
NM01DSCBLOCKICS
Choose Quantity
PH Tool — DSC Calibration Block
Inch-Dimension Ultrasonic Calibration Block, 1018 Carbon Steel
SKU: DSCBLOCK.ICS
Overview
The PH Tool DSC Calibration Block is an AWS-type ultrasonic reference standard designed for shear-wave distance and sensitivity calibration. Manufactured from 1018 carbon steel with inch-dimension reference markings, it provides an acoustically representative standard for ultrasonic inspection procedures performed on carbon-steel welds and components.
The block incorporates opposing 1 in and 3 in radii, a precision radiused slot, a side-drilled through-hole, and reference markings for commonly used 45°, 60°, and 70° angle-beam transducers. These features support sound-path calibration, sensitivity adjustment, beam-exit-point verification, and actual refracted-angle measurement.
SKU DSCBLOCK.ICS is suitable for professional field, laboratory, fabrication, maintenance, and QA/QC programs requiring repeatable ultrasonic equipment setup in accordance with applicable AWS and ASTM procedures.
What's Included
| Item | Details |
|---|---|
| Calibration Block | PH Tool DSC ultrasonic calibration block |
| Block Material | 1018 carbon steel |
| Measurement System | Inch |
| Reference Markings | 0°, 45°, 60°, and 70° |
| Documentation | Manufacturer calibration and material documentation |
| Inspection Method | Ultrasonic Testing / UT |
| Manufacturer | PH Tool |
| SKU | DSCBLOCK.ICS |
Note: A fitted wooden storage case and additional dimensional documentation may be available separately unless specifically included in the ordered configuration.
Box Dimensions & Shipping Weight (Estimated)
| Parameter | Imperial |
|---|---|
| Length | 8.0 in |
| Width | 6.0 in |
| Height | 4.0 in |
| Dimensions (L × W × H) | 8.0 × 6.0 × 4.0 in |
| Weight | 7.0 lb |
Key Specifications
| Parameter | Details |
|---|---|
| Product Type | Ultrasonic calibration and reference block |
| Block Type | DSC / AWS type |
| Material | 1018 carbon steel |
| Measurement Units | Inches |
| Nominal Block Length | 4.0 in |
| Nominal Block Thickness | 1.0 in |
| Small Radius | 1.0 in |
| Large Radius | 3.0 in |
| Radiused Slot Depth | 0.375 in |
| Radiused Slot Width | 0.032 in |
| Through-Hole Diameter | 0.125 in |
| Angle Markings | 45°, 60°, and 70° |
| Wedge Exit-Point Reference | 0° reference point |
| Primary Use | Shear-wave distance and sensitivity calibration |
| Inspection Method | Ultrasonic Testing / UT |
| Applicable Procedures | ASTM E164 and applicable AWS requirements |
| Manufacturer | PH Tool |
| SKU | DSCBLOCK.ICS |
Calibration Functions
| Function | Block Feature |
|---|---|
| Sound-Path Calibration | Opposing 1 in and 3 in radii |
| Sensitivity Adjustment | Radiused slot and reference reflectors |
| Wedge Exit-Point Verification | 0° reference point |
| Refracted-Angle Verification | Through-hole with 45°, 60°, and 70° markings |
| Angle-Beam Probe Setup | Precision-machined radius and reference geometry |
| System Performance Check | Repeatable carbon-steel reference responses |
Performance Features
DSC Reference Geometry
Provides standardized features for shear-wave distance calibration, sensitivity adjustment, and angle-beam probe verification.
1018 Carbon Steel Construction
Offers acoustic characteristics suitable for calibration work associated with carbon-steel welds, structures, and industrial components.
Opposing Reference Radii
The 1 in and 3 in radii support sound-path and distance calibration across commonly used angle-beam inspection ranges.
Precision Radiused Slot
The 3 in radius incorporates a 0.375 in deep by 0.032 in wide slot for sensitivity adjustment and system-response verification.
Angle-Verification Features
A 0.125 in through-hole and corresponding 45°, 60°, and 70° markings support measurement of the transducer’s actual refracted angle.
Wedge Exit-Point Reference
The integrated 0° reference point helps technicians determine the sound-beam exit point of a compatible angle-beam wedge.
User-Friendly Design
Inch-dimension markings support U.S. customary inspection procedures
Compact 4 in format supports convenient field transportation
Precision-machined surfaces support repeatable calibration
Multiple reference features reduce the need for separate setup blocks
Clear angle markings support common shear-wave transducers
Suitable for routine pre-inspection and post-inspection verification
Easy to integrate into field and laboratory UT kits
Durable carbon-steel construction supports repeated professional use
Built for Industrial Environments
Designed for professional ultrasonic weld inspection programs
Suitable for fabrication, construction, maintenance, and QA/QC workflows
Practical for field and laboratory equipment verification
Supports calibration before and during ultrasonic examinations
Carbon-steel construction provides relevant acoustic performance
Precision geometry supports repeatable instrument setup
Suitable for technician training and qualification activities
Intended for use according to applicable ultrasonic inspection procedures
Compatibility
Compatible with:
Ultrasonic flaw detectors
Angle-beam transducers and wedges
45° shear-wave transducers
60° shear-wave transducers
70° shear-wave transducers
Straight-beam transducers for applicable checks
Pulse-echo ultrasonic inspection systems
Carbon-steel weld inspection procedures
AWS-based ultrasonic inspection workflows
ASTM E164-based calibration procedures
Field and laboratory UT programs
Industrial QA/QC documentation systems
The block material, dimensions, certification, and reference geometry should be confirmed against the applicable inspection procedure before use.
Ideal Applications
Shear-wave distance calibration
Sensitivity adjustment
Wedge exit-point determination
Refracted-angle verification
Angle-beam transducer setup
Weld inspection preparation
Carbon-steel structural inspection
Bridge and construction inspection
Fabrication QA/QC
Maintenance inspection programs
Field flaw-detector verification
NDT laboratory calibration
Technician training and qualification
Procedure development and demonstration
Industrial ultrasonic testing
About PH Tool
PH Tool manufactures precision NDT reference standards, ultrasonic calibration blocks, electrical-discharge-machined notch standards, and custom test specimens. Its products support inspection professionals working in aerospace, energy, transportation, fabrication, manufacturing, maintenance, and industrial quality-control environments.


