Stress Relieving


To relieve stresses that remain locked in a structure as a consequence of Post Welding . Postweld heat treating is to provide, in addition to the relief of residual stresses. For example, most ferritic weldments are given postweld heat treatment to improve the fracture toughness of the heat-affected zones (HAZ). Moreover, austenitic and nonferrous alloys are frequently postweld heat treated to improve resistance to environmental damage. Stress-relief heat treating is the uniform heating of a structure, or portion thereof, to a suitable temperature below the transformation range (Ac1 for ferritic steels), holding at this temperature for a predetermined period of time, followed by uniform cooling. Care must be taken to ensure uniform cooling, particularly when a component is composed of variable section sizes.

Different Furnace Capacity
Size: 1500 mm Dia x 310 mm Height
Size: 1000 mm Dia x 1600 mm Height
Size: 750 mm Dia x 2000 mm Height


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