4-Step Calibration Block

YUSHI offers a comprehensive range of step calibration blocks in various thickness steps and materials, along with custom manufacturing services. All the Blocks in accordance with ASTM E797-05.

Should you not find the required type in our catalog, please contact me at any time through the contact information on the website.

4-Step Calibration Block

5-Step Calibration Block

6-Step Calibration Block

6-Step 1mm, 3mm, 5mm, 10mm, 15mm, 20mm	6-Step 2.5mm, 5mm, 10mm, 15mm, 20mm, 25mm

7-Step Calibration Block

7-Step 1mm, 1.5mm, 2mm, 4mm, 6mm, 8mm, 10mm	7-Step 3mm, 12mm, 24mm, 30mm, 36mm, 42mm, 48mm

8-Step Calibration Block

8-Step 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm	Ultra Thin 8-Step 0.030'', 0.040'', 0.050'', 0.060'', 0.070'', 0.080'', 0.090'', 0.100''

10-Step Calibration Block

Special Step Block

VersaTip Calibration Block	Curved Step Calibration Block

ABS Block Case

Block Case for 4-Step, 5-Step and 6-Step	Block Case for 7-Step, 8-Step and 10-Step

Core Applications of Ultrasonic Thickness Step Wedges

• Thickness Gauge Calibration

  Establish time-to-thickness correlation for material velocity settings

       Verify measurement accuracy per ASTM E797 standards

• Linearity Validation

Check instrument linearity across thickness ranges

Identify dead zones and measurement blind spots

• Transducer Performance Testing

  Evaluate probe resolution

  Validate near-surface measurement capability

• Reference Standardization

  Provide traceable thickness references

  Support ISO 17025-compliant calibration certificates

• Material-Specific Calibration

  Compensate for acoustic velocity variations

Thickness step wedges provide essential graduated reference standards for calibrating ultrasonic thickness gauges, validating measurement linearity, compensating for material velocity differences, and ensuring compliance with international inspection codes - particularly where ±0.1mm measurement accuracy is critical.