gnee pipe team
F51 Flange (UNS S31803): This grade is also known as 2205 duplex stainless steel flange. It has good corrosion resistance and high strength bonding. The F51 is widely used in various industries, including chemical processing, oil and gas, and offshore engineering.
F53 Flange (UNS S32750): This grade is also known as 2507 duplex stainless steel flange. It has higher chromium and molybdenum content than F51, providing enhanced corrosion resistance. F53 is particularly suitable for applications in corrosive environments, such as those containing chlorides.
F55 Flange (UNS S32760): This grade is also known as 1.4501 or Zeron 100. It has higher corrosion resistance and mechanical strength compared to F51 and F53. F55 is commonly used in applications requiring excellent corrosion resistance in acidic and chloride-containing environments.
| STM A182 /ASME SA182 | Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service | ||||
| Ferritic-Austenitic Stainless steel | F 50 | F 51 | F 52 | F 53 | F 54 |
| F 55 | F 56 | F 57 | F 58 | F 59 | |
| F60 | F61 | F65 | F65 | F67 | |
| Product Form | |||||
| ASME B16.5 | Size:1/2"-24" Wall thickness:SCH5S-SCHXXS Class:150-1500# | ||||
| ASME B16.47 | Size:26"-48" Wall thickness:SCH5S-SCHXXS Class:150-1500# | ||||
| ASME B16.48 | Size:1/2"-24" Wall thickness:SCH5S-SCHXXS Class:150-1500# | ||||
| MSS SP-44 | Size:12"-60" Wall thickness:SCH5S-SCHXXS Class:150-1500# | ||||
Duplex Steel F51 F53 F55 Flange
Chemical Composition (Typical):
F51: 22% chromium, 5-6% nickel, 3% molybdenum, 0.2% nitrogen.
F53: 25% chromium, 7% nickel, 4% molybdenum, 0.3% nitrogen.
F55: 25% chromium, 7% nickel, 3.5% molybdenum, 0.25% nitrogen, 0.7% tungsten.
Types of Flanges: ASTM A182 F51, F53, and F55 flanges are available in various types, including Weld Neck, Slip-On, Blind, Socket Weld, Lap Joint, and Threaded flanges.
Pressure Ratings: The flanges are designed to different pressure classes such as 150, 300, 600, 900, 1500, and 2500.
Sizes: The flanges are available in various sizes, typically ranging from 1/2" to 48" or larger.
GNEE Additional value-added services
UT(Ultrasonic examination)
AR(As Hot Rolled only)
TMCP (Thermal Mechanical Control Processing)
N(Normalized)
Gnee product certificate
Gnee Company Team
Gnee Group participated in the NECC exhibition
Gnee Customer visit
Gnee Factory environment
Gnee Packaging and shipping
Hot Tags: duplex steel a182 f51 f53 f55 flange, China duplex steel a182 f51 f53 f55 flange manufacturers, suppliers, factory
