Search results with tag "Postweld heat"
Stainless Steel AL 17-4™ Precipitation
www.specialtysteelsupply.comPostweld heat treating is needed to produce the vari-ous precipitation hardened heat treatment properties. If matching filler material is used, properties comparable to those of the parent metal can be produced in the weld by postweld precipitation hardening heat treatment. When a number of welding passes are made, a sub-
Welding Procedure Specification (WPS) Sheet 1 of 3
www.wpsamerica.comPOSTWELD HEAT TREATMENT (QW-407) Holding Temperature Range °C (°F): 680 °C + or - 10 °C Holding Time Range: 1 hr/ in. (15 minutes Min.) Heating Rate °C/hr (°F/hr): 120 °C/hr Method: Furnace Cooling Rate °C/hr (°F/hr): 120 °C/hr Method: Open Air
PROCEDURE QUALIFICATION RECORD (PQR) Sheet 1 of 4
www.wpsamerica.comPOSTWELD HEAT TREATMENT TABLE: ASME Section VIII-Division 1: Requirements for PWHT of Table UCS-56 Min. Holding Temperature: 1,100 °F (595 °C) Min. Holding Time for Weld Thickness (Nominal): Up to 2 in. (50 mm): 1 hr/in. (2 min/mm), 15 min Min. Over 2 in. (50 mm): 2 hr plus 15 min for each additional inch over 2 in. (50 mm)