Heat Treatment for Metal

A STEEL is usually defined as an alloy of iron and carbon with the carbon content between a few hundreds of a percent up to about 2 wt%. Other alloying elements can amount in total to about 5 wt% in low-alloy steels and higher in more highly alloyed steels such as tool steels and stainless steels. Steels can exhibit a wide variety of properties depending on composition as well as the phases and microconstituents present, which in turn depend on the heat treatment.
STRESS-RELIEF HEAT TREATING is used to relieve stresses that remain locked in a structure as a consequence of a manufacturing sequence. This definition separates stress-relief heat treating from postweld heat treating in that the goal of postweld heat treating is to provide, in addition to the relief of residual stresses, some preferred metallurgical structure or properties. For example, most ferritic weldments are given postweld heat treatment to improve the fracture toughness of the heat-affected zones (HAZ).
NORMALIZING OF STEEL is a heat-treating process that is often considered from both thermal and microstructural standpoints. In the thermal sense, normalizing is an austenitizing heating cycle followed by cooling in still or slightly agitated air. Typically, the work is heated to a temperature about 55 °C (100 °F) above the upper critical line of the ironiron carbide phase diagram. Tobe properly classed as a normalizing treatment, the heating portion of the process must produce a homogeneous austenitic phase (face-centered cubic, or fcc, crystal structure) prior to cooling.
ANNEALING is a generic term denoting a treatment that consists of heating to and holding at a suitable temperature followed by cooling at an appropriate rate, primarily for the softening of metallic materials

Stress Relieving Heat Treatment

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Service Details:

Service Location	All over India
Techniques of Heat Treating	Selective Heat Treating
Mode	Offline
Services Include	Solution Annealing
Equipement	Automatic
Frequency	One Time

Stress Relieving Heat Treatment of metal parts / components to avoid failure during service. These machining induces stress in parts. The bigger and more complex the part, the more the stresses we get. These stresses can cause distortions in the part long term. If the parts are clamped in service, then cracking could occur. Also hole locations can change causing them to go out of tolerance. For these reasons, stress relieving is often necessary.

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Post Weld Heat Treatment (PWHT)

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Service Details:

Current	5A
Mode	Offline
Phase	3 Phase
Types of Potential Treatment	Stress Relieving
Voltage	230 V
Automation Grade	Automation

Post Weld Heat Treatment (PWHT) is carried out to remove stress developed after welding.

Our Heat Treatment Services include:

Pre Heating
Post Weld Heat Treatment (PWHT)
Stress Relieving (SR)

Additional Information:

Item Code: PWHT

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Heat Treatment

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Service Details:

Service Location	India
Service Type	Heat Treatment
Number of Pieces	Greater than 10 Pieces
Finished Product Delivery Type	Self Pick Up
Requirement Frequency	Monthly
Frequency	50 Hz

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