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What is a Circular Corrosion Coupon?
Circular corrosion coupons are an important tool used to measure the corrosion rate of pipelines in many industries. In industries such as oil and gas, pipe rust or damage due to corrosion is a common problem. This is where the circular corrosion coupon comes in.
These circular coupons are essentially samples that are inserted into the tube over a period of time. After this, the coupons are removed and analyzed. The main indicator derived from these circular corrosion coupons is weight loss, which is a direct result of material corrosion.
By using circular corrosion coupons, the operator can clearly understand the degree of corrosion inside the pipe. Data on carbon coupon weight loss provides critical information on corrosion rates. Armed with this knowledge, operators can take appropriate measures to stop the corrosion process.
The use of circular corrosion coupons plays an important role in effectively managing and reducing the effects of corrosion. As a result, the service life of the pipeline can be extended, ensuring that its operation remains efficient and reliable.
Nome | Corrosion Coupon EMT For Pipeline Testing | |
| Material | Aço inoxidável 304, aço inoxidável 316, DSS F51, aço carbono A105N, Inconel 625 | |
| Temperatura de operação | -20~+120 ℃ | |
| Características | Firstly, it is easy to operate | |
| Secondly, high accuracy and long life | ||
| At last, high efficiency and low cost | ||
| Pagamento | TT/LC | |
| Vantagens | Primeiro, eles são leves e flexíveis. | |
| Em segundo lugar, boa eficiência de injeção. | ||
| At last, accurate corrosion testing. |
| Modelo | |||||||||||||
| CC | Cupons de corrosão | ||||||||||||
| -Código | Conjunto do corpo do plugue | ||||||||||||
| Pxxx | Tipo | Material | Material de vedação | ||||||||||
| 0 | Nenhum pedido | 0 | CS | 0 | Nenhum pedido | ||||||||
| 1 | Corpo oco do plugue | 1 | 316SS | 1 | Viton O-Ring / Embalagem primária de PTFE | ||||||||
| 2 | Corpo de plugue sólido | 2 | 316LSS | 2 | HNBR | ||||||||
| 3 | DUPLEX SS | ||||||||||||
| 4 | INCONEL | ||||||||||||
| Type of Coupon Holder | |||||||||||||
| RS | Fixed Coupon Holderfor for Assembling a Rectangular Coupon | ||||||||||||
| RA | Adjustable Coupon Holder for assembling a Rectangular Coupon | ||||||||||||
| LR | Ladder Coupon Holder for assembling a Rectangular Coupon | ||||||||||||
| SC | Fixed Coupon Holder for assembling a Circular Coupon | ||||||||||||
| AC | Adjustable Coupon Holder for assembling a Circular Coupon | ||||||||||||
| -Tamanho do tubo | |||||||||||||
| x | Tamanho do tubo em polegadas | ||||||||||||
| Tamanho do cupom | |||||||||||||
| A×B×C | Coupon Size in inch or mm | ||||||||||||
| Material do cupom | |||||||||||||
| x | Nota | ||||||||||||
| Finishing the Coupon | |||||||||||||
| 0 | Moinho | ||||||||||||
| 1 | Conta de vidro | ||||||||||||
| Isolation Gasket | |||||||||||||
| 0 | Sem junta | ||||||||||||
| 1 | Junta de náilon | ||||||||||||
| 2 | Junta de PTFE | ||||||||||||
| For Example: CC-P221-SR-6″-3″×1/2″×1/8″-MS1018-0-2 CC: Corrosion Coupon P221: Corpo sólido do plugue em O-Ring 316LSS Viton e embalagem primária de PTFE 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 | |||||||||||||
Calculate the Corrosion Rate
By reducing the sample weight, one can calculate the corrosion rate using a straightforward ASTM formula:
V: Taxa de corrosão (μm/ano)
M∆: Alteração do peso da amostra (mg)
ρ: Densidade da liga (g/cm3)
S: Área da amostra exposta ao meio ambiente (cm2)
t: Duração da exposição (h)
K: Coeficiente fixo (106*8,76، Com unidades usadas para outros termos)
Primary Advantages of Circular Corrosion Coupon
- Fácil de usar: The round corrosion coupon can be easily put in and removed from the pipe for testing, making it a convenient choice for corrosion detection.
- Versatilidade: These coupons can be made from a variety of materials commonly used in industry and can be accurately tested in a variety of environments.
- Direct Measurement: By directly measuring the weight loss of the joint, the corrosion rate can be accurately determined. This can provide valuable insights into the service life and maintenance requirements of the equipment.
- Cost-Effective: Circular corrosion coupons are relatively inexpensive to produce and use, making them a cost-effective solution for ongoing corrosion monitoring.
- Preventive Action: The data obtained from these coupons can help predict future corrosion patterns, allowing for timely preventive measures. This can extend the lifespan of the pipelines and avoid costly repairs or replacements.
- Adaptável: They can be used alongside other corrosion monitoring tools, such as electrical resistance probes and online analyzers, to provide comprehensive information about the corrosion process.
- Multiple Corrosion Types: Different types of corrosion, such as pitting and uniform corrosion, can be studied using circular corrosion coupons, making them a flexible tool for corrosion analysis.
- Reliable: They provide a reliable and time-tested method for monitoring corrosion. The use of corrosion coupons is a widely accepted practice in many industries, including oil and gas, water treatment, and manufacturing.
| Modelo | ||||||
EMT-CIPA | Access Fitting Body of Corrosion Coupon | |||||
| The material of Access Fitting Body | ||||||
| 0 | CS | |||||
| 1 | 316SS | |||||
| 2 | 316LSS | |||||
| 3 | DUPLEX SS | |||||
| The Type of Access Fitting Body | ||||||
| B | 2″Welded（suffix “pressure rating” can be added to B） | |||||
| F | 2″ANSI Flange（suffix “pressure rating & sealing type” can be added to F） | |||||
| -Tee Size- pressure rating & sealing type if the flanged end | ||||||
| 0 | No Tee | |||||
| 1 | 1/4″NPT(F)Tee | |||||
| 2 | 1/2″NPT(F)Tee | |||||
| 3 | 3/4″NPT(F)Tee | |||||
| 4 | 1″NPT(F)Tee | |||||
| 5 | Hole for 1/4″SWN Flange | |||||
| 6 | Hole for 1/2″SWN Flange | |||||
| 7 | Hole for 3/4″SWN Flange | |||||
| 8 | Hole for 1″SWN Flange | |||||
| -Protective Cover Type/ Material | ||||||
| 0 | No Protective Cover | Material | ||||
| 1 | Without hole | CS or 0 | ||||
| 2 | With hole | SS or 1 | ||||
| 3 | Bleed Valve | DSS or 3 | ||||
| 4 | Bleed Valve, & Pressure Gauge | |||||
| For Example, EMT-CIPA-0F600#RF-2-1/CS shows 2″ANSI 600#RF Flange Access Fitting Body in CS, 1/2″NPT(F)Tee, Protective Cover in CS without hole 0F600#RF: 0F_ Access Fitting Body is Flanged in CS, 600#RF _Size is 2″ANSI 600#RF, 2:Tee size is 1/2NPT(F) 1: Protective cover type is without a hole /CS: Protective cove material in CS | ||||||
Our Services
Nosso serviço
We offer a wide range of corrosion coupons designed to meet a variety of specific corrosion monitoring requirements. Don’t hesitate to contact us to find the solution that best suits your needs.
In order to demonstrate the high quality of our products, we offer our customers the option to request samples.
We pride ourselves on providing timely customer service. Our team is ready to provide immediate feedback and address your queries.
We strive to provide the fastest delivery time to ensure that you receive your order in a timely manner. Nosso suporte online está disponível 24 horas por dia, 7 dias por semana.
Packaging & Delivery
Our circular corrosion coupons are packaged in CASES, which offer the following benefits:
- Eles são leves, apresentam linhas limpas, fornecem isolamento e apresentam alta resistência sem suscetibilidade à deformação.
- Eles eliminam a necessidade de fumigação, tornando o processo de envio mais eficiente.
Our commitment is to deliver top-quality circular corrosion coupons promptly and efficiently, prioritizing customer satisfaction at all times.
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