MetalX Nickel Alloys

Super Duplex 2507 Welding Electrodes

ParameterDetails
Product NameSuper Duplex 2507 Welding Electrodes
AlloySuper Duplex 2507
UNS Base MetalS32750
EN Material No.1.4410
Electrode ClassificationE2594-15 / E2594-16
AWS StandardAWS A5.4
ASME StandardASME SFA 5.4
Electrode TypeSuper Duplex Stainless Steel Covered Electrode
Welding ProcessSMAW / MMA
CurrentAC / DC+ depending on classification
CoatingBasic / rutile-basic flux system
Weld StructureAustenitic-Ferritic Duplex
F-NumberF-4
Welding PositionsAll positions with suitable electrode sizes
Base MaterialsSuper Duplex 2507 and compatible duplex alloys
Corrosion ResistanceExcellent chloride pitting and SCC resistance
PRENTypically ≥40
Supply FormStraight coated electrodes
CertificationMTC / Certificate of Conformance available

 

Weld Metal Chemical Composition

ElementTypical Composition
Chromium (Cr)24.0–27.0%
Nickel (Ni)8.0–10.5%
Molybdenum (Mo)3.0–4.5%
Nitrogen (N)0.20–0.30%
Manganese (Mn)0.5–2.0%
Silicon (Si)0.5–1.0%
Carbon (C)0.04% max.
Copper (Cu)0.5–2.0%
Phosphorus (P)0.04% max.
Sulfur (S)0.03% max.
Iron (Fe)Balance

 

Standard Electrode Sizes & Current Range

Electrode DiameterInch EquivalentTypical DCEP Current
2.5 mm3/32″50–80 A
3.2 mm1/8″70–110 A
4.0 mm5/32″100–150 A
5.0 mm3/16″130–180 A

 

Mechanical & Quality Details

Property / FeatureDetails
Weld MetalSuper Duplex Stainless Steel
Minimum Tensile StrengthTypically ≥760 MPa
Minimum Yield StrengthTypically ≥550 MPa
Minimum ElongationTypically ≥20%
MicrostructureAustenite + Ferrite
Corrosion ResistanceExcellent against pitting, crevice corrosion and chloride SCC
Ferrite ControlCritical for weld performance
Heat InputControlled according to WPS
Interpass TemperatureStrictly controlled
Arc CharacteristicsStable and controlled
Slag RemovalDesigned for convenient removal
Pre-Weld CleaningOxide, oil, grease and contaminants must be removed
InspectionVisual and dimensional inspection
Chemical AnalysisHeat/lot verification as applicable
CertificationMTC / Certificate of Conformance
TraceabilityHeat / batch identification
PackagingMoisture-protected packaging

 

Why Should You Buy Super Duplex 2507 Welding Electrodes from Metalx Nickel & Alloys?

  • 20+ Years of Alloy Industry Experience – Extensive experience supplying stainless steel, duplex and specialty alloy products.
  • Super Duplex Expertise – Strong product knowledge for high-performance duplex stainless steel applications.
  • 2507 Grade Knowledge – Familiarity with UNS S32750 material and associated welding requirements.
  • Quality-Focused Supply – Products can be supplied against defined technical specifications.
  • Standards-Based Supply – Electrodes can be supplied according to applicable AWS, ASME and customer requirements.
  • Multiple Electrode Diameters – Common electrode sizes are available for different joint configurations.
  • Reliable Welding Consumables – Products are selected to support consistent welding performance.
  • Controlled Chemistry – Chemical composition can be verified against applicable requirements.
  • Dimensional Inspection – Electrode dimensions can be inspected where specified.
  • Visual Inspection – Coating condition and electrode appearance can be checked.
  • Weld Deposit Testing – Mechanical and chemical testing can be arranged where required.
  • Ferrite/Phase Consideration – Testing or verification can be arranged where required by the project specification.
  • Material Traceability – Heat and batch identification can be maintained for documented orders.
  • MTC Availability – Mill Test Certificates can be supplied with applicable orders.
  • EN 10204 Certification – 3.1 / 3.2 certification can be arranged where required.
  • Third-Party Inspection – Independent inspection agencies can be accommodated.
  • Technical Assistance – Support can be provided for electrode selection based on application and welding procedure.
  • Project-Based Supply – Suitable for fabrication, maintenance and large industrial projects.
  • Custom Packaging – Packaging can be arranged according to storage and transportation requirements.
  • Export Packaging – Export-ready packing can be provided for international shipments.
  • Global Supply Capability – Products can be supplied to customers across international markets.
  • Middle East Supply – Supply can be arranged for UAE, Saudi Arabia, Qatar, Oman and other regional markets.
  • Africa & Asia Supply – Export support is available for various African and Asian destinations.
  • European Market Support – Documentation and packing can be coordinated according to project specifications.
  • Competitive Pricing – Pricing depends on grade, electrode size, quantity and certification requirements.
  • Bulk Order Support – Large-volume requirements can be coordinated based on stock and production feasibility.
  • Fast Quotation Support – Quotations can be prepared against clear technical requirements.
  • Documentation Support – Inspection, certification and shipping documentation can be coordinated.
  • Application-Specific Selection – Electrode selection can be aligned with base material and qualified welding procedures.
  • Flexible Logistics – Domestic and international shipping requirements can be accommodated.
  • Customer-Specific Requirements – Marking, inspection, certification and packaging requirements can be incorporated where feasible.
 
 
 

Key Features of Super Duplex 2507 Welding Electrodes

  • Super Duplex Compatibility – Designed for welding Super Duplex 2507 and compatible super duplex stainless steel components.
  • High Alloy Weld Metal – Formulated to provide suitable weld-metal chemistry for demanding corrosion-resistant applications.
  • Exceptional Corrosion Resistance – Provides excellent resistance to aggressive industrial and marine environments.
  • Superior Pitting Resistance – High chromium, molybdenum and nitrogen content supports strong resistance to localized corrosion.
  • Excellent Crevice Corrosion Resistance – Suitable for components exposed to stagnant chloride-containing environments.
  • Outstanding Chloride Resistance – Well suited to seawater, brine and high-chloride process conditions.
  • Strong SCC Resistance – Super Duplex 2507 offers strong resistance to chloride stress corrosion cracking.
  • High Mechanical Strength – Provides significantly higher strength than conventional austenitic stainless steels.
  • Duplex Phase Balance – Properly controlled welding procedures help maintain the required ferrite-austenite balance.
  • Controlled Weld Deposition – Supports consistent deposition during manual SMAW operations.
  • Stable Arc Performance – Designed for controlled arc characteristics when used with appropriate welding parameters.
  • Good Fusion Characteristics – Helps achieve reliable fusion in qualified welding procedures.
  • Controlled Weld Bead – Suitable for producing consistent and manageable weld profiles.
  • Heat Input Control – Appropriate for welding procedures where heat input must be carefully controlled.
  • Interpass Temperature Control – Can be incorporated into qualified procedures requiring controlled interpass temperatures.
  • High PREN Performance – The alloy chemistry provides high resistance to pitting and crevice corrosion.
  • Seawater Service – Particularly suitable for selected equipment exposed to seawater and marine conditions.
  • Offshore Applications – Suitable for demanding offshore fabrication and maintenance requirements.
  • Oil & Gas Compatibility – Used for selected high-corrosion-resistance piping and process equipment.
  • Subsea Equipment – Applicable to qualified subsea and marine components.
  • Desalination Suitability – Useful for seawater intake, desalination and brine-handling equipment.
  • Chemical Processing Use – Suitable for selected aggressive chemical process applications.
  • Petrochemical Service – Applicable to corrosion-resistant vessels, piping and process equipment.
  • Water Treatment Applications – Suitable for equipment exposed to corrosive water and saline environments.
  • Heat Exchanger Fabrication – Can be used for compatible super duplex heat-transfer equipment.
  • Pressure Vessel Welding – Suitable for qualified super duplex pressure-containing fabrication.
  • Piping Fabrication – Appropriate for welding super duplex process and utility piping.
  • Pump & Valve Components – Can be used for compatible pumps, valves and flow-control equipment.
  • High Strength-to-Weight Advantage – High strength can support efficient engineering and equipment design.
  • Good Fatigue Resistance – Duplex metallurgy can be beneficial in applications involving cyclic service.
  • Corrosion-Fatigue Performance – Suitable for selected equipment experiencing combined mechanical and corrosive loading.
  • Controlled Electrode Coating – Coating is designed for consistent welding performance and deposition.
  • Multiple Diameter Availability – Different electrode sizes can be selected for varying joint configurations.
  • Custom Supply Options – Diameter, length, packaging and documentation can be supplied according to requirements.
  • Traceability – Heat and batch identification can be maintained for documented orders.
  • Quality Documentation – Inspection and certification documents can be arranged as specified.
  • Export-Ready Packaging – Moisture-protected and clearly labeled packaging is available for international shipment.
SpecificationSuper Duplex 2507 Welding Electrodes Details
Product NameSuper Duplex 2507 Welding Electrodes
Common NameSuper Duplex 2507 / SDSS 2507 Electrodes
Material GradeSuper Duplex Stainless Steel 2507
UNSS32750
Werkstoff No.1.4410
Material TypeFerritic-Austenitic Super Duplex Stainless Steel
StandardAWS A5.4 / ASME SFA-5.4, applicable classification
Welding ProcessSMAW / Manual Metal Arc Welding
Electrode TypeCovered Super Duplex Stainless Steel Welding Electrode
Electrode DiameterAs per welding procedure and customer requirement
Common Sizes2.5 mm, 3.2 mm, 4.0 mm, 5.0 mm
Electrode LengthStandard and customized lengths subject to availability
CoatingSuper duplex stainless steel compatible coating
Surface ConditionUniform, clean and defect-free electrode coating
ManufacturingPrecision manufactured with controlled weld-metal chemistry
StorageDry and controlled storage according to manufacturer’s recommendations
TestingChemical, mechanical, dimensional, visual and weld-deposit testing can be arranged
InspectionThird-party inspection available on request
Material CertificationMTC can be provided
CertificationEN 10204 3.1 / 3.2 can be arranged where required
PackagingMoisture-protected, labeled and export-worthy packaging
CustomizationElectrode diameter, length, packaging and documentation options available
ApplicationsOffshore, oil & gas, marine, desalination, chemical, petrochemical, power and water treatment

 

Who supplies Super Duplex 2507 Welding Electrodes?

METALX NICKEL & ALLOYS supplies Super Duplex 2507 Welding Electrodes for domestic and international industrial applications.

They can be supplied in moisture-protected and clearly labeled packaging suitable for storage and transportation.

Yes. Third-party inspection can be coordinated when required by the customer or project specification.

Yes. EN 10204 3.1 / 3.2 certification can be arranged according to project requirements

Yes. Mill Test Certificates can be provided where specified.

Yes. Their high resistance to chloride and seawater corrosion makes them suitable for selected desalination applications.

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