[MW:13243] IMPACT TEST -SUB SIZE

Hi,

 

Now we are qualifying two new PQR for new project for less base metal

thick. (9mm). Code AWS D1.1

 

ROOT / HOT Pass              -GTAW (deposited 4mm)

Fill/Cap                                - SMAW (deposited 5mm)

 

We need to perform the impact test as per Client Welding spec for each process.

In this case, we have to go for Sub size with temperature reduction.

 

Client Welding spec requirement is minimum - 29 °C. 

 

If I go with 10x5mm sub size, I need to reduce 11.1 °C  and test to be

done at -40.1°C. (  -29 -11.1) 

Then Joule value will considered as per ASTM 370,16 J from the below

second table.

 

Is it correct ?

 

With Kind Regards,

 

S.Elumalai.

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