MetalX Nickel Alloys

Hastelloy C22 Socket Weld Union

Hastelloy C22 Socket Weld Union
SpecificationDetails
Product NameHastelloy C22 Socket Weld Union
Material GradeHastelloy C22 / Alloy C22
UNS DesignationUNS N06022
Werkstoff NumberW.Nr. 2.4602
Material TypeNickel-Chromium-Molybdenum-Tungsten Alloy
Chemical CompositionNickel Balance, Chromium approximately 20–22.5%, Molybdenum approximately 12.5–14.5%, Tungsten approximately 2.5–3.5%, Iron approximately 2–6%, Carbon 0.015% max
Fitting TypeSocket Weld Union
Union TypeFull Union / Reducing Union
Manufacturing TypeForged / Hot Forged / Precision Machined
Fitting StandardASTM B366 / ASME SB366, as applicable
Dimensional StandardASME B16.11
Size1/8″ to 4″ NPS or As per Customer Requirement
Pressure ClassClass 3000 / 6000 / 9000, as applicable
Connection TypeSocket Weld
End ConnectionSocket Weld
Surface FinishBright / Pickled / Machined / Polished / Passivated / As Specified
Heat TreatmentSolution Annealed / As per Applicable Material Specification
DimensionsAs per ASME B16.11 and Customer Requirements
MTCEN 10204 3.1 / 3.2
TestingChemical / Mechanical / Dimensional / Hardness / Visual / PMI and Other Tests as Required
Tensile StrengthAs per Applicable Hastelloy C22 Material Specification and Condition
Yield StrengthAs per Applicable Hastelloy C22 Material Specification and Condition
ElongationAs per Applicable Material Standard
DensityApproximately 8.69 g/cm³
Melting RangeApproximately 1357–1399°C
Corrosion ResistanceExcellent resistance to general and aggressive corrosion
Pitting ResistanceExcellent resistance to pitting and localized corrosion
Crevice Corrosion ResistanceExcellent resistance to crevice corrosion
Chloride ResistanceExcellent resistance to chloride-containing environments
Stress-Corrosion ResistanceExcellent resistance to chloride-induced stress-corrosion cracking
Acid ResistanceExcellent resistance to selected oxidizing and reducing acids
Oxidation ResistanceGood resistance to oxidation under suitable service conditions
High-Temperature PerformanceGood mechanical stability and corrosion resistance at elevated temperatures
WeldingSuitable for socket-welded piping systems using appropriate nickel-alloy welding procedures
FabricationSuitable for precision machining and specialized fabrication
Dimensional AccuracyPrecision dimensions according to ASME B16.11 and applicable requirements
Available FormsFull Socket Weld Union / Reducing Socket Weld Union / Forged Union
CustomizationSize, Union Type, Pressure Class, Dimensions, Finish, Testing and Documentation
InspectionDimensional, Visual and Material Inspection as Required
MarkingSize, Grade, Standard and Heat/Batch Identification as Applicable
OriginEuropean / American / Japanese / Korean and Other Approved Origins
Export SupplyWorldwide Hastelloy C22 Socket Weld Union Export Supply
Exporter SupportTechnical Specifications, Inspection, Certification, Export Packing, Documentation and International Shipment Coordination
ApplicationsChemical Processing, Petrochemical, Pharmaceutical, Oil & Gas, Wastewater Treatment, Pollution Control, Power Generation, Marine and Industrial Process Piping

1. Hastelloy C22 Socket Weld Union – Common Types

TypeDescription
Hastelloy C22 Full Socket Weld UnionConnects two pipes of the same nominal size and provides a strong, compact and removable connection.
Hastelloy C22 Reducing Socket Weld UnionConnects pipes or components of different sizes where a reduction in connection size is required.
Hastelloy C22 Forged Socket Weld UnionForged construction provides good mechanical strength, structural integrity and dimensional consistency.
Hastelloy C22 Class 3000 UnionSuitable for socket weld piping systems requiring Class 3000 pressure-rated connections.
Hastelloy C22 Class 6000 UnionDesigned for higher-pressure piping systems requiring Class 6000 socket weld unions.
Hastelloy C22 Class 9000 UnionUsed for specialized high-pressure applications requiring Class 9000 fittings.
Hastelloy C22 Precision Machined UnionManufactured with accurately machined socket dimensions for reliable alignment and installation.
Hastelloy C22 Customized Socket Weld UnionSupplied according to customer requirements for size, configuration, pressure class, finish, testing and documentation.

2. Hastelloy C22 Socket Weld Union – Technical Specifications

SpecificationDetails
Product NameHastelloy C22 Socket Weld Union
Material GradeHastelloy C22 / Alloy C22
UNS DesignationUNS N06022
Werkstoff NumberW.Nr. 2.4602
Material TypeNickel-Chromium-Molybdenum-Tungsten Alloy
Fitting TypeSocket Weld Union
Union TypeFull Union / Reducing Union
Manufacturing TypeForged / Hot Forged / Precision Machined
Material StandardASTM B366 / ASME SB366, as applicable
Dimensional StandardASME B16.11
Size1/8″ to 4″ NPS or As per Customer Requirement
Pressure ClassClass 3000 / 6000 / 9000, as applicable
Connection TypeSocket Weld
End ConnectionSocket Weld
Surface FinishBright / Pickled / Passivated / Machined / Polished / As Specified
Heat TreatmentSolution Annealed / As per Applicable Material Specification
DimensionsAs per ASME B16.11 and Customer Requirements
MTCEN 10204 3.1 / 3.2
TestingChemical / Mechanical / Dimensional / Hardness / Visual / PMI and Other Tests as Required
Corrosion ResistanceExcellent resistance to general and aggressive corrosion
Pitting ResistanceExcellent resistance to pitting and localized corrosion
Crevice Corrosion ResistanceExcellent resistance to crevice corrosion
Chloride ResistanceExcellent resistance to chloride-containing environments
Stress-Corrosion ResistanceExcellent resistance to chloride-induced stress-corrosion cracking
Acid ResistanceExcellent resistance to selected oxidizing and reducing acids
Oxidation ResistanceGood resistance to oxidation under suitable service conditions
High-Temperature PerformanceGood mechanical stability and corrosion resistance at elevated temperatures
WeldingSuitable for socket-welded piping systems using appropriate nickel-alloy welding procedures
FabricationSuitable for precision machining and specialized fabrication
Dimensional AccuracyPrecision dimensions according to ASME B16.11 and applicable requirements
Available FormsFull Socket Weld Union / Reducing Socket Weld Union / Forged Union
CustomizationSize, Union Type, Pressure Class, Dimensions, Finish, Testing and Documentation
InspectionDimensional, Visual and Material Inspection as Required
OriginEuropean / American / Japanese / Korean and Other Approved Origins
Export SupplyWorldwide Hastelloy C22 Socket Weld Union Export Supply
ApplicationsChemical Processing, Petrochemical, Pharmaceutical, Oil & Gas, Marine, Power Generation, Wastewater Treatment and Industrial Process Piping

3. Hastelloy C22 Socket Weld Union – Supply & Export Details

Supply ParameterAvailable Options
Union ConfigurationFull Union / Reducing Union
Size Range1/8″ to 4″ NPS, subject to applicable standard
Pressure ClassesClass 3000 / 6000 / 9000
MaterialHastelloy C22 / Alloy C22 / UNS N06022
ManufacturingForged / Hot Forged / Precision Machined
ConnectionSocket Weld
Surface FinishBright / Pickled / Passivated / Polished / Machined
Heat TreatmentSolution Annealed / As Required
Dimensional InspectionSocket, Bore, Overall Dimensions and Tolerances
Chemical TestingChemical Composition / PMI
Mechanical TestingTensile / Yield / Elongation as Applicable
Visual InspectionSurface and Workmanship Inspection
Hardness TestingAs Required
NDTAs Required by Project or Purchase Specification
CertificationEN 10204 3.1 / 3.2
Third-Party InspectionAvailable as per Customer Requirement
Material TraceabilityHeat Number and Material Identification
MarkingSize, Grade, Standard and Heat/Batch Identification
PackagingExport-Worthy / Seaworthy Protective Packaging
CustomizationSize, Union Type, Pressure Class, Finish, Testing and Documentation
OriginEuropean / American / Japanese / Korean and Other Approved Origins
Exporter SupportTechnical Specifications, Inspection, Certification, Export Packing and Shipment Coordination
Export SupplyWorldwide Hastelloy C22 Socket Weld Union Supply
ApplicationsChemical, Pharmaceutical, Petrochemical, Oil & Gas, Marine, Pollution Control, Power Generation and High-Performance Piping Applications

Most Common Types Of Hastelloy C22 Socket Weld Union

TypeDescription
Hastelloy C22 Full Socket Weld UnionConnects two pipes of the same nominal size and provides a secure, compact and removable piping connection.
Hastelloy C22 Reducing Socket Weld UnionUsed to connect two pipes or components having different nominal sizes.
Hastelloy C22 Forged Socket Weld UnionForged construction provides high structural integrity, good strength and dimensional consistency.
Hastelloy C22 Class 3000 Socket Weld UnionSuitable for piping systems requiring Class 3000 pressure-rated socket weld unions.
Hastelloy C22 Class 6000 Socket Weld UnionDesigned for higher-pressure piping systems requiring Class 6000 fittings.
Hastelloy C22 Class 9000 Socket Weld UnionUsed for specialized high-pressure applications requiring Class 9000 socket weld connections.
Hastelloy C22 Precision Machined UnionAccurately machined socket dimensions provide reliable pipe alignment and installation.
Hastelloy C22 Customized Socket Weld UnionManufactured according to customer requirements for size, configuration, pressure class, finish, testing and documentation.
Why Should You Buy Hastelloy C22 Socket Weld Unions from MetalX Nickel & Alloys?
  • Experienced Hastelloy C22 Socket Weld Union Supplier & Exporter serving international buyers, importers, distributors, EPC contractors, stockholders, traders and industrial end users.
  • 20+ Years of Nickel Alloy Industry Experience in supplying corrosion-resistant, high-performance and specialty nickel alloy products across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Africa, Europe, Asia and other global markets.
  • Specialized Hastelloy C22 Socket Weld Union Exporter offering Hastelloy C22 / Alloy C22 / UNS N06022 / W.Nr. 2.4602 Socket Weld Unions according to applicable international standards and customer requirements.
  • Global Hastelloy C22 Sourcing Network with access to reputed nickel alloy mills, manufacturers, authorized suppliers and approved stockholders across the USA, Europe, Japan, South Korea and other major supply markets.
  • Reliable Hastelloy C22 Socket Weld Union Supplier providing nickel-chromium-molybdenum-tungsten alloy fittings for applications requiring excellent corrosion resistance, pitting and crevice corrosion resistance, chloride resistance, acid resistance and reliable mechanical strength.
  • Wide Nickel Alloy Fittings Range including Hastelloy C22 Socket Weld Elbows, Hastelloy C22 Socket Weld Tees, Hastelloy C22 Socket Weld Couplings, Hastelloy C22 Socket Weld Unions, Hastelloy C22 Socket Weld Crosses, Hastelloy C22 Socket Weld Caps and Hastelloy C22 Socket Weld Reducers.
  • Full & Reducing Union Supply – Available in Full Socket Weld Unions and Reducing Socket Weld Unions for different pipe connection requirements.
Key FeatureDetails
Excellent Corrosion ResistanceProvides excellent resistance to general corrosion in aggressive chemical and industrial environments.
Pitting & Crevice Corrosion ResistanceOffers strong resistance to localized corrosion, including pitting and crevice attack.
Stress-Corrosion Cracking ResistanceProvides excellent resistance to chloride-induced stress-corrosion cracking under suitable conditions.
Chemical ResistanceSuitable for aggressive chemical media, acids, chlorides and demanding process fluids.
Oxidizing & Reducing MediaPerforms well across a broad range of oxidizing and reducing environments.
Forged ConstructionProvides good structural integrity, mechanical strength and dimensional consistency.
Compact Socket Weld DesignProvides a strong and compact connection for small-bore and space-restricted piping systems.
Removable Union ConnectionThe union configuration allows convenient assembly, disconnection and maintenance where required.
Multiple ConfigurationsAvailable as Full Unions and Reducing Unions for different piping requirements.
Multiple Pressure ClassesCan be supplied in Class 3000, 6000 and 9000 configurations, where applicable.
Good Mechanical StrengthProvides dependable strength and durability under demanding operating conditions.
Precision DimensionsAccurately machined socket dimensions support reliable pipe alignment and installation.
High-Temperature PerformanceSuitable for demanding elevated-temperature service within applicable design limits.
Inspection & CertificationMTC, PMI, dimensional inspection and other quality documentation can be provided as required.
Custom SupplySize, union configuration, pressure class, finish, testing and documentation can be customized.
Export-Ready SupplyProtective export packaging and required documentation can be arranged for international transportation.
SpecificationDetails
Product NameHastelloy C22 Socket Weld Union
Material GradeHastelloy C22 / Alloy C22
UNS DesignationUNS N06022
Werkstoff NumberW.Nr. 2.4602
Material TypeNickel-Chromium-Molybdenum-Tungsten Alloy
Material StandardASTM B366 / ASME SB366, as applicable
Manufacturing StandardASME B16.11
Fitting TypeSocket Weld Union
Union TypeFull Union / Reducing Union
Connection TypeSocket Weld
Pressure ClassesClass 3000 / 6000 / 9000, as applicable
Size Range1/8″ to 4″, or as required
ShapeUnion
Manufacturing ProcessForged / Hot Forged / Precision Machined
End TypeSocket Weld
Surface FinishForged / Machined / Pickled / Passivated / Polished / As Specified
Heat TreatmentSolution Annealed / As per Applicable Material Specification
TestingChemical / Mechanical / Dimensional / Hardness / Visual / PMI and Other Tests as Required
InspectionDimensional, Visual and Material Inspection Available
MTCEN 10204 3.1 / 3.2, as Required
Corrosion ResistanceExcellent resistance to general and localized corrosion
Pitting ResistanceExcellent resistance to pitting and crevice corrosion
Chloride ResistanceExcellent resistance to chloride-containing environments
Stress-Corrosion ResistanceExcellent resistance to chloride-induced stress-corrosion cracking
Acid ResistanceExcellent resistance to selected oxidizing and reducing acids
High-Temperature PerformanceGood mechanical stability and corrosion resistance at elevated temperatures
WeldingSuitable for socket-welded piping systems using appropriate nickel-alloy welding procedures
Dimensional AccuracyPrecision dimensions according to ASME B16.11 and applicable requirements
Available FormsFull Socket Weld Union / Reducing Socket Weld Union / Forged Union
CustomizationSize, Union Type, Pressure Class, Dimensions, Finish, Testing, Marking and Documentation
MarkingSize, Grade, Standard and Heat/Batch Identification as Applicable
OriginEuropean / American / Japanese / Korean and Other Approved Origins
Export SupplyWorldwide Hastelloy C22 Socket Weld Union Export Supply
Exporter SupportTechnical Specifications, Inspection, Certification, Export Packing, Documentation and Shipment Coordination
ApplicationsChemical Processing, Petrochemical, Pharmaceutical, Oil & Gas, Marine, Power Generation, Wastewater Treatment, Pollution Control and Industrial Process Piping
1. What is a Hastelloy C22 Socket Weld Union?

A Hastelloy C22 Socket Weld Union is a forged nickel-alloy piping fitting manufactured from Hastelloy C22 / UNS N06022. It provides a strong socket weld connection while allowing convenient disconnection for maintenance when required.

The commonly available types include Full Socket Weld Unions and Reducing Socket Weld Unions . They can also be supplied in different sizes and pressure classes according to application requirements.

Hastelloy C22 Socket Weld Unions are generally manufactured according to ASME B16.11 for dimensional requirements and ASTM B366 / ASME SB366 for applicable material requirements.

Common pressure classes include Class 3000, Class 6000 and Class 9000 , subject to the fitting size, design and applicable specification.

They offer excellent resistance to general corrosion, pitting, crevice corrosion, chloride attack and stress-corrosion cracking . Their compact socket weld design also makes them suitable for demanding and space-restricted piping systems.

Yes. METALX NICKEL ALLOYS can supply customized unions according to required size, union type, pressure class, dimensions, surface finish, heat treatment, testing, inspection, certification, marking and packaging requirements.

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