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Capabilities

Thermal Treatments

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An integral part of our supply chain and technical service for every order size.

Our premier thermal treatment capabilities provide a diverse range of processing options to meet demanding strength and hardness requirements – regardless of order size. Metallus has both batch and continuous heat treat assets, heating via both gas-fired furnaces and induction, and maintain strict auditing practices and calibrations in accordance with industry standards like AMS 2750. Our metallurgical experts continuously evolve these capabilities and broaden our sophistication in custom thermal treat offerings so customers can rely on innovative product designs and proven quality. 

We meet our customers’ needs through our high-quality steel bars, tubes, and billets, to which we can apply value-added services. Our approach to manufacturing integrates our melting, rolling, piercing, and finishing operations, ensuring a complete chemistry from start to finish. Our in-house lab tests samples from each batch using our own equipment to verify compliance and alignment with customer specifications.

Metallus has the capabilities to meet tough mechanical properties and achieve specific hardness or microstructure requirements for our customers’ projects. Benefits of our value-added thermal treatment capabilities include:

  • Precisely controlled hardness and strength properties
  • Improved ductility and toughness
  • Anneal for subsequent forging or machining operations
  • Relieved stresses caused by cold straightening
  • Development of low-alloy customized grades for unique applications

Why Metallus?

Read about our full thermal treatment solutions offerings here.

Thermal Treatment Capabilities

This image shows a collection of long, cylindrical metal rods arranged in a radial pattern on a blue rack, with their threaded ends capped in brass.

Quench-and-temper

The quench-and-temper processes heats steel uniformly to a temperature above a critical range and cools it rapidly in a liquid medium. This treatment helps achieve specific levels of strength and toughness to meet the customer requirements.

The image shows an industrial setting with multiple large aluminum billets lined up on a conveyor system ready for processing or transport.

Stress Relieve and Temper 

Stress relieve helps minimize distortion for machining, while tempering relieves stresses and softens the product prior to cold working.

The image shows an industrial interior with heavy machinery, metallic structures, dirty floors, pipes, and possibly a production assembly area or factory setting.

Anneal

Anneal is heating uniformly to a temperature within or above the critical range and cooling at a controlled rate to a temperature under the critical range. We use this treatment to produce a definite microstructure, usually one designed for the best machinability and ductility. We also use anneal to remove stresses, induce softness, and alter toughness or other mechanical properties.

The image shows an industrial setting with machinery, pipes on the floor, rail tracks, and a forklift. It has a gritty, functional appearance, typical of manufacturing facilities.

Spheroidize Anneal

Spheroidize anneal uses a long heating cycle to produce carbide microstructures best for machinability and subsequent processing steps.

Four large red-tipped pipes are lying on a conveyor system inside an industrial facility. Chains hang above, suggesting a loading or manufacturing process.

Normalize 

In the normalizing process, we heat steel uniformly to a temperature at least 99° F (37° C) above the critical range and cool in air to room temperature. This treatment produces a recrystallization and refinement of the grain structure, giving the product uniformity in hardness and structure.

Case Study

  • The image shows a high-angle view of turbulent blue ocean waters next to the red steel structure of a ship or oil platform, with pipes and railings.

    Lower-cost, corrosion-resistance solution for offshore wells: 4130ModSS

    In partnership with a large oil and gas distributor, we developed a lower-cost alloy that would meet corrosion-resistance standards for offshore wells in sour service environments. We tested the grades in a lab environment to very specific customer requirements in accordance to NACE MR0175 standards, and partnered with a distributor to provide this comprehensive solution for applications in wells off the coast of Louisiana. As a result of this collaboration, we developed – and currently offer as part of our portfolio – steel grade 4130ModSS.

Contact Us

For more details about our thermal treat offerings, call 330-471-8888.

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