Marine steel welding welding manual ultrasonic inspection test block CB/T3559-2011

1. CTRB-1 type test block is suitable for the thickness of the base material of the weld under test ranging from 6 mm to 20mm. Figure 11-1 shows the shape and size of the test block. 2. CTRB-2 type test block is suitable for the base material of the inspected weld with a thickness of 10 ~ 50mm. Figure 11-2 shows the shape and size of the test block. 3. CTRB-3 type test block is suitable for the thickness of the base material of the inspected weld between 50 and 100mm. Figure 11-3 shows the shape and size of the test block.