ASTM A182 F11 Flange,A182 F11 Weld neck Flange,A182 F11 slip on Flange,A182 F11 Blind Flange

We are a professional manufacturer of steel forged chome moly steel A182 F11 flange in China, A182 F11 Blind flange,A182 F11 weld neck flange,ANSI B16.5 A182 F11 Slip on Flange, Chrome Moly Alloy Steel Flange,A182 F11 Cl2 Flange，

As an experienced A182 F11 flange manufacturer in China,we produce high quality A182 F11 forged flanges.

A182 F11 Chrome moly alloy flanges offer improved levels of chromiumand molybdenum. The added chromium helps increase the steel’s hardenability and corrosion resistance, whereas the increased molybdenum helps bolster itstoughness and corrosion resistance. 

ASTM A182 F11 flanges are extremely ductile, strong and tough and easy to weld and offer oxidation and scaling resistance.which matches with ASTM A335  Gr P11 alloy steel pipes ,A234 WP11 Pipe fittings

A182 F11

also known as  (13CrMo4-5) 1 1/4 Chrome 1/2 Mo Flanges ,1.25 chrome 0.5 moly ,which is a chromium-molybdenum based low alloy-steel grade. It is characterized by 1 to 1.5% chromium – an average of 1%, hence the numerical nomenclature. All of our material is supplied in F11 Class 2 (CL 2), although we can also supply Class 1 or Class 3 upon request.

In some cases,A182 F11  Flange also can be used as an equivalent grade to 16Mo3 Flange

ASTM A182 F11 Flange specification

Dimensions : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc.

Flange type:Weld neck flange, Slip on Flange,Blind Flange,socket weld flanges.

Standards : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.

Size : 1/8″ NB TO 60″NB.

Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

ASTM A182 standard

Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

The starting material of the ASTM A182 Gr. F11 Cl. 2 flange shall be low-alloy ferritic steels made by the open-hearth, electric-furnace, or basic-oxygen process with the option of separate degassing and refining processes in each case. The material shall be forged as close as practicable to the specified flange shape and size. After hot forging, the flange sahll be cooled to a temperature below 538°C [1000°F] prior to heat treating. ASME B16.5 or ASME B16.47 flanges made of ASTM A182 Gr. F11 Cl. 2 steels shall be furnished in normalizing and tempering condition only. The minimum austenitizing temperature is 900°C [1650°F]. The normalizing requires air cooling, which is followed by tempering with minimum tempering temperature of 620°C [1150°F].

ASTM A182/A182M  F11 Hardness requirement

NACE MR01-75 specifies 237 maximum brinell hardness for A182 F11

ASTM A182/A182M F11 heat Treatment

Heat Treatment;anneal, normalized and temper (NT). Normalizing :900℃, air cool or furnace cool,Tempering : 620℃

How to order our A182 F11 Flanges？

Example#1, ASME B16.5 WNRF Flange, ASTM A182 F11 Class 2, 1 Inch, CL600

Example#2, ASME B16.5 Weld neck Flange, Raise face,ASTM A182 F11 Class 2, 6 Inch, CL600

Example#3, ASME B16.5 blind Flange RF, ASTM A182 F11 , 6 Inch, CL300