For virtually any annealing operation, Covai Air Products has an atmosphere that’s ready to perform. Whether you are annealing ferrous or nonferrous metals, our wide range of atmosphere solutions can ensure that your special atmosphere requirements can be fully satisfied.
Since many of our atmospheres contain none of the unreacted hydrocarbons that are typically found with traditional exothermically-generated atmospheres, the improvement in surface quality often allows for a significant reduction in post-heat treatment cleaning or pickling costs, sometimes by as much as 80%. We also have a cooling application for temper rolling.
Heating Treating Solutions
Covai Air Products offers a wide range of technologies, gases, equipment, and cutting-edge solutions for the heat treating industry.
Annealing Expertise and Solutions
Surface Quality and Reduction
No unreacted hydrocarbons yields surface quality improvements and often allows a cleaning or pickling cost reduction
Consistent Atmosphere Nonferrous Annealing
Consistent atmosphere systems maintain oxide-free surfaces and the desired metallurgical properties for nonferrous materials
Improved Quality of Annealed Components
Air Products offers a complete range of atmosphere systems that excel in a wide variety of annealing applications
Superior quality and control
Our nitrogen-based atmospheres protect ferrous parts; and 4–10% hydrogen prevents oxidation and decarburization
Reduced cycle time
The use of 100% hydrogen can reduce cycle time by ~50% when annealing sheet or coil products in high convection bell furnaces
Improved Stainless Steel Annealing
Our nitrogen/hydrogen and pure hydrogen atmospheres provide the highest atmosphere quality for stainless steel strip, wire and tube products
- Global leading manufacturer of nitrogen, oxygen, and argon
- World-leading producer and supplier of hydrogen and helium
- Reliable supply of industrial gases
- Excellent record of meeting on-time needs
- The industry leader in safety
- Technical support when you need it
- World-class customer service
We can help you choose the right atmosphere composition.
- Select and provide blending and flow control equipment
- Perform on-site atmosphere analyses for consistent dimensional control, carbon control, and physical and metallurgical properties
- Optimize your furnace process to lower operating costs
- Perform state-of-the-art metallographic and chemical analyses (SEM, ESCA, SAM, ISS, SIMS)
- Provide safety training
- Test atmospheres using your parts in our lab furnaces
- Demonstrate our system at your facility
Industrial Gas Audits and Leak Detection Services
Cap Provides Audits and leak detection services can be comprehensive assessments of the entire gas supply system, or specific to gas or process equipment that uses the gas.
Compressed argon gas and liquid argon in a variety of purities and in various modes of supply around the world thanks to our network of storage and transfill facilities.
An inert gas for cryogenic, heat transfer, shielding, leak detection, analytical and lifting applications
Valued for its reactive and protective properties, and used by many industries such as electronics, foods, glass, chemicals, refining and more can benefit from its unique properties to improve quality, optimize performance and reduce costs.
Useful as a gas, for its inert properties, and as a liquid for cooling and freezing. Virtually any industry can benefit from its unique properties to improve yields, optimize performance and make operations safer.
Get in touch with our technical experts.
Let us help you determine how to maximize the benefits of the annealing process.