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The world today is shifting towards more chemical and industrial developments, and this has given rise to an increase in harsher environments that challenge materials’ effectiveness. These environments require specialized piping solutions that can withstand corrosive conditions that are harmful to standard materials. This is where Alloy 20 Seamless Pipe comes in as a versatile solution. It is a nickel-iron-chromium alloy with excellent resistance to high-temperature and aggressive chemicals, providing long-term performance under harsh industrial conditions. We will explore the key features that make Alloy 20 Seamless Pipes the best solution for corrosive environments.
Exceptional resistance to acidic environments: Alloy 20 seamless pipe has been widely recognized for its high resistance to acidic environments, making it suitable for use in industrial applications such as sulfuric acid processing, manufacturing of organic and inorganic chemicals, and pharmaceuticals, amongst others. The chromium and nickel content of Alloy 20 guarantees excellent resistance to corrosion by sulfuric acid, phosphoric acid, nitric acid, sulfur dioxide, and chloride environments. The resulting corrosion resistance properties of Alloy 20 seamless pipe result in reduced maintenance, increased longevity, and lower life-cycle cost, making it an excellent investment for harsh environments applications.
Outstanding mechanical properties: Alloy 20 seamless pipe is a versatile and high-strength alloy. It exhibits superior mechanical properties, including high tensile strength, excellent corrosion resistance, and good ductility, making it the material of choice in demanding applications that require mechanical strength. The excellent mechanical properties allow Alloy 20 seamless pipe to maintain the integrity of structures over time and withstand aggressive stresses that degrade the performance of other materials.
Versatility in various applications: One of the key benefits of Alloy 20 seamless pipe is its versatility in various applications. It has been found useful in different industries essential to the well-being and growth of society. Industries such as chemical processing, food production, and petrochemical refining rely on Alloy 20 seamless pipes for high-temperature applications that require excellent resistance to chlorides, acids and alkalis. In automotive applications, Alloy 20 seamless pipes endure high-pressure conditions, high-temperature dry and wet environments, and acidic fluid conveying. In construction, Alloy 20 is used in the building of heat exchangers, boilers, and pressure vessels that require high strength and excellent corrosion resistance.
Easy to weld, fabricate, and shape: Alloy 20 seamless pipe has excellent welding, fabrication and shaping capabilities, making it a versatile material for complex joining processes or fabrication projects. Its unique properties allow it to be easily welded using traditional welding methods, such as shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW), and gas metal arc welding (GMAW) Additionally, Alloy 20 seamless pipe can be machined or threaded for easy installation, making it ideal for applications with intricate or difficult-to-reach spaces.
Cost-effective option: Investing in Alloy 20 seamless pipe may come with a higher upfront cost than traditional materials. However, its superior corrosion resistance properties lead to significantly extended service life, reduced maintenance costs, and minimizes unscheduled downtime, making it a cost-effective choice for demanding applications. It has been established that Alloy 20 seamless pipes have lower life-cycle costs compared to traditional materials, especially in applications where corrosion cannot be tolerated.
Table of Content
Alloy 20 seamless pipes are pipes made from Alloy 20 alloy, manufactured using a seamless process. These pipes have excellent corrosion resistance, high-temperature resistance & good mechanical properties.
The advantages of Alloy 20 seamless pipes include high resistance to corrosion in various environments, high-temperature resistance, excellent strength & toughness & good weldability.
Alloy 20 seamless pipes are used in various applications, such as chemical processing, food and pharmaceutical industries & other applications that require high resistance to corrosion & good mechanical properties.
| Specification | ASTM B729 / ASME SB729 |
| Size | 5.0 mm – 1219.2 mm |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Thickness Range | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes |
| Length | Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded |
| End Protection | Plastic Caps |
| Surface Finish | 2B, No.4, No.1, No.8 Mirror Finish for Alloy Seamless Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Schedule | SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
| Pipe End | Plain End, Beveled End, Treaded. |
| UNS Designation & International Equialent for Alloy 20 Seamless Pipes | |||||||||
| Type | UNS | WNR. | JIS | EN/DIN | EN/BS | EN/NF | ISO | GB | GOST |
| Alloy 20 | N08020 | 2.4660 | – | NiCr20CuMo | – | – | – | – | – |
| Grade | C | Mn | Si | P | S | Cr | Ni |
| Alloy 20 | 0.02 max | 1 – 2 | 0.7 max | 0.02 max | 0.02 max | 19 – 21 | 32 – 38 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Alloy 20 | 8.1 g/cm3 | 1443 °C (2430 °F) | Psi – 80000 , MPa – 551 | Psi – 35000 , MPa – 241 | 30 % |
Check ASME B36.19 Alloy 20 Seamless Pipe, B729 Alloy 20 Sch 40 Seamless Pipe dimensions and thickness chart, SB 729 Alloy 20 Seamless Pipe and 20 Alloy DIN 2.4660 Square Seamless Pipe price per meter in India
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