Virami Steel Hub is a leading manufacturer, supplier, stockist, and exporter of Alloy 20 Pipes & Tubes in Mumbai, India. We supply premium-quality Alloy 20 pipes and tubes across India and export globally to the USA, Europe, the Middle East, Canada, Australia, and Southeast Asia.
Alloy 20, also known as Carpenter 20® (UNS N08020), is a nickel-iron-chromium austenitic alloy designed to provide excellent resistance to sulfuric acid and other aggressive chemical environments. Due to its superior corrosion resistance and good mechanical strength, Alloy 20 pipes and tubes are widely used in chemical processing, petrochemical, pharmaceutical, and food industries.
Alloy 20 Pipes & Tubes are hollow cylindrical products manufactured from a nickel-based alloy (UNS N08020). The alloy contains chromium, molybdenum, and copper, which provide exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking.
Alloy 20 was specifically developed to resist sulfuric acid corrosion and performs well in environments containing chlorides, phosphoric acid, and nitric acid.
Key Features of Alloy 20 Pipes & Tubes:
These features make Alloy 20 ideal for aggressive chemical environments.
Alloy 20 conforms to UNS N08020 with the following composition:
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 32 – 38 |
| Chromium (Cr) | 19 – 21 |
| Iron (Fe) | Balance |
| Molybdenum (Mo) | 2 – 3 |
| Copper (Cu) | 3 – 4 |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 1.0 max |
| Carbon (C) | 0.07 max |
| Niobium (Cb) | 8 × C min |
Role of Key Elements:
The balanced composition ensures excellent durability in corrosive media.
Alloy 20 offers reliable mechanical strength:
These properties make it suitable for pressure vessels and piping systems.
Alloy 20 offers reliable mechanical strength:
Alloy 20 provides dependable performance in high-temperature and corrosive conditions.
Alloy 20 is highly resistant to:
Its high nickel and copper content provides exceptional resistance in acidic environments.
Alloy 20 is generally supplied in solution annealed condition.
Solution Annealing Process:
Proper heat treatment enhances mechanical and corrosion properties.
Alloy 20 has moderate machinability.
With proper machining techniques, accurate components can be produced.
Alloy 20 offers good weldability.
Proper welding ensures corrosion-resistant and durable joints.
Alloy 20 pipes and tubes are supplied according to international standards.
Standards:
Size Range:
Forms:
Surface finishes include annealed, pickled, polished, and bright finish.
Alloy 20 pipes and tubes are widely used in:
Chemical Processing Industry
Petrochemical Industry
Pharmaceutical Industry
Food Processing Industry
Power Generation
Its superior resistance to acidic corrosion makes it ideal for chemical applications.
These advantages make Alloy 20 a preferred choice in aggressive chemical environments.
All Alloy 20 pipes and tubes undergo strict quality checks:
Mill Test Certificates (MTC) are provided as per ASTM / ASME standards. Third-party inspection is available upon request.
Alloy 20 Pipes & Tubes are high-performance nickel-based alloy products offering exceptional resistance to sulfuric acid, pitting, and stress corrosion cracking. Widely used in chemical, petrochemical, and pharmaceutical industries, they ensure reliable performance in aggressive environments.
Virami Steel Hub supplies certified Alloy 20 pipes and tubes in various sizes and specifications worldwide, ensuring quality, durability, and long-term performance.
