ASTM A240 / ASME SA240 UNS S32205 Duplex Stainless Steel Plate

ZYTC Alloy supplies ASTM A240 UNS S32205 duplex stainless steel plate, sheet & coil. High strength & chloride corrosion resistance for marine, chemical, oil & gas industrial projects.

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ASTM A240 / ASME SA240 UNS S32205 Duplex Stainless Steel Plate (also known as 2205 duplex plate, F60 plate, 1.4462 sheet) is the most widely‑used duplex stainless steel material. It features a dual‑phase microstructure with roughly equal proportions of ferrite and austenite phases, combining high mechanical strength and outstanding corrosion‑resistant performance. Alloying elements including chromium, molybdenum, nickel and nitrogen endow UNS S32205 with superior resistance to chloride‑induced corrosion compared with conventional 304 / 316 austenitic stainless steel.

As a reliable Chinese duplex stainless steel supplier, ZYTC Alloy supplies ASTM A240 / ASME SA240 compliant UNS S32205 products including plate, sheet, coil and strip. Available in solution‑annealed condition, our duplex steel materials serve harsh‑environment projects for marine, chemical processing, oil‑gas and pulp‑paper industries globally, with complete material test documentation and custom processing support.

Standard & Grade Cross‑Reference

Designation:UNS S32205 (2205 Duplex Steel, F51)
European Equivalent: 1.4462
Main Standard: ASTM A240 / ASME SA240
Product Forms: Plate, sheet, coil, strip

Chemical Composition (ASTM A240 / ASME SA240, wt%)

Element	Composition (wt %)
Carbon (C)	≤ 0.03
Manganese (Mn)	≤ 2.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.03
Sulfur (S)	≤ 0.02
Chromium (Cr)	22.0‑23.0
Nickel (Ni)	4.5‑6.5
Molybdenum (Mo)	3.0‑3.5
Nitrogen (N)	0.14‑0.20
Iron (Fe)	Balance

Chromium forms protective passive film; molybdenum and nitrogen greatly improve pitting & crevice corrosion resistance under chloride‑rich conditions; nickel stabilizes austenite phase for balanced toughness; nitrogen further boosts mechanical strength and local corrosion performance.

Mechanical Properties (Solution‑Annealed per ASTM A240)

Property	Metric Requirement (Min)	Imperial Requirement (Min)
Tensile Strength	655 MPa	95 ksi
0.2% Offset Yield Strength	450 MPa	65 ksi
Elongation (50 mm gauge length)	25 %	25 %
Maximum Brinell Hardness	293 HBW	‑
Maximum Rockwell C Hardness	‑	31 HRC

The yield strength of UNS S32205 is nearly twice that of ordinary 316L stainless steel, allowing designers to adopt thinner plate thickness for structural weight reduction while maintaining structural safety.

Key Material Characteristics

Excellent resistance to chloride‑ion stress‑corrosion cracking (SCC)
Outstanding pitting and crevice corrosion resistance in chloride‑containing environments
Good general corrosion resistance in mixed corrosive media
Superior sulfide stress corrosion resistance for sour‑service conditions
High mechanical strength, reducing plate thickness for structural components
Good weldability and workability for cutting, forming and welding fabrication

Typical Size & Available Product Range from ZYTC Alloy

Product Forms: Hot‑rolled plate, cold‑rolled sheet, coil, slit strip
Thickness: 0.5 mm – 100 mm
Width: 1000 mm – 2500 mm
Length: 2000 mm – 12000 mm, custom cut‑to‑length available
Surface Finish: No.1 hot‑rolled pickled, 2B, No.4, hairline, mirror finish
Delivery Condition: Solution‑annealed & pickled

Applications

Thanks to the dual‑phase metallurgical advantages, ASTM A240 UNS S32205 duplex stainless steel plate is widely deployed in challenging corrosive‑service industries:

Chemical Processing: Pressure vessels, process piping, heat exchangers, reaction equipment components
Pulp & Paper Industry: Digester vessels, bleach washers, chip pre‑steaming equipment
Food Processing: Corrosion‑resistant food manufacturing equipment
Oil & Gas: Sour‑service field piping, heat exchanger assemblies
Flue‑gas Desulfurization: FGD scrubber inner plates and waste‑gas treatment components
Marine & Offshore: Seawater‑exposed structural plates, offshore facility parts, salt‑atmosphere equipment

Quality Assurance & Inspection Options

All ZYTC Alloy UNS S32205 duplex stainless steel plates comply fully with ASTM A240 / ASME SA240 specification. Each batch can be supplied with following documents and inspections upon request:

EN 10204 3.1 Material Test Certificate
Chemical composition and mechanical property test reports
Dimensional inspection & surface quality examination
PMI positive material identification test
Ultrasonic testing for internal plate defects
Third‑party inspection support
Full batch traceability documentation

Why Source UNS S32205 Plate from ZYTC Alloy

Strict compliance with ASTM A240 / ASME SA240 standard, stable duplex phase balance
Comprehensive stock range for plate, sheet, coil and strip; support small‑batch custom cutting & slitting
Rigorous quality control for chemical, mechanical and surface performance
Professional technical support for material selection and project specification matching
Export‑standard packaging, complete certification for global industrial procurement

Get Your Quotation

Contact ZYTC Alloy for UNS S32205 duplex stainless steel plate datasheet, stock availability and factory quotation. Please provide thickness, dimension, quantity, surface finish, certificate requirements and end‑use application for precise offer.

Email: daisy@zytcsteel.com
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