The Alloy 20 UNS N08020 Round Bars are high-grade austenitic stainless steel bars that are produced for high resistance to corrosion and wear and tear when higher resistance is needed. These alloy steels have a mix of nickel, chromium, molybdenum, copper and niobium in perfect proportions, and are highly resistant to corrosion because of sulfuric acid, pitting, crevice and chloride corrosion. They are ASTM B473 round bars with a minimum tensile strength of 551 MPA, and a minimum yield strength of 241 MPA. They are used extensively in various chemical, petrochemical, pharmaceutical, food processing and power generation applications. USA Piping Solution is a trusted UNS N08020 Round Bar manufacturer, supplier and exporter providing best quality products competitively available in the world.
Specifications of Alloy 20 UNS N08020 Round Bar
| Specification Parameter | Technical Details & Standard Requirements |
|---|---|
| Material / Grade | Alloy 20 / Inco 20 (UNS N08020) |
| Standard Specifications | ASTM B473 / ASME SB473 |
| Product Forms | Round, Square, Hex (A/F), Bush, Rectangle, Flat, Billet, Ingot, Forging, PSQ Bar, Wire Rod, Wire (Coil Form), Wire-mesh, etc. |
| Size Range | 15NB to 150NB |
| Diameter (Thread Size) | Metric: M6 to M48 | Inches: 1/4" to 2" |
| Length | 100 mm to 3000 mm Long & Above |
| Manufacturing Process | Cold Drawn / Extruded |
| Dimensional Tolerances | h8, h9, h10, h11, h12, h13, k9, k10, k11, k12 (or as per client requirements) |
| Condition | Cold Drawn Polished, Cold Drawn Centreless Ground & Polished, Threading |
| Finish Options | Cold Drawn, Shot Blast & Drawn, 240 Grit Belt Polished, Black, Bright Polished, Rough Turned, No. 4 Finish, Matt Finish, BA Finish, High Polished |
| Surface Treatments | Hot Rolled Pickled, Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline |
Applications and Industrial Usage of Alloy 20 UNS N08020 Round Bar
- Sulfuric Acid Production & Storage Equipment
- Chemical Processing Plants
- Pharmaceutical Manufacturing Equipment
- Petrochemical Processing Industry
- Food & Beverage Processing Equipment
- Pulp & Paper Bleaching Plants
- Synthetic Fiber & Plastic Manufacturing Plants
- Power Generation Flue Gas Desulfurization (FGD) Systems
Frequently Asked Questions
What is Alloy 20 UNS N08020 Round Bar used for?
Alloy 20 UNS N08020 Round Bar is used to manufacture pumps, valves, heat exchangers, fasteners, tanks, and process equipment for chemical, pharmaceutical, petrochemical, and food processing industries.
Is Alloy 20 Round Bar resistant to sulfuric acid?
Yes. Alloy 20 Round Bar offers excellent resistance to sulfuric acid over a wide range of concentrations, making it one of the preferred materials for acid processing applications.
What is the difference between Alloy 20 and Stainless Steel 316L?
Alloy 20 provides better resistance to sulfuric acid, chlorides, and stress corrosion cracking than Stainless Steel 316L, making it more suitable for highly corrosive chemical environments.
What is the difference between Alloy 20 and Hastelloy C276?
Hastelloy C276 offers superior resistance to a wider range of aggressive chemicals, while Alloy 20 is a more cost-effective choice for applications involving sulfuric acid and moderate corrosive environments.
Can Alloy 20 Round Bar be used in hydrochloric acid?
Alloy 20 provides limited resistance to hydrochloric acid and is generally recommended only for low concentrations and controlled conditions. For highly concentrated hydrochloric acid, alloys such as Hastelloy C276 are typically preferred.