Good Engineering Practice is to be followed eventhough Code allows because metal flow is very important. Mock up test is to be done before engaging in the work.
THANKS & BEST REGARDS,
KG.PANDITHAN, BE, IWE, CSWIP 3.1,
ISO 9712 Level 2 in VT,
ASNT-Level II in PT,MT,RT & UT,
LA ISO 9001-2015, ISO 3834, EN 15085,
International Welding Engineer.
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349
On Tue, Feb 3, 2026 at 7:22 PM Anandhapadmanabha pillaim <anandhapadmanabhapillaim1997@gmail.com> wrote:
Qw-423 Allows alternative material for WQT.You can alter the base material mentioned in the WPS , alternative base material shall be chosen as per the table mentioned in QW-423.--On Tue, 3 Feb 2026, 4:15 pm Aslam Khan, <akchillu@gmail.com> wrote:What about qw-423, it mention we can use alternative material for wqt,pls clear the doubtThanks®ards
Aslam khan
Mob:+965 66744128--On Tue, 3 Feb 2026 at 2:46 PM sridhar cn <sridharcn305@gmail.com> wrote:As per ASME Section IX, welder qualification for a dissimilar weld (P5A → P8) performed using F-No. 43 filler cannot be done on
P5A → P5A materials alone. The test coupon must include at least one P8 base metal to represent the metallurgical condition of
the production weld. Therefore WQT must be performed on a CS + SS test coupon. CS + CS coupon with F43 is not acceptable under
ASME IX.
Sridhar.
On Tue, 3 Feb 2026 at 13:20, Aslam Khan <akchillu@gmail.com> wrote:I have scenario in site, we have to qualify welders for cs to ss,but we dont have ss material available ,can we do with cs alone using f43 filler wire. wps- p5a to p8- f.no-43Wqt - p5a to p5a- f.no-43Thanks®ards
Aslam----
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