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Quality 2207 Stainless Steel Hot Rolled Plate Super Duplex Grade For Extreme Environments factory
Quality 2207 Stainless Steel Hot Rolled Plate Super Duplex Grade For Extreme Environments factory
Quality 2207 Stainless Steel Hot Rolled Plate Super Duplex Grade For Extreme Environments factory
Quality 2207 Stainless Steel Hot Rolled Plate Super Duplex Grade For Extreme Environments factory

2207 Stainless Steel Hot Rolled Plate Super Duplex Grade For Extreme Environments

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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2207 Stainless Steel Hot Rolled Plate

Stainless Steel Hot Rolled Plate Duplex
Product Summary
2207 Stainless Steel Plate， Super Duplex Grade for Extreme Environments

Product Details

Highlight:

2207 Stainless Steel Hot Rolled Plate

,

Stainless Steel Hot Rolled Plate Duplex
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 2205 stainless steel plate is a nitrogen-enhanced duplex stainless steel grade characterized by a balanced austenitic-ferritic microstructure (approximately 50% austenite / 50% ferrite). This unique dual-phase structure delivers approximately twice the yield strength of standard austenitic grades like 304L or 316L, combined with excellent resistance to chloride stress corrosion cracking (SCC), pitting, and crevice corrosion.

Duplex 2205 is the most widely used duplex stainless steel grade, serving as the standard choice for applications requiring both high strength and superior corrosion resistance in chloride-containing environments.

Key Features
Feature Description
Microstructure Austenitic + Ferritic (≈50/50 dual-phase)
Yield Strength ≥450 MPa (~2* stronger than 316L)
PREN ≥35 (excellent pitting resistance)
Corrosion Resistance Superior against SCC, pitting, and crevice corrosion
Temperature Range -50°F to 600°F (-46°C to 316°C) continuous service
Magnetic Yes (due to ferrite phase)
Weldability Good, with proper procedures
Equivalent Designations
Standard Grade
ASTM UNS S32205 / S31803
EN 1.4462
AISI 2205
JIS SUS329J3L
DIN X2CrNiMoN22-5-3
ISO 2205
Specifications & Size Range
Parameter Range
Thickness 0.3 mm – 100 mm (custom up to 200 mm available)
Width 50 mm – 3500 mm
Length 1000 mm – 12000 mm (custom available)
Standard Coil Widths 1000 mm, 1219 mm, 1240 mm, 1500 mm, 2000 mm
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 industrial surface Pressure vessels, industrial equipment
2B Cold rolled, bright finish Smooth, reflective General fabrication, tanks
BA Bright annealed Mirror-like reflectivity Decorative applications
No.4 Brushed Matte, fine satin finish Architectural, food processing
HL Hairline Continuous linear streaks Building facades, elevators
8K Mirror Highly reflective Luxury decorative finishes
Chemical Composition
Duplex 2205 (UNS S32205 / S31803)
Element UNS S32205 (%) UNS S31803 (%)
Carbon (C) ≤0.030 ≤0.030
Chromium (Cr) 22.0 – 23.0 21.0 – 23.0
Nickel (Ni) 5.5 – 6.5 4.5 – 6.5
Molybdenum (Mo) 3.0 – 3.5 2.5 – 3.5
Manganese (Mn) ≤1.20 ≤2.00
Silicon (Si) ≤0.80 ≤1.00
Nitrogen (N) 0.14 – 0.20 0.08 – 0.20
Phosphorus (P) ≤0.030 ≤0.030
Sulfur (S) ≤0.020 ≤0.020
Iron (Fe) Balance Balance

Note: UNS S32205 is the preferred modern specification with tighter chromium, molybdenum, and nitrogen ranges for improved consistency.

PREN (Pitting Resistance Equivalent Number) = %Cr + 3.3*%Mo + 16*%N ≈ 35

Mechanical Properties
Property Value
Tensile Strength (min) ≥620 MPa (90 ksi)
Yield Strength (0.2% offset, min) ≥450 MPa (65 ksi)
Elongation (min) 25%
Hardness (max) 290 HB / 30 HRC
Density 7.8 g/cm³ (0.283 lb/in³)
Modulus of Elasticity 200 GPa (29.0 * 10⁶ psi)
Melting Point 1425 – 1460°C (2597 – 2660°F)
Impact Strength (min) 100 J at -46°C
Physical Properties
Property Value
Coefficient of Thermal Expansion (20-200°C) 13.5 * 10⁻⁶ /°C
Thermal Conductivity (20°C) 19.0 W/m·K
Specific Heat (20°C) 500 J/kg·K
Electrical Resistivity (20°C) 0.80 μΩ·m
Corrosion Resistance Highlights
Corrosion Type Performance
Pitting / Crevice PREN ≥35 → excellent resistance in chloride environments; far superior to 304/316
Stress Corrosion Cracking (SCC) Highly resistant to chloride and H₂S environments; NACE MR0175 compliant for sour service
General Corrosion Superior to 304/316 in organic acids (formic, acetic) and dilute sulfuric acid
Intergranular Corrosion Low carbon content prevents sensitization
Seawater Resistance Excellent; widely used in seawater systems with proper design
Processing Guidelines
Hot Working

Temperature range: 1750 – 2050°F (950 – 1120°C), followed by rapid cooling (water quenching). Avoid working below 1700°F (925°C).

Cold Working

Requires approximately 30-50% higher forming force compared to 316L. Intermediate annealing may be required for severe deformation.

Heat Treatment

  • Solution Annealing: 1870 – 2010°F (1020 – 1100°C)

  • Cooling: Water quench or rapid air cool

  • Hardening: Not hardenable by heat treatment; only through cold working

Welding

  • Suitable with standard methods (SMAW, GTAW, GMAW, SAW, FCAW)

  • Recommended filler metal: 2209 (E2209 or ER2209)

  • Control heat input (0.5 – 2.5 kJ/mm) to maintain phase balance

  • Preheat is generally not required

  • Post-weld heat treatment is not typically needed

  • Avoid overheating to prevent intermetallic phase precipitation

Machining

Requires rigid tooling and lower cutting speeds due to higher strength and work hardening tendency compared to austenitic grades.

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