ASTM A182 F51 Duplex 2205 S31803 forged rings forged discs
We are a professional manufacturer of ASTM A182 F51 Duplex 2205 S31803 forged rings forged discs in China.
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ASTM A182 F51 is a forging material specification,grade F51 Duplex stainless steel is used for manufacturing bare forgings or forged and machined products
F51/Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.
Forged rings are metal rings that are made from a forging process. Forging is a manufacturing process that shapes metal by hammering, pressing, or rolling hot metal while it is in a molten state.
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
ASTM A182 F51 forged rings are made from duplex stainless steel, offering high strength, excellent corrosion resistance, and superior mechanical properties. These rings are widely used in offshore, marine, chemical, and oil & gas industries, where resistance to chloride stress corrosion and pitting is essential.
| A182 F51 Flange Chemical Composition Limits | |||||||||
| Weight% | C | Mn | P | S | Si | Cr | Ni | Mo | N |
| Duplex F51 | 0.03 max | 2.0 max | 0.03 max | 0.02 max | 1 max | 21-23 | 4.5-6.5 | 2.5-3.5 | 0.80-0.20 |
ASTM A182 F51 Mechanical & Chemical Properties
| Property | Value |
|---|---|
| Tensile Strength | 620 MPa (90 ksi) min |
| Yield Strength | 450 MPa (65 ksi) min |
| Elongation | 25% min |
| Hardness (Brinell) | 293 max |
Applications of ASTM A182 F51 Forged Rings
Oil & Gas Industry – Used in pipelines, subsea equipment, and offshore platforms.
Chemical & Petrochemical Plants – Ideal for corrosive environments.
Marine & Shipbuilding – High resistance to seawater corrosion.
Heat Exchangers & Pressure Vessels – Ensures long-lasting performance in extreme conditions.
Pumps & Valves Components – Provides strength and durability in fluid-handling systems.
We supply high-quality duplex stainless steel forged rings in various sizes and specifications with fast delivery worldwide.
