What Are The Key Features of ASTM A269 825 Stainless Steel Coil Tube?

Content Menu

● Introduction to ASTM A269

>> Chemical Composition of Nickel Alloy 825

● Key Features of ASTM A269 825 Stainless Steel Coil Tubes

>> 1. Corrosion Resistance:

>> 2. High-Temperature Resistance:

>> 3. Flexibility and Formability:

>> 4. Durability:

● Specifications and Dimensions

>> Applications

>> Manufacturing Process

● Conclusion

● Frequently Asked Questions

>> 1. What is the primary advantage of using ASTM A269 825 stainless steel coil tubes?

>> 2. What are the typical applications of ASTM A269 825 coil tubes?

>> 3. What is the chemical composition of Nickel Alloy 825?

>> 4. What are the standard dimensions for ASTM A269 825 coil tubes?

>> 5. How are ASTM A269 825 coil tubes manufactured?

● Citations:

ASTM A269 825 stainless steel coil tubes are renowned for their exceptional corrosion resistance and versatility in various industrial applications. These tubes are crafted from Nickel Alloy 825, which is a highly specialized material designed to withstand aggressive environments. In this article, we will delve into the key features, applications, and specifications of ASTM A269 825 stainless steel coil tubes, along with visual aids to enhance understanding.

Introduction to ASTM A269

ASTM A269 is a standard specification for seamless and welded austenitic stainless steel tubing for general corrosion-resisting and low- or high-temperature service. This standard covers a wide range of stainless steel grades, including TP304, TP304L, TP316, TP316L, and others. However, when it comes to ASTM A269 825 stainless steel coil tubes, the focus shifts to Nickel Alloy 825, which offers superior resistance to corrosion in both oxidizing and reducing environments.

Chemical Composition of Nickel Alloy 825

Nickel Alloy 825 is composed of:

- Nickel (Ni): 38.5% minimum

- Chromium (Cr): 20% minimum

- Molybdenum (Mo): 2.6% minimum

- Copper (Cu): 1.7% maximum

- Titanium (Ti): 0.7% maximum

- Carbon (C): 0.03% maximum

This unique composition provides excellent resistance to both sulfuric and phosphoric acids, making it ideal for applications in chemical processing and oil and gas industries.

Key Features of ASTM A269 825 Stainless Steel Coil Tubes

1. Corrosion Resistance:

The primary advantage of using ASTM A269 825 stainless steel coil tubes is their superior corrosion resistance. They are designed to withstand harsh chemical environments, including those involving sulfuric and phosphoric acids.

2. High-Temperature Resistance:

These tubes can operate effectively at high temperatures, making them suitable for applications in heat exchangers and high-temperature processing equipment.

3. Flexibility and Formability:

ASTM A269 825 coil tubes are highly flexible and can be bent into complex shapes without compromising their structural integrity. This feature is particularly useful in applications requiring intricate tubing configurations.

4. Durability:

The tubes are crafted to last, with a strong resistance to pitting and crevice corrosion, ensuring long service life even in aggressive environments.

Specifications and Dimensions

- Outside Diameter: Typically ranges from 1/8" to 3/4" (3.18 mm to 19.05 mm).

- Wall Thickness: Varies from 0.010" to 0.083" (0.25 mm to 2.11 mm).

- Length: Available in custom lengths, often supplied in coils for ease of handling and installation.

- Surface Finish: Often provided in bright annealed condition for smooth surface finish.

Applications

ASTM A269 825 stainless steel coil tubes are widely used in:

- Chemical Processing: Due to their excellent corrosion resistance, these tubes are ideal for handling aggressive chemicals.

- Oil and Gas Industry: Used in applications where resistance to sulfuric and phosphoric acids is crucial.

- Heat Exchangers: Their high-temperature resistance makes them suitable for use in heat exchangers.

Manufacturing Process

The manufacturing process involves several key steps:

1. Material Selection: Nickel Alloy 825 is selected for its superior corrosion resistance properties.

2. Seamless or Welded Tubing: Tubes can be manufactured using either seamless or welded processes, depending on the application requirements.

3. Annealing: Tubes are annealed to relieve stresses and improve formability.

4. Coiling: The tubes are then coiled to facilitate easy handling and installation.

Conclusion

ASTM A269 825 stainless steel coil tubes offer a unique combination of corrosion resistance, flexibility, and durability, making them an ideal choice for applications in chemical processing, oil and gas, and heat exchangers. Their ability to withstand aggressive chemical environments and high temperatures ensures long service life and reliability.

Frequently Asked Questions

1. What is the primary advantage of using ASTM A269 825 stainless steel coil tubes?

The primary advantage is their superior corrosion resistance, especially in environments involving sulfuric and phosphoric acids.

2. What are the typical applications of ASTM A269 825 coil tubes?

These tubes are commonly used in chemical processing, the oil and gas industry, and heat exchangers due to their high-temperature resistance and corrosion properties.

3. What is the chemical composition of Nickel Alloy 825?

Nickel Alloy 825 is composed of 38.5% Nickel, 20% Chromium, 2.6% Molybdenum, 1.7% Copper, 0.7% Titanium, and 0.03% Carbon.

4. What are the standard dimensions for ASTM A269 825 coil tubes?

The outside diameter typically ranges from 1/8" to 3/4", and the wall thickness varies from 0.010" to 0.083".

5. How are ASTM A269 825 coil tubes manufactured?

The tubes are manufactured using either seamless or welded processes, followed by annealing and coiling to enhance formability and ease of installation.

Citations:

[1] https://www.mtstainlesssteel.com/304l316l-astm-a269-impulse-tubes-with-ba-surface-for-oilfield-service_product659.html

[2] https://www.dsstainlesssteel.com/304-304l-stainless-steel-tubing-coil/

[3] https://www.emilymetal.com/stainless-steel-coil-tube.html

[4] https://widesteel.com/product/astm-a269-316l-ss-coil-tubing/

[5] https://www.yesstainless.com.tw/astm-a269-stainless-steel-pipe

[6] https://www.zheyisp.com/astm-a269-316l-stainless-steel-coil-tube-product/

[7] https://www.steelpipesfactory.com/products/pipes-tubes/stainless-steel-pipes/astm-a269-stainless-steel-tubes-tubing/

[8] https://www.pacstainless.com/products/stainless-steel-tubing/coiled-stainless-steel-tubing/

[9] https://www.mtstainlesssteel.com/astm-a269-seamless-stainless-steel-coiled-tubing-suitable-for-preinsulated-tubing_product214.html

[10] https://docs.rs-online.com/88f7/0900766b800208f7.pdf

[11] https://www.savoypipinginc.com/instrumentation/astm-a269-316l-stainless-steel-instrumentation-tubes-manufacturer-supplier.html

[12] https://www.tjtgsteel.com/astm-825-stainless-steel-coiled-tubing-suppliers.html

[13] https://widesteel.com/product/astm-a269-825-capillary-tube/

[14] https://widesteel.com/product-category/capillary-tubing/

[15] https://www.aalco.co.uk/literature/files/aalco-stainless-steel-tube-product-guide.pdf

[16] https://www.swagelok.com/downloads/webcatalogs/en/ms-01-181.pdf

[17] https://sstubecn.en.made-in-china.com/product/uaIYZVKDHRWp/China-ASTM-A312-ASTM-A213-ASTM-A269-Polish-stainless-Steel-Seamless-Tube.html

[18] https://www.mtstainlesssteel.com/astm-a269-tp316--316l-stainless-steel-welded-multicore-tubing_product187.html