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Quality High Strength Duplex Stainless Steel Tube Corrosion Resistance factory
Quality High Strength Duplex Stainless Steel Tube Corrosion Resistance factory
Quality High Strength Duplex Stainless Steel Tube Corrosion Resistance factory
Quality High Strength Duplex Stainless Steel Tube Corrosion Resistance factory

High Strength Duplex Stainless Steel Tube Corrosion Resistance

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
Model Number: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
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Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

High Strength Duplex Stainless Steel Tube
Product Summary
Duplex stainless steel sheet is a family of stainless steel grades with a mixed austenitic-ferritic microstructure (approximately 50% austenite / 50% ferrite). This unique structure delivers approximately twice the yield strength of standard austenitic grades like 304 or 316, combined with excellent ...

Product Details

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High Strength Duplex Stainless Steel Tube

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Duplex Stainless Steel Tube Corrosion Resistance
Country Of Origin: MADE IN CHAINA
Brand: Baosteel，TISCO
Certifications: ISO/EN 10204 Type 3.1 / 3.2 Available
Grade: 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH)
MOQ: 100kg
Price: Negotiable (Request A Quote)
Packaging: Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time: 15-25days
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Capacity: 10000tons
Product Description

Duplex stainless steel sheet is a family of stainless steel grades with a mixed austenitic-ferritic microstructure (approximately 50% austenite / 50% ferrite). This unique structure delivers approximately twice the yield strength of standard austenitic grades like 304 or 316, combined with excellent resistance to chloride stress corrosion cracking (SCC), pitting, and crevice corrosion.

Duplex stainless steel sheets are the material of choice for demanding applications in offshore platforms, chemical processing, desalination plants, oil & gas exploration, and marine engineering, where both strength and corrosion resistance are critical.

Key Features
Feature Description
Microstructure Austenitic + Ferritic (≈50/50)
Yield Strength ≥550 MPa for Super Duplex (~2× 316L)
Corrosion Resistance Excellent against SCC, pitting, and crevice corrosion
Weldability Good, with proper procedures
Temperature Range Up to 280°C for continuous service
PREN (Super Duplex) ≥40 – ≥42
Duplex Grades Comparison
Grade UNS Type Yield Strength (min) PREN Key Application
2304 S32304 Lean Duplex ≥400 MPa ~25 Cost-effective alternative to 304/316
2205 S32205 Standard Duplex ≥450 MPa ~35 Most widely used: structural & pressure vessels
2507 S32750 Super Duplex ≥550 MPa ≥42 Extreme environments; subsea, high chloride
Specifications & Size Range
Parameter Range
Thickness 0.3 mm – 200 mm
Width 100 mm – 3500 mm
Length 2000 mm – 12000 mm (custom available)
Standard ASTM A240 / A480, ASME SA240, EN 10088-2, JIS G4304/G4305
Surface Finishes
Finish Code Characteristics Application
No.1 Hot rolled, annealed & pickled Original surface, industrial use Pressure vessels, industrial equipment
2B Cold rolled, bright finish Smooth, reflective General fabrication, kitchen equipment
BA Bright annealed Mirror-like reflectivity Decorative, appliances, ornaments
No.4 Brushed Matte, fine satin finish Architectural, food processing
HL Hairline Continuous linear streaks Elevators, building facades
8K Mirror Highly reflective Decorative, luxury finishes
Applications
Industry Specific Applications
Oil & Gas Subsea pipelines, risers, downhole tubing, flowlines
Offshore Platforms Seawater systems, firewater lines, structural components
Chemical Processing Heat exchangers, pressure vessels, reactors, tanks
Desalination High-pressure brine piping, evaporators, RO systems
Marine Engineering Seawater cooling systems, propeller shafts, and shipbuilding
Pulp & Paper Bleaching plants, digester vessels
Flue Gas Desulfurization Absorber towers, ductwork, scrubbers
Construction Bridges, storage tanks, architectural facades
Corrosion Resistance Highlights
Corrosion Type Performance
Pitting / Crevice PREN ≥35 (2205) / ≥42 (2507) → excellent in chloride-rich environments
Stress Corrosion Cracking (SCC) Highly resistant vs. austenitic grades in chloride media
General Corrosion Superior to 304/316 in acids (sulfuric, formic, acetic)
Intergranular Corrosion Low carbon content prevents sensitization
Contact Us

Get a fast, accurate quote for Duplex Stainless Steel Sheets tailored to your project requirements.

For a quicker quotation, please provide:
  • Grade required (2205 / 2507 / 2304 / others)
  • Thickness × Width × Length
  • Surface finish requirement (2B, BA, No.4, HL, etc.)
  • Quantity (sheets or tons)
  • Required certification
  • Destination port
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