Test Coupon

akim · **Joined:** Fri Dec 19, 2008 3:21 am **Posts:** 9

I used material SA516 GR.70 purpose for test coupon, thickness 12.7mm. Mill Cert. was stated 12.7mm but not in inches 1/2". For information, weld process is FCAW, short-circuit transfer mode.

As per QW- 403.10

Code:

For the shot-circuiting transfer mode of the gas metal arc-process, when the qualification test coupon thickness is less than 1/2 in. (13mm), an increase beyond 1.1 times that of the qualification test coupon. For thickness of 1/2 in. (13mm) and greather, use table QW-451.1.. 

Accordance the Code below,It's qualified for 2T or 1.1T.?
Any opinion?
Thanks.

jon20013 · **Posted:** Mon Mar 02, 2009 5:22 am

Short circuiting transfer mode is not usually associated with the FCAW process. FCAW is normally considered globular or spray transfer. What makes you think it is short circuiting process?

I would say your WPS would be qualified for 2T.

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