Specification :
Alloy 20 Pipes and Tubes are manufactured in accordance with ASTM B729, ASTM B464, ASTM B468, and ASME SB729 standards for seamless and welded applications.
Specification :
Alloy 20 Pipes and Tubes are manufactured in accordance with ASTM B729, ASTM B464, ASTM B468, and ASME SB729 standards for seamless and welded applications.
Equivalent Grades :
Equivalent grades include UNS N08020, WNR 2.4660, Carpenter 20®, and Alloy 20, recognized for exceptional resistance to sulfuric acid and chemical corrosion.
Material Composition :
Alloy 20 is a nickel-iron-chromium alloy enriched with copper and molybdenum to provide enhanced resistance to acidic and chloride-containing environments.
Available Forms :
Available as seamless pipes, welded pipes, ERW pipes, round tubes, square tubes, rectangular tubes, heat exchanger tubes, and custom-fabricated products.
Alloy 20 Pipes and Tubes are high-performance nickel-based alloy products specifically developed for applications requiring exceptional resistance to corrosive chemicals, acidic media, and chloride-containing environments. Combining nickel, chromium, iron, copper, and molybdenum, Alloy 20 provides superior protection against sulfuric acid attack while maintaining excellent mechanical strength and fabrication characteristics.
Known internationally as UNS N08020 and WNR 2.4660, Alloy 20 is widely used in chemical processing, pharmaceutical manufacturing, food processing, petrochemical facilities, and power generation systems where conventional stainless steels may experience premature corrosion or failure.
Alloy 20 Pipes and Tubes are manufactured in accordance with internationally recognized standards, including:
Products are available in a variety of configurations to support industrial and process requirements:
Alloy 20 is specifically engineered for corrosive process environments where acid resistance is critical.
It provides excellent resistance to:
This makes Alloy 20 one of the most widely selected materials for chemical handling and acid production facilities.
The balanced alloy composition delivers both strength and durability under demanding operating conditions.
Key performance advantages include:
Alloy 20 Seamless Pipes
Alloy 20 Welded Tubes
Every Alloy 20 Pipe and Tube undergoes comprehensive quality control procedures.
Testing includes:
Products are supplied with:
Alloy 20 Pipes and Tubes are widely used in industries where resistance to acids and aggressive chemicals is essential.
Chemical Processing Industry
Pharmaceutical Industry
Food Processing Industry
Energy and Industrial Facilities
Additional Applications
Alloy 20 offers a unique combination of corrosion resistance, mechanical strength, and fabrication flexibility. Its proven performance in sulfuric acid service and aggressive chemical environments makes it one of the most trusted nickel alloys for modern industrial processing systems.
For industries seeking long-term reliability, reduced maintenance, and superior corrosion protection, Alloy 20 Pipes and Tubes remain a preferred engineering solution worldwide.
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN |
|---|---|---|---|---|
| Alloy 20 | 2.4660 | N08020 | Z2NCUD31-20AZ | NiCr20CuMo |
Alloy 20 Pipes and Tubes
Alloy 20 Pipes and Tubes provide exceptional resistance to sulfuric acid, chlorides, and corrosive chemicals, making them ideal for chemical processing, pharmaceutical, and industrial applications.
Alloy 20 Seamless Pipes and Tubes
Alloy 20 Seamless Pipes and Tubes offer superior corrosion resistance, high reliability, and leak-free performance for critical process systems operating in aggressive environments.
UNS N08020 Pipes and Tubes
UNS N08020 Pipes and Tubes are engineered for outstanding resistance to acid attack, stress corrosion cracking, and pitting in demanding chemical and petrochemical applications.
ASTM B729 Alloy 20 Tubing
ASTM B729 Alloy 20 Tubing delivers excellent mechanical strength and corrosion resistance, ensuring dependable performance in chemical processing, food production, and power generation facilities.
Specification :
Alloy 20 Pipes and Tubes are manufactured in accordance with ASTM B729, ASTM B464, ASTM B468, and ASME SB729 standards for seamless and welded applications.
Equivalent Grades :
Equivalent grades include UNS N08020, WNR 2.4660, Carpenter 20®, and Alloy 20, recognized for exceptional resistance to sulfuric acid and chemical corrosion.
Material Composition :
Alloy 20 is a nickel-iron-chromium alloy enriched with copper and molybdenum to provide enhanced resistance to acidic and chloride-containing environments.
Available Forms :
Available as seamless pipes, welded pipes, ERW pipes, round tubes, square tubes, rectangular tubes, heat exchanger tubes, and custom-fabricated products.
Size Range :
Supplied in sizes ranging from ½" NB to 24" NB with multiple schedules, wall thicknesses, and customized lengths to meet project specifications.
Mechanical Properties :
Alloy 20 offers excellent mechanical strength, resistance to stress corrosion cracking, superior toughness, and reliable performance in aggressive process conditions.
Testing and Certification :
Each pipe and tube is supplied with EN 10204 3.1 certification and undergoes PMI, hydrostatic testing, ultrasonic inspection, mechanical testing, and dimensional verification.
Applications :
Widely used in chemical processing, pharmaceutical manufacturing, food processing, petrochemical plants, sulfuric acid handling systems, and heat exchanger applications.
Chemical Composition of Alloy 20 Pipes & Tubes
| Grade | Ni | C | Mn | P | S | Si | Cr | Nb | Mo | Cu |
|---|---|---|---|---|---|---|---|---|---|---|
| Alloy 20 | 32 - 38 | 0.02 max | 1 - 2 | 0.02 max | 0.005 max | 0.7 max | 19 - 21 | 0.1 - 0.3 | 2 - 3 | 3 - 4 |
Mechanical Properties of Alloy 20 Pipes and Tubing
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|---|
| Alloy 20 | 8.1 g/cm3 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 | Psi - 35,000, MPa - 241 | 30 % |
Our Alloy 20 Pipes and Tubes Supplier are used in a wide range of applications and various industries. Below are a few of them:
Application Industries
Aerospace Industry
Food Processing Industry
Pulp & Paper Indusry
Energy Industry
Pharmaceuticals Industry
Power Plant Industry
Chemical Industry
Oil and Gas Industry
Get clear answers to common queries about our steel products, services, and delivery processes.
Alloy 20 combines nickel, chromium, molybdenum, and copper to provide outstanding resistance against acidic and chloride-containing environments, making it highly effective for chemical processing operations.
Yes. Alloy 20 offers excellent corrosion resistance, material stability, and product purity, making it suitable for pharmaceutical process equipment, storage systems, and transfer pipelines.
Their resistance to corrosion, pitting, and chemical attack helps maintain uninterrupted production, reduces equipment degradation, and supports longer operational service life.
Absolutely. Alloy 20 tubes provide reliable thermal performance and corrosion protection, making them ideal for heat exchangers, condensers, and process cooling equipment operating in corrosive environments.
Engineers often select Alloy 20 when applications involve strong acids or highly corrosive process streams because it offers enhanced chemical resistance and greater long-term performance than many conventional stainless steel grades.
Our Location
Flat no 5, Swapna HSG Soc
Ltd., Charkop, Kandivali West,
Mumbai, Maharashtra, India.
400067
