Carburizing Heat Treatment for Machined Gears, Parts & Stampings

Welcome to our detailed exploration of the carburizing heat treatment process for machined gears, machined parts, and stampings. This transformative method offers technical benefits, especially for steel components, ensuring they’re primed for high-performance applications.

Technical Benefits of Carburizing:

  • Enhanced Surface Hardness: By introducing more carbon into the surface layer of the heat-treated components, the carbon-rich surface transforms into hard martensite. This offers a robust and wear-resistant exterior.
  • Tough Core Properties: While the surface is hardened, the core remains relatively ductile, balancing wear resistance and impact absorption.
  • Improved Wear & Fatigue Resistance: Carburizing leads to a reduction in wear rates and an enhanced fatigue limit, especially crucial for components like gears under repeated loads.
  • Versatility in Component Geometry: It’s adaptable for complex-shaped components, fitting the needs of intricate parts across various industries.
  • Reduced Distortion: Ensures components retain desired dimensions post-treatment.
  • Selective Carburizing: The use of carb stop-off paints makes selective carburizing case hardening possible, with carburize-only processes also on offer, in addition to blasting and straightening.

Capabilities & Features:

  • Steel Types for Carburizing:
  • Carburizing 8620 Steel
  • Carburizing 4320 Steel
  • Carburizing 9310 Steel
  • Carburizing 5120 Steel
  • Carburizing 4715 Steel
  • Carburizing 3310 Steel
  • Furnace Specifications: We utilize numerous batch-type furnaces allowing optimal process and lot control.
  • Largest working dimensions: 54” W or 56” Vertical or 72” horizontal.
  • Weight capacity: up to 10,000 lbs.
  • Furnaces meet temperature accuracy and uniformity requirements of AMS 2750.
  • Case Depth:
  • Regular 0.030” case depth load run nightly at 9 pm.
  • Capable of carburizing to case depths exceeding 0.100” upon request.

Why ThermTech?

ThermTech, a leading commercial heat-treating company, stands out in providing carburizing heat treatment, especially for the Oil & Gas industry. We handle metal that demands mechanical and Charpy impact properties. With our unmatched quench and process controls, the parts we heat treat consistently surpass the stringent property requirements of contemporary manufacturing.

Expert Recommendations:

  • Case Harden Machined Components: Carburizing heat treatment is often recommended for machined components with wear surfaces.
  • Addressing Retained Austenite Post-Quench: For alloyed steels, like the 9310, we might suggest a cryo-treatment post-carburizing to reduce retained austenite levels.

In Conclusion:

Carburizing is an intricate process with significant benefits for machined gears, parts, and stampings. Entrusting such critical components to experts ensures durability, precision, and quality in every application.

ThermTech—Experts in Austempering Stampings, Machined Parts, and Investment Castings

ThermTech, Inc. offers both small and large batch capabilities for austempering steel and iron investment castings. Between our neutral salt bath furnaces and our larger austempering furnaces, we have the capabilities to austemper a wide variety of stamping, machined components, and investment castings. We have run austempering on alloys from 1060 through 4340 to ductile iron machined parts.

Our dedicated team works with you to ensure we meet your specifications. Count on our decades of experience with hardening, tempering, surface heat treatments, vacuum treatments, and annealing. To learn more about our services, please contact us today.

Learn more about austempering and how ThermTech can serve you by watching these videos.

Request a free quote online or call us at 800-752-6917. You can also contact us online for all your austempering and heat treating needs.

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ThermTech’s quality policy is ZERO DEFECTS for all customer products and in all quality management system activities. Through our efforts to continually improve the quality of the work we offer, we’ve been recognized as being able to meet the rigorous quality standards required by several of our major customers. ThermTech is certified for ISO 9001 and AS9100 in both Metal Heat Treat and Metal Finishing.