This A36 steel weldment was stress relieved for a customer in the nuclear industry. The weldment is a crane trolley frame which is used on an overhead bridge and is an example of our ability to treat large fabrications. It measures 40' in length, 12' in width, 10' in height, and weighs 20 tons. Welding and other fabrication processes can cause high internal stresses within the finished structure. By heating the structure, those stresses are released without modifying any of the desired material properties.
This weldment was heated to 1150 ºF and temperatures were maintained to within ±15 ºF during the heating period. This project was turned around in one day after arrival at our facility. As a third generation heat treating company, ...
This project completed by our team at Complete Heat Treating consisted of rapid cooling of long, centrifugally cast tubes for the oil and gas industry. The 20' long tubes are 14" in diameter and weigh 5,500 lbs. each. They are cast from CA6NM steel which is a corrosion resistance iron-chromium-nickel-molybdenum alloy. After heating the tubes to a temperature of 1850 ºF with a tolerance of ±15 ºF, the castings were rapidly cooled via a forced air quench and then tempered. Forced air quench is an excellent method for preserving the desirable mechanical properties developed during heat treat while releasing many of the residual stresses than can lead to brittleness.
Our ability to handle and uniformly treat very large objects is unique ...
As a large capacity, comprehensive heat treating service provider, at Complete Heat Treating, we serve customers nationwide. This large cast alloy plate was heat treated for an aerospace customer located in the Northeast. The plate is 34' long, 5' wide, and 1.5" thick with a total weight of 8,000 lbs. The plate was solution annealed at a temperature of 2025 ºF. The ability to maintain this temperature to within ±25 ºF with such a large capacity is very unique. Our variety of equipment combined with proprietary software allows us to tightly control heating and cooling cycles. Three generations and over 70 years of experience allow us to solve a variety of heat treating challenges.
This centrifugally cast stainless steel ring was heat treated for a customer in the medical industry using a proprietary quenching apparatus that was developed here at Complete Heat Treating. The 1,400 lbs. CA-15 stainless steel ring has an outer diameter of 5' and is 6" thick. The ring was heated to a temperature of 1900 ºF and rapidly quenched using forced air. Forced air quenching is a versatile process, and when performed correctly it retains the desired mechanical properties while relieving residual stresses than can cause brittleness.
The ring was then tempered in a range from 600 ºF to 1115 ºF to a Brinell hardness of 271 to 301 which equates to a hardness of 28 to 32 on the Rockwell C scale. The tempering process was tightly ...
