Alloy 20 Socket Weld Union
| Specification | Details |
|---|---|
| Product Name | Alloy 20 Socket Weld Union |
| Material Grade | Alloy 20 / Carpenter 20 |
| UNS Designation | UNS N08020 |
| Werkstoff Number | W.Nr. 2.4660 |
| Material Type | Nickel-Iron-Chromium Alloy with Molybdenum and Copper |
| Chemical Composition | Nickel approximately 32–38%, Chromium approximately 19–21%, Molybdenum approximately 2–3%, Copper approximately 3–4%, Iron Balance, with controlled carbon, manganese, silicon and niobium |
| Fitting Type | Socket Weld Union |
| Union Type | Full Union / Reducing Union |
| Manufacturing Type | Forged / Hot Forged / Precision Machined |
| Fitting Standard | ASTM B462 / ASME SB462, as applicable |
| Dimensional Standard | ASME B16.11 |
| Size | 1/8″ to 4″ NPS or As per Customer Requirement |
| Pressure Class | Class 3000 / 6000 / 9000, as applicable |
| Connection Type | Socket Weld |
| End Connection | Socket Weld |
| Surface Finish | Bright / Pickled / Machined / Polished / As Specified |
| Heat Treatment | Solution Annealed / As per Applicable Material Specification |
| Dimensions | As per ASME B16.11 and Customer Requirements |
| MTC | EN 10204 3.1 / 3.2 |
| Testing | Chemical / Mechanical / Dimensional / Hardness / Visual / PMI and Other Tests as Required |
| Tensile Strength | As per Applicable Alloy 20 Material Specification and Condition |
| Yield Strength | As per Applicable Alloy 20 Material Specification and Condition |
| Elongation | As per Applicable Material Standard |
| Density | Approximately 8.08 g/cm³ |
| Melting Range | Approximately 1440–1460°C |
| Corrosion Resistance | Excellent resistance to general corrosion and aggressive chemical environments |
| Pitting Resistance | Good resistance to pitting and localized corrosion due to molybdenum content |
| Crevice Corrosion Resistance | Good resistance to crevice corrosion under suitable service conditions |
| Acid Resistance | Excellent resistance to sulfuric acid and good resistance to selected phosphoric and other acids |
| Chloride Resistance | Good resistance to chloride-containing environments |
| Stress-Corrosion Resistance | Excellent resistance to chloride-induced stress-corrosion cracking under suitable conditions |
| Intergranular Corrosion Resistance | Good resistance when supplied and processed according to applicable requirements |
| Welding | Suitable for socket-welded piping systems using appropriate welding procedures |
| Fabrication | Suitable for machining and specialized fabrication using appropriate procedures |
| Dimensional Accuracy | Precision dimensions according to ASME B16.11 and applicable requirements |
| Available Forms | Full Socket Weld Union / Reducing Socket Weld Union / Forged Socket Weld Union |
| Customization | Size, Union Type, Bore Dimensions, Pressure Class, Finish, Testing and Documentation |
| Inspection | Dimensional, Visual and Material Inspection as Required |
| Marking | Size, Grade, Standard, Class and Heat/Batch Identification as Applicable |
| Origin | European / American / Japanese / Korean and Other Approved Origins |
| Export Supply | Worldwide Alloy 20 Socket Weld Union Export Supply |
| Exporter Support | Technical Specifications, Inspection, Certification, Export Packing, Documentation and International Shipment Coordination |
| Applications | Chemical Processing, Sulfuric Acid Handling, Phosphoric Acid Processing, Pharmaceutical, Food Processing, Petrochemical, Marine, Heat Exchangers and Corrosive Process Piping |
1. Most Common Types of Alloy 20 Socket Weld Unions
| Type | Details |
|---|---|
| Alloy 20 Full Socket Weld Union | Used to connect two pipes of the same nominal size while allowing convenient disconnection for maintenance. |
| Alloy 20 Reducing Socket Weld Union | Used where the connected pipe sizes are different and a compact union connection is required. |
| Alloy 20 Forged Socket Weld Union | Forged construction provides good mechanical strength, durability and consistent fitting geometry. |
| Alloy 20 Precision Machined Union | Precision machining provides accurate socket dimensions and proper pipe fit-up. |
| Alloy 20 Class 3000 Socket Weld Union | Suitable for piping systems requiring Class 3000 pressure-rated fittings. |
| Alloy 20 Class 6000 Socket Weld Union | Designed for higher-pressure industrial piping applications requiring Class 6000 fittings. |
| Alloy 20 Class 9000 Socket Weld Union | Suitable for specialized high-pressure piping systems requiring Class 9000 fittings. |
| Customized Alloy 20 Socket Weld Union | Available according to customer drawings, dimensions, pressure class, finish, testing and documentation requirements. |
2. Alloy 20 Socket Weld Union – Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Alloy 20 Socket Weld Union |
| Material Grade | Alloy 20 / Carpenter 20 |
| UNS Designation | UNS N08020 |
| Werkstoff Number | W.Nr. 2.4660 |
| Material Type | Nickel-Iron-Chromium Alloy with Molybdenum and Copper |
| Chemical Composition | Nickel approximately 32–38%, Chromium approximately 19–21%, Molybdenum approximately 2–3%, Copper approximately 3–4%, Iron Balance, with controlled carbon, manganese, silicon and niobium |
| Fitting Type | Socket Weld Union |
| Union Type | Full Union / Reducing Union |
| Manufacturing Type | Forged / Hot Forged / Precision Machined |
| Fitting Standard | ASTM B462 / ASME SB462, as applicable |
| Dimensional Standard | ASME B16.11 |
| Size | 1/8″ to 4″ NPS or As per Customer Requirement |
| Pressure Class | Class 3000 / 6000 / 9000, as applicable |
| Connection Type | Socket Weld |
| End Connection | Socket Weld |
| Surface Finish | Bright / Pickled / Machined / Polished / As Specified |
| Heat Treatment | Solution Annealed / As per Applicable Material Specification |
| Dimensions | As per ASME B16.11 and Customer Requirements |
| MTC | EN 10204 3.1 / 3.2 |
| Testing | Chemical / Mechanical / Dimensional / Hardness / Visual / PMI and Other Tests as Required |
| Tensile Strength | As per Applicable Alloy 20 Material Specification and Condition |
| Yield Strength | As per Applicable Alloy 20 Material Specification and Condition |
| Elongation | As per Applicable Material Standard |
| Density | Approximately 8.08 g/cm³ |
| Melting Range | Approximately 1440–1460°C |
| Corrosion Resistance | Excellent resistance to general corrosion and aggressive chemical environments |
| Pitting Resistance | Good resistance to pitting and localized corrosion |
| Crevice Corrosion Resistance | Good resistance to crevice corrosion under suitable service conditions |
| Acid Resistance | Excellent resistance to sulfuric acid and good resistance to selected phosphoric and other acids |
| Chloride Resistance | Good resistance to chloride-containing environments |
| Stress-Corrosion Resistance | Excellent resistance to chloride-induced stress-corrosion cracking under suitable conditions |
| Intergranular Corrosion Resistance | Good resistance when supplied and processed according to applicable requirements |
| Welding | Suitable for socket-welded piping systems using appropriate welding procedures |
| Fabrication | Suitable for machining and specialized fabrication using appropriate procedures |
| Dimensional Accuracy | Precision dimensions according to ASME B16.11 and applicable requirements |
| Available Forms | Full Socket Weld Union / Reducing Socket Weld Union / Forged Socket Weld Union |
| Customization | Size, Union Type, Bore Dimensions, Pressure Class, Finish, Testing and Documentation |
| Inspection | Dimensional, Visual and Material Inspection as Required |
| Marking | Size, Grade, Standard, Class and Heat/Batch Identification as Applicable |
| Origin | European / American / Japanese / Korean and Other Approved Origins |
| Export Supply | Worldwide Alloy 20 Socket Weld Union Export Supply |
| Exporter Support | Technical Specifications, Inspection, Certification, Export Packing, Documentation and International Shipment Coordination |
| Applications | Chemical Processing, Sulfuric Acid Handling, Phosphoric Acid Processing, Pharmaceutical, Food Processing, Petrochemical, Marine, Heat Exchangers and Corrosive Process Piping |
3. Alloy 20 Socket Weld Union – Supply & Quality Details
| Parameter | Details |
|---|---|
| Material Identification | Alloy 20 / Carpenter 20 / UNS N08020 / W.Nr. 2.4660 |
| Union Configuration | Full Union / Reducing Union |
| Size Range | 1/8″ to 4″ NPS or As per Requirement |
| Pressure Classes | Class 3000 / 6000 / 9000 |
| Manufacturing | Forged / Hot Forged / Precision Machined |
| Connection | Socket Weld |
| Applicable Standards | ASME B16.11 / ASTM B462 / ASME SB462, as applicable |
| Surface Finish | Bright / Pickled / Machined / Polished / As Specified |
| Heat Treatment | Solution Annealed / As Required |
| Testing | Chemical / Mechanical / Dimensional / Visual / Hardness / PMI / Other Tests |
| Inspection | Dimensional, Visual and Material Inspection |
| Certification | EN 10204 3.1 / 3.2 |
| Marking | Size, Grade, Standard, Class and Heat/Batch Identification |
| Material Traceability | Heat Number and Batch Identification as Applicable |
| Customization | Size, Union Type, Bore Dimensions, Pressure Class, Finish, Testing and Documentation |
| Packaging | Export-Worthy Wooden Cases, Boxes, Pallets or Customized Packaging |
| Documentation | MTC, Inspection Reports, Test Certificates and Other Documents as Required |
| Export Supply | Worldwide Alloy 20 Socket Weld Union Supply |
| Applications | Chemical Processing, Sulfuric Acid Handling, Phosphoric Acid Processing, Pharmaceutical, Food Processing, Petrochemical, Marine and Corrosive Process Piping |
Most Common Types Of Alloy 20 Socket Weld Union
| Type | Details |
|---|---|
| Alloy 20 Full Socket Weld Union | Used to connect two pipes of the same nominal size while allowing convenient disconnection for maintenance. |
| Alloy 20 Reducing Socket Weld Union | Used to connect pipes of different nominal sizes where a compact and detachable socket weld connection is required. |
| Alloy 20 Forged Socket Weld Union | Manufactured by forging to provide good mechanical strength, durability and consistent fitting geometry. |
| Alloy 20 Precision Machined Socket Weld Union | Precision-machined construction provides accurate socket dimensions and proper pipe fit-up. |
| Alloy 20 Class 3000 Socket Weld Union | Suitable for piping systems requiring Class 3000 pressure-rated fittings. |
| Alloy 20 Class 6000 Socket Weld Union | Designed for higher-pressure industrial piping applications requiring Class 6000 fittings. |
| Alloy 20 Class 9000 Socket Weld Union | Suitable for specialized high-pressure piping systems requiring Class 9000 fittings. |
| Customized Alloy 20 Socket Weld Union | Available according to customer drawings, dimensions, pressure class, surface finish, testing and documentation requirements. |
Why Should You Buy Alloy 20 Socket Weld Unions from MetalX Nickel & Alloys?
- Experienced Alloy 20 Socket Weld Union Supplier & Exporter serving international buyers, distributors, EPC contractors, stockholders, traders and industrial end users.
- 20+ Years of Nickel Alloy Industry Experience in supplying corrosion-resistant, high-performance and specialty alloy products across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Africa, Europe, Asia and other global markets.
- Specialized Alloy 20 Socket Weld Union Exporter offering Alloy 20 / Carpenter 20 / UNS N08020 / W.Nr. 2.4660 Socket Weld Unions according to applicable international standards and customer requirements.
- Global Alloy 20 Sourcing Network with access to reputed alloy mills, manufacturers, authorized suppliers and approved stockholders across the USA, Europe, Japan, South Korea and other major international supply markets.
- Reliable Alloy 20 Socket Weld Union Supplier providing nickel-iron-chromium alloy fittings with molybdenum and copper for applications requiring excellent resistance to sulfuric acid, general corrosion, pitting, crevice corrosion, chloride environments and stress-corrosion cracking.
- Wide Specialty Alloy Fittings Range including Alloy 20 Socket Weld Elbows, Alloy 20 Socket Weld Tees, Alloy 20 Socket Weld Couplings, Alloy 20 Socket Weld Unions, Alloy 20 Socket Weld Crosses, Alloy 20 Socket Weld Caps, Nickel 200 Socket Weld Fittings, Incoloy Socket Weld Fittings, Inconel Socket Weld Fittings and Hastelloy Socket Weld Fittings.
They are commonly used in chemical processing, petrochemical plants, power generation, heat-treatment equipment, industrial furnaces, heat exchangers, thermal processing systems and high-temperature process piping .
| Key Feature | Details |
|---|---|
| Corrosion Resistance | Excellent resistance to sulfuric acid and several other corrosive chemicals. |
| Pitting Resistance | Good resistance to pitting and localized corrosion. |
| Crevice Corrosion Resistance | Good resistance to crevice corrosion under suitable service conditions. |
| Intergranular Corrosion Resistance | Strong resistance to intergranular corrosion when properly supplied and processed. |
| Socket Weld Connection | Provides a strong, secure and compact welded pipe connection. |
| Union Design | Allows convenient assembly, maintenance and disconnection of connected piping sections. |
| Full & Reducing Options | Available as full unions and reducing unions according to piping requirements. |
| Mechanical Performance | Provides reliable mechanical strength and dimensional stability for industrial service. |
| Dimensional Accuracy | Accurately machined socket areas support proper pipe fit-up and installation. |
| Pressure Classes | Available in Class 1500, 3000, 6000 and higher classes as required. |
| Industrial Suitability | Suitable for demanding chemical and process piping applications. |
| Custom Specifications | Size, dimensions, pressure class, finish, testing and documentation can be customized. |
| Inspection & Certification | MTC, dimensional inspection, visual inspection and other testing can be provided as required. |
| Export-Ready Supply | Available with suitable export packaging and documentation for international shipments. |
| Specification | Details |
|---|---|
| Product Name | Alloy 20 Socket Weld Coupling |
| Material Grade | Alloy 20 / Carpenter 20 |
| Material Type | Nickel-Iron-Chromium Alloy with Molybdenum and Copper |
| UNS Designation | UNS N08020 |
| Werkstoff Number | W.Nr. 2.4660 |
| Common Grade | Alloy 20 |
| Connection Type | Socket Weld |
| Fitting Type | Socket Weld Coupling |
| Coupling Type | Full Coupling / Reducing Coupling |
| Manufacturing Type | Forged / Hot Forged / Precision Machined |
| Fitting Standard | ASTM B462 / ASME SB462, as applicable |
| Dimensional Standard | ASME B16.11 |
| Size Range | As per Requirement and Applicable Standard |
| Pressure Class | Class 3000 / 6000 / 9000, as applicable |
| End Connection | Socket Weld |
| Surface Finish | Machined / Pickled / Polished / Suitable Industrial Finish |
| Heat Treatment | Solution Annealed / As per Applicable Material Specification |
| Dimensions | As per ASME B16.11 and Customer Requirements |
| MTC | EN 10204 3.1 / 3.2, as required |
| Testing | Chemical / Mechanical / Dimensional / Visual / Hardness / PMI and Other Tests as Required |
| Tensile Strength | As per Applicable Alloy 20 Material Specification and Condition |
| Yield Strength | As per Applicable Alloy 20 Material Specification and Condition |
| Elongation | As per Applicable Material Standard |
| Density | Approximately 8.08 g/cm³ |
| Melting Range | Approximately 1440–1460°C |
| Corrosion Resistance | Excellent resistance to general corrosion and aggressive chemical environments |
| Pitting Resistance | Good resistance to pitting and localized corrosion |
| Crevice Corrosion Resistance | Good resistance to crevice corrosion under suitable service conditions |
| Acid Resistance | Excellent resistance to sulfuric acid and good resistance to selected phosphoric and other acids |
| Chloride Resistance | Good resistance to chloride-containing environments |
| Stress-Corrosion Resistance | Excellent resistance to chloride-induced stress-corrosion cracking under suitable conditions |
| Intergranular Corrosion Resistance | Good resistance when supplied and processed according to applicable requirements |
| Welding | Suitable for socket-welded piping systems using appropriate welding procedures |
| Fabrication | Suitable for machining and specialized fabrication using appropriate procedures |
| Dimensional Accuracy | Precision dimensions according to ASME B16.11 and applicable requirements |
| Available Forms | Full Socket Weld Coupling / Reducing Socket Weld Coupling / Forged Socket Weld Coupling |
| Customization | Size, Coupling Type, Bore Dimensions, Pressure Class, Finish, Testing and Documentation |
| Inspection | Dimensional, Visual and Material Inspection as Required |
| Marking | Size, Grade, Standard, Class and Heat/Batch Identification as Applicable |
| Origin | European / American / Japanese / Korean and Other Approved Origins |
| Export Supply | Worldwide Alloy 20 Socket Weld Coupling Export Supply |
| Exporter Support | Technical Specifications, Inspection, Certification, Export Packing, Documentation and International Shipment Coordination |
| Applications | Chemical Processing, Sulfuric Acid Handling, Phosphoric Acid Processing, Pharmaceutical, Food Processing, Petrochemical, Marine, Heat Exchangers and Corrosive Process Piping |
1. What is an Alloy 20 Socket Weld Union?
An Alloy 20 Socket Weld Union is a forged pipe fitting designed to connect two piping sections using socket weld connections. Its union design also allows easier assembly, maintenance and disconnection.
2. What material is used for Alloy 20 Socket Weld Unions?
These unions are manufactured from Alloy 20 / Carpenter 20 , a nickel-iron-chromium alloy containing molybdenum and copper. The UNS designation is N08020 .
3. What types of Alloy 20 Socket Weld Unions are available?
Common types include Full Socket Weld Union, Reducing Socket Weld Union, Forged Socket Weld Union and Precision Machined Socket Weld Union . Customized configurations can also be supplied.
4. What pressure classes are available?
Alloy 20 Socket Weld Unions can be supplied in Class 1500, Class 3000, Class 6000 and higher pressure classes , depending on size, applicable standard and project requirements.
5. Which standards are applicable to Alloy 20 Socket Weld Unions?
The dimensional requirements can be supplied according to ASME B16.11 , while material requirements may be supplied according to ASTM B462 or an equivalent applicable specification .
6. Where are Alloy 20 Socket Weld Unions used?
They are commonly used in chemical processing, sulfuric acid handling, pharmaceutical, petrochemical, fertilizer, food processing, marine and industrial process piping where corrosion resistance and a detachable compact connection are required.