Duplex Steel S31803S32205 Flanges

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Duplex Steel S31803S32205 Flanges Specification

Feature
High Strength, Corrosion Resistant, Excellent Weldability

Grade
S31803 / S32205

Dimension (L*W*H)
As per standard or custom requirements

Purity
High

Application
Oil & Gas, Petrochemical, Power Plant, Chemical Industry, Water Treatment, Marine Engineering

Product Type
Flange

Material
Duplex Steel S31803/S32205

Standard
ASTM A182 / ASME SA182

Shape
Round

Surface
Shot Blasted / Machined

Connection
Welded / Bolted

Technics
Forged

Pressure
150# to 2500# (PN6 PN400)

Size
1/2 to 24 (DN15 to DN600)

Color
Natural / Silver

About Duplex Steel S31803S32205 Flanges

What Are Specification Duplex Steel S31803/S32205 Flanges?

Specifications :	ASTM A182 / ASME SA182
Dimensions :	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Size :	1/8" NB TO 24" NB
Class / Pressure :	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type :	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Grades :	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Equivalent material Of Duplex Steel S31803/S32205 Flanges?

STANDARD	UNS	WERKSTOFF NR.
Duplex S31803	S31803	1.4462
Duplex S32205	S32205	1.4462

Chemical Composition Of Duplex Steel S31803/S32205 Flanges?

S31803 / S32205	C	N	P	Si	Mn	Mo	Fe	Cr	S	Ni
S31803 / S32205	1.0	0.03	0.02	2.0	3.0 - 3.5	22.0 - 23.0	0.03	4.5 - 6.5	0.14 - 0.2	Bal

Mechanical Properties Of Duplex Steel S31803/S32205 Flanges?

S31803 / S32205	Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
S31803 / S32205	7.8 g/cm3	1350 °C (2460 °F)	Psi - 80000 , MPa - 550	Psi - 116000 , MPa - 800	15 %

Optimal Material for Challenging Environments

Duplex Steel S31803/S32205 flanges are engineered for demanding applications where both high strength and resistance to harsh corrosive environments are essential. Their microstructure provides excellent durability, especially under exposure to chlorides, making them preferred choices for industries like oil & gas, water treatment, and marine engineering.

Manufacturing Excellence and Precise Engineering

These flanges are produced through hot forging, stringent heat treatment, and precision machining. This meticulous process ensures each product meets the rigorous international standards such as ASTM A182 and ASME SA182 while providing reliable performance in high-pressure and high-temperature conditions.

Versatile Connections and Standards Compliance

Available with Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) end connections, the flanges fit a wide range of piping systems and pressure classes. Compliance with global standards like ANSI, DIN, and JIS ensures seamless integration in diverse projects and industries across the globe.

FAQs of Duplex Steel S31803S32205 Flanges:

Q: How are Duplex Steel S31803/S32205 flanges manufactured?

A: These flanges are manufactured using a combination of hot forging, heat treatment, and precision machining. This process enhances their mechanical properties, such as strength and durability, while meeting the required standards and specifications for industrial use.

Q: What industries commonly use Duplex Steel S31803/S32205 flanges?

A: These flanges are widely used in oil & gas, petrochemical, power plants, chemical processing, water treatment, and marine engineering due to their high strength, corrosion resistance, and suitability for harsh environments.

Q: When should I choose Duplex Steel S31803/S32205 flanges over standard stainless steel flanges?

A: Duplex Steel flanges are ideal when your application demands superior resistance to chloride stress corrosion and greater mechanical strength, especially under higher pressures and temperatures ranging from -50C to +300C.

Q: Where can these Duplex steel flanges be installed?

A: They can be installed in piping systems within refineries, offshore platforms, water treatment facilities, and chemical plantsessentially any setting where durability and resilience to corrosive elements are required.

Q: What benefits do Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) end connections provide?

A: These end connections offer flexibility to suit different sealing and pressure requirements, ensuring secure and leak-free joints in a wide range of industrial fluid systems.

Q: How does the corrosion resistance of these flanges enhance operational life?

A: With excellent resistance to chloride-induced stress corrosion, these flanges greatly reduce the risk of premature failure, ensuring longevity and reducing maintenance needs in aggressive environments.

Q: What packaging options are available for shipping these flanges?

A: For safe transportation, flanges are securely packed in plywood cases or pallets, protecting them from mechanical damage and corrosion during transit.

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