Stainless Steel Flange Manufacturers in India – Low Price! Buy High Quality Stainless Steel Flanges at Factory Prices! Low Price Guaranteed! We Will Quote for Stainless Steel Flanges in 2 Hours with Mill Test Certificates! Stainless Steel Flanges Available on Sale, by India’s Largest Stockholder and Manufacturer in Size Range of 1/2″ NB to 60″ NB. The most common materials in stock and regularly bought by our customers in stainless steel are ASTM A182 F304, F304L, F316L, F310S and F321H flanges. In addition to being the lowest cost supplier of flanges, buttweld pipe fittings, forged pipe fittings and stainless steel flanges we are also one of the biggest carbon steel and stainless steel seamless pipes stockist, dealer and distributor in India. We are Manufacturers of Various Types of Stainless Steel Flanges in India – Stainless Steel Slip On Flanges (SORF Flanges), Stainless Steel Weldneck Flanges (WN Flanges), Stainless Steel Blind Flanges (BLRF Flange), Stainless Steel Socket Weld Flanges, Stainless Steel Orifice Flanges, Stainless Steel High Hub Flanges, Stainless Steel Square Flanges, Stainless Steel Lap Joint Flanges, Stainless Steel Loose Flanges, Stainless Steel Flat Flanges/Plate Flanges, Stainless Steel Ring Type Joint Flanges (RTJ Flanges), Stainless Steel Threaded Flanges, Stainless Steel Expander Flanges, Stainless Steel Spectacle Flange. Please contact us for any further question or inquiry regarding stainless steel flanges. We will promptly reply to you and offer you a reasonable price – Metallica is one of the largest stainless steel flanges manufacturer in India, with related gaskets, nuts and bolts. We are large volume stainless steel flanges manufacturers in India and overseas, and are able to give you the best price and quality just in time. All standard size and type in stainless steel flanges are available Ex-stock, and we can offer immediate delivery and inspection for all our goods.

Stainless Steel Flange Manufacturer, Wholesaler, Dealer, Supplier and Distributor In India and Abroad
  • As one of the largest manufacturer of stainless steel flanges, we have over 6000 tons in stock

  • Stainless Steel Flanges Available at around Rs. 80/KG for Sale in India.

  • Our Annual Sales Volume for Stainless Steel Flanges is Over 25,000 tons in India and Overseas.

  • Stainless Steel Pipes, are Sold with Complete Range of Related Pipe Fittings and Flanges

  • On-Time Delivery with Quality Assurance and Price Guarantee for Steel Flanges

Types of Stainless Steel Flanges

Threaded Flange NipoFlange
Socket-Weld Flange ElbowFlange and LatroFlange
Welding Neck Flange Swivel Flange
Slip-On Flange Expanding Flange
Lap Joint Flange Reducing Flange
Blind Flange Anchor Flanges
Long Weld Neck Flanges High Hub Flanges
Plate Flanges Orifice Flanges
Ring Type Joint Flanges Spectacle Blind Flanges
Square Flanges Spades & Ring Spacers

Production & Supply Range for Stainless Steel Flanges

Product Stainless Steel Flanges
Product Specification ASTM/ASME A182 F304, A182 F304L, A182 F304H, A182 F316, A182 F316L, A182 F316H, A182 F317, A182 F317L, A182 F321, A182 F321H, A182 F347, A182 F51, A182 F53
Types of Flanges Anchor Flanges, Blind Flanges, Expander Flanges, High Hub Flanges, Lap Joint Flanges, Long Weld Neck Flanges, Orifice Flanges, Plate Flanges, Ring Type Joint Flanges, Reducing Flanges, Slip On Flanges, Socket Weld Flanges, Spectacle Blind Flanges, Square Flanges, Spades & Ring Spacers, Threaded Flanges, Welding Neck Flanges
Flange Materials Stainless Steel, Carbon Steel, Alloy Steel, Nickel Alloys, Aluminium, Copper Nickel
Size Range 1/2”- 60”(or as per customer drawing)
Pressure Ratings 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64
Dimensional Specifications ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Surface Finish Sand Blast, Black Painting, Galvanizing Finish
Production Technique Forged, Heat Treated, CNC Machined, Drilled
Test Certificates Test Certificates are available with materials, as per EN 10204 3.1 or 3.2
Inspection Buyer Inspection or Third Party Inspection Acceptable. At Metallica, all fittings and flanges are subject to strict inspection at each stage of the production process, starting from raw material purchasing to product dispatch.
Packing Wooden Pallets, Gunny Bags, Wooden Box, or As per Customer Request
Price and Quality Guarantee 100% Price and Quality Guarantee
Delivery 100% On Time Delivery, 2-3 Days for In Stock Items, 15-30 Days for Volume Products

Types of Flange Connections

  1. Flange Face Type
  2. Flange Dimensions
  3. Flange Finish
  4. Types of Connections
  5. Pressure Temperature Ratings
  6. Material Types

ASME, ANSI and MSS Specifications

The standards govern the dimensions and tolerances to which fitting are manufactured:

  • ASTM A.182 – Forged or Rolled Alloy Steel Pipe Flanges & Fittings for high temperature service
  • ANSI B. 16.5 – Steel Pipe Flanges and Flanged Fittings (½ inch to 24 inch nominal diameter)
  • MSS SP.6 – Flange Facings
  • MSS SP.25 – Marking of flanges
  • MSS SP.39 – Bolts and Nuts for Flanges
  • MSS SP.44 – Large Diameter Pipeline Flanges. (Over 24 inch dia)
  • API-605 – Large Diameter Flanges for petroleum Usage. (Over 24 inch dia)
  • The following are not flange specifications but they influence the manufacture of forged steel flange:  • ANSI B. 31.10 – Code for Pressure Piping
      • ANSI B. 31.3 – Petroleum Refinery Piping
      • ANSI B. 31.4 – Oil Transportation Piping
      • ANSI B. 31.5 – Refrigeration Piping Systems
      • ANSI B. 31.7 – Nuclear Power Piping
      • ANSI B. 31.8 – Gas Transmission and Distribution Piping systems
      • ANSI B. 36.10 – Standard for Wrought Steel pipe
      • ANSI B. 36.19 – Standard for Stainless Steel Pipe
      • ANSI B. 16.10 – Valve Dimensions Face & End
      • ANSI B. 16.11 – Forged Fittings Socket Weld & Threaded

Advantages of Flanges Specifications

  • A new line can contain multiple pipe spools and can be manufactured in a workshop.
  • This pipe spools can be assembled in the plant without the need to be welded.
  • NDO (X-ray, Hydro test etc.) in the plant is not necessary, because this has been done in the workshop.
  • Blasting and painting in the plant is not necessary, because even this has been done in a workshop
    (only paint damages during installation should be repaired).

Disadvantages of Flanges Specifications

  1. Each flange connection can leak (some people claim that a flange connection is never 100 percent leak proof). Special controls are required in the selection and application of all these elements to attain a joint, which has acceptable leak tightness. However, it is not advisable to used flange connection in underground piping when it supposed to be buried. The flange is also the most common source of leak and fire in a process plant.
  2. Flanged pipe systems need much more space (just think of a pipe rack).
  3. Insulation of flanged pipe systems is more expensive (special flange caps).

Chemical Composition Of Stainless Steel Flange

Flanges ASTM A182
Grade C Mn P S Si Ni Cr Mo
F304 0.08 2 0.045 0.03 1 8 – 11 18 – 20
F304L 0.03 2 0.045 0.03 1 8 – 13 18 – 20
F316L 0.03 2 0.045 0.03 1 10 – 15 16 – 18 2 – 3
Grades F304, F304L, and F316L shall have a maximum Nitrogen content of 0.10%.

What are the Various Grades of Stainless Steel, Metallica Deals in?

As one of the biggest stainless steel suppliers in India, we stock and supply all major grades of stainless steel.
Austenitic Stainless Steels
301 High strength for roll formed structural components
304, 304L, 304H Standard 18/8 grades
310, 310S, 310H High temperature resistant grades
316, 316L, 316H Improved resistance to pitting corrosion in chloride environments
321, 321H, 347 Stabilized grades for heavy section welding and high temperature applications
904L High resistance to general corrosion, pitting and stress corrosion cracking
Ferritic Stainless Steels
409 Automotive exhaust grade – weld stabilized
430, 430F Resistant to mildly corrosive environments
439 Resistant to mildly corrosive environments – weld stabilized
444 A ferritic alternative to grade 316 / 316L – weld stabilized
Duplex Stainless Steels
2101 Lean duplex – economical alternative to 304 and 316
2304 Duplex alternative to grade 316
2205 Standard duplex stainless steel – high resistance to pitting and stress corrosion
2507 Super duplex with very high resistance to pitting and stress corrosion
Martensitic Stainless Steels
410 Standard martensitic grade for low-duty hardened applications
416 Free-machining bar grade
420 Higher hardness martensitic grade for cutlery, cutting tools and dies
431 High hardness and toughness grade, primarily for shafting
440A, 440B, 440C Very high hardness grades used in cutting tools
Precipitation Hardening Stainless Steel
630 (17-4PH) High strength shafting grade

What are the Maximum Operating Temperatures of Stainless Steel Grades?

Stainless steels have good strength and good resistance to corrosion and oxidation at elevated temperatures. Stainless steels are used at temperatures up to 1700° F for 304 and 316 and up to 2000 F for the high temperature stainless grade 309(S) and up to 2100° F for 310(S).

Maximum Operating Temperatures of Stainless Steel Grades

[Image Source: From Web]

What is the Impact of Various Alloying Elements on the Properties of Stainless Steel?

Element Effect on Stainless Steel
Chromium Forms a passive film with oxygen that prevent the further diffusion of oxygen into the surface
Composition needs to contain at least 10.5% to be a stainless steel
Nickel Increases ductility and toughness. Increase corrosion resistance to acids
Additon creates non-magnetic structure
Molybdenum Increases pitting and crevice corrosin resistance. Increase resistance to chlorides
Copper Increase corrosion resistance to sulfuric acid
Manganese Substitute for nickel (200 series)
Titanium/Niobium Ties up carbon and prevents inter-granular corrosion in welded zone of ferritic grades
Nitrogen Increase strength and corrosion resistance in austenitic and duplex grades
Silicon Improves resistance to high temperature scaling
Sulfur Usually kept low excet for “free-machining” grades
Carbon Usually kept low.  Used in martensitic grades to increase strength and hardness

Over 10000 Tons in Stock for Stainless Steel Flanges!

ISMT & Jindal Steel Pipes Dealers, Original MTR's Provided with All Materials

As one of the biggest stainless steel flanges stockholder and supplier in India, Metallica carries inventory of over 10,000 tons in its warehouses in Mumbai, Maharashtra India. We sell our stainless steel pipe products throughout India, and to international clients. We can supply our stainless steel tube products not only in industry-standard lengths and diameters, but also in custom length and diameters.

How are Steel Pipes Certified?

Certification of Steel Pipes

Manufacturers issue a Material Test Report or Mill Test Report to validate that the product meets the chemical analysis and mechanical properties specification. The MTR will contain all relevant data to the product and will accompany the product through its lifecycle.

The following are typical parameters that may be recorded on an MTR:

  • Chemical composition including carbon content, alloys, and sulfur
  • Material size, weight, identification, and grade
  • Material heat number, which ties back to the processing batch
  • Mechanical properties like tensile strength, yield strength, and elongation

At Metallica, we will Provide you with Original MTR’s for all Stainless Steel Pipe Products! We will Send Our Test Certificates, along with Quotation