Understanding API ICP653 Reading 15-Worksheet-11a

TASK#8
Welding Data
QW-400 thru QW-450
Q1. A manufacturer is qualifying a WPS in GMAW process in short circuit arc
transfer mode. The test coupon is ½" thick the maximum thickness qualified
for the WPS would be,
(a) 0.5"
(b) 0.275"
(c) 0.25"
ANS: 1”
QW-403.10 For the short-circuiting transfer mode of
the gas metal-arc process, when the qualification test coupon
thickness is less than 1⁄2 in. (13 mm), an increase in
thickness beyond 1.1 times that of the qualification test coupon. For
thicknesses of 1⁄2 in. (13 mm) and greater, use
table QW-451.1 or table QW-451.2, as applicable.
Charlie Chong/ Fion Zhang