Overview of Duplex S31803 Pipe Fittings
Duplex S31803 is a type of alloy that features a ferritic-austenitic microstructure. In its annealed state, the alloy comprises ferrite. The duplex grade is renowned for its high strength, similar to ferritic grades, and corrosion resistance, similar to austenitic steel. Due to its austenite and ferrite phases, the alloy exhibits properties characteristic of both types of steel.
Composition of Duplex S31803 Pipe Fittings
The fittings comprise Nickel, Iron, Copper, Chromium, Silicon, Manganese, and Nickel alloys. These alloys have excellent weldability and low-temperature toughness, making them ideal for this application.
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Properties of Duplex S31803 Pipe Fittings
Duplex S31803 pipe fittings are highly resistant to stress chloride corrosion cracking. They perform exceptionally well in sulfide environments and at high temperatures, up to 300°C, where increased chloride offers protection against corrosion. The fittings also exhibit better flexibility at low temperatures than ferrite grade. They provide superior resistance to chloride pitting and crevice corrosion and outstanding corrosion resistance to seawater and most concentrations of sulphuric acid. Additionally, they are resistant to sulfide stress corrosion cracking and sour-gas environments.
Applications of Duplex S31803 Pipe Fittings
Duplex S31803 pipe fittings, including Duplex Steel S32205 instrumentation valves, are highly versatile and widely used in various applications. They are commonly employed in seawater systems, pumps, valves, chemical process vessels, piping, heat exchangers, and FGD scrubber systems. Additionally Duplex Steel S31803 Instrumentation valves used in pulp mill digesters, bleach washers, food process equipment, and oil field piping, among others.
Kalp Industries is a reputable manufacturer, supplier, and Duplex S31803 Pipe Fittings exporter. With years of experience in the industry, we have been providing our clients with high-quality products. Our fittings come in various shapes, sizes, dimensions, and thicknesses to meet your specific requirements. They exhibit exceptional strength even at very high temperatures, and we can customize our Duplex Steel S31803 Tubing them according to your needs.
|Specifications||ASTM A815 / ASME SA815|
|Dimensions||ASME/ANSI B16.9, ASME B16.28, MSS-SP-43|
|Size||1/2” NB to 24″NB in|
|Type||Seamless / Welded / Fabricated|
|Thickness||Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS etc.|
|Duplex Steel S31803||1.4462||S31803|
|All Fittings||90°and 45° Ells and Tees||Reducers and Lap Joint Stub||Caps||180° Returns||Angularity Tol|
|Nominal Pipe Plane Size (NPS)||Outside(1) Diameter at Bevel||Inside(1) Diameter at End||Wall(2) Thickness||Centre-to- End Dimension A,B,C,M||Overall Length L||Overall Length E||Centre-to- Centre Dimension O||Back-to- Face Dimension K||Alignment at Ends U||Nominal Pipe SIze||Off Angle Q||Off Angle P|
|1/2 TO 2-1/2||+1/16||±1/32||Not less than 87-1/2% of Normal Thickness||±1/16||±1/16||±1/8||±1/4||±1/4||±1/32||12 to 4||1/32||1/16|
|-1/32||5 to 8||1/16||1/8|
|3 TO 3-1/2||±1/16||±1/16||±1/16||±1/16||±1/8||±1/4||±1/4||±1/32||10 to 12||3/32||3/16|
|4||±1/16||±1/16||±1/16||±1/16||±1/8||±1/4||±1/4||±1/32||14 to 16||3/32||1/4|
|5 TO 8||+1/32||±1/16||±1/16||±1/16||±1/4||±1/4||±1/4||±1/32||18 to 24||1/8||3/8|
|10 TO 18||+1/16||±1/8||±3/32||±3/32||±1/4||±3/8||±1/4||±1/16||All dimensions are in inches|
|20 TO 24||+1/4||±3/32||±3/32||±3/32||±1/4||±3/8||±1/4||±1/16|
|S31803||0.030 max||2.00 max||1.00 max||0.030 max||0.020 max||22.0 – 23.0||3.0 – 3.5||4.50 – 6.50||0.14 – 0.20||63.72 min|
|Grades||Density (g/cm 3)||Density (lb/in 3)||Melting Point (°C)||Melting Point (°F)|
|S31803||7.805||0.285||1420 – 1465||2588 – 2669|
We Serve Application Industry
Fastener applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
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