---
title: Heat Treatment & Thermal Processing | Knowledge Hub
description: Procedures for stress relieving, grade conversion, and heat treatment of AMPCO® and AMPCOLOY® alloys, including temperatures, holding times, and cooling methods.
---

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1. [Knowledge Hub](https://academy.ampcometal.com/migration/en/knowledge)
2. [Heat Treatment & Thermal Processing](https://academy.ampcometal.com/migration/en/knowledge/heat-treatment-thermal-processing)

# Heat Treatment & Thermal Processing

 Procedures for stress relieving, grade conversion, and heat treatment of AMPCO® and AMPCOLOY® alloys, including temperatures, holding times, and cooling methods.

## Stress Relieving

- [Stress Relieving AMPCOLOY® 89](https://academy.ampcometal.com/migration/en/knowledge/stress-relieving-ampcoloy-89)
- [Stress Relief Heat Treatment for AMPCO® 45](https://academy.ampcometal.com/migration/en/knowledge/stress-relief-heat-treatment-ampco-45)
- [Stress Relieving AMPCO® 25](https://academy.ampcometal.com/migration/en/knowledge/stress-relieving-ampco-25)

## Grade Conversion & Heat Treatment Upgrades

- [Heat Treating AMPCO® 18 to Achieve AMPCO® 18.23 Properties](https://academy.ampcometal.com/migration/en/knowledge/heat-treating-ampco-18-to-ampco-18-23)

## Supply Condition & Post-Delivery Processing

- [Do AMPCO® Products Require Heat Treatment After Delivery?](https://academy.ampcometal.com/migration/en/knowledge/ampco-products-heat-treatment-after-delivery)

- [Fabrication & Processing](https://academy.ampcometal.com/migration/en/knowledge/fabrication-processing#main-content)

    - [Forming & Bending](https://academy.ampcometal.com/migration/en/knowledge/fabrication-processing#forming-bending)
    - [Welding & Joining](https://academy.ampcometal.com/migration/en/knowledge/fabrication-processing#welding-joining)
    - [Cutting & Shearing](https://academy.ampcometal.com/migration/en/knowledge/fabrication-processing#cutting-shearing)
- [Application & Process Guidance](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#main-content)

    - [Lubrication & Surface Treatment](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#lubrication-surface-treatment)
    - [Thermoforming & Plastic Processing](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#thermoforming-plastic-processing)
    - [Oil, Gas & Chemical](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#oil-gas-chemical)
    - [Temperature & Thermal Limits](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#temperature-thermal-limits)
    - [Bearings & Wear Components](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#bearings-wear-components)
    - [Specialty & High-Demand Environments](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#specialty-high-demand-environments)
    - [Plastic Injection Molding](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#plastic-injection-molding)
    - [Metal Forming & Deep Drawing](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#metal-forming-deep-drawing)
    - [Tube Bending & Forming](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#tube-bending-forming)
    - [Resistance Welding](https://academy.ampcometal.com/migration/en/knowledge/application-process-guidance#resistance-welding)
- [Machining & Tooling](https://academy.ampcometal.com/migration/en/knowledge/machining-tooling#main-content)

    - [Cutting Tool Selection](https://academy.ampcometal.com/migration/en/knowledge/machining-tooling#cutting-tool-selection)
    - [Grinding & Surface Finishing](https://academy.ampcometal.com/migration/en/knowledge/machining-tooling#grinding-surface-finishing)
- [Materials & Coatings](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#main-content)

    - [Coating Properties & Selection](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#coating-properties-selection)
    - [Tribological Properties](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#tribological-properties)
    - [Thermal Properties](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#thermal-properties)
    - [Standards & Designations](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#standards-designations)
    - [Alloy Selection & Comparison](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#alloy-selection-comparison)
    - [Mechanical Properties](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#mechanical-properties)
    - [Physical & Electrical Properties](https://academy.ampcometal.com/migration/en/knowledge/materials-coatings#physical-electrical-properties)
- [Heat Treatment & Thermal Processing](https://academy.ampcometal.com/migration/en/knowledge/heat-treatment-thermal-processing#main-content)

    - [Stress Relieving](https://academy.ampcometal.com/migration/en/knowledge/heat-treatment-thermal-processing#stress-relieving)
    - [Grade Conversion & Heat Treatment Upgrades](https://academy.ampcometal.com/migration/en/knowledge/heat-treatment-thermal-processing#grade-conversion-heat-treatment-upgrades)
    - [Supply Condition & Post-Delivery Processing](https://academy.ampcometal.com/migration/en/knowledge/heat-treatment-thermal-processing#supply-condition-post-delivery-processing)

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