Duplex Steel UNS S31803

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Duplex steel is called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel. The picture shows the yellow austenitic phase as “islands” surrounded by the blue ferritic phase. When duplex stainless steel is melted it solidifies from the liquid phase to a completely ferritic structure. As the material cools to room temperature, about half of the ferritic grains transform to austenitic grains (“islands”). The result is a microstructure of roughly 50% austenite and 50% ferrite

Buttweld Fittings

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Specifications
Grades : ASTM / ASME SA 815 UNS S31803, S32205, S32550, S32750, S32760

Forged Fittings

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Specifications
Size : 1/2"NB TO 4"NB IN
Class : 3000 LBS, 6000 LBS, 9000 LBS
Type : Socket Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT
Form : 45 Deg Elbow, 90 Deg Elbow, Tee, Cross, Union, Half & Full Coupling, Cap, Boss, Plug, Barrel & Swage Nipple & Customized Fittings.
MATERIALS : Duplex Steel Socket Weld Fittings – Duplex steel Socket Weld Fittings ASTM A 182 – F 51, F53, F55

Flanges

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Specifications
Duplex Steel Weld Neck Flanges:
Size : 1/2"NB TO 24 "NB IN
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc.
SPECIFICATIONS AS PER THE INTERNATIONAL STANDARD ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE
MATERIALS : Duplex Steel Weld Neck Flanges – Duplex Steel WNRF Flanges ASTM A 182 – F 51 UNS S31803, S32750, S31500

Outlet Fittings

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Specifications
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.

Pipes & Tubes

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Specifications
Duplex Steel Seamless Pipe :
Size : 1/2"NB TO 12 "NB IN
Schedule : SCH20, SCH30, SCH40, STD, SCH80
Type : Welded / Fabricated / Seamless
Length : Single Random, Double Random & Cut Length.
End : Plain End, Beveled End.
MATERIALS : Duplex Steel Seamless Pipe – Duplex SS Seamless Pipe ASTM A790 UNS S31803, S32205, S32750, S32760

Sheets & Plates

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Specifications
Range : 5 mm To 100 mm thick in 1000 mm TO 2500 mm width & 2500 mm to 12500 mm Length available with NACE MR 01-75.
Types : Sheet, Plates, Coils, Flat, Strips, Profile, Blank ,Circle, Ring etc.
MATERIALS : Duplex Steel Sheets & Plates UNS S31803, S32205, S32750, S32760


Bars & Rods

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Specifications
Duplex Steel Bar:
Range : 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length.
Finish : Bright Black Polish
Form : Round Square Hex (A/F) Bush Rectangle Flat
Duplex Steel Bar
ASTM A276 UNS S31803, S32205, S32750, S32760

904L Wire

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Specifications
Range : 5 mm To 100 mm thick in 1000 mm TO 2500 mm width & 2500 mm to 12500 mm Length available with NACE MR 01-75.
Types : Sheet, Plates, Coils, Flat, Strips, Profile, Blank ,Circle, Ring etc.
MATERIALS : Duplex Steel Wire UNS S31803, S32205, S32750, S32760