Duplex Steel Seamless Pipes /Welded Pipes

ASTM A 789 / A 790 Duplex Steel Pipes & Tubes Manufacturer, Exporter & Suppliers, Duplex Steel Seamless Pipes & Tubes, Duplex Steel Welded Pipes & Tubes, ERW Pipes Suppliers in china.

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Duplex pipes combine austenitic and ferritic stainless steel nano-grains, giving them superior strength and corrosion resistance compared to regular carbon steel pipes. Their high strength-to-weight ratio makes them an ideal choice for applications requiring low weight with added strength. At the same time, their corrosion protection also keeps them viable in highly corrosive environments. Duplex pipes are also resistant to localized corrosion, such as pitting and crevice attack, making them preferred over carbon steel properties. Additionally, duplex pipes have good weldability; they can be processed into tight radius bends without any loss of mechanical properties or corrosion resistance. This makes duplex pipes suitable for use not only in onshore/offshore pipelines but also in many industrial applications where higher levels of reliability are necessary.

Duplex Stainless Steel Pipe Grades

Grade 2205: 2205 Duplex Stainless Steel Pipe is the most common duplex stainless steel grade, known for its excellent corrosion resistance and high strength.

Grade 2507: Known as a super duplex, it offers superior corrosion resistance and strength, suitable for harsh environments.

Grade 2304: A lean duplex grade that provides good performance at a lower cost.

Duplex Pipe Specification

Specifications	ASTM A928 / ASME SA 928 ASTM A999 / ASME SA 999 astm a790 duplex 2205, SA 789 alloy 2205, a790 gr 2205 ASTM A790 / ASME SA 790
Pipe Thickness	0.3mm - 50 mm
Pipe Standard	EN, ASTM, ASME AISI, GB, JIS, DIN Duplex 2205 Pipe Supplier
Duplex 2205 Seamless Pipe Outer Diameter	Sizes up to 12” NB/ 6.00 - 250 mm OD
Duplex 2205 Welded Pipe size	5.0 to 1219.2 mm
Duplex 2205 Welded Tube Size	6.35 - 152 mm OD
Duplex 2205 EFW Pipe size	5.0 - 1219.2 mm
Duplex 2205 tubing wall thickness	0.0020" to 0.0220" (custom wall thicknesses available)
Duplex 2205 Seamless Tube Size	15 NB - 150 NB IN/ 3.35 To 101.6 mm OD,
Duplex 2205 Pipe & Tube Finish	AP (Annealed & Pickled), Polished, MF, BA (Bright & Annealed), NO.4, NO.1, BA, 2B, 8K, HL, Mirror finish,etc
Pipe & Tube Swg & Bwg	12 Swg., 10 Swg., 16 Swg., 14 Swg., 20 Swg, 18 Swg.
Duplex 2205 Pipe Schedule	SCH10, SCH 5, SCH 80, SCH 40, , SCH 160, SCH 80S, SCH XS, SCH XXS
Duplex 2205 Pipe & Tube Form	Hydraulic, Round, Rectangular, Hollow, Pan Cake Coils, Square, Coiled, “U” Shape, Straight Pipes etc.
Duplex 2205 Pipe & Tube Length	Standard & Cut length, Single and Double Random,
Duplex 2205 Pipe & Tube Type	Duplex 2205 ERW/ Seamless / Welded / EFW / CDW /Fabricated / CEW/ DOM Pipe
Pipe Value Added Service	as per required Size & Length Draw & Expansion , Pickled Bending and Polish (Electro & Commercial) Annealed, Machining Etc.
Duplex 2205 Tube Application	Oil Tube, Boiler and Heatexchanger, Gas Tube, Fluid Tube
Duplex 2205 Pipe & Tube End	Beveled End, Plain End, Treaded Pipe.
Pipe Marking	marked as follows All Duplex 2205 Pipes : Standard, Grade, Thickness, OD, Heat No. (Or according to the customer’s request.), Length
Material Test Certificates (MTC)	100% Radiography Test Report, Raw Materials Certificate Material Test Certificates (MTC) as per EN 10204 3.1, EN 10204/3.1B and EN 10204 3.2 Manufacturer Test Certificate Form A for Generapzed System of Preferences (GSP) Fumigation Certificates Third Party Inspection Report Heat Treatment Charts Duplex 2205 Tubes HS Code Commercial Invoice Laboratory Test Certificate from Govt. Approved Lab.
Specialized in	Duplex 2205 Heat Exchanger & Condenser Tubes Duplex 2205 Capillary Tube & Other Odd Size Large Diameter Duplex 2205 Pipe