Portable Residual Stress Tester for Sulfide Stress Corrosion Cracking Zones
Product Summary
Designed for petrochemical industry, this portable nondestructive tester identifies tensile residual stress peaks in sulfide stress corrosion cracking (SSC) zones. It supports in-situ safety assessment of sour service equipment, helping prevent catastrophic failures in hydrogen sulfide environments.
Key Features
- Measuring hardness and residual stress in one device, enabling dual-parameter on-site testing.
- Intrinsically safe for explosive petrochemical plant environments.
- Provides residual stress safety margin data for life-extension assessment.
- Locates stress-corrosion sensitive zones in sour service equipment.
- Supports fixed-point re-testing on in-service pipelines to verify stress relaxation.
Technical Specifications
| Maximum Load | 1000 N (Max) |
| Actuation Range | 25 mm |
| Loading Speed | 0.01~30 mm/min |
| Data Acquisition Rate | 100 Hz |
| Rated Voltage of Motor | 2.1 V |
| Rated Current of Motor | 3 A |
| Wired/Wireless Power | 220 V / 24V |
| Testing Range | Macro-scale |
| Indentation Depth | 60~120 μm |
Models and Options
Current model: PMA-1010. Additional fixtures can be designed to match specific on-site working conditions.
Materials and Structure
Constructed with cemented carbide, stainless steel, and aluminum alloy components for durability and corrosion resistance in harsh environments.
Applications
Suitable for petrochemical industry, energy and power industry, wind power and renewable energy, aerospace, pharmaceutical, fine chemical, new energy/new materials, and pesticide manufacturing. Ideal for detecting SSC zones in sour service equipment.
Customization
Customized fixtures and testing solutions available for specific on-site requirements.
Case Study
A chemical plant in China used this tester for 10 years on their equipment. It provided accurate residual stress data, contributing to stable operation and effective safety management.
FAQ
Q1: How does the tester detect sulfide stress corrosion cracking risk?
It measures residual stress at critical zones, identifying tensile peaks that are prone to SSC.
Q2: Is the device safe for explosive areas?
Yes, the design is intrinsically safe for use in explosive petrochemical plant environments.
Q3: What materials can it test?
It can test steel alloys, including those used in pressure vessels and pipelines.
Q4: What is the testing speed?
It can complete stress inspection at dozens of points within a short turnaround outage.
Q5: Can it re-test the same locations?
Yes, it supports fixed-point re-testing on in-service pipelines to verify stress relaxation.
Q6: What are the power requirements?
It can operate with wired 220V or wireless 24V power.
Q7: Is training required?
Basic training on indentation testing is recommended, but the operation is straightforward.
Inquiry Information
For pricing and availability, contact: Vincent Zhang (vincent_zhang@zhanghuayaoji.com, +86 181-1890-2332).
Images
Image ID 395: Tester identifying SSC zones. Image ID 410: Locating stress-corrosion zones. Image ID 411: Providing safety margin data.
