Nascent Fittings Inc.·Alloy Steel
Alloy Steel Short 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
- Alloy Steel
- Size
- 1/2" to 80" NB
- Schedule
- Sch 10/20/40/XS/60/80/100/120/140/160/XXS
- Grades
- F5, F9, F11 +
About
Alloy Steel Buttweld Fittings
Product overview combined with Alloy 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
Nascent Fittings is a manufacturer and exporter of a wide range of short stub ends, which are made from the exquisite raw material. Nascent fittings INC focuses on contributing several kinds of stub ends. The professionals abide by all the national and international product quality standards while producing these stub ends. It is exported and bestowed to our clients in a variety of standards, thickness, dimensions, sizes and types under competitive prices. Also, these Stub ends are best for use in paper and pulp processing, heat exchanges, gas processing and power generation among other appeals. Short pattern stub ends are mostly used for flanges from class 300 to class 600 and above. Besides these standard types, End-Users and contractors can require stub ends with non-standard lengths to suit specific project’s requirements. This will of course come at an additional cost.
Typical applications
- Power Generation
- Thermal Power Plants
- Refineries
- Petrochemical Plants
- Oil & Gas
- Pressure Vessels
Configurations
Alloy Steel Buttweld Fittings types
Open a type for drawings-aligned specifications.

Alloy Steel 180° Elbow

Alloy Steel 45° Elbow

Alloy Steel 90° Elbow

Alloy Steel Barred Nipples

Alloy Steel Barred Tee

Alloy Steel Cross Tee

Alloy Steel End Cap

Alloy Steel Equal Tee

Alloy Steel Laterals

Alloy Steel Long Stubend

Alloy Steel Reducer

Alloy Steel Reducing Tee

Alloy Steel Short Stubend

Alloy Steel Swage Nipples

Alloy Steel U Bend
Material scope
Alloy Steel specification
Dimensional and grade range typically supplied for Short Stubend in this material.
- Grade
- Alloy Steel: ASTM A 234, WP5, WP9, WP11, WP12, WP91
Alloy Steel grades
Available grades for Buttweld Fittings
Drawn from the Alloy Steel catalog and this product’s material specification.
F5
5% chromium alloy steel with improved oxidation resistance.
Best for · High temperature applications
F9
9% chromium alloy steel with superior heat resistance.
Best for · Elevated temperature service
F11
Chrome moly alloy steel offering excellent creep resistance.
Best for · High-pressure steam service
F91
Premium 9Cr-1Mo-V alloy steel with exceptional creep resistance.
Best for · Ultra-supercritical power plants
WP12 / F12
1.25Cr-0.5Mo alloy steel buttweld grade related to ASTM A234 WP12 / A182 F12 for elevated temperature service.
Best for · Chrome-moly buttweld fittings
Also available in
Other materials for this product
View Buttweld Fittings in another material grade family.
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Material
Duplex Steel
UNS S31803 · UNS S32205
View
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
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.
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.
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.
Manufacturing
Crafted with care
Workshop and production views for Alloy Steel Short 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 Alloy Steel Short Stubend?
Share sizes, material grade and quantity — manufacturing options and delivery timelines follow.







