Description
Corrosion probes and corrosion coupons are essential tools in the field of industrial maintenance, used extensively to monitor and analyze the rate of corrosion within various environments, such as pipelines, storage tanks, and processing equipment. These tools play a crucial role in ensuring the longevity and safety of infrastructure by providing valuable data that helps in the prevention of catastrophic failures due to corrosion.
Corrosion Probes are sophisticated instruments that offer real-time monitoring of corrosion rates. They are typically inserted into the system and continuously measure the electrochemical reactions occurring on their surfaces, which directly correlate to the rate of corrosion. This immediate feedback allows for prompt decisions regarding maintenance and protection strategies, thus protecting assets and reducing downtime.
Corrosion Coupons, on the other hand, are a more traditional but highly effective method of assessing corrosion rates. These are small, standardized samples of metal that are exposed to an environment for a set period, then removed and analyzed to determine the loss of material mass. This loss indicates the aggressiveness of the environment and helps predict the lifespan of the entire system. Corrosion coupons provide a direct, tangible means of measuring the material degradation and are invaluable for long-term corrosion studies, helping industries comply with safety standards and maintain system integrity.
Parameters
Corrosion coupons:
| Material | Stainless Steel 304、Stainless Steel 316、DSS F51、Carbon Steel A105N、Inconel 625 |
| Operating Temperature | -20±120℃ |
| Features | Firstly, Easy to Operating |
| Secondly, High Accuracy Long Life | |
| At last, High Efficiency, Low cost | |
| Payment | TT/LC |
| Advantages | Firstly, they are lightweight and flexible. |
| Secondly, Nice Injection efficiency. | |
| At last, Accurate location tracking. |
Corrosion probes
| Product Specifications | |
| Brand Name: | EMT Pigging |
| Product Name: | Resistance Probe |
| Material: | Stainless Steel 316, L DUPLEX SS |
| Size: | 3″ x 3/4″ x 1/16″ |
| Design Temperature: | -20℃ to 200℃ |
| Design Pressure: | 0 to 26 MPa |
| Keyword: | High Pressure Hydrogen Probe |
| Feature: | High Accuracy and Low Cost |
| Certification: | ISO 9001 |
| Additional Technical Details | |
| Metal Material: | Stainless Steel 316, L DUPLEX SS |
| Sealing Material: | Teflon/Fluororubber/Viton O-ring |
| Access Fitting Body: | 2”welded; 2”ANSI Flange (suffix “pressure rating & pipe size & sealing type can meet customer needs) |
| Protective Cover: | PTFE Coated |
| Flange Size: | ANSI 2″RF (or RJ) |
| Body Material: | CS, 304SS, 316SS, 316LSS, DUPLEX SS |
| Nozzle Material: | 304SS, 316SS, 316LSS, DUPLEX SS |
Together, corrosion probes and corrosion coupons offer a comprehensive approach to managing and mitigating the effects of corrosion, making them indispensable tools in the arsenal of any industry dealing with corrosive environments.
Selection Model of Corrosion Probes
Corrosion Probes
| Model | |||||||||||||||
| ECP | Electrical Resistance Probes | ||||||||||||||
| -Code | Plug | ||||||||||||||
| Type | Material | Sealing material | |||||||||||||
| 0 | Not Required | 0 | Carbon steel | 0 | Not Required | ||||||||||
| 1 | Hollow plug | 1 | 316 stainless steel | 1 | Fluorine rubber sealing ring/PTFE main seal | ||||||||||
| 2 | 316L stainless steel | 2 | HNBR | ||||||||||||
| 3 | F51 duplex stainless steel | ||||||||||||||
| Pxxx | 4 | INCONEL nickel based alloy | |||||||||||||
| -Code | Temperature and pressure gauge assembly | ||||||||||||||
| Txxx | Connection size | Body material | Temperature and pressure gauge material | ||||||||||||
| 0 | Not Required | 0 | 304 stainless steel | 0 | Not Required | ||||||||||
| 1 | 1/2″ | 1 | 316 stainless steel | 1 | 304 stainless steel | ||||||||||
| 2 | 3/4″ | 2 | 316L stainless steel | 2 | 316 stainless steel | ||||||||||
| 3 | F51 duplex stainless steel | ||||||||||||||
| -Code | Probe assembly | ||||||||||||||
| Dxx | Connection size | Body material | Pipeline specification (x ″) | ||||||||||||
| 0 | Not Required | 0 | Carbon steel | Probe length varies with pipeline specifications | |||||||||||
| ‐Lx″ | 1 | 1/4″ | 1 | 304 stainless steel | |||||||||||
| 2 | 1/2″ | 2 | 304L stainless steel | ||||||||||||
| 3 | 316 stainless steel | ||||||||||||||
| 4 | 316L stainless steel | ||||||||||||||
| 5 | F51 duplex stainless steel | ||||||||||||||
| Example: ECP-P121-T021-D02-L6 “ | |||||||||||||||
Corrosion Coupons
| Model | |||||||||||||
| CC | Corrosion Coupons | ||||||||||||
| -Code | Plug Body Assembly | ||||||||||||
| Pxxx | Type | Material | Sealing Material | ||||||||||
| 0 | No Request | 0 | CS | 0 | No Request | ||||||||
| 1 | Hollow Plug Body | 1 | 316SS | 1 | Viton O-Ring / PTFE Primary Packing | ||||||||
| 2 | Solid Plug Body | 2 | 316LSS | 2 | HNBR | ||||||||
| 3 | DUPLEX SS | ||||||||||||
| 4 | INCONEL | ||||||||||||
| Type of Coupon Holder | |||||||||||||
| SR | Fixed Coupon Holder for assembling rectangular coupon | ||||||||||||
| AR | Adjustable Coupon Holder for assembling rectangular coupon | ||||||||||||
| LR | Ladder Coupon Holder for assembling rectangular coupon | ||||||||||||
| SC | Fixed Coupon Holder for assembling circular coupon | ||||||||||||
| AC | Adjustable Coupon Holder for assembling circular coupon | ||||||||||||
| -Pipe Size | |||||||||||||
| x | Pipe Size in inch | ||||||||||||
| – Coupon Size | |||||||||||||
| A×B×C | Coupon Size in inch or mm | ||||||||||||
| – Coupon Material | |||||||||||||
| x | Grade | ||||||||||||
| -Finishing of Coupon | |||||||||||||
| 0 | Mill | ||||||||||||
| 1 | Glass Bead | ||||||||||||
| – Isolation Gasket | |||||||||||||
| 0 | No Gasket | ||||||||||||
| 1 | Nylon Gasket | ||||||||||||
| 2 | PTFE Gasket | ||||||||||||
| For Example CC-P221-SR-6″-3″×1/2″×1/8″-MS1018-0-2 CC: Corrosion Coupon | |||||||||||||
| P221: Solid Plug Body in 316LSS Viton O-Ring and PTFE Primary Packing | |||||||||||||
| SR-6″:Fixed Coupon Holder for assembling rectangular coupons and for 6″pipe | |||||||||||||
| 3″×1/2″×1/8″: Coupon Size MS1018: Coupon Material | |||||||||||||
| 0: Finishing of Coupon is Mill 2: Material of Isolation Gasket is PTFE | |||||||||||||
Applications
corrosion coupons
Baseline Corrosion Rate Determination:
Corrosion coupons are primarily used to determine the baseline corrosion rates of materials in specific environments. By exposing a standardized piece of metal to the operational environment for a set period and then analyzing the extent of its degradation, engineers can quantify how quickly materials are deteriorating.
Material Suitability Testing:
Different materials can be tested under the same environmental conditions to compare their corrosion resistance. This helps in selecting the most appropriate material for specific applications, ensuring cost-effectiveness and durability.
Effectiveness of Corrosion Inhibitors:
Corrosion coupons are used to test the effectiveness of corrosion inhibitors added to the system. By comparing the corrosion rates before and after the application of inhibitors, the efficacy of the protective measures can be evaluated.
Compliance and Safety Checks:
Regular use of corrosion coupons helps industries comply with safety and quality standards by providing tangible proof of system integrity and operational safety.
Applications of Corrosion Probes
Real-Time Corrosion Monitoring:
Corrosion probes provide continuous monitoring of corrosion rates, offering real-time data that is crucial for maintaining the operational efficiency of industrial equipment. This continuous monitoring helps in detecting corrosion issues before they lead to system failures.
Environmental Condition Assessment:
By measuring the electrochemical properties of the environment, corrosion probes help assess the corrosivity of different operational conditions. This information is vital for adjusting process parameters to minimize corrosion.
Predictive Maintenance:
The real-time data provided by corrosion probes can be used to predict when maintenance or replacement of equipment might be necessary, optimizing maintenance schedules and reducing downtime.
High-pressure and High-temperature Applications:
Advanced corrosion probes are designed to withstand extreme conditions, making them suitable for use in environments like deep-sea drilling, chemical reactors, and high-pressure pipelines where traditional monitoring methods might fail.
System Design and Improvement:
The insights gained from both corrosion coupons and probes are crucial for designing systems that are more resistant to corrosion. They also help in improving existing systems by pinpointing areas where corrosion protection can be enhanced.








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