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Nickel Alloy Forging Ring Duplex Stainless Steel S31803 Forging Ring 2205 Forgings
Duplex Stainless Steel S31803 is a type of duplex stainless steel that combines the beneficial properties of both austenitic and ferritic stainless steels. This material is known for its excellent corrosion resistance, high strength, and good weldability, making it suitable for a wide range of applications in aggressive environments, such as chemical processing, oil and gas, and marine industries.
Chemical Composition:
The chemical composition of S31803 typically includes:
Chromium (Cr): 21.0% - 23.0%
Nickel (Ni): 4.5% - 6.5%
Molybdenum (Mo): 2.5% - 3.5%
Nitrogen (N): 0.08% - 0.20%
Manganese (Mn): ≤ 2.0%
Silicon (Si): ≤ 1.0%
Carbon (C): ≤ 0.03%
Phosphorus (P): ≤ 0.03%
Sulfur (S): ≤ 0.02%
Iron (Fe): Balance
Mechanical Properties:
Tensile Strength: ≥ 620 MPa
Yield Strength: ≥ 450 MPa
Elongation: ≥ 25%
Hardness: ≤ 290 HB
Forging Process:
The forging process for S31803 involves heating the material to a temperature range of 1100°C to 1200°C (2012°F to 2192°F) and then shaping it into a ring using a forging press or hammer. The process typically includes the following steps:
Heating: The billet or ingot is heated uniformly to the forging temperature.
Preforming: The heated material is preformed into a rough shape.
Forging: The preformed material is forged into the final ring shape using dies.
Heat Treatment: The forged ring is subjected to a solution annealing treatment at 1020°C to 1100°C (1868°F to 2012°F) followed by rapid cooling to achieve the desired microstructure and properties.
Machining: The forged ring is machined to the final dimensions and surface finish.
Applications:
Duplex Stainless Steel S31803 forging rings are used in various applications, including:
Pressure vessels
Heat exchangers
Pumps and valves
Flanges and fittings
Offshore oil and gas equipment
Chemical processing equipment
Advantages:
High corrosion resistance, especially in chloride-containing environments
Excellent mechanical properties, including high strength and toughness
Good weldability and formability
Resistance to stress corrosion cracking
Standards:
ASTM A182/A182M: Standard specification for forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service.
ASTM A479/A479M: Standard specification for stainless steel bars and shapes for use in boilers and other pressure vessels.
EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections, and bright products of corrosion-resistant steels for general purposes.
Duplex Stainless Steel S31803 forging rings are highly durable components that offer a combination of strength, corrosion resistance, and versatility, making them ideal for demanding industrial applications.
Production Process:
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1998
Total Annual:
70 million-100 million
Employee Number:
50~60
Ecer Certification：
Verified Supplier
Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.
We have complete advanced technology facilities to produc... Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.
We have complete advanced technology facilities to produc...
