Nascent Fittings Inc.·Carbon Steel

Carbon Steel Swage Nipples

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.

Carbon Steel Swage Nipples
Material
Carbon Steel
Size
1/2" to 80" NB
Schedule
Sch 10/20/40/XS/60/80/100/120/140/160/XXS
Grades
ASTM A234 WPB, P235TR2, P265TR2 +

About

Carbon Steel Buttweld Fittings

Product overview combined with Carbon 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

Swage nipples are used to bring the flow of fluids from one pipe size to another pipe size. The function of a swage nipple is to change the pipe’s diameter and to connect two pipes of different sizes. The swage nipple is divided into concentric swage nipple and eccentric swage nipple. Concentric swage nipple is mainly used for vertical pipelines; eccentric swage nipple is mainly used in horizontal pipelines. Nascent fittings produce swage nipples of customers with specific requirements. there are two types of swage nipples i.e. 1. Concentric swage nipples and 2. Eccentric swage nipple with numerous dimensions, sizes, materials and standards. The customers appreciate Swage nipples because they are manufactured with the highest quality components available and also for long service life, light weight, high strength and accurate dimensions.

Typical applications

  • Oil & Gas
  • Petrochemical
  • Chemical Processing
  • Power Generation
  • Refineries
  • Pressure Vessels

Carbon Steel grades

Available grades for Buttweld Fittings

Drawn from the Carbon Steel catalog and this product’s material specification.

ASTM A234 WPB

Standard carbon steel buttweld fitting grade for moderate and elevated temperature service.

Best for · General buttweld piping

P235TR2

EN carbon steel grade for welded tubes for pressure purposes with specified elevated temperature properties.

Best for · Pressure tubing

P265TR2

Higher-strength EN carbon steel for welded pressure tubes.

Best for · Higher pressure tube service

P235GH

EN non-alloy steel for elevated temperature pressure vessels and pipe.

Best for · Elevated temperature pressure service

P265GH

EN non-alloy steel with higher yield for elevated temperature pressure equipment.

Best for · Higher-duty pressure vessels

P355N

Normalized fine-grain EN carbon-manganese steel for pressure vessels.

Best for · Normalized pressure vessel service

P355NH

Elevated-temperature variant of P355 for pressure applications.

Best for · Elevated temperature pressure vessels

Compliance

Standards & certificates

Specifications and documentation typically referenced for this product line — details from our shared compliance catalog.

Standards

7
  • ASME B16.9

    ASME

    Factory-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

    MSS

    Wrought 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

    MSS

    High-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

    MSS

    Integrally 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

    MSS

    Swage(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 A105

    ASTM

    Carbon steel forgings for piping applications.

    Scope
    Forged carbon steel piping components for ambient and higher-temperature service.
    Applies To
    Flanges, fittings, valves and similar parts
    Typical Grades
    A105 / A105N
  • ASTM A694

    ASTM

    Carbon and alloy steel forgings for pipe flanges, fittings, valves and parts for high-pressure transmission service.

    Scope
    High-strength carbon steel forgings for pipeline transmission flanges and fittings.
    Applies To
    Flanges and forged fittings for high-pressure gas/oil transmission

Certificates

5
  • EN 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 Carbon Steel Swage Nipples — the same craftsmanship photos from our plant archives, shown in webp.

2 photos

Carbon Steel Swage Nipples manufacturing 1
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Carbon Steel Swage Nipples manufacturing 2
02

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.

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