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ASME 19 Block (ASME No.1 Calibration Block)
ASME 19 Block (ASME No.1 Calibration Block)
ASME 19 Block (ASME No.1 Calibration Block)
ASME 19 Block (ASME No.1 Calibration Block)
ASME 19 Block (ASME No.1 Calibration Block)
ASME 19 Block (ASME No.1 Calibration Block)
Specifications
Description
ASME 19 Block (ASME No.1 Calibration Block)
A flat calibration block for ultrasonic testing of welds specified in ASME BPVC Section V, designed for thin plate and thin-wall welds with thickness ≤ 25 mm.
General Information
Full Name: ASME 19 Calibration Block / ASME No.1 Non-Piping Calibration Block
Standard Reference: ASME BPVC Section V, Article 4, T-434.2.1
Main Functions: Calibration of ultrasonic tester sensitivity, DAC curve, sound velocity and sweep range
Application: Flat plate, vessel and structural welds (non-piping service)
Applicable Workpiece Thickness: Weld & base material ≤ 25 mm
Main Specifications
  • Thickness (T): 19 mm (0.75 in)
  • Overall Dimension: 19×150×120 mm, rectangular flat block
  • Artificial Defects:
    • Three Side-Drilled Holes (SDH): Φ2.5 mm (3/32 in) diameter, 38 mm (1.5 in) length through holes at positions: 0.25T, 0.5T, 0.75T
    • Two Notches: 25×6×0.38 mm (Length × Width × Depth) Notch depth: 2%T ≈ 0.38 mm
  • Material: Carbon steel (1018), stainless steel (304/316L), etc. Material shall match the P-No of test pieces
Comparison with ASME 20 Block
Calibration Block Thickness Applicable Weld Thickness Hole Diameter Notch Depth
ASME 19 19 mm ≤ 25 mm Φ2.5 mm 0.38 mm
ASME 20 20 mm ≤ 20 mm Φ2/Φ3 mm None (Flat Bottom Hole)
Operation Guidelines
  • DAC Curve: Establish Distance-Amplitude Curve by three side-drilled holes for defect evaluation
  • Sensitivity Calibration: Set testing sensitivity with the Φ2.5 mm side-drilled hole at 0.5T position
  • Sound Velocity & Sweep Range: Calibrate via the 19 mm block thickness
  • Curvature Requirement: For flat plates and large-diameter vessels (OD > 500 mm). Curved blocks shall be used for pipes with OD ≤ 500 mm
Typical Applications
Thin welds of pressure vessels, storage tanks and boilers
Butt & fillet welds of steel structures, marine and construction machinery
On-site ultrasonic testing in power, petrochemical and oil & gas industries
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ASME 19 Block (ASME No.1 Calibration Block)

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ASME 19 Block (ASME No.1 Calibration Block)
ASME 19 Block (ASME No.1 Calibration Block)
ASME 19 Block (ASME No.1 Calibration Block)

Testech Group Co., Ltd

Verified Supplier
2 Years
beijing, beijing
Business Type :
Manufacturer
Main Products :
Non Destructive Testing Equipment, MPI Magnetic Particle Inspection, Coating Thickness Gauge
Total Annual :
250 US dollar-285 US dollar
Employee Number :
30~35
Certification Level :
Verified Supplier
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