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Curtis — ASTM E317 Resolution Block (RA Block)
Ultrasonic Reference Block for Resolution & Sensitivity Calibration SKU: ASTM-E317Overview
The Curtis ASTM E317 RA Resolution Block is a precision ultrasonic reference standard designed for evaluating system resolution and sensitivity in ultrasonic testing (UT). Manufactured in accordance with ASTM E317, this block is used to verify instrument performance, probe capability, and overall inspection system accuracy.
Available in Aluminum 7075 (clear anodized) or Steel 1018, and in both English and Metric configurations, this block provides flexibility to meet various inspection standards and requirements. It features carefully machined reflectors that allow inspectors to assess near-surface resolution and signal separation capability.
Supplied with certification traceable to NIST and housed in a protective hardwood case, the ASTM E317 block is widely used in calibration laboratories, training environments, and field inspections across industries such as aerospace, oil & gas, and manufacturing.
What's Included
| Item | Details |
|---|---|
| Resolution Block | ASTM E317 RA block (Aluminum or Steel) |
| Certification | NIST traceable calibration certificate |
| Carrying Case | Hardwood storage case |
Box Dimensions & Shipping Weight (Estimated)
| Parameter | Imperial |
|---|---|
| Length | 10.0 in |
| Width | 8.0 in |
| Height | 3.0 in |
| Dimensions (L × W × H) | 10.0 × 8.0 × 3.0 in |
| Weight | 3.0 lb |
Key Specifications
| Parameter | Details |
|---|---|
| Product Type | Ultrasonic calibration / reference block |
| Standard | ASTM E317 |
| Material Options | Aluminum 7075 (clear anodized) or Steel 1018 |
| Units | English or Metric |
| Certification | NIST traceable |
| Application | UT resolution and sensitivity evaluation |
Performance Features
ASTM E317 Compliance
Meets industry standards for ultrasonic system evaluation.
Resolution Verification
Allows assessment of probe and system ability to separate signals.
Material Options Available
Aluminum or steel configurations for different testing needs.
Certified Accuracy
Includes NIST traceable certification for reliable calibration.
User-Friendly Design
- Clearly defined reflectors for easy interpretation
- Supplied in protective hardwood case
- Suitable for lab and field use
- Supports efficient calibration workflows
Built for Industrial Environments
- Precision-machined for repeatable results
- Durable construction for long-term use
- Reliable performance in calibration settings
- Designed for professional NDT applications
Compatibility
Compatible with:
- Ultrasonic flaw detectors
- UT transducers (straight beam and angle beam)
- Calibration and verification procedures
- Training and qualification programs
Ideal Applications
- Ultrasonic system calibration
- Resolution and sensitivity checks
- Probe performance evaluation
- Aerospace and manufacturing QA/QC
- Oil & gas inspection
- Training and certification environments
About Curtis
Curtis Industries is a trusted manufacturer of ultrasonic calibration blocks and reference standards, providing high-quality solutions for NDT inspection and training. Their products are widely used for accuracy, compliance, and reliability in professional testing environments.