PWHT - POST WELD HEAT TREATMENT

On site pre-heating hydrogen de-gastification and post weld heat treatment of pipe work, welded fabrication, and pressure vessel. Flexible electrical resistance heating elements are manufactured in a rangeof sizes to suit a wide range of application and are connected to either low Voltage (65 Volt) or hight Voltage (240 Volts) Power Sources.
Temperature Control is via pre-programmable microprocessor based modules and temperature recorders. All temperature measuring equipment is callibrated in accordance with national standards.

SOLUTION HEAT TREATMENT

Is performed on certain types of austenitic stainless steel to prevent decay in welded metal. This is done at a very high temperature (e.g) 1200° C , and the cooling is very rapid.