressure vacuum carburizing and heat treating for case hardening applications. Serving Aerospace, Motorsports, and Commercial industries, the company maintains ISO 9001:2015, AS9100 Rev. D, and AMS2750 standards. They utilize the Infracarb process to deliver precise, consistent results with reduced part distortion.

Based in Sunnyvale, CA, Pacific Heat Treating Co. provides expert heat treating services with a focus on quality craftsmanship. With over 40 years in business, the company is known for competitive pricing, reliable turnaround times, and free pickup and delivery. They also assist clients with problem-solving and process optimization.

Paulo is a major commercial thermal processing company based in St. Louis, MO. They provide precise, repeatable thermal processing services for mission-critical parts, supporting manufacturers in aerospace, automotive, and other industries. Paulo offers a wide variety of processing needs, from simple to complex applications.

Based in Clintonville, WI, Precision Thermal Processing offers comprehensive thermal process services, including heat treating, hardening, normalizing, annealing, and surface treatments. They also provide metallurgical analysis and pick-up/delivery services. Serving industries like transportation, tool & die, and agriculture, the company operates with ISO 9001 and ISO 17025 accreditations.

Q Tech Heat Treat Inc. based in Dallas, TX, provides industrial heat treatment services from its own facility. Specializing in processes like carburizing (case hardening), carbonitriding, and neutral hardening, the company enhances metal properties. They offer reliable solutions for diverse manufacturing and industrial applications.

Based in Orange, CA, Scarrott Metallurgical Company provides high vacuum heat treating and brazing services. They specialize in processing aerospace and medical grade materials, ensuring pristine, clean atmospheres for thermal processes during final production.

Based in Newport, AR, Southwest Steel Processing LLC provides a comprehensive suite of heat treating services, including normalizing, quench and temper, annealing, and induction hardening. The company serves critical industries such as railcar, oil & gas, mining, construction, and gear manufacturing.

S & P Heat Treating Inc. based in Warwick, RI, provides metal treatment services. Degreed metallurgists with 30 years' experience specialize in heat treatment, including vacuum furnace processes to enhance metal hardness. ISO 9001:2015 certified, they serve industrial clients like Navy, Ford, GM, and Nuclear sectors.

Specialty Steel Treating (SST) is an ISO certified metal and steel heat treatment company operating over 60 years. Based in Farmington Hills, MI, SST provides precision-controlled heat treatment services including case hardening, tempering, carburizing, quenching, and vacuum treatments. They serve industrial sectors like aerospace, rail, and automotive.

State Heat Treating Co, based in Grand Rapids, MI, is a direct provider of industrial heat treatment services. They specialize in enhancing metal properties through various processes. Their capabilities include case hardening, ensuring increased surface hardness and wear resistance for critical components across diverse manufacturing sectors.

Based in South El Monte, CA, Supreme Steel Treating Inc. has provided comprehensive heat treatment services since 1982. They specialize in induction hardening, carburizing, and carbonitriding for various steels and alloys. The company also offers annealing, precipitation hardening, stress relieving, tempering, and cryogenic treatments.

Based in Orange, CA, Thermal-Vac Technology, Inc. offers vacuum heat treating, brazing, and coating services. Specializing in demanding aerospace and defense applications, the company provides critical components for rocket engine nozzles and injectors. Thermal-Vac holds NADCAP approval for its heat treating and brazing processes, ensuring precise, reliable results.

Zion Industries, Inc. offers induction heat treating and process development for metal parts, specializing in high-volume production across facilities in Ohio, Michigan, and North Carolina. The company provides services like hardening, bonding, and softening metals, including case hardening applications, for industrial clients.

Based in South Gate, CA, Accurate Ion Technologies specializes in ion nitriding, a precise thermochemical case hardening process for ferrous and non-ferrous materials. They serve critical industrial sectors including aerospace, medical, automotive, and oil & gas, utilizing computer-controlled furnaces for large components.

Expanite specializes in advanced surface hardening and heat treatment processes for stainless steel and titanium components. Utilizing proprietary technology, the company offers environmentally friendly solutions that enhance durability and corrosion resistance. Expanite serves various industrial sectors globally, providing in-house treatment facilities for demanding applications.

Based in Cleveland, Ohio, General Metal Heat Treating provides comprehensive metal heat treatment services. They specialize in case hardening methods like carburizing and carbonitriding, in addition to neutral hardening, annealing, and induction heat treating. Serving diverse industrial clients, the company offers quality processing and laboratory services.

Based in Peninsula, OH, Induction Hardening Specialists provides comprehensive induction hardening services, particularly specializing in gear tooth hardening. The company is committed to quality workmanship and customer service, serving various dynamic industries with expertise in heat treating metal components.

Based in Meadville, PA, Peters' Heat Treating, Inc. provides commercial heat treatment services. The company specializes in carburizing (case hardening), nitriding, and vacuum heat treating. They offer diverse processes including neutral hardening, tempering, annealing, and shot peening, serving industrial clients as an ISO 9001:2015/AS9100D certified facility.

Based in Fort Wayne, IN, Precision Heat Treating Corporation (PHTC) is a commercial heat treater providing extensive services. PHTC specializes in case hardening processes like carburizing, carbonitriding, and nitriding, along with through hardening, annealing, and tempering. They serve a wide range of industrial clients.

Progressive Metal Service provides specialized nitriding services designed to enhance surface hardness and wear resistance for diverse metal components. They offer tailored solutions to meet specific client requirements, ensuring improved durability and performance in various industrial applications.

Pinson Valley Heat Treating is a commercial heat treating company based in Pinson, AL. They specialize in a wide range of services for industrial clients, including gas carburizing (case hardening), neutral hardening, carbonitriding, normalizing, annealing, and tempering. The company supports various manufacturing needs with comprehensive thermal processing solutions.

Based in Fort Worth, TX, Thermal Specialties offers comprehensive heat treatment services. They specialize in various case hardening processes, including carburizing, carbonitriding, nitriding, and induction hardening. Operating facilities in Fort Worth and Tulsa, OK, the company serves diverse industrial clients seeking precise material property enhancements.