During production welding, heat treatment may be required to relief stress with the overall aim of removing residual stresses that may have been generated during welding. Stress relieving generally aids in the removal of or reduction of the risk of brittle fracture after welding as well as stress corrosion, among other metallurgical problems associated with welding. These thermal treatments therefore assist in assuring weld quality, performance and integrity. CIS has experience personnel and Heat Treatment Machines to serve this purpose.