Polar Cryogenics


High Performance Cryogenic Services, Boulder CO


720-580-2021 | Sales@PolarCryogenics.com |Facebook | Instagram




What Is Cryogenic Processing?

Cryogenic processing (or cryogenic treatment) was originally developed by NASA and has evolved into a very precise process in which parts are cooled in a computer controlled dry chamber to -315F where they remain for 24 to 48 hours before being slowly warmed back up to room temperature. At the atomic level, this process provides two very important benefits. First, it improves hardness of metals by changing the atomic structure of metal by repositioning the carbon atoms, also known as transforming austenite to martensite. Second, the cooling and warming process causes the internal core structure of metal to break up large grain clusters creating a much finer and more consistent microstructure that improves toughness. These improvements have been proven through hundreds of well documented scientific and real world experiments, many of them available for public viewing at the Cryogenic Society of America website.

Benefits of Cryogenic Treatment:

  • 300% Improved Wear Resistance
  • Increases Hardness by Converting Austenite to Martensite
  • Significantly Improved Heat Dissipation
  • Improved Heat Distribution (Warming and Cooling)
  • Increased Resistance to Cracking or Warping
  • Keeps Sharp Edges Sharp 300-400% Longer
  • Stress Relief and Stabilization
  • Improved Corrosion Resistance
  • Improved Cycle Fatigue (Springs)
  • Improved vibration damping
  • Increased Electrical Conductivity




Cryogenic Treatment Disc Brakes
Automotive Brake Rotors

Cryogenic Treatment increases the service life of automotive disc brakes by 300% as has been proven in both racing applications as well as heavy commercial use including taxis, police departments, and fire departments.

Cryogenically Treated brake rotors also dissipate heat faster for less brake fade under aggressive braking and are less prone to warping or cracking.

A scientific study published by Vimlesh C. Ajbani, Prof. A.N. Prajapati, titled "Cryogenic Treatment of Brake Rotors to Improve Wear Resistance" proved that deep cryogenically treated disc brakes lost 1/3 of the material compared to non-treated rotors after 2,000 hard braking cycles in a controlled laboratory test.



Cryogenic Treatment Ring Pinion Gears
Automotive Ring and Pinion Gears

Cryogenic Treatment offers three major benefits to automotive ring and pinion gears. First, the surface hardness of the gear is improved as austenite is converted to martensite (Learn More: RaceGears.com) which greatly improves wear resistance and slightly reduces friction for a longer life.

Gears, shafts, and assemblies, a study by the Illinois Institute of Technology Research concluded that deep cryogenic processing (-300 Deg. F) of carburized 9310 steel increased the gear fatigue life by 100% and the ability of the gear to handle load by over 10% over the same material processed at only -120 Deg. F.

A study performed by Instrumented Factory For Precision Gears (INFAC) concluded that cryogenic treatment increased surface hardness from 55-62.4 HRC to 62.4-68 HRC which reduces wear and extends gear life. The process also reduced tensile residual stresses, thus increasing the load capacity and fatigue life of gears.



Cryogenic Treatment Engine Parts
Engine and Transmission Components

Racing teams from Formula 1 to NASCAR to NHRA Drag Racing and SCORE International Off-Road Racing have been relying on cryogenic processing to treat their engine components for decades.

Cryogenic treatment increases both the hardness and toughness of metals and tightens the crystaline microstructure while relieving stresses for significantly improved strength, wear resistance, and reduced microfractures and warping.

Excerpts from Cryogenics The Racer's Edge by Thermal Processing, Inc. - Dyer's Top Rods in Forrest, IL uses cryogenic processing to increase the fatigue life of connecting rods. Drag racers have found the cryogenically treating roller lifters can increase their usable life from 5 to 10 runs, to over 100. Winston cup teams have found that cryogenically treated connecting rods show half as much wear compared to untreated rods. Racers have also noticed a 3-5 times increase in bearing life after cryogenic processing. Pistons and piston rings have shown significant reductions in wear after cryogenic treatment and engine blocks are much less prone to warping and cracking.



Cryogenic Treatment Knives
Knives, Blades, and Cutting Instruments

When lives are on the line, hospitals and surgeons depend on cryogenically treated surgical tools to be sharper, stronger, cut cleaner, and last longer. Cryogenically treated knives, blades, and cutting instruments last 300-400% longer before needing to be sharpened.

These benefits also apply to many other industries including professional kitchens and sushi chefs, butchers, fishermen, barbers, tailors, tree trimmers, landscapers, electricians, carpenters, warehouse workers, and of course EMS, police, firemen, and military.





Cryogenic Treatment CNC End Mills
CNC End Mills and Inserts

"Cryogenically treated Al2O2 cutting tools were found to live significantly longer than conventionally cooled CBN tools during machining of hard and soft P/M parts characterized by low as well as high density. Thus, the use of cryogenic cooling in finishing P/M parts enables the industry to reduce manufacturing costs by decreasing tooling costs and/or increasing productivity." Finish-Turning of Hardened Powder-Metallurgy Steel Using Cryogenic Cooling - Zbigniew Zurecki, Ranajit Ghosh, and John H. Frey



Cryogenic Treatment Firearms
Firearm Components and Barrels

Cryogenic Treatment offers many important benefits to firearm components including increased accuracy, tighter grouping, higher velocity, reduced wear, more even heat distribution, and faster heat dissipation.

Testing and competition use has repeatedly shown that cryogenically treated barrels have resulted in 50% tighter shot grouping, 50-60 fps increased bullet velocity, and 200-300% increased component life.

Many customers have also found that cryogenically treated firearms are much easier to clean and have less buildup after use.



Other Commonly Treated Items

  • Musical Instruments and Guitar Strings
  • Tools, Drill Bits, Screw Driver Bits
  • Coil Springs and Valve Springs
  • Electronics, Speaker Wire, Batteries
  • Industrial Equipment, Dies, and Molds
  • Ball Bearings, Roller Bearings
  • Fire Sprinklers and Valves
  • Axle Shafts, Sprockets, and Chains
  • Chainsaw Chain, Saw Blades
  • Archery Arrows and Bolts


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