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Heat Treatment & Thermal Processing Services

Complete thermal processing solutions for aerospace, defense, and industrial metals. From normalizing and quench & tempering to stress relieving and precipitation hardening—we deliver certified heat treatment through our network of NADCAP-approved facilities. Fast turnaround with full documentation and strip chart recording.
Industrial heat treatment furnace processing aerospace alloy steel components with temperature monitoring

Comprehensive Thermal Processing for Critical Applications

Our heat treatment services transform material properties to meet your exact specifications. Working with NADCAP-certified commercial and aerospace heat treaters, we ensure consistent results, complete documentation, and competitive pricing on every thermal processing order.

Normalizing

Refine grain structure and relieve internal stresses from prior processing. Normalizing produces uniform mechanical properties and improved machinability in carbon and alloy steels.

Austenitizing

Heat material to the austenite phase temperature range in preparation for quenching. Critical first step in achieving target hardness and mechanical properties.

Quench & Tempering

Achieve specified hardness and strength through controlled quenching followed by tempering. The foundation of high-strength aerospace steel heat treatment.

Stress Relieving

Reduce residual stresses from machining, welding, or forming operations without significantly affecting hardness or strength. Essential for dimensional stability.

Annealing

Soften material for improved machinability or restore ductility after cold working. We offer full annealing and spheroidize annealing for various applications.

Precipitation Hardening

Age-hardening treatment for PH stainless steels and nickel alloys. Achieve high strength while maintaining corrosion resistance in 17-4PH, 15-5PH, and similar grades.

NADCAP Approved Network

Certified Thermal Processing for Aerospace & Defense

Heat treatment is critical to achieving the mechanical properties your application demands. Through our close working relationships with commercial and aerospace NADCAP heat treaters, we provide quick turnaround and excellent volume pricing on all thermal processing services. Every heat treatment order includes complete documentation—strip chart recordings and furnace charts are available upon request to meet your quality requirements and OEM specifications.

Heat treatment furnace control panel showing temperature monitoring and strip chart recording
Thermal Processing Expertise

Our Heat Treatment Processes

From softening treatments that improve machinability to hardening processes that maximize strength, our thermal processing services cover the full range of aerospace and industrial requirements.

Normalizing
Heat to above critical temperature, hold, and air cool. Produces uniform grain structure and consistent mechanical properties throughout the material.
Austenitizing
Controlled heating to transform microstructure to austenite phase. Foundation for subsequent quenching and hardening operations.
Quench & Temper
Rapid cooling followed by controlled reheating. Achieves target hardness, strength, and toughness balance for high-performance applications.
Stress Relieving
Sub-critical heating to reduce residual stresses. Improves dimensional stability and reduces distortion risk in subsequent operations.
Annealing
Full annealing softens material for machining. Restores ductility and relieves stresses from cold working or prior heat treatment.
Spheroidize Annealing
Produces spheroidal carbide structure for maximum softness and machinability. Ideal for high-carbon and alloy steels requiring extensive machining.
Precipitation Hardening
Age-hardening for PH stainless steels and nickel alloys. Controlled aging develops high strength while maintaining corrosion resistance.
Full Documentation
Strip chart recordings, furnace charts, and complete certifications. All documentation meets aerospace OEM and military specification requirements.

Engineered for Performance

Our heat treatment services combine NADCAP-approved processing with rigorous documentation to deliver consistent, certified results on every order.

Achieving the right mechanical properties requires precise control of time, temperature, and atmosphere throughout the heat treatment cycle. Through our established relationships with commercial and aerospace NADCAP heat treaters, we provide the thermal processing expertise your critical applications demand. Whether you need quench and tempering to achieve maximum hardness, stress relieving to ensure dimensional stability, or precipitation hardening for PH stainless steels, our network delivers consistent results with quick turnaround and competitive pricing. Combined with our cutting, machining, and testing services, we offer complete material solutions from raw stock to certified, heat-treated components.
7+ Processes
Thermal Processing Options
NADCAP
Approved Heat Treaters
Full
Strip Charts & Certifications
Customer Success

Industry Success Stories

Discover how our heat treatment services have helped aerospace, defense, and industrial customers achieve critical mechanical properties and meet demanding specifications.

"Aero-Vac coordinates our entire heat treatment process—from material supply through quench and temper to final testing. Having one point of contact for 4340 processed to AMS 6414 specs saves us significant coordination time and ensures consistency."

MT

Michael Torres

Materials Engineer, Aerospace Structures Inc.

"We switched to Aero-Vac for our 17-4PH precipitation hardening needs after experiencing inconsistent results elsewhere. Their NADCAP heat treaters deliver to spec every time, and the documentation is always complete. Exactly what aerospace quality requires."

AF

Amanda Foster

Quality Director, Precision Defense Components

"The stress relieving service has been crucial for our machined components. Parts that used to distort in final machining now hold tolerance perfectly. Aero-Vac understands the entire process chain, not just individual operations."

RK

Richard Kim

Manufacturing Manager, Advanced Machining Solutions

"Aero-Vac coordinates our entire heat treatment process—from material supply through quench and temper to final testing. Having one point of contact for 4340 processed to AMS 6414 specs saves us significant coordination time and ensures consistency."

MT

Michael Torres

Materials Engineer, Aerospace Structures Inc.

"We switched to Aero-Vac for our 17-4PH precipitation hardening needs after experiencing inconsistent results elsewhere. Their NADCAP heat treaters deliver to spec every time, and the documentation is always complete. Exactly what aerospace quality requires."

AF

Amanda Foster

Quality Director, Precision Defense Components

"The stress relieving service has been crucial for our machined components. Parts that used to distort in final machining now hold tolerance perfectly. Aero-Vac understands the entire process chain, not just individual operations."

RK

Richard Kim

Manufacturing Manager, Advanced Machining Solutions

Frequently Asked Questions

What heat treatment processes do you offer?
We offer comprehensive thermal processing including normalizing, austenitizing, quench and tempering, stress relieving, annealing, spheroidize annealing, and precipitation hardening. These processes are performed through our network of NADCAP-approved commercial and aerospace heat treaters.
Are your heat treatment facilities NADCAP certified?
Yes, we work exclusively with NADCAP-approved heat treatment facilities for aerospace and defense work. Our close working relationships with these certified heat treaters ensure consistent quality, quick turnaround, and competitive volume pricing.
What documentation do you provide with heat-treated materials?
We provide complete documentation including heat treatment certifications, strip chart recordings, and furnace charts upon request. All documentation meets aerospace OEM and military specification requirements for full traceability and compliance.
What materials can you heat treat?
We heat treat the full range of aerospace metals including alloy steels (4130, 4140, 4340, 300M, HP9-4-20, HP9-4-30), stainless steels (17-4PH, 15-5PH, 13-8MO, 400 series), and nickel alloys. Contact us with your specific material and specification requirements.
Can you heat treat material I've already machined?
Yes, we can coordinate heat treatment for customer-supplied materials, whether raw stock or partially machined components. We'll work with you to ensure the proper process is selected to meet your final property requirements while minimizing distortion.
What is your typical turnaround time for heat treatment?
Turnaround varies by process and volume, but our established relationships with multiple heat treaters allow us to offer quick turnaround on most orders. Contact us with your timeline requirements and we'll confirm availability.

Our Heat Treatment Network

Through our partnerships with NADCAP-certified facilities, we provide thermal processing services to customers throughout North America with consistent quality and competitive pricing.

Kalama, Washington

Coordination & Logistics Center

NADCAP Approved

Aerospace Certified

Defense Qualified

Commercial Grade

Full Traceability

Strip Chart Recording

Quality Excellence
Quality Standards and Certifications
NADCAP Approved Network
All aerospace heat treatment performed at NADCAP-certified facilities meeting the highest industry standards for thermal processing.
Strip Chart Recording
Complete time-temperature documentation with strip charts and furnace records available for every heat treatment lot.
OEM Specification Compliance
Heat treatment processes meet Bombardier, Honeywell, Airbus, Lockheed, General Dynamics, and other major OEM requirements.
Ready to Get Your Heat Treatment Project Started?
Let's discuss your thermal processing requirements today
Call us at 1-877-AEROVAC (237-6822) or email [email protected] for immediate assistance. Our expert team is ready to provide fast quotes on heat treatment, thermal processing, and complete material solutions.
Contact Us: Port of Kalama, 2615 N. Hendrickson Dr., Kalama, WA 98625 USA
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