WIS - Base Metals
- Tiradej Bunyarattaphantu
Base Material Information
PreHeat Min: The minimum temperature in the weld joint preparation immediately prior to the welding; in the case of multiple pass welds, this refers to the minimum temperature in the section of the previously deposited weld metal immediately prior to welding.
MAX Interpass: The highest temperature in the weld joint immediately prior to welding; in the case of multiple pass welds, this refers to the highest temperature in the section of the previously deposited weld metal immediately before the next pass is started.
Holding time: Enter the actual post weld heat treatment time. This should be expressed in hours and decimals; for example, record a PWHT time of 4 hours and 15 minutes as 4.25.
PWHT Type: Select the heat treatment that was performed subsequent to welding. UTT refers to Upper Transformation Temperature; LTT is Lower Transformation Temperature.
PWHT Temp: Enter the temperature of the post weld heat treatment.
PreHeat Notes: Enter any notes about the preheat process.
PWHT Notes: Enter any notes about the post weld heat treatment.