Expansion Bellow Forming

• MOC : SA516 GR70
• Equipment Name : Expansion Bellow Forming
• Size : Major ID_2828mm, Minor ID_ 2190 Thickness_ 36 thk, Height_260mm
• End User : Godrej & Boyce Mfg. Co. Ltd. Mumbai

Local heat treatment

Local heat treatment is an essential process in modern welding and fabrication, ensuring that welded joints achieve the required strength, integrity, and long-term reliability while complying with industry standards such as the ASME Boiler and Pressure Vessel Code and project-specific welding procedures.

Local Heat Treatment (LHT) is a controlled heating process in which only a specific area of a metal component—typically around a weld or heat-affected zone (HAZ)—is heated to a predetermined temperature and then cooled at a controlled rate & Varies from Metal To Metal. Primary objective is to achieve the below requirement:

• Relieve residual stresses generated during welding.
• Reduce susceptibility to hydrogen-induced and stress-corrosion cracking.
• Improve toughness, ductility, and dimensional stability.
• Restore required mechanical properties in the weld and heat-affected zone.
• Meet the requirements of applicable construction codes and project specifications