--- title: Home description: National Thermal Processing specializes in heat treating for multiple industries including aerospace and automotive racing. --- [Skip to content](https://nationalthermalprocessing.com#main-content) [![National Thermal Logo](https://nationalthermalprocessing.com/hs-fs/hubfs/Logo-1.png?width=153&height=150&name=Logo-1.png)](https://www.nationalthermalprocessing.com?hsLang=en) - [Home](https://nationalthermalprocessing.com/) - [Services](https://nationalthermalprocessing.com/services) Show submenu for Services - [Heat Treating](https://nationalthermalprocessing.com/heat-treating) - [Annealing](https://nationalthermalprocessing.com/annealing) - [Neutral Hardening](https://nationalthermalprocessing.com/neutral-hardening) - [Blasting](https://nationalthermalprocessing.com/blasting) - [Hardness Testing](https://nationalthermalprocessing.com/hardness-testing) - [About](https://nationalthermalprocessing.com/about) - [Contact](https://nationalthermalprocessing.com/contact) Open main navigation Close main navigation - [Home](https://nationalthermalprocessing.com/) - [Services](https://nationalthermalprocessing.com/services) Show submenu for Services - [Heat Treating](https://nationalthermalprocessing.com/heat-treating) - [Annealing](https://nationalthermalprocessing.com/annealing) - [Neutral Hardening](https://nationalthermalprocessing.com/neutral-hardening) - [Blasting](https://nationalthermalprocessing.com/blasting) - [Hardness Testing](https://nationalthermalprocessing.com/hardness-testing) - [About](https://nationalthermalprocessing.com/about) - [Contact](https://nationalthermalprocessing.com/contact) - [Print Our Certificates](https://nationalthermalprocessing.com/certificates) [Print Our Certificates](https://nationalthermalprocessing.com/certificates?hsLang=en) ![ntp logo banner](https://nationalthermalprocessing.com/hs-fs/hubfs/website%20header%204-1.jpg?width=2000&height=619&name=website%20header%204-1.jpg "ntp logo banner") ## National Thermal Processing --- Specialized Heat Treating in Southern California ## National Thermal Processing Specialized Heat Treating in Southern California ### All Electric Facility ### 25+ Years of Combined Experience ### Highly Trained Personnel Our Southern California facility is powered by solar technology, limiting emissions and our carbon footprint. Our management team as over 25 years of combined experience in Heat Treating Facilities. Each team member goes through an extensive training process focused on quality and precision. ### All Electric Facility ### 25+ Years of Combined Experience ### Highly Trained Personnel ## Services --- ## Services ![N-1 Open N-2 Closed (2)](https://nationalthermalprocessing.com/hubfs/HQ%20Images/N-1%20Open%20N-2%20Closed%20(2).jpg) ### Heat Treating --- ![Neutral Hardening](https://nationalthermalprocessing.com/hubfs/IMG_20140521_104706320%20copy.jpg) ### Neutral Hardening --- ![Blasting](https://nationalthermalprocessing.com/hubfs/IMG_7575-1.jpeg) ### Blasting --- ![Hardness Testing](https://nationalthermalprocessing.com/hubfs/IMG_7557-1.jpeg) ### Hardness Testing --- [View Services](https://nationalthermalprocessing.com/services?hsLang=en) ## Industries --- ## Industries ![airplane](https://nationalthermalprocessing.com/hubfs/airplane.jpg "airplane") --- ### Aerospace We specialize in the heat treatment of aerospace components, working with the manufacturers of top aerospace companies. ![IMG\_4597-4](https://nationalthermalprocessing.com/hs-fs/hubfs/IMG_4597-4.jpg?width=2048&height=1110&name=IMG_4597-4.jpg "IMG_4597-4") --- ### Automotive Racing Heat treating improves the strength and durability of important automotive parts, such as engine, powertrain, drivetrain, and suspension components.   [Speak with a Specialist](https://nationalthermalprocessing.com/contact?hsLang=en) ## Working With --- ![parker logo](https://nationalthermalprocessing.com/hs-fs/hubfs/Logos/parker-hannifin_owler_20190101_115713_original.jpg?width=1014&height=259&name=parker-hannifin_owler_20190101_115713_original.jpg) ![logo](https://nationalthermalprocessing.com/hs-fs/hubfs/Logos/Eaton.png?width=195&height=57&name=Eaton.png) ![hartwell logo](https://nationalthermalprocessing.com/hs-fs/hubfs/Logos/images2.jpg?width=277&height=85&name=images2.jpg) ![robinson](https://nationalthermalprocessing.com/hs-fs/hubfs/robinson.png?width=195&height=93&name=robinson.png) ![northrop](https://nationalthermalprocessing.com/hs-fs/hubfs/Logos/northrop.jpg?width=340&height=71&name=northrop.jpg) ![ULA](https://nationalthermalprocessing.com/hs-fs/hubfs/Logos/ULA.png?width=414&height=147&name=ULA.png) ![ancra-international-logo](https://nationalthermalprocessing.com/hs-fs/hubfs/ancra-international-logo.jpg?width=410&height=80&name=ancra-international-logo.jpg) ## Testimonials --- ## Industries > > "Working with National Thermal has been a game changer for us. Their team provides exceptional service backed by deep product knowledge.  I would highly recommend them to anyone looking for quick turn around times and quality work." > > > > Paul Keegan, Apex Specialty Metals, Inc. > > "We have been a customer of National Thermal Processing, Inc. for many years and can always count on them for quality, excellent service and pricing. Their team consistently goes above and beyond to make sure we know that their customers are the priority." > > > > Charlene Smith, Continental Precision Stamping, Inc.  > > "National Thermal has been a great resource for my heat treating needs. Quick lead times, great pricing, & excellent customer service. The quality of their work is consistent & their team is highly experienced. Always a pleasure doing business with them." > > > > Juan Hernandez, Earle M Jorgensen Company > > "National Thermal Processing has been great to work with! Their team is professional, fast and always delivers high-quality results. Brendon Welsh, the general manager, is especially helpful. Easy to talk to and always makes sure things go smoothly. Highly recommend!" > > > > Dena Santos, KAP Manufacturing > > "I highly recommend this business. The product quality is consistently outstanding, exceeding my expectations every time. Efficiency and punctuality are hallmarks of their service. Pricing is fair and transparent - definitely value for your money. Their staff is not only friendly but also highly skilled. We have been a customer for 10 + years." > > > > Danny Metsers, HSG Manufacturing > > "I have nothing negative to say about National Thermal Processing. Their staff is quick to respond to requests/ questions. Their turn around time is outstanding. Brendon and Russ are always willing and open to working with PDI to support our business needs. National Thermal is a great partner to have for your Heat Treating needs." > > > > Ruben Valdez, PneuDraulics ## Accreditations --- ## Accreditations ![Certificate Nadcap AQS AC7004](https://nationalthermalprocessing.com/hs-fs/hubfs/Certificate%20Nadcap%20AQS%20AC7004.jpg?width=195&height=150&name=Certificate%20Nadcap%20AQS%20AC7004.jpg "Certificate Nadcap AQS AC7004") ![Nadcap](https://nationalthermalprocessing.com/hs-fs/hubfs/Nadcap.jpg?width=360&height=150&name=Nadcap.jpg "Nadcap") ![Certificate Nadcap (Aerospace) Heat Treating audit # 207636](https://nationalthermalprocessing.com/hs-fs/hubfs/Certificate%20Nadcap%20(Aerospace)%20Heat%20Treating%20audit%20%23%20207636.jpg?width=194&height=150&name=Certificate%20Nadcap%20(Aerospace)%20Heat%20Treating%20audit%20%23%20207636.jpg "Certificate Nadcap (Aerospace) Heat Treating audit # 207636") ![Certificate Nadcap AQS AC7004](https://nationalthermalprocessing.com/hs-fs/hubfs/Certificate%20Nadcap%20AQS%20AC7004.jpg?width=324&height=250&name=Certificate%20Nadcap%20AQS%20AC7004.jpg "Certificate Nadcap AQS AC7004") ![Nadcap](https://nationalthermalprocessing.com/hs-fs/hubfs/Nadcap.jpg?width=456&height=190&name=Nadcap.jpg "Nadcap") ![Certificate Nadcap (Aerospace) Heat Treating audit # 207636](https://nationalthermalprocessing.com/hs-fs/hubfs/Certificate%20Nadcap%20(Aerospace)%20Heat%20Treating%20audit%20%23%20207636.jpg?width=324&height=250&name=Certificate%20Nadcap%20(Aerospace)%20Heat%20Treating%20audit%20%23%20207636.jpg "Certificate Nadcap (Aerospace) Heat Treating audit # 207636") [Print Certificates](https://nationalthermalprocessing.com/certificates?hsLang=en) ## Aerospace We specialize in the heat treatment of aerospace components, working with the manufacturers of top top aerospace companies. ## Automotive Racing  We specialize in the heat treatment of aerospace components, working with the manufacturers of top top aerospace companies. ## Working With --- ![Working with logos mobile site 2](https://nationalthermalprocessing.com/hubfs/Working%20with%20logos%20mobile%20site%202.jpg "Working with logos mobile site 2") [facebook-f icon](https://www.facebook.com/Nationalthermal/) [linkedin-in icon](https://www.linkedin.com/company/national-thermal-processing/about/) --- [![National Thermal Processing Logo](https://nationalthermalprocessing.com/hubfs/Logo-1.jfif "National Thermal Processing Logo")](http://www.Nationalthermalprocessing.com) 14651 Mallory Drive, Fontana, CA 92335 Copyright © 2023, National Thermal Processing [Privacy Policy](https://nationalthermalprocessing.com/privacy-policy?hsLang=en)