Duplex 2304 Stainless Steel Sheet/Plate

Grade: 201/304/316L/310S/ 2205 and so on
Surface:  No.4
Standard: ASTM A240
Thickness: 0.076mm-28mm
Origin: POSCO, TISCO,BAOSTEEL

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Duplex 2304 Stainless Steel Sheet/Plate

Duplex 2304 is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel.It has general corrosion resistance similar or better than Alloys 304L and 316L but with yield strength nearly double that of austenitic stainless steels. Its duplex microstructure and low nickel and high chromium contents also allows Duplex 2304 to demonstrate improved stress corrosion resistant properties compared to 304 and 316. It is typically suitable for all applications in the -58oF to 572oF (-50oC to 300oC) temperature range and is designed to feature high mechanical strength, good weldability, good corrosion resistance, high resistance to stress corrosion cracking, good machinability, low thermal expansion, good fatigue properties, high thermal conductivity, and easy fabrication.

Applications:

  • Welded pipe systems within the Pulp and Paper, Chemical and Petrochemical, and Water Treatment industries
  • Transportations
  • Heat exchanger tubes
  • Architecture, building, construction
  • Pressure vessels
  • Caustic solutions, organic acids

Corrosion Resistance:

  • Due to its high chromium content of 23%, the corrosion resistance properties of Duplex 2304 are practically equivalent to those of Alloy 316L
  • Its duplex microstructure and low nickel and high chromium contents allows Duplex 2304 to have improved stress corrosion resistance properties compared to the 304L and 316L standard austenitic grades.
  • More resistant to pitting and crevice corrosion resistance that Alloy 316L
  • Outperforms Alloys 304L and 316L in stress corrosion cracking resistance in chloride containing aqueous solutions
  • Its corrosion rate in boiling nitric acid (65%) is higher than that of Alloy 316L
  • Its high yield strength allows Duplex 2304 to perform well in abrasion/corrosion applications

Structure

  • Microstructure of Duplex 2304 is very stable compared to molybdenum containing duplex stainless steels
  • Contains approximately equal amounts of ferritic and austenitic in microstructure after annealing in a temperature about

Chemical Composition

Grade C Cr Mn Si P S Ni Cu N Fe
Duplex 2304

0.03

max

min: 21.5

max:24.5

2.5

max

1.0

max

0.04

max

0.03

max

min:3.0 max:3.5 min:0.05

max: 2.0

min: 0.05

max: 2.0

Bal.

Mechanical Properties

Grade

Tensile Strength ksi (MPa)

min

Yield Strength 0.2% offset ksi (MPa)

min

Elongation (% in 50mm) min

Hardness (Brinell)

MAX

Duplex 2304

87

(600)

58

(400)

25 293

 

Value-added Service

Every industry has its unique set of stainless steel coil specifications and needs. We offer many Value Added Services to meet your needs from cut-to-length to hard-to-find materials and special requirements. With over 13 years in the business, our team is professional at finding out solutions to fit your needs.

stainless-steel-production-line5

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Stainless Steel Coil/Sheet Beveling We can cut and bevel the edges of stainless steel coil/sheet to prepare forwelding or other processing.
Stainless SteelCoil/Sheet Grinding We can provide grinding service of stainless steel steel coil/sheetin order to satisfy customers’ flatness requests.
Stainless SteelCoil/Sheet Polishing Our stainless steel steel coil/sheetcan be polished to a #4 polish, #6 polish,#7polish, or a #8 mirror finish. It can also be polished on one side or two sides.
Stainless SteelCoil/Sheet Perforating Our perforated stainless steel steel coil/sheetcomes in a selection of holeshapes, pattern sizes, gauges and grades. It has endless applications such asenclosures,partitions, sign panels, guards, screens, and more.
Stainless SteelCoil/Sheet Laser Cutting Our technologically advanced laser machines provide us with an efficient, high speed and cost effective form of profiling steel coil/sheetwhich ensures a superior clean cut and oxide free finish.
Stainless SteelCoil/Sheet Water Jet Cutting We offer stainless steel steel coil/sheetdynamic Waterjet cutting in order to process complex part geometry.
Stainless SteelCoil/Sheet Embossing Our stainless steel embossed patterns including basket embossed pattern,diamond pattern or square pattern.
Stainless Steel Coil/Sheetdecorating We offer various decorative stainless steel steel coil/sheet, such as stainless steel mirror steel coil/sheet, stainless steel hairline steel coil/sheet,color coated stainless steel coil/sheet, etched stainless steel steel coil/sheet, vibration finish stainless steel steel coil/sheet, bead blast finish stainless steel steel coil/sheet, stain brush finish stainless steel steel coil/sheet, and more.
Stainless SteelCoil/Sheet Heatreating & Annealing We can heatreat 410 and 17-4PH stainless steel plate to change mechanical properties. In some cases, secondary annealing 300 series might be required depending on the application.

Logistics&Packing

Our stainless steel products are packed and labeled according to the regulations and customers requests.

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