Nascent Fittings Inc.·Duplex Steel
Duplex Steel Long Stubend
ASME B16.9 buttweld elbows, tees, reducers & caps in SS, CS, alloy, duplex & nickel alloys. Sch 10–XXS, MTCs, inspection support and worldwide export supply.
- Material
- Duplex Steel
- Size
- 1/2" to 80" NB
- Schedule
- Sch 10/20/40/XS/60/80/100/120/140/160/XXS
- Grades
- UNS S31803, UNS S32205, UNS S32750 +
About
Duplex Steel Buttweld Fittings
Product overview combined with Duplex Steel material context for project selection.
Nascent fittings is a reputed manufacturer and exporter of a wide range of Buttweld fittings which are used in industrial pipe systems to change direction, branching and to mechanically connect equipments to the system including high temperature conditions like furnace.
Manufacturing note
The Stub End, which is essentially a short length of pipe, which has one end that is flared outwards and the other end prepared to be welded to pipe of the same Nominal Pipe Size (NPS), material and of a similar wall thickness. Being a customer focused company Nascent fittings manufacturers and exports long stub ends making them an outstanding solution for a variety of industrial applications. Based on their demand long stub end is presented to various industries in a customised order. Furthermore, our purchase can order this stub end in a variety of arrays including dimensions, types, thickness and length size. Nascent fittings produce these long stub ends in large proportions in order to meet the requirements of reputable clients. Long Stub Ends are the opposite of Short Stub Ends. They have a longer hub length. These stub ends come in different types to administer convenient and conducive joining at pipe connections.
Typical applications
- Oil & Gas
- Petrochemical
- Chemical Processing
- Power Generation
- Marine
- Desalination
Configurations
Duplex Steel Buttweld Fittings types
Open a type for drawings-aligned specifications.
Duplex Steel 180° Elbow
Duplex Steel 45° Elbow
Duplex Steel 90° Elbow
Duplex Steel Barred Nipples
Duplex Steel Barred Tee
Duplex Steel Cross Tee
Duplex Steel End Cap
Duplex Steel Equal Tee
Duplex Steel Laterals
Duplex Steel Long Stubend
Duplex Steel Reducer
Duplex Steel Reducing Tee
Duplex Steel Short Stubend
Duplex Steel Swage Nipples
Duplex Steel U Bend
Material scope
Duplex Steel specification
Dimensional and grade range typically supplied for Long Stubend in this material.
- Grade
- Duplex Steel: ASTM A815- UNS S31803, S32205, S32750, S32760
Duplex Steel grades
Available grades for Buttweld Fittings
Drawn from the Duplex Steel catalog and this product’s material specification.
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 Buttweld Fittings in another material grade family.
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Material
Low Temperature Carbon Steel
ASTM A420 WPL6
View
Material
Cupro Nickel
Cu-Ni 90/10 (C70600) · Cu-Ni 70/30 (C71500)
View
Material
Nickel Alloy
Nickel 200 · Nickel 201
View
Material
Monel
Monel 400 · Monel K500
View
Material
Hastelloy
Hastelloy C-276 · Hastelloy C-22
View
Material
Aluminium
3003-H18 · 3003-H112
View
Material
Titanium
Grade 1 · Grade 2
View
Material
Stainless Steel
SMO 254 · F304
View
Material
Alloy Steel
F5 · F9
View
Material
Carbon Steel
ASTM A234 WPB · P235TR2
View
Material
Copper
C11000 (ETP) · C12200 (DHP)
View
Material
Copper Alloy
UNS C70600 (Cu-Ni 90/10) · UNS C71500 (Cu-Ni 70/30)
ViewCompliance
Standards & certificates
Specifications and documentation typically referenced for this product line — details from our shared compliance catalog.
Standards
7ASME 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
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
MSS SP-75
MSSHigh-strength, wrought, butt-welding fittings.
- Scope
- Requirements for high-yield-strength wrought butt-welding fittings for pipelines and related services.
- Applies To
- Elbows, tees, reducers and caps in high-strength carbon/alloy steels
MSS SP-97
MSSIntegrally reinforced forged branch outlet fittings.
- Scope
- Design and dimensions for forged branch outlets (olets) that reinforce the branch connection.
- Applies To
- Weldolets, sockolets, threadolets, latrolets, elbolet and related outlets
MSS SP-95
MSSSwage(d) nipples and bull plugs.
- Scope
- Dimensions and marking for swage nipples and bull plugs.
- Applies To
- Concentric and eccentric swage nipples, bull plugs
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.
Manufacturing
Crafted with care
Workshop and production views for Duplex Steel Long Stubend — the same craftsmanship photos from our plant archives, shown in webp.
2 photos
People also ask
Questions about Buttweld Fittings
Nascent Fittings Inc. answers common buyer questions for this line.
Does Nascent Fittings Inc. manufacture Buttweld Fittings?+
Yes. Nascent Fittings Inc. manufactures and supplies Buttweld Fittings for industrial piping projects, with material grades and sizes aligned to project specifications.
Can Nascent Fittings Inc. export Buttweld Fittings worldwide?+
Yes. We export Buttweld Fittings globally with standard export packaging, material test certificates, and documentation support for international shipments.
What materials are available for Buttweld Fittings?+
Buttweld 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 Long Stubend?
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