Nascent Fittings Inc.·Carbon Steel

Carbon Steel SLIPON FLANGE

Weld neck, slip-on, blind, socket weld & lap joint flanges in SS, CS, alloy, duplex & nickel. ASME B16.5/B16.47, Class 150–2500, MTCs & export.

Carbon Steel SLIPON FLANGE
Material
Carbon Steel
Grades
ASTM A234 WPB
Corrosion
Moderate

About

Carbon Steel Flanges

Product overview combined with Carbon Steel material context for project selection.

Our integrated facilities include facilities for cutting, forging, ring rolling and machines with CNC lathes, CNC drilling, high capacity forging press and mobile manipulator for making big diameter forged round bars. We also have an in-house heat treatment shop and well equipped laboratory facilities for ensuring the quality of our products.

Manufacturing note

Nascent fittings INC is a leading Manufacturer and Exporter of high-quality Slip on Flanges that are required while disassembling a pipe joint. Slip-on flanges are very common and are available in a large range of sizes to accommodate systems with higher flow rates and throughout. Simply match the flange to the outer diameter of the pipe you intend to connect. Installation is slightly more technical as you’ll need fillet weld both sides to secure the flange to the pipe. A slip-on flange is connected to the pipe or the fittings by two fillet welds, one executed inside and one outside the cavity of the flange. The bore size of a slip-on flange is larger than the outside diameter of the connecting pipe, as the pipe has to slide inside the flange to be connected by the execution of a fillet weld. Slip-on flanges are also defined as “Hubbed Flanges” and they are easy to recognize due to their slim and compact shape. Slip-on Flanges are available in a variety of materials, including Alloy Steel, Carbon Steel, LTCS, Nickel, Monel, Inconel, Hastelloy, Aluminium, Copper & Nickel, Stainless Steel etc.

Typical applications

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

Carbon Steel grades

Available grades for Flanges

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

Compliance

Standards & certificates

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

Standards

12
  • ASTM A182

    ASTM

    Forged 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
  • DIN Standard

    DIN

    German Institute for Standardization piping / material norms.

    Scope
    Collective reference for DIN dimensional and material standards used on export and EU projects.
    Applies To
    Flanges, fittings and materials when DIN designation is specified
  • ASME B16.5

    ASME

    Pipe flanges and flanged fittings through NPS 24.

    Scope
    Pressure-temperature ratings, materials, dimensions, tolerances, marking and testing for pipe flanges and flanged fittings.
    Applies To
    Weld neck, slip-on, blind, socket weld, threaded, lap joint and reducing flanges
    Size Coverage
    NPS ½ through 24
    Class Range
    Class 150 to 2500
  • ASTM B564

    ASTM

    Nickel alloy forgings.

    Scope
    Forged nickel alloy flanges, fittings and similar parts.
    Applies To
    Forged flanges and fittings in nickel alloys
  • ASTM B861

    ASTM

    Titanium and titanium alloy seamless pipe.

    Scope
    Seamless titanium pipe for corrosive and high-performance service.
    Applies To
    Titanium process piping
  • ASTM B171

    ASTM

    Copper alloy plate and sheet for pressure vessels, condensers and heat exchangers.

    Scope
    Copper and copper-alloy plate for heat-transfer and pressure use.
    Applies To
    Tube sheets, plates and exchanger components
  • ASTM A234

    ASTM

    Piping fittings of wrought carbon steel and alloy steel for moderate and high temperature service.

    Scope
    Seamless and welded wrought carbon and alloy steel fittings.
    Applies To
    Buttweld elbows, tees, reducers, caps and related forms
    Typical Grades
    WPB, WP5, WP9, WP11, WP22, WP91
  • ASTM A420

    ASTM

    Piping fittings of wrought carbon steel and alloy steel for low-temperature service.

    Scope
    Wrought fittings suitable for low-temperature pressure piping.
    Applies To
    Buttweld fittings for cryogenic / LT service
    Typical Grades
    WPL6
  • EN

    CEN

    European Norms for materials, flanges and fittings.

    Scope
    Umbrella reference for EN material and flange standards.
    Applies To
    EU-specified piping materials and PN flanges
  • IS 1239 Part II

    BIS

    Mild steel tubes, tubulars and other wrought steel fittings — fittings.

    Scope
    Indian Standard covering wrought steel pipe fittings.
    Applies To
    MS / GI fittings commonly used in Indian utility piping
  • 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 SLIPON FLANGE — the same craftsmanship photos from our plant archives, shown in webp.

4 photos

Carbon Steel SLIPON FLANGE manufacturing 1
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Carbon Steel SLIPON FLANGE manufacturing 2
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Carbon Steel SLIPON FLANGE manufacturing 3
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Carbon Steel SLIPON FLANGE manufacturing 4
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People also ask

Questions about Flanges

Nascent Fittings Inc. answers common buyer questions for this line.

Does Nascent Fittings Inc. manufacture Flanges?+

Yes. Nascent Fittings Inc. manufactures and supplies Flanges for industrial piping projects, with material grades and sizes aligned to project specifications.

Can Nascent Fittings Inc. export Flanges worldwide?+

Yes. We export Flanges globally with standard export packaging, material test certificates, and documentation support for international shipments.

What materials are available for Flanges?+

Flanges 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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