9: Non-destructive Examination
API ICP Self Study Materials
API ICP Self Study Materials
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c. Fillet weld gauge—offers a quick and precise means of measuring the<br />
more commonly used fillet weld sizes. The types of fillet weld gauges<br />
include:<br />
1. Adjustable fillet weld gauge (see Figure 15)—measures weld sizes for fitups<br />
with 45° members and welds with unequal weld leg lengths.<br />
2. Skew-T fillet weld gauge (see Figure 16)—measures the angle of the<br />
vertical member.<br />
3. The weld fillet gauge (see Figure 17)—a quick go/no-go gauge used to<br />
measure the fillet weld leg length. Gauges normally come in sets with weld<br />
leg sizes from 1/8 in. (3 mm) to 1 in. (25.4 mm). (Figure 18) shows a weld<br />
fillet gauge being used to determine if the crown has acceptable concavity<br />
or convexity.