Butt weld Pipe Fittings

Alloy Steel F91 Flanges Manufacturer

ANSI B16.5 Alloy Steel F91 Flange, Alloy Steel F91 Pipe Flanges, Chrome Moly F91 Flanges, Alloy Steel F91 Flanges, 1.4903 Plate Flanges, UNS K90901 Flanges Supplier in Mumbai, India.

Alloy Steel F91 Forged Flanges, ASME SA 182 Alloy Steel F91 Lap Joint Flanges, Alloy Steel F91 Socket weld Flanges Stockist, Chrome Moly F91 Long Weld Neck Flanges, Alloy Steel F91 Weld Neck Flanges, ASTM A182 Chrmoe Moly F91 Blind Flanges, Alloy Steel F91 RTJ Flanges, Alloy Steel F91 Slip on Flanges, Alloy Steel F91 Orifice Flanges Exporter in India.

Simplex Steel Industries is one of the prominent manufacturers, supplier, and exporter of these Alloy Steel ASTM A182 F91 Flanges. We are serving our clients with the best quality of the product. We are offering these products in different dimensions, length, and specifications. We are also fulfilling the demand and requirements of our clients by providing customized as well as non-customized forms. We are manufacturing these Alloy Steel ASTM A182 F91 Flanges with the combination of purest metals such as Manganese, Molybdenum, Chromium, and Nickel. With the presence of these metals, it shows an excellent feature such as it can generally use in high-pressure as well as high or low temperatures applications. Our manufactured products show some unique features and benefits to our customers. Such features are sturdiness, high tensile strength, anti-corrosive, corrosion/ oxidation/ stress corrosion cracking/ crevice corrosion resistance, good dimensional accuracy, durability, and longevity, and many more.

We, Simplex Steel Industries, is manufacturing these Alloy Steel ASTM A182 F91 Flanges with superior quality of raw materials that are analyzed by our expert team members. Our expert team members are very well trained and have vast experience in the manufacturing field. They are giving their full potential to make the best quality of products that will serve our customers in every prevailing condition. We, Simplex Steel Industries, are always following the international and national standards and specifications for maintaining the quality standards of these Alloy Steel ASTM A182 F91 Flanges. We are always giving priority to our client’s needs and requirements and working accordingly to satisfy their needs.

Our expert team members are supervising the whole manufacturing process strictly to check the flow of the production. Right from the selection of material till the final dispatch of products, our team strictly supervise. They are performing several tests using the latest tools and techniques and then sending the manufactured Flanges for further process. We pack these Flanges by using the proper packing material. By choosing the fastest shipping ways, we ensure quick and on-time delivery of orders. We satisfy the needs of our esteem clients by offering excellent Flanges at reasonable rates.

Value Added Services

  • Sand Blasting
  • Electro Polish
  • Epoxy Coating


  • High tensile strength
  • Good load bearing capacity
  • Excellent versatility and weldability


  • Hardness Test
  • Tensile Test
  • Intergranular Corrosion Test

ASTM A182 Alloy Steel F91 Flanges Stock

Alloy Steel F91 Pipe Flanges Specification

Standards ASTM, ASME
Designation A182, SA182
Dimension Standard ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standards ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc.
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Size 1/2" (15 NB) to 48" (1200NB)
Class Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

ASME SA 182 Alloy Steel F91 Pipe Flanges Equivalent Grades

Alloy Steel F91 K90901 1.4903

Alloy Steel F91 Flanges Chemical Composition

Grade C Mn P s Si Ni Ch Mo Cb
F91 0.08-0.12 0.30-0.60 0.020 0.010 0.20-0.50 0.40 8.0-9.5 0.85-1.05 0.06-0.10

Alloy steel F91 Flanges Mechanical Properties

Grade Tensile Strength (Mpa) Yield Strength (Mpa) Elongation % Hardness
Rockwell B (HR B) max Brinell (HB) max
F91 585 415 20 - 248 max

Other Types of Alloy steel F91 Flanges

  • Alloy Steel F91 Flanges
  • UNS K90901 Flanges
  • Alloy Steel F91 Pipe Flanges
  • 1.4903 Plate Flanges
  • Alloy Steel F91 Flanges Stockholder in India
  • ANSI B16.5 Alloy Steel F91 Flange
  • Alloy Steel F91 Slip on Flanges
  • Alloy Steel F91 Welding Neck Flanges
  • Alloy Steel F91 Long Weld Neck Flanges
  • Alloy Steel F91 Forged Flanges
  • Chrome Moly F91 Socket weld Flanges Stockist
  • CrMo F91 Orifice Flanges
  • Alloy Steel F91 Flanges Supplier in Mumbai
  • Chrome Moly F91 Flanges Manufacturer in India
  • Alloy Steel F91 Lap Joint Flanges
  • Alloy Steel F91 RTJ Flanges
  • Alloy Steel F91 Blind Flanges
  • CrMo F91 Ring Type Joint Flanges
  • Alloy Steel F91 Spectacle Blind Flanges
  • Alloy Steel F91 Square Flanges
  • Cr-Mo F91 Pipe Flange Stockist in Mumbai, India
  • ASME SA 182 Alloy Steel F91 Threaded Flanges
  • Alloy Steel F91 Flat Flanges
  • Alloy Steel F91 Reducing Flanges
  • Alloy Steel F91 Plate Flanges
  • Alloy Steel F91 SORF Flanges
Application Industry

We have huge experience of supplying to all major industries across the world. These Flanges is use in various industries like : Petrochemical, Pulp And Paper Co, Oil and Gas, Chemical Industry, Food Processing Industry, Plumbing, Water Supply Systems, Power Plant, General Purpose Applications, Fabrication Industry etc

Central/South America, North America, Asia, Mid East/Africa, Eastern Europe, UAE

Sri Lanka, Bahrain, Russia, Egypt, Portugal, Turkey, Spain, Singapore, Brazil, Thailand, Chile, Malaysia, Venezuela, Indonesia, Costa Rica, Poland, USA, U.A.E, Italy, Oman, Canada, Saudi Arabia, Angola, Qatar