All Categories on Donovan Heat Treating Co., Inc.

Heat Treating
Services Normalize & Normalize
Temper Quench & Tempering Homogenizing Treatment Annealing & Solution
Annealing Hardening & Stress
Relieving & Stress
Annealing Precipitation Age
Hardening Sand Blasting
Services Brush Off SP-7 Commercial Blasting
SP-6 Near White & White Blast SP-10 & White Blast SP-5

Member of the
Metal Treating Institute


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		Normalize & Normalize Temper Operating one of the largest capacities on the eastern seaboard for heat treatment, we provide normalizing and tempering services for a number of industries, including hydropower as well as cement. Equipped with a Class 2, 40‘ Reading furnace and a 20-ton overhead crane, our specialization lies in the heat treatment of ‘extra large’ and ‘extra heavy’ parts. In addition we also have an 18’ Johnson Car Bottom Class-2 furnace with working temperatures between 1000°F and 2300°F, and an 18’ Chesmont Class-1 furnace, whose working temperature ranges from 300°F to 1400°F.




		Quench & Tempering Our specialty lies in quenching and tempering alloy bars, pipes, as well as plates made from various metals, such as carbon steel, aluminum, plus stainless steel. Oil, water, and air quenching are available for customers to choose, depending on the specific application requirements. However, our oil quenching services are restricted to parts that have been heat-treated only in our 18’ or smaller furnaces. Air and water quenching services are offered for larger parts that are heat treated in our 41’ Redding furnace. Oil quenching operations are performed using AAA100 oil for faster quenching, while our water quenching services employ plain water with no brine.




		Homogenizing Treatment Our homogenization services reduce or remove the chemical segregation in metals as well as alloys, including carbon steel and stainless steel, through heat treatment. We reduce the chemical segregation by diffusing the material with high temperature heat treatment process. Homogenizing treatment absorbs the segregation and coring found in castings plus other hot worked metals, to produce uniform structures that meet your specific requirements.




		Annealing & Solution Annealing Our heat treatment services for annealing various metals, such as steel, aluminum, and copper, improve the ductility as well as cold working properties of all types of metals. All materials that we heat treat are annealed at temperatures suitable to the specific metal or alloy, which is ensured by our furnaces that are 100% computer controlled and feature state-of-the-art instrumentation. Annealing services are offered for large loads of up to 300,000 lbs in weight, which can be handled by our 41’ Redding furnace. In addition, our ability to heat treat ‘extra large’ as well as ‘extra heavy’ loads is further enhanced by our Car Bottom outfitted furnaces plus an overhead crane that features a 20-ton lifting capacity.




		Hardening & Stress Relieving & Stress Annealing Our heat treating services harden, stress relieve, and stress anneal your materials to provide them with the desired mechanical properties required for their applications. We offer these services in our non-atmospheric furnaces for metal loads weighing up to 300,000 lbs. Materials are hardened by heating them in our furnaces to temperatures up to 2300°F and then rapidly cooling them in our quenching tanks. Air, oil, and water quenching services are offered to our customers.




		Precipitation Age Hardening Specializing in the heat treatment of ‘extra large’ and ‘extra heavy’ metal loads, we offer precipitation hardening services to inure plus increase the tensile strength of all your metals as well as alloys. These hardening services are offered for various metals, including stainless steel, beryllium copper, and aluminum, of different sizes ranging up to 40’ in length. This service is supported by our state-of-the-art equipment that includes a 41’ Reading furnace, an 18’ Johnson Car Bottom furnace, and a 20-ton overhead crane with full accessibility throughout the shop.




		Brush Off SP-7 We offer sand and grit blasting services to surface prepare your metals for compliance with various SSPC standards, including the SSPC-SP-7 brush off standard. Using our brush off blast cleaning services, metal surfaces are prepared free of any visible loose mill scale, loose rust, loose coating, dirt, and dust. Our brush off service ensures that the materials are free of contaminants prior to heat treatment. Aluminum oxide sand blasting operations are performed in-house in a sandblasting room that can accommodate parts up to 30’ long and weigh up to 40,000 lbs per piece.




		Commercial Blasting SP-6 Sand blasting services are provided to our customers for the surface preparation of metal and alloy work pieces, in compliance with SSPC standard commercial blast or SSPC-SP-6. Corrosion, dust and other imperfections are effectively removed from your metal plus alloy products, leaving their surfaces smooth as well as clean. The blasting is performed in-house in our sandblasting room using aluminum oxide as the abrasive media.




		Near White SP-10 & White Blast SP-5 Capitalizing on our sand blasting capabilities, we can achieve near-white and white blast for surface preparation that complies with SSPC standards. Using aluminum oxide as the abrasive media, we perform blasting services in our in-house sandblasting facility, which can accommodate work pieces that are 11.5' wide, 10' high, 30' long and weigh up to 40,000 lbs per piece.