Alloy 20 Round Bar Supplier Mumbai for Corrosion-Resistant Industrial Applications
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Meta Description: Alloy 20 Round Bar Supplier Mumbai offering UNS N08020 ASTM B473 bars for chemical processing, acid service, pharmaceutical equipment and industrial applications.
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Table of Contents
- What Is Alloy 20 Round Bar?
- Why Alloy 20 Is Used in Corrosive Service
- Alloy 20 UNS N08020 and ASTM B473
- Alloy 20 Chemical Composition
- Alloy 20 Round Bar Properties
- Alloy 20 Round Bar Applications
- Alloy 20 Round Bar Sizes and Forms
- What Affects Alloy 20 Round Bar Price?
- How to Select Alloy 20 Round Bar for an Industrial Requirement
- Alloy 20 Round Bar Supplier in Mumbai
- Frequently Asked Questions
- Request a Quote
What Is Alloy 20 Round Bar?
Alloy 20 Round Bar is a nickel-iron-chromium alloy developed for demanding corrosive environments. It contains significant amounts of nickel, chromium, molybdenum and copper, giving it useful resistance to a range of aggressive chemical conditions.
The material is identified by UNS N08020 and is covered for bar and wire by ASTM B473. The current ASTM B473 specification covers UNS N08020 along with UNS N08024 and UNS N08026, including requirements for chemical composition and mechanical properties.
For industrial buyers, Alloy 20 is particularly relevant when the application involves sulphuric acid, chemical processing or other corrosive process environments.
Nickel Institute data identifies Alloy 20 as UNS N08020 and highlights its useful corrosion resistance in sulphuric acid service.
Why Alloy 20 Is Used in Corrosive Service
Material selection becomes important when ordinary steels or standard stainless steels cannot provide the required corrosion performance.
Alloy 20 combines several alloying elements that contribute to its corrosion resistance. Its nickel and chromium contents are supported by additions of molybdenum and copper.
The Nickel Institute lists Alloy 20 with approximately 33% nickel, 20% chromium, 2.1% molybdenum and 3.2% copper in its alloy comparison data.
One of its best-known applications is sulphuric acid service. Nickel Institute technical material includes Alloy 20 among specialty alloys used for sulphuric-acid applications.
This makes Alloy 20 Round Bar relevant for components where corrosion resistance is a primary purchasing requirement rather than simply selecting a general-purpose engineering steel.
Alloy 20 UNS N08020 and ASTM B473
When purchasing the material, buyers should distinguish between a general commercial description and the actual material specification.
A typical procurement requirement may read:
Alloy: Alloy 20
UNS: N08020
Product: Round Bar
Standard: ASTM B473
Condition: As specified by purchase requirement
Dimensions: As required by application
ASTM B473 specifies Alloy 20 and related nickel alloys in bar and wire products and provides requirements for chemical composition and applicable mechanical properties. It also identifies stabilized-annealed, solution-annealed and annealed conditions within the specification.
For critical projects, the purchaser should always confirm the applicable edition of the standard and the exact material condition required.
View ASTM B473 requirements for Alloy 20
Alloy 20 Chemical Composition
The chemistry of Alloy 20 is important because its corrosion-resistant behavior depends on the combined effect of several alloying elements.
A commonly specified ASTM B473 Alloy 20 composition includes approximately:
| Element | Typical / Specified Range |
|---|---|
| Nickel (Ni) | 32–38% |
| Chromium (Cr) | 19–21% |
| Molybdenum (Mo) | 2–3% |
| Copper (Cu) | 3–4% |
| Iron (Fe) | Balance |
| Manganese (Mn) | 2% max |
| Silicon (Si) | 1% max |
Exact limits should always be checked against the applicable ASTM B473 edition and the material test certificate supplied with the heat.
The combination of nickel, chromium, molybdenum and copper is one reason Alloy 20 is selected for aggressive chemical environments.
Alloy 20 Round Bar Properties
Alloy 20 is selected primarily for its corrosion performance, but its mechanical properties are also important when it is being machined into shafts, pins, fasteners, fittings or other engineered components.
ASTM B473 includes mechanical-property requirements for the covered bar materials. For Alloy 20, commonly published minimum values include approximately:
| Property | ASTM B473 Typical Published Minimum |
|---|---|
| Tensile Strength | 551 MPa |
| Yield Strength, 0.2% Offset | 241 MPa |
| Elongation | 30% |
These values should be treated as specification-based reference values rather than universal design values because actual properties depend on product condition, size and applicable requirements.
For engineering procurement, the mill test certificate and specified delivery condition should take precedence over generic online property tables.
Alloy 20 Round Bar Applications
Alloy 20 Round Bar is commonly considered for components used in industries where corrosion resistance is critical.
Chemical Processing
Chemical plants may require corrosion-resistant bars for machined components, equipment parts, fasteners and other fabricated or machined items.
Sulphuric Acid Equipment
Alloy 20 has a long association with sulphuric-acid service. This is one of the main reasons buyers search specifically for UNS N08020 Round Bar rather than a generic stainless steel bar.
Pharmaceutical Equipment
Where aggressive process chemicals and cleanliness requirements are involved, specialty corrosion-resistant alloys can be considered for selected equipment components.
Food and Process Industries
Depending on the exact chemical environment and project specification, Alloy 20 can be selected for process equipment exposed to corrosive media.
Pickling and Chemical Equipment
Alloy 20 is also used in equipment associated with chemical treatment and corrosive processing environments. Published technical information on the alloy includes applications such as pickling equipment, mixing tanks and heat exchangers.
Alloy 20 Round Bar Sizes and Forms
Industrial buyers may require Alloy 20 in different dimensions depending on whether the bar is being machined, forged or used as feedstock.
Common purchasing details include:
- Round bar diameter
- Cut length
- Standard bar length
- Hot-finished or cold-finished condition
- Bright or ground finish
- Required dimensional tolerance
- Heat-treatment condition
- Quantity
Manan Steel & Metals lists Alloy 20 Round Bar within its specialty round-bar range and provides the product in various sizes and forms according to its published product information.
For an industrial order, the diameter alone is not enough. The material specification, condition, finish and test-document requirements should also be mentioned.
What Affects Alloy 20 Round Bar Price?
The Alloy 20 Round Bar price can change significantly depending on the exact requirement.
Important pricing factors include:
Material grade:
UNS N08020 material is a specialty nickel alloy, so alloy chemistry has a major effect on cost.
Diameter and length:
Larger bars generally contain more material and may require additional processing.
Condition:
Annealed, stabilized-annealed or solution-annealed material requirements can affect processing and documentation.
Surface finish:
Bright, turned, polished or ground surfaces may involve different manufacturing stages.
Testing and certification:
Material test certificates, chemical analysis, mechanical testing and additional inspection requirements can affect the quotation.
Quantity:
The required quantity and whether the material is available from stock can influence the commercial offer.
Therefore, an accurate Alloy 20 Round Bar price in Mumbai should be requested against an actual specification rather than relying on a generic per-kg internet price.
How to Select Alloy 20 Round Bar for an Industrial Requirement
Before sending an enquiry, prepare the following information:
Material: Alloy 20 / UNS N08020
Standard: ASTM B473, where applicable
Diameter: Required round-bar diameter
Length: Standard or cut-to-length requirement
Condition: Required annealed or stabilized condition
Finish: Bright, turned, ground or as specified
Quantity: Number of pieces or total weight
Documentation: MTC, inspection report or other project-specific documentation
Application: Chemical processing, acid service, machining component, equipment fabrication or another end use
The application is particularly useful when the buyer is uncertain about the exact material condition or product specification.
Alloy 20 Round Bar Supplier in Mumbai
For companies searching for an Alloy 20 Round Bar Supplier Mumbai, Manan Steel & Metals supplies specialty metal products from Mumbai for industrial requirements.
Alloy 20 is part of the company’s published specialty round-bar range, alongside materials such as Invar 36, Monel, Inconel, Titanium, Hastelloy and other engineering alloys.
You can also view the Alloy 20 Round Bar product page when preparing your requirement.
For faster quotation, send the supplier your UNS grade, ASTM requirement, diameter, length, quantity and application.
This is particularly important for Alloy 20 because buyers may require different conditions and documentation depending on the project.
Frequently Asked Questions
What is the UNS number of Alloy 20?
The UNS designation for Alloy 20 is N08020. ASTM B473 specifically covers UNS N08020 bar and wire along with UNS N08024 and UNS N08026.
What standard is used for Alloy 20 Round Bar?
ASTM B473 is the relevant ASTM specification for UNS N08020 nickel-alloy bar and wire.
Is Alloy 20 suitable for sulphuric acid service?
Alloy 20 is specifically recognized for useful corrosion resistance in sulphuric-acid environments, which is one of its major industrial applications. The actual suitability must still be checked against concentration, temperature, contaminants and process conditions.
What information is needed to buy Alloy 20 Round Bar?
A quotation request should ideally mention UNS N08020, ASTM B473, diameter, length, quantity, required condition, finish and documentation requirements.
Where is Alloy 20 Round Bar used?
Typical applications include chemical-processing equipment, sulphuric-acid service, pickling equipment, process components and selected pharmaceutical or industrial applications.
How do I get an Alloy 20 Round Bar quotation in Mumbai?
Send your required diameter, length, quantity, standard and material condition to Manan Steel & Metals for a quotation based on your specification.
Request a Quote for Alloy 20 Round Bar
Manan Steel & Metals
Shop No. 2, Hira Building, 97 Khetwadi Main Road (Nanubhai Desai Road), Girgaon, Mumbai – 400004, Maharashtra, India
Phone: 7977369869
Email: manansteel@gmail.com
Website: www.manansteel.com
For an industrial enquiry, mention Alloy 20 / UNS N08020 / ASTM B473 along with the required diameter, length and quantity.
This helps ensure that the quotation is prepared against the correct material specification instead of a generic Alloy 20 requirement.