Range qualified ASME

By FBTS-IS.13287 Date 07-07-2018 17:13 Edited 07-07-2018 17:17

Dear friends!!
I have doubts in the qualified range in this WPS, where it limits 24mm. Would not it be 2T ?? That is, 36mm ?? Or if there is a limitation on which QW of ASME IX or Paragrafo of ASME B31.3 lists this information.

WPS with PWHT and Impact Testing

I ask the help of the most experienced friends.

thank you

By 803056

Date 07-08-2018 14:02

One would have review the PQR to determine the range based on the thickness of the test coupon.

Al

By Shane Feder (****)

Date 08-30-2018 06:01

You have noted B31.3 and impact tested so the range of ASME IX (2 x T) is not applicable.
B31.3 lists range as 1/2 T to T + 6mm so an 18 mm PQR would give you a qualification range of 9 mm to 24 mm.

I would not accept this WPS based on deposited weld metal noted.
GTAW = 5 mm max and SMAW = 13 mm max which gives a total of 18 mm max but WPS is supposedly qualified to 24 mm thickness ??
Cheers,
Shane