Heat Treating Capabilities

Heat Treating Capabilities at Sypris Technologies

Sypris Technologies delivers tightly controlled, production-scale heat treating processes designed to meet critical metallurgical requirements across high-performance applications. Our in-house thermal processing capabilities are fully integrated with upstream forging and machining operations, enabling us to control microstructure, hardness, and mechanical properties with repeatable precision.

We specialize in heat treating heavy-duty components that require strict adherence to fatigue resistance, wear performance, and dimensional stability under load-bearing and cyclical stress conditions.

In-House Thermal Processing Capabilities

Our facility is equipped with an array of batch and continuous heat treat systems configured for high-throughput, high-repeatability operations. All processes are engineered to conform to industry standards including AMS 2750 and CQI-9.

Core processes include:

Quench & Temper (Q&T): Controlled hardening and tempering cycles to achieve targeted strength, toughness, and ductility
Normalization: Grain refinement and stress relief to improve machinability and structural integrity
Annealing: Tailored softening processes to enhance formability or prepare for further processing
Stress Relieving: Post-machining or welding treatments to reduce residual stresses and distortion
Isothermal Heat Treatment: Applied where dimensional stability and microstructure uniformity are critical

Available quench media:

Water
Oil
Polymer (aqueous solutions for controlled cooling rates)
Salt (available for select legacy processes)

Equipment Infrastructure

Sypris operates a range of programmable, computer-controlled furnaces equipped with data logging and real-time process monitoring. Our systems ensure uniform temperature distribution, rapid heat-up rates, and precise soak time management.

Furnace types include:

Sealed batch furnaces with integral quench tanks
Continuous belt furnaces for high-volume components
Vacuum furnaces for clean, oxidation-free hardening (available via strategic partners)
Salt bath systems for specialized thermal cycles
Controlled atmosphere furnaces (endothermic and nitrogen-based) for carburizing or oxidation control

All equipment is regularly calibrated and certified to meet pyrometry requirements per AMS 2750 standards.

Process Control & Compliance

Our thermal processes are backed by rigorous quality protocols, ensuring traceability and process validation from raw material to final product.

Thermal process oversight includes:

Furnace uniformity surveys (TUS) and system accuracy tests (SAT)
Full batch traceability and data retention
Hardness testing (Rockwell, Brinell) post-treatment
Microstructure evaluation and case depth verification
Statistical Process Control (SPC) and FMEA-driven process design

Certifications:

IATF 16949:2016
ISO 9001:2015
AS9100D
CQI-9 compliant audit systems

Applications & Component Types

Our heat treating expertise supports components with high durability, impact resistance, and fatigue performance requirements, including:

Axle beams and spindles
Transmission shafts and yokes
Suspension arms and structural brackets
Industrial powertrain and mechanical linkage elements

Synergistic Advantages

Vertical Integration: Forging, machining, and heat treating under one roof for full process control
Engineering Support: Metallurgical and process engineering teams available for product development and material selection
Process Optimization: Real-time data monitoring, lean methodologies, and continuous improvement initiatives to drive consistency and cost-effectiveness