The Nation’s Heat-Treating Specialists.
HTI has austempered high-carbon and alloy steel components for automotive, industrial, and specialty manufacturers since 1976 — with four continuous belt furnaces with 24/7 capability to meet your just-in-time demand.
See the Process.
A look inside the plant — the furnaces, the loading, and the discipline behind every lot.
Specialized Processes. Exceptional Results.
From hardening high-carbon steel to beryllium copper age hardening, HTI handles the applications other heat treaters turn away.
Austempering
The process HTI was built on. An isothermal transformation to bainite for greater toughness and ductility at a given hardness — with far less distortion than conventional quench and temper.
Stress Relieving
Reduces the internal stresses introduced during fabrication and forming, without compromising the integrity of the finished part.
Age Hardening — Beryllium Copper
Precipitation hardening of beryllium copper: Alloy 25 (C172) and Alloy 165 (C170), taken from H temper to HT temper.
Rust Prevention
Post-treatment oil dip and spin for clean, corrosion-protected parts ready for the next operation.
Tumbling & Deburring
Horizontal barrel and vibratory bowl finishing to remove burrs and improve surface quality — in-house and under the same quality system.
Material Range
Carbon and alloy steels from AISI 1045 through 1095, plus 4130, 4140, 5160, E52100 and more — parts from 0.005″ to 0.150″ thick.
Flexible Loading
Hand-placed, hand-sprinkled, bulk-loaded with computerized autoloaders, or sample-bagged for prototypes — from first article to millions of parts.
Trusted Where Parts Can’t Fail.
HTI components end up in products where hardness, toughness, and dimensional precision are non-negotiable.
Austempering Vs. Conventional Heat Treating.
Not every heat treater can austemper well. HTI has built an entire company around mastering the one process — backed by on-site technical staff who help solve difficult, high-precision applications.
“Having worked closely with HTI for over a decade now, I can attest to their professionalism, knowledge and integrity in all they do. HTI is a customer-focused organization offering both technical expertise in heat treatment and an unmatched attention to detail. They have an unwavering commitment to quality, service and support their customers, large and small. They are truly one of the best heat treaters I know in the industry.”— Daniel Herring “The Heat Treat Doctor”
Built for Scale. Built for Consistency.
- 4 continuous wire-mesh belt furnacesHigh-volume austempering with computerized autoloaders for uniform, repeatable loading.
- 24/7 capabilityAround-the-clock operation built for just-in-time delivery.
- Next-gen furnace automationOur flagship belt furnace runs on intelligent process control — redundant atmosphere systems, re-fire safety, and barcoded recipe automation for qualified programs.
- On-site technical staffProcess guidance and problem-solving for demanding applications.
- Post-treatment rust preventionOil dip and spin for clean, corrosion-protected parts.
- Logansport, IndianaCentrally located for cost-effective Midwest and national shipping.
When Failure Is Not an Option.
Automotive-grade quality systems, proven lot after lot.
Industry Memberships
Company Documents.
Download our key reference documents for a quick overview of HTI’s capabilities, specifications, and business policies.
Ready to Solve Your Toughest Heat-Treat Challenge?
Send us your part and specifications — our technical team will tell you how austempering performs for your application.