DUPLEX STEEL 2205 PIPE | UNS S31803 PIPE

Duplex Steel 2205 Pipes are a type of stainless steel pipe made from a duplex stainless steel alloy. Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of both austenitic and ferritic stainless steel. The alloy for Duplex 2205 is typically composed of 22% chromium, 5% nickel, 3% molybdenum, and other elements. This composition gives these pipes high strength and excellent corrosion resistance, particularly to stress corrosion cracking.

Standard Specification For Duplex Steel S31803 Pipes

The standard specifications for Duplex Steel S31803 Pipes include:

• ASTM/ASME: ASTM A790 / ASME SA790
• Dimensions: ASTM, ASME, and API
• Pipe Size: 1/2″NB TO 12 “NB IN
• Seamless Pipes & Tubes Sizes: 1/2” NB – 8” NB
• Welded Pipes & Tubes Sizes: 6” NB – 24” NB
• Outer Diameter: 6.0-630mm
• Thickness: 0.5-45mm
• Schedule: SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
• Type: Seamless / ERW / Welded / Fabricated / LSAW Pipes
• Form: Round, Square, Rectangular, Hydraulic Etc
• End: Plain End, Beveled End, Treaded

2205 Duplex Steel Pipes Equivalent Grades

Duplex Steel 2205 is also known by its UNS (Unified Numbering System) designation S31803 or S32205, where S32205 is a modified version with slightly higher nitrogen content. The most common equivalent grades are:

• UNS: S31803/S32205
• EN: 1.4462
• WNR: 1.4462

ASTM A790 Duplex Steel S31803 Pipes Types

There are several types of Duplex Steel S31803 Pipes, including:

• Seamless Pipes
• Welded Pipes
• ERW Pipes
• Fabricated Pipes
• LSAW Pipes

Chemical Composition of Duplex Steel 2205 Pipes

The chemical composition of Duplex Steel 2205 typically includes:

• Cr: 22.0-23.0%
• Ni: 4.5-6.5%
• Mo: 3.0-3.5%
• Mn: 2.0% max
• Si: 1.0% max
• N: 0.14-0.20%
• P: 0.030% max
• S: 0.020% max
• Fe: Balance

Mechanical Properties of DSS S31803 Pipes

The mechanical properties of Duplex Steel S31803 Pipes are:

• Tensile Strength: 620 MPa min
• Yield Strength (0.2%Offset): 450 MPa min
• Elongation: 25% min
• Hardness: (Brinell) 293 max

Other Types of 2205 & S31803 Duplex Steel Pipes Ready Stock

Manufacturers and suppliers may offer a variety of other types of 2205 and S31803 Duplex Steel Pipes, including but not limited to:

• Duplex Steel 2205 Seamless Pipes
• Duplex Steel S31803 Welded Pipes
• Duplex 2205 ERW Pipes
• Duplex S31803 EFW Pipes
• Duplex Steel 2205 Rectangular Pipes
• Duplex S31803 High Precision Pipes

ASME SA790 S31803 Duplex Steel Pipes Applications

Duplex Steel S31803 Pipes are used in a wide range of applications due to their high strength and corrosion resistance, including:

• Oil and gas exploration and processing equipment
• Piping and heat exchangers in chemical processing
• Flue gas desulfurization equipment
• Pulp and paper industry machinery
• Seawater handling systems
• High chloride environments

Searches Related to Duplex Steel 2205 Pipes

• Duplex Steel 2205 Pipes for high-pressure systems
• S31803 Duplex Stainless Steel Pipes for corrosion resistance
• Duplex Steel 2205 Pipe price per meter
• Duplex Steel S31803 Pipe manufacturers
• S31803 Duplex Steel Pipe weight chart

Export Destinations for Duplex Steel S31803 Pipes

Duplex Steel S31803 Pipes are exported worldwide for their versatile applications in various industries. Common export destinations include:

• USA
• Canada
• UAE
• Saudi Arabia
• India
• Europe
• Australia

Please note thatthe information provided here is a general overview and should be verified with current standards, specifications, and supplier data sheets for accuracy, as changes may have occurred since my last update in September 2021.