Nascent Fittings Inc.·Duplex Steel
Duplex Steel Welded Fittings
ASME B16.9 welded elbows, tees, reducers & caps in SS, CS, alloy & duplex. Project sizes with MTCs and global industrial export.
- Material
- Duplex Steel
- Size
- 1/2" NB to 48" NB
- Schedule
- Sch 5s through XXS / custom
- Standard
- ASME B16.9
About
Duplex Steel Welded Fittings
Product overview combined with Duplex Steel material context for project selection.
Welded pipe fittings for fabricated and ERW line systems where welded construction meets project cost and delivery needs. Nascent supplies elbows, tees, reducers, caps and related shapes in carbon, stainless, alloy and duplex steels to ASME B16.9 / MSS dimensions.
Welded fittings are produced with controlled weld quality, NDE options as specified, and full material traceability for oil & gas, power, water and process industry piping.
Typical applications
- Oil & Gas
- Petrochemical
- Chemical Processing
- Power Generation
- Marine
- Desalination
Configurations
Duplex Steel Welded Fittings types
Open a type for drawings-aligned specifications.
Duplex Steel grades
Available grades for Welded Fittings
Drawn from the Duplex Steel catalog and this product’s material specification.
F44
UNS S31254
High alloy duplex stainless steel.
F45
UNS S31803
Duplex stainless steel with excellent corrosion resistance.
F51
UNS S31803
Most common duplex grade.
F60
UNS S32205
High strength duplex steel.
F61
UNS S32550
Premium duplex steel for aggressive service.
UNS S31803
UNS S31803
Standard duplex stainless (22Cr) commonly supplied to ASTM A815 / A182 F51.
Best for · General duplex piping
UNS S32205
UNS S32205
Modern dual-certified duplex chemistry aligned with F60 / 2205 practice.
Best for · High-strength duplex service
UNS S32750
UNS S32750
Super duplex 25Cr grade for severe chloride and high-strength applications.
Best for · Super duplex chloride resistance
UNS S32760
UNS S32760
Super duplex with tungsten additions for aggressive seawater and process media.
Best for · Aggressive seawater and process fluids
Also available in
Other materials for this product
View Welded Fittings in another material grade family.
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Carbon Steel
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Monel
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Hastelloy
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Copper
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Low Temperature Carbon Steel
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Nickel Alloy
Welded Fittings
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Copper Alloy
Welded Fittings
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Cupro Nickel
Welded Fittings
ViewCompliance
Standards & certificates
Specifications and documentation typically referenced for this product line — details from our shared compliance catalog.
Standards
5ASME B16.9
ASMEFactory-made wrought buttwelding fittings.
- Scope
- Dimensions, tolerances, ratings, and markings for wrought buttweld fittings.
- Applies To
- Elbows, tees, reducers, caps, crosses, stub ends and related forms
- Size Coverage
- Typically NPS ½ through 48
- Related
- MSS SP-43, ASME B16.28
ASME B16.28
ASMEWrought steel buttwelding short radius elbows and returns.
- Scope
- Dimensions and marking for short-radius elbows and 180° returns.
- Applies To
- Short radius elbows and return bends
- Related
- ASME B16.9
MSS SP-43
MSSWrought and fabricated butt-welding fittings for low pressure, corrosion resistant applications.
- Scope
- Dimensions for stainless and alloy butt-weld fittings intended for low-pressure service.
- Applies To
- Buttweld fittings in corrosion-resistant alloys
- Related
- ASME B16.9
ASTM A182
ASTMForged or rolled alloy and stainless steel pipe flanges, fittings, valves and parts.
- Scope
- Forged and rolled stainless, alloy and duplex steel components for high-temperature service.
- Applies To
- Flanges, fittings, valves and pressure parts
- Typical Grades
- F304/L, F316/L, F11, F22, F91, F51/F60 and related
ASME SA182
ASMEASME equivalent of ASTM A182 for forged stainless and alloy components.
- Scope
- Boiler and pressure vessel code adoption of ASTM A182 material requirements.
- Related
- ASTM A182
Certificates
5EN 10204 3.1
Mill test certificate with inspection by the manufacturer’s authorized inspection representative, independent of manufacturing.
- Type
- Inspection document (MTC)
- Scope
- States chemical analysis, mechanical test results and heat / lot identification for the supplied material.
- Documentation
- EN 10204 Type 3.1
- Benefit
- Provides traceable material evidence required on most industrial RFQs.
NACE MR0175
Materials for use in H₂S-containing environments in oil and gas production.
- Type
- Service / sour-service requirement
- Scope
- Limits hardness, microstructure and material selection for sulfide stress cracking resistance.
- Applies To
- Carbon, alloy and CRA piping products ordered for sour service
- Benefit
- Supports upstream oil & gas projects specifying sour-service compliance.
ISO 9001
Quality Management System certification.
- Type
- Quality Management System
- Scope
- Demonstrates a documented QMS covering process control, traceability and continual improvement across manufacturing and supply.
- Benefit
- Assures buyers of consistent product quality and controlled production practices.
- Issued As
- Third-party accredited certificate
PED
Pressure Equipment Directive compliance for equipment placed on the EU market.
- Type
- Regulatory conformity
- Scope
- Design and conformity assessment requirements for pressure equipment and assemblies in the European Union.
- Benefit
- Enables supply of pressure-rated components into EU projects when PED conformity is required.
- Related
- CE marking / Notified Body routes as applicable
IBR
Indian Boiler Regulations approval for boiler-quality piping materials and components.
- Type
- Regulatory approval
- Scope
- Materials and components intended for use under Indian boiler installations.
- Benefit
- Required for many power and process projects under IBR jurisdiction in India.
People also ask
Questions about Welded Fittings
Nascent Fittings Inc. answers common buyer questions for this line.
Does Nascent Fittings Inc. manufacture Welded Fittings?+
Yes. Nascent Fittings Inc. manufactures and supplies Welded Fittings for industrial piping projects, with material grades and sizes aligned to project specifications.
Can Nascent Fittings Inc. export Welded Fittings worldwide?+
Yes. We export Welded Fittings globally with standard export packaging, material test certificates, and documentation support for international shipments.
What materials are available for Welded Fittings?+
Welded Fittings is available in carbon steel, alloy steel, stainless steel, duplex, nickel alloys, copper alloys, aluminium, titanium and other project-specific materials as required.
Need pricing for Duplex Steel Welded Fittings?
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