Nascent Fittings Inc.·Alloy Steel

Alloy Steel Flanges

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.

Alloy Steel Flanges
Material
Alloy Steel
Grades
F1, F5, F9 +
Corrosion
Moderate

About

Alloy Steel Flanges

Product overview combined with Alloy 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

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. We, Nascentfit Piping Stainless Steel Flanges Manufacturers in India. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal.

Typical applications

  • Power Generation
  • Thermal Power Plants
  • Refineries
  • Petrochemical Plants
  • Oil & Gas
  • Pressure Vessels

Technical data

Specifications

Specifications

FlangesSpecification
Type of FlangesWeld Neck, Socket Weld, Slip-on, Blind, Screwed/Threaded, Long Weld Neck, Lap Joint, Spectacle Blind
Size15NB To 1200NB, ANSI B 16.5
Class150#, 300#, 600#, 900#, 1500#, 2500#
Stainless SteelASTM A182 F-304/304H/304L/316/316H/316/316Ti, 309, 310, 317L, 321, 347, 904L
Duplex and Super-Duplex SteelASTM A 182-F51, F53, F55
NickelASTM B 564 N02200, N02201
InconelASTM B 564 N06600, N06601, N06617, ASTM B 564 N07718, ASTM B 564 N06625
IncoloyASTM B 564 N08800, N08810, ASTM B 564 N08825, ASTM B 564 N08020
HastelloyASTM B 564 N10276, N06022, ASTM B 564 N10665, ASTM B 564 N06455
Titanium-CommerciallyASTM B 861, 862, 338 Gr.1 R 56250(CP4)
Titanium-PureGr.2 R 50400(CP3) Gr.3 R 50550(CP2) Gr.4 R 50700(CP1) Gr.7 R 52400 Gr.11 R 52250
Titanium-AlloysASTM B 861, 862, 338 Gr.5 R 56400(6AI-4V) Gr.23 R 56401(6AI-4V-ELI) Gr.12 R 53400
Cupro NickelASTM B 171 C70600(90:10), ASTM B 171 C71500(70:30)
MonelASTM B 564 N04400 DIN N05500
Carbon SteelASTM A 234 WPB, IS 1239 PART II
Alloys SteelASTM A 234 WPB WP5, WP9, WP11, WP12, WP91
Low Temp. CSASTM A-420 WPL6
Other ServiceHot Dip Galvanizing, Sand Blasting
Test CertificateManufacturer Test Certification En 3.1 and 3.2, IBR Test Certificate
Specializing In:Large Diameter CS Pipes and Duplex SteelInconel®, Incoloy®, Monel®, Hastelloy®, Duplex® are Registered Trade Marks of their Respective Owners.

Alloy Steel grades

Available grades for Flanges

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

F1

Low alloy steel with improved temperature resistance.

Best for · Moderate temperature service

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

F22

2.25% chromium and 1% molybdenum alloy steel.

Best for · High temperature pressure systems

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

Compliance

Standards & certificates

Specifications and documentation support typically referenced for this product line.

Standards

14
  1. 01ASME A182
  2. 02DIN Flanges
  3. 03ANSI B 16.5
  4. 04ASTM A182
  5. 05ASTM A 182-F51
  6. 06ASTM B 564
  7. 07ASTM B 861
  8. 08ASTM B 171
  9. 09ASTM A 234
  10. 10ASTM A-420
  11. 11En 3
  12. 12IS 1239 PART II
  13. 13DIN N05500
  14. 14ASME SA182

Certificates

5
  • EN 10204 3.1
  • ISO 9001
  • PED
  • IBR
  • NACE MR0175

Manufacturing

Crafted with care

Workshop and production views for Alloy Steel Flanges — the same craftsmanship photos from our plant archives, shown in webp.

4 photos

Alloy Steel Flanges manufacturing 1
01
Alloy Steel Flanges manufacturing 2
02
Alloy Steel Flanges manufacturing 3
03
Alloy Steel Flanges manufacturing 4
04

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.

Need pricing for Alloy Steel Flanges?

Share sizes, material grade and quantity — manufacturing options and delivery timelines follow.

Get a quote