NM015STEP.IX
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PH Tool — 5-Step Calibration Block (Type 321 Stainless Steel, ASTM E797)
Precision UT Block for Thickness & Linearity Verification SKU: 5STEP.IXOverview
The PH Tool 5-Step Calibration Block is a precision ultrasonic reference standard designed for thickness measurement and linearity verification in ultrasonic testing (UT). Manufactured from Type 321 Stainless Steel, this block is ideal for calibrating equipment used on stainless steel components and high-temperature alloy applications.
Featuring five accurately machined steps with thicknesses of 0.100", 0.200", 0.300", 0.400", and 0.500", the block allows inspectors to verify gauge accuracy across a practical measurement range. Each step includes a 3/4" × 3/4" face, providing a stable contact surface for consistent and repeatable readings.
Built in accordance with ASTM E797 and supplied with a protective wood case, this calibration block is suitable for field inspection, laboratory calibration, and professional NDT training environments.
What's Included
| Item | Details |
|---|---|
| Calibration Block | 5-step block, Type 321 Stainless Steel |
| Carrying Case | Protective wood case |
| Documentation | Certification / traceability documentation if included |
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 | 3.5 lb |
Key Specifications
| Parameter | Details |
|---|---|
| Product Type | Ultrasonic calibration block |
| Model | 5-Step Block |
| Material | Type 321 Stainless Steel |
| Standard | ASTM E797 |
| Step Thicknesses | 0.100", 0.200", 0.300", 0.400", 0.500" |
| Step Face Size | 3/4" × 3/4" |
| Units | Inch |
| Application | Thickness & linearity calibration |
Performance Features
Multi-Step Calibration Range
Five precision thickness steps allow verification across multiple measurement points.
Type 321 Stainless Steel Construction
Ideal for calibration workflows involving stainless steel and elevated-temperature material applications.
ASTM E797 Compliance
Supports ultrasonic thickness measurement calibration in accordance with recognized standards.
Precision Machining
Ensures reliable, repeatable, and accurate calibration results.
User-Friendly Design
- Clearly defined step geometry
- Stable contact surfaces for consistent probe placement
- Supplied with protective wood case
- Suitable for both lab and field use
Built for Industrial Environments
- Durable construction for repeated calibration use
- Reliable performance in demanding inspection conditions
- Suitable for stainless steel inspection workflows
- Designed for professional NDT applications
Compatibility
Compatible with:
- Ultrasonic thickness gauges
- Ultrasonic flaw detectors
- Single and dual element UT probes
- Calibration and verification procedures
Ideal Applications
- Thickness gauge calibration
- Linearity verification
- Stainless steel component inspection
- Aerospace and power generation industries
- Oil & gas and petrochemical inspection
- NDT training and certification
About PH Tool
PH Tool is a leading manufacturer of ultrasonic calibration standards and reference blocks, delivering precision-engineered solutions for NDT inspection, calibration, and training. Their products are trusted worldwide for accuracy, durability, and compliance with industry standards.