Alloy 20 Round Bar
| Specification Alloy 20 Round Bar Details | |
|---|---|
| Product Name | Alloy 20 Round Bar |
| Material Grade | Alloy 20 / Carpenter 20 / Alloy 20Cb-3 |
| UNS Designation | UNS N08020 |
| Werkstoff Number | W.Nr. 2.4660 |
| Material Type | Nickel-Iron-Chromium Austenitic Alloy |
| Chemical Composition | Nickel 32–38%, Chromium 19–21%, Molybdenum 2–3%, Copper 3–4%, Iron Balance, Columbium + Tantalum 8 × C–1%, Carbon 0.07% max, Manganese 2% max, Silicon 1% max |
| Manufacturing Type | Hot Rolled / Cold Drawn / Forged / Ground |
| Round Bar Standard | ASTM B473 / ASME SB473 |
| Forging Standard | ASTM B462 / ASME SB462 |
| General Requirements | Applicable ASTM / ASME material requirements |
| Diameter | As per Standard / Customer Requirement |
| Diameter Range | Approximately 3 mm to 500 mm, depending on manufacturing capability |
| Length | Standard 1–6 m / Fixed or Customized Length |
| Tolerance | h7, h8, h9, h10, h11 or as required |
| Surface Finish | Black / Bright / Peeled / Ground / Polished / Machined |
| Heat Treatment | Solution Annealed |
| Condition | Annealed / Cold Drawn / Hot Rolled / Ground |
| MTC | EN 10204 3.1 / 3.2 |
| Testing | Chemical, Mechanical, Dimensional, Visual, Hardness, Ultrasonic and NDT as specified |
| Tensile Strength | Minimum approximately 550 MPa |
| Yield Strength | Minimum approximately 240 MPa |
| Elongation | Minimum approximately 30% |
| Density | Approximately 8.08 g/cm³ |
| Melting Range | Approximately 1380–1400°C |
| Corrosion Resistance | Excellent resistance to general corrosion, pitting and intergranular corrosion |
| Acid Resistance | Excellent resistance to sulfuric acid and other aggressive chemical environments |
| Stabilization | Columbium stabilization minimizes carbide precipitation and improves resistance to intergranular corrosion |
| Welding | Excellent weldability with suitable Alloy 20-compatible filler metals |
| Filler Metal | ER320 / Alloy 20 compatible filler |
| Welding Electrode | E320 |
| Available Form | Round Bar / Rod / Precision Ground Bar |
| Customization | Diameter, Length, Tolerance, Finish, Heat Treatment, Testing and Documentation |
| Origin | European / American / Japanese / Korean and other approved origins |
| Export Supply | Worldwide Export Supply |
| Exporter Support | Technical specification, inspection, certification, export packing and international shipment coordination |
| Applications | Chemical Processing, Sulfuric Acid Processing, Pharmaceutical, Food Processing, Petrochemical, Fertilizer, Pulp & Paper, Heat Exchangers, Tanks, Pumps and Process Equipment |
Alloy 20 Round Bar – Standard Dimensions
| Diameter (mm) | Diameter (in.) | Weight (kg/m) | Weight (lb/ft) |
|---|---|---|---|
| 5 | 0.197 | 0.159 | 0.107 |
| 6 | 0.236 | 0.229 | 0.154 |
| 8 | 0.315 | 0.406 | 0.273 |
| 10 | 0.394 | 0.635 | 0.427 |
| 12 | 0.472 | 0.914 | 0.614 |
| 14 | 0.551 | 1.244 | 0.836 |
| 16 | 0.630 | 1.625 | 1.092 |
| 18 | 0.709 | 2.057 | 1.382 |
| 20 | 0.787 | 2.537 | 1.704 |
| 22 | 0.866 | 3.070 | 2.062 |
| 25 | 0.984 | 3.958 | 2.658 |
| 28 | 1.102 | 4.971 | 3.339 |
| 30 | 1.181 | 5.714 | 3.838 |
| 32 | 1.260 | 6.503 | 4.367 |
| 36 | 1.417 | 8.257 | 5.546 |
| 40 | 1.575 | 10.150 | 6.817 |
| 45 | 1.772 | 12.850 | 8.628 |
| 50 | 1.969 | 15.865 | 10.656 |
| 56 | 2.205 | 19.910 | 13.369 |
| 63 | 2.480 | 25.190 | 16.920 |
| 71 | 2.795 | 31.980 | 21.465 |
| 80 | 3.150 | 40.640 | 27.300 |
| 90 | 3.543 | 51.680 | 34.710 |
| 100 | 3.937 | 63.850 | 42.860 |
| 110 | 4.331 | 77.480 | 52.010 |
| 125 | 4.921 | 99.750 | 66.980 |
| 150 | 5.906 | 143.650 | 96.480 |
| 175 | 6.890 | 195.800 | 131.450 |
| 200 | 7.874 | 255.400 | 171.470 |
Alloy 20 Round Bar – Typical Specifications
| US Bar Size | Diameter (in.) | Diameter (mm) | Approx. Weight (kg/m) |
|---|---|---|---|
| #2 | 0.250 | 6.35 | 0.255 |
| #3 | 0.375 | 9.53 | 0.574 |
| #4 | 0.500 | 12.70 | 1.020 |
| #5 | 0.625 | 15.88 | 1.594 |
| #6 | 0.750 | 19.05 | 2.290 |
| #7 | 0.875 | 22.23 | 3.120 |
| #8 | 1.000 | 25.40 | 4.080 |
| #9 | 1.125 | 28.58 | 5.160 |
| #10 | 1.250 | 31.75 | 6.370 |
| #11 | 1.375 | 34.93 | 7.730 |
| #12 | 1.500 | 38.10 | 9.180 |
| #13 | 1.625 | 41.28 | 10.780 |
| #14 | 1.750 | 44.45 | 12.590 |
| #15 | 1.875 | 47.63 | 14.460 |
| #16 | 2.000 | 50.80 | 16.320 |
| #18 | 2.250 | 57.15 | 20.690 |
| #20 | 2.500 | 63.50 | 25.500 |
Alloy 20 Round Bar – Size & Tolerance Chart
| Diameter Range | Available Finish | Typical Tolerance | Supply Condition |
|---|---|---|---|
| 3–10 mm | Bright / Cold Drawn / Ground | h8 / h9 / h10 / h11 | Solution Annealed |
| 10–25 mm | Bright / Cold Drawn / Polished | h8 / h9 / h10 / h11 | Solution Annealed |
| 25–50 mm | Cold Drawn / Peeled / Ground | h9 / h10 / h11 | Solution Annealed |
| 50–75 mm | Peeled / Ground / Polished | h10 / h11 | Solution Annealed |
| 75–100 mm | Peeled / Machined / Ground | h11 | Solution Annealed |
| 100–150 mm | Hot Rolled / Peeled / Machined | h11 / Customer Requirement | Solution Annealed |
| 150–250 mm | Hot Rolled / Forged / Machined | Customer Requirement | Solution Annealed |
| 250–350 mm | Forged / Rough Machined | Customer Requirement | Solution Annealed |
| 350–500 mm | Forged / Custom Machined | Customer Requirement | Solution Annealed |
Why Should You Buy Alloy 20 Round Bars from Metalx Nickel & Alloys?
- Experienced Alloy 20 Round Bar Supplier & Exporter serving international buyers, distributors, EPC contractors, stockholders and industrial end users.
- 20+ Years of Nickel Alloy Industry Experience in supplying corrosion-resistant and high-performance alloy products to customers across the UAE, Saudi Arabia, Africa and other global markets.
- Specialized Alloy 20 Exporter offering Alloy 20 / Carpenter 20 / UNS N08020 / W.Nr. 2.4660 Round Bars for demanding chemical and industrial applications.
- Global Sourcing Network with access to reputed alloy mills, manufacturers and approved stockholders across Europe, USA, Japan and other major supply markets.
- Wide Specialty Alloy Product Range including Alloy 20, Hastelloy, Inconel, Incoloy, Monel, Duplex, Super Duplex and other specialized alloys.
- Ready Stock Availability for selected Alloy 20 Round Bar sizes, subject to current stock and availability.
- Custom Alloy 20 Round Bar Supply according to customer drawings, diameter, length, surface finish, heat treatment and project specifications.
- Cut-to-Length Service available for applicable sizes and customer requirements.
- ASTM / ASME Specification Supply according to applicable requirements, including ASTM B473 / ASME SB473, where applicable.
- MTC with Quotation – Material Test Certificates and relevant technical documentation can be provided with export quotations and orders.
- EN 10204 3.1 / 3.2 Certification available according to the purchase order, project specification and inspection requirements.
- Third-Party Inspection Support can be coordinated through approved inspection agencies for international export orders.
- Chemical, Mechanical & Dimensional Testing can be arranged according to applicable ASTM/ASME standards and customer specifications.
- Hardness & Visual Inspection can be arranged where required by the applicable specification or purchase order.
- Heat Treatment Support – Solution-annealed material can be supplied according to applicable material requirements.
- Surface Finish Support – Bright, polished, pickled, ground, peeled and other specified finishes can be supplied.
- Export-Ready Packing designed to protect Alloy 20 Round Bars during handling, storage and international transportation.
- Worldwide Alloy 20 Round Bar Exporter serving buyers across the Middle East, Africa, Asia, Europe and other international markets.
- Competitive Export Pricing for bulk quantities, project orders, distributors, importers, traders and international stockholders.
- Alloy 20 Round Bar Export Support for EPC contractors, chemical plants, sulfuric acid-processing facilities, pharmaceutical companies, food-processing industries, tank manufacturers and specialized engineering buyers.
- Technical Support from Export Enquiry to Shipment covering grade, diameter, length, surface finish, heat treatment, testing, certification and packing requirements.
- Material Traceability with appropriate identification, certification and quality documentation for export projects.
- Data Sheets & Technical Documentation can be supplied according to customer requirements and project specifications.
- Global Logistics Coordination for Alloy 20 Round Bar shipments to the UAE, Saudi Arabia, Qatar, Oman, Africa, Singapore, Europe and other destinations.
Key Features of Alloy 20 Round Bar
- Excellent Sulfuric Acid Resistance – Alloy 20 is particularly valued for its resistance to sulfuric acid and related chemical environments.
- Excellent Corrosion Resistance – Provides strong resistance to a broad range of aggressive chemical media.
- Nickel-Iron-Chromium Alloy – Combines nickel, chromium, iron and molybdenum for enhanced corrosion resistance.
- Molybdenum Alloyed – Molybdenum contributes to improved resistance to pitting and localized corrosion.
- Copper Addition – Copper contributes to improved resistance in sulfuric acid environments.
- Good Pitting Resistance – Provides useful resistance to localized pitting corrosion.
- Good Crevice Corrosion Resistance – Suitable for selected environments where crevice corrosion is a concern.
- Good Stress Corrosion Cracking Resistance – Offers useful resistance to stress corrosion cracking under suitable conditions.
- Excellent Acid Resistance – Suitable for selected sulfuric, phosphoric and other acidic process environments.
- Good Fabrication Characteristics – Can be machined and fabricated using appropriate industrial procedures.
- Hot Rolled & Cold Drawn Options – Round bars can be supplied in different manufacturing conditions according to requirements.
- Forged Options Available – Forged round bars can be supplied for selected dimensions and applications.
- Wide Diameter Availability – Available in different diameters for machining, fabrication and component manufacturing.
- Multiple Surface Finishes – Bright, polished, pickled, ground, peeled and other specified finishes can be supplied.
- Solution Annealed Condition – Material can be supplied in solution-annealed condition according to applicable requirements.
- Chemical Processing Applications – Suitable for chemical processing equipment exposed to aggressive chemical media.
- Sulfuric Acid Equipment Applications – Used for tanks, piping components, heat exchangers and other equipment handling sulfuric acid.
- Pharmaceutical Applications – Can be considered for selected pharmaceutical processing equipment.
- Food Processing Applications – Suitable for selected food-processing applications where the material specification is appropriate.
- Industrial Equipment Applications – Useful for specialized industrial components requiring strong corrosion resistance.
- Tank & Vessel Applications – Can be used for selected storage tanks, vessels and process equipment.
- Reliable Material Traceability – Material certificates and inspection documentation can be supplied according to order requirements.
- Quality Testing Available – Chemical, mechanical, dimensional, hardness, visual and other specified inspections can be arranged.
- Export-Ready Material – Round bars can be suitably packed for handling, storage and international transportation.
- Global Alloy 20 Round Bar Exporter – METALX NICKEL & ALLOYS supplies Alloy 20 Round Bars to international buyers, distributors, traders, stockholders and industrial end users.
| Specification | Alloy 20 Round Bar Details |
|---|---|
| Product Name | Alloy 20 Round Bar |
| Material Grade | Alloy 20 / Carpenter 20 |
| UNS Designation | N08020 |
| Werkstoff Number | 2.4660 |
| Material Type | Nickel-Iron-Chromium Alloy |
| Manufacturing | Hot Rolled / Cold Drawn / Forged, as required |
| Applicable Standards | ASTM / ASME specifications as applicable |
| Common Standard | ASTM B473 / ASME SB473, where applicable |
| Bar Type | Round Bar |
| Diameter | As per customer requirement and applicable standard |
| Length | Standard, random and customized lengths |
| Surface Finish | Bright, polished, pickled, ground, peeled or as required |
| Heat Treatment | Solution annealed / As specified |
| End Condition | Plain cut, chamfered or as specified |
| Chemical Composition | Nickel, Chromium, Iron, Molybdenum, Copper and other controlled alloying elements |
| Mechanical Properties | Tensile strength, yield strength, elongation and hardness according to applicable specification |
| Corrosion Resistance | Excellent resistance to sulfuric acid and various aggressive chemical environments |
| Pitting & Crevice Resistance | Good resistance to localized corrosion |
| Stress Corrosion Resistance | Good resistance to stress corrosion cracking |
| Testing | Chemical, mechanical, dimensional, hardness, visual and other specified tests |
| Applications | Chemical processing, sulfuric acid equipment, pharmaceutical, food processing, tanks, piping components and industrial equipment |
| Customization | Diameter, length, surface finish, heat treatment, testing and documentation as required |
| Packing | Export-worthy packing suitable for safe international transportation |
| Export Supply | Available for international buyers, distributors, EPC contractors and industrial end users |
1. What is Alloy 20 Round Bar?
Alloy 20 Round Bar is a nickel-iron-chromium alloy developed for strong resistance to sulfuric acid and other aggressive chemical environments.
2. What is the UNS designation of Alloy 20?
The UNS designation of Alloy 20 is N08020.
3. What is the Werkstoff Number of Alloy 20?
The commonly associated Werkstoff Number is 2.4660.
4. What is another name for Alloy 20?
Alloy 20 is also commonly known as Carpenter 20.
5. What is the common standard for Alloy 20 Round Bar?
A commonly applicable specification is ASTM B473 / ASME SB473, subject to the exact product requirements.
6. Is Alloy 20 resistant to sulfuric acid?
Yes. Alloy 20 is particularly valued for its excellent resistance to sulfuric acid, although actual performance depends on concentration, temperature and operating conditions.