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Alloy Steel flanges




Alloy Steel RTJ Flange Supplier in Mumbai, Alloy Steel Spacer Flange Stockists, Distributors of Alloy Steel Blind Flanges, Alloy Steel Threaded Flanges Exporter, Alloy Steel Raised Face Weld Neck Flanges, Alloy Steel Forged Flanges Manufacturer, Alloy Steel Industrial Flanges Stockists, Alloy Steel Flanges, Alloy Steel Slip On Flange, Alloy Steel SWRF Flanges, Alloy Steel Pipe Flanges, Alloy Steel Flanges manufacturers in India



Vishal Tube Industries is one of the leading Manufacturer of Alloy Steel flanges in india, We are ISO Certified and best quality product Exporter of Alloy Steel Pipe Flanges in india. There are few specific rules for selecting Alloy Steel Flanges' through-hardening or surface-hardening grades, where critical parts are field tested to determine their performance in most cases. When high strength is required in moderate-to-large sections where tungsten and vanadium form carbides, both of which improve the hardness and stability of the finished product, Alloy Steel Flanges are often specified. Heavy forgings, parts with large pieces, are mostly made from vacuum degassed Alloy Steel Long Weld Neck Flanges. These Alloy Steel Lap Joint Flanges are exposed to a vacuum that eliminates hydrogen and, to a lesser degree, oxygen and nitrogen when in a molten state. Our Alloy Steel Blind Flanges are mainly caused by environmental factors such as wind exposure, industrial pollution and elevated temperatures, and are worse close to the sea, a major cause of salt water pollution.


Solution annealing of our Alloy Steel Slip On Flanges is not needed because the as-built state's mechanical properties show desired values. An exception to this is that these Alloy Steel Ring Joint Flanges have approximately 24 percent chromium and can be used to withstand scaling at temperatures up to 1100 degrees C. For example, increased material strength is provided by the inclusion of molybdenum in the alloy steel plate flanges. Adding nickel gives the alloy hardness. Similarly, the addition of chromium to chromium moly flanges helps to improve other mechanical properties, such as temperature strength, hardness and resistance to corrosion. In addition to these elements, trace amounts of both manganese and silicon, other typical alloy components, offer excellent deoxidizing capabilities for the alloy steel threaded flanges.

Alloy Steel Flanges Specifications

Specifications Alloy Steel Flanges - ASTM A182 / ASME SA182
ASME B16.5 Alloy Steel Flanges size range 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Alloy Steel Flanges Standards BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges.
Alloy Steel Flanges Standard ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Alloy Steel Flanges Standard DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Alloy Steel Flanges Standard JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Alloy Steel Flanges Standard UNI 6Bar 10Bar 16Bar 25Bar 40Bar
Alloy Steel Flanges Standard EN 6Bar 10Bar 16Bar 25Bar 40Bar
Main Types Forged / Threaded / Screwed / Plate
Flange supporting material Gasket, Ring Joint, Flange Bolts
Alloy Steel Pipe Flanges Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Most common types of Alloy Steel Flanges
  • Socket Weld Ring Flange (SWRF), Alloy Steel Flanges
  • Threaded Ring Flange, Alloy Steel Flanges
  • Lap Joint Ring Flange (LJRF), Alloy Steel Flanges
  • Ring Type Joint Flange (RTJF), Alloy Steel Flanges
  • Weld Neck Ring Flange (WNRF), Alloy Steel Flanges
  • Slip-On Ring Flange (SORF), Alloy Steel Flanges
  • Blind Ring Flange (BLRF), Alloy Steel Flanges
Production technique
  • Forged, Heat treated and machined
Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations

Alloy Steel Flanges Threaded Flanges, Socketweld Flanges, Slip-On Flanges, Blind Flanges, Weld Neck Flanges
Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Origin Indian / West Europe / Japan / USA / Korean
Specialized manufacturer of
  • DIN 2566 pn16
  • DIN 2566 en 1092 1
  • DIN 2566 pn10
  • Rtj Flanges
  • Pn16 Flanges
  • Alloy Steel Socketweld Flanges
  • Alloy Steel Plate Flanges
  • Alloy Steel Lap Joint Flanges
  • Alloy Steel Loose Flanges
  • Alloy Steel Orifice Flanges
  • Alloy Steel AS 4087 Water Flanges
  • Alloy Steel Large Diameter Flanges
  • Alloy Steel Sorf Flanges
  • Alloy Steel Blind Flanges
  • Alloy Steel Table Flanges
  • Alloy Steel Weld Neck Flanges
  • Alloy Steel Threaded Flanges
  • Alloy Steel Slip-On Flanges
Alloy Steel Flanges Standard

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • Any other specilised flanges
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203;UNI2276
Key markets and industries for Alloy Steel Flanges
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Export to Thailand, Singapore, Canada, Iran, Spain, USA, Ukraine, Oman, Indonesia, India, Korea, Brazil, Ireland, Dubai, Egypt, Peru, Saudi Arabia etc
Alloy Steel Flanges Application
  • To Connect Pipe & Tubes in Chemical, Construction, Petroleum, Shipbuilding Metallurgy, Gas, Power etc
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Dimensions of Alloy Steel flanges



Advantages flanges

  •  Ventilation facility pipeline
  •  Solar energy facility
  •  Chemical industrial pipeline
  •  Water supply facility
  •  Food and Nourishment Industrial Pipeline
  •  Agriculture and garden production transporting system

Uses & Application


Chemical Oil Mills Petrochemical Mining
Fertilizers Shipbuilding Power Plant Steel Plant
Oil & Gas Defence Paper Ports
Cement Engineering Co. Sugar Government Org. etc.

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Why choose us for Alloy Steel flanges

  •  On-Time Delivery Every Time
  •  Competitive Prices
  •  High Quality Product
  •  Quick Response by Email & by Phone
  •  An ISO 9001:2008 Certified Company