IIW V2 Ultrasonic Inspection Calibration Test Block

IIW V2 Ultrasonic Inspection Calibration Test Block

Standard: ISO7963-2010

IIW2 test block (V-2 test block) is the standard test block approved by the International Welding Society. V-2 (DIN54122) compared with IIW test block, V-2 test block has the advantages of light weight and easy to carry, especially suitable for field use. 

TYPE	V2
DIMENSION (mm)	TOLERANCE	CHECK RESULT
75	±0.10	Qualified
43.3	±0.05	Qualified
12.5	±0.05	Qualified
(⊥)	＜0.05	Qualified
(∥)	＜0.03	Qualified
(Ra)		Ra≤3.2um
ф1.5	±0.05	Qualified
	＜R0.10	Qualified
R50	±0.10	Qualified
R25	±0.10	Qualified

Main Points of use:

(1) The incident point and sensitivity margin of the inclined probe were measured by using an arc reflection surface with a radius of R50mm;

(2) Using the reflection surface of 5-pass hole, the refraction range of tilt probe is 45°-65° and 65°-75°, respectively.

(3) The horizontal and vertical linearity of the flaw detector can be measured by using multiple p-wave reflections of the bottom with a thickness of 12.5mm;

(4) Two arc surfaces, R25 and R50, are used to correct the time axis and zero point.