Built for Strength.
Engineered for Performance.
At ThoraSteel, we’re revolutionizing ultra-high-strength steel tubing with our patented heat treatment process—delivering exceptional durability, weldability, and lightweight performance without compromising strength.
Who We Are
ThoraSteel LLC is a Service-Disabled, Veteran-Owned Small Business focused on the manufacture and sale of ultra-high strength steel tubing. We are located in Michigan, NE of Detroit, in a modern 72,000 square foot manufacturing facility. Our initial production capability was activated in 2024. With that accomplishment, we had our first commercially viable product.
A purpose-built, high-capacity production line is scheduled for delivery in early 2025 and, once commissioned, we will gain sufficient capacity to accept and deliver against large volume orders. We proudly support a variety of veteran organizations and causes.
Our Technology
The metallurgical microstructure that forms “Maximum Strength Steel” with good ductility – predominately martensite interlaced with 15-20% of bainite – has been known for several decades; however, producing it in commercially viable quantities was prohibitively expensive and time consuming. Today, major steel producers worldwide are investing in the development of enhanced bainitic microstructures for increased strength and ductility, but commercial availability still remains part of a hopeful future.
ThoraSteel is possible because we apply a recently discovered, inexpensive and highly engineered heat treatment process to produce this “Maximum Strength Steel”. This tightly controlled process works on several common grades of steel and features extremely rapid heating, a slight hold at peak temperature, followed by rapid quenching to drop the tube to ambient temperatures. This is a highly engineered process that is tightly and precisely controlled, and yields maximum strength yet ductile steel.
The process is patented and, while it does not work on all steels, it works well on AISI Grades 1020 and 4130. These grades of steel are readily available in tubular form of varied dimensions and thicknesses as:
- ASTM A513-5, (1020) Drawn Over Mandrel (aka “DoM”)
- AMS 6736 (4130) Condition N (aka “ChroMoly”)