POST WELD HEAT TREATMENT (PWHT)
An industrial process used to alter the physical, and sometimes chemical, properties of a material. Heat treatment involves the use of heating, normally to extreme temperatures, to achieve a desired result such as hardening or softening of a material. Heat treatment techniques include annealing, case hardening, precipitation strengthening, tempering, normalizing and quenching.
POSITIVE MATERIAL IDENTIFICATION (PMI)
The analysis of a metallic alloy to establish composition by reading the quantities by percentage of its constituent elements. IIAFS has implemented x-ray fluorescence (XRF) which is a typical method for PMI.
HARDNESS TESTING (BHN)
Brinell hardness test is a quality testing method used to measure the hardness of cast metals.
Ferrite testing determines the ferrite content in material. If the ferrite content is too low, you could run the risk of hot cracking. If the ferrite content is too high, you could decrease the ductility of the weld.
WELD PROCEDURE AND QUALIFICATION (CWI)
Qualification to either American Welding Society (AWS) or American Society of Mechanical Engineers (ASME) standards through Certified Welding Inspectors (CWI) with mobile capabilities for your convenience.
ASNT LEVEL III
Field Services can offer a certified ASNT Level III to oversee non destructive testing operations and ensure work quality. Instructor certifications include ASNT Level III in RT, UT, LT, ML, MT, PT, ET, and VT.
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