ASTM A182 Gr F91

High tensile strength, anti-corrosive, corrosive corrosion resistance, and stress corrosion cracking are all characteristics of A182 F91 Alloy Steel Flanges.
F91 Alloy Steel Pipe Flanges are well suited for high-pressure and high-temperature applications because they have better corrosion resistance than normal carbon grade steel flanges.

A182 F91 Class 2 Flange is strong, tough, and very ductile, making it long-lasting and durable. It has strong oxidation resistance and scaling resistance in aqueous media.
Chrome Moly Alloy A182 F91 Flanges are suited for high-temperature situations. As a result, it is beneficial in any industry or application where equipment operates at high temperatures.

F91 A182 Blind Flanges are installed between two open flanges to halt the passage of water via a pipe. This form of blockade is frequently utilised while installing a new valve or connecting additional line to an existing pipeline.

A182 F91 Cl2 Lap Joint Flanges are available in standard dimensions, just like other types of flanges, making them simple to utilise with other piping components or to integrate into existing piping systems.
ASTM A182 Gr F91 Flange is frequently used in conjunction with or is primarily matched with ASTM A335 alloy steel pipes.

ASTM A182 Grade F91 Flange is available in customised and standard flanges that meet various international product quality standards for services at high temperatures.

AS A182 F91 1cr-1/2mo AS Flanges are used to seal off a line. Its composition includes carbon, silicon, manganese, chromium, phosphorus, and molybdenum.

A182 Gr F91 Threaded flanges are frequently utilised for small diameter, high pressure applications. It has a hub with published specifications ranging from 1/2′′ to 24′′. It is appropriate for pipework with tiny diameters.

SA 182 Gr F91 Socket Weld Flanges are often available with flat, raised, or RTJ facing. When a raised face is required for SA 182 Gr F91 socket weld pipe flanges under 400#, the normal height is 1/16″.
Slip On Flanges ASME SA 182 Gr F91 are mostly used for fluids under low pressure or with a low risk of leakage.


Flanges SA 182 F91 Specification

ASTM Specifications ASTM A182 and ASME SA182
Dimensions Chart ANSI/ASME B16.5, BS4504, BS 10, B 16.47 Series A & B, B16.48, EN-1092, DIN, etc.
Standard Flanges ANSI, ASME, BS, DIN, EN Flange, etc.
Size inch 1/2 inch to 36 inch
Class / Pressure Rating 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64
Type of Flange Face Flate, Raised Face, Ring Type Joint

ASTM A182 F91 Flange Chemical Properties


Grade C Mn Si P S Cr Mo
Alloy Steel F91 0.15 max 0.3-0.6 0.5-1.0 0.03 0.03 8-10 0.9-1.1

SA 182 F91 SORF Flanges Mechanical Analysis

Tensile Strength Yield Strength (0.2%Offset) Elongation
380 585 20 %

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