WPS Range

(i don't understand a hit of tis - sorry - but the bing does)

Bing :: [ weld metal thickness range for WPS qw 451. ]

http://www.eng-tips.com/viewthread.cfm?qid=119151

Thanks for the reply. Ok, No problem, I will explain.The thread which you shown in your reply is also an ASME (American Society of Mechanical Engineers) Section IX code discussion.But,the fellow asked a question based on QW 403.6 clause in ASME Sec IX to understand the range of thickness when charpy impacts are mandatory. "QW 100.1 In addition when other sections of the code require notch toughness qualification of the WPS ,the applicable supplementary essential variables must be addressed in the WPS"Whenever charpy impact are required, other code section to be reffered.ie, ASME Sec IX has no set of rules to find the charpy impacts.In this case,One has to refer construction codes such as ASME Sec I,III,VIII,ASME B31.1,ASME B31.3 or any other construction code as per client requirement.So,your link has nothing to do with my query as my case is exempted from charpy impact.

Hope this helps,

San

Hi San!

As per QW-451.1-

For- WPS-1:

Metal thickness range will be from 5 to 72 mm.

For weld: GTAW from 1.5 to 12.00 mm.,SMAW from 5 to 60 mm.

For -WPS-2

Metal thickness range is 5 to 200 mm.

For weld: GTAW from 1.5 to 12.00 mm,SMAW from 5 to 200 mm.

I assume that there is no PWHT.Also base metal details are not available.

Regards

Dhananjay

Hi Dhananjay!

Thanks for the reply.But your answers are little bit confusing.First of all, there is no minimum thickness for weld metal in ASME Sec IX QW 451.1. Minimum and Maximum thickness range is applicable for base metal and ONLY Maximum thickness applicable to Weld Metal. If ASME Sec IX has such a restriction on weld metal,then you cannot tack weld. PWHT is generally not required for Austenitic stainless steels.The correct answers are as follows.

WPS-1

Base Metal Range = 5mm to 72mm

GTAW Range = 12mm

SMAW Range = 72mm (because the deposited weld metal is more than 19 mm thick so the qualified range would be 2T.ie, 2X36 = 72mm)

WPS-2

Base Metal Range = 5 mm to 200 mm

GTAW Range = 12mm

SMAW Range = 200mm (Because the deposited weld metal thickness is more than 19mm,so the range would be 200mm)

Thanks,

San