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Quality Super Duplex 2507 Pipe Stainless Steel Tube For Extreme Corrosive Environments factory
Quality Super Duplex 2507 Pipe Stainless Steel Tube For Extreme Corrosive Environments factory
Quality Super Duplex 2507 Pipe Stainless Steel Tube For Extreme Corrosive Environments factory
Quality Super Duplex 2507 Pipe Stainless Steel Tube For Extreme Corrosive Environments factory

Super Duplex 2507 Pipe Stainless Steel Tube For Extreme Corrosive 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
Tags

Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

Super Duplex 2507 Pipe
Product Summary
Duplex 2507 Pipe Super Duplex Stainless Steel for Extreme Corrosive Environments

Product Details

Highlight:

Super Duplex 2507 Pipe

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2507 Duplex Stainless Steel Tube

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Super Duplex Stainless Steel Tube
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 2507 pipe is a super duplex stainless steel designed for applications requiring exceptional strength and outstanding corrosion resistance. With a duplex microstructure (approximately 50% austenite / 50% ferrite), it offers nearly twice the yield strength of common austenitic stainless steels like 316L or 317L.

This grade is the material of choice for offshore platforms, chemical processing, desalination plants, and oil & gas exploration, where chloride pitting, crevice corrosion, and stress corrosion cracking (SCC) are major concerns.

Product Specifications
Feature Description
Standard ASTM A789 / A790, ASME SA789 / SA790
Grade Duplex 2507
Type Seamless pipe/tube
Microstructure 50% austenite / 50% ferrite
Yield Strength ≥550 MPa (≈ 2× 316L)
PREN ≥42 (excellent pitting resistance)
Chemical Composition
Element Min % Max %
Chromium (Cr) 24.0 26.0
Nickel (Ni) 6.0 8.0
Molybdenum (Mo) 3.0 5.0
Nitrogen (N) 0.24 0.32
Carbon (C) -- 0.030
Manganese (Mn) -- 1.20
Silicon (Si) -- 0.80
Phosphorus (P) -- 0.035
Sulfur (S) -- 0.020
Copper (Cu) -- 0.50
Iron (Fe) Balance Balance
Physical Properties
Property Value
Density 7.80 g/cm³ (0.282 lb/in³)
Melting Range 1350 - 1400 °C (2460 - 2550 °F)
Coefficient of Thermal Expansion 13.0 μm/m*K (7.2 μin/in*°F)
Modulus of Elasticity 200 kN/mm² (29,000 ksi)
Typical Tensile Properties (Annealed Condition)
Property Value
Tensile Strength, min 800 MPa (116 ksi)
Yield Strength (0.2% offset), min 550 MPa (80 ksi)
Elongation, min 15%
Hardness (Brinell), max 310 HB
Specifications & Size Range
Parameter Range
Outer Diameter (OD) 6.0 mm – 610 mm (1/4" – 24")
Wall Thickness (WT) 0.5 mm – 30 mm (SCH 5S – SCH 160)
Length 6.0 m random length; custom lengths available
End Finish Plain ends, beveled ends, threaded
Common stock sizes

  • OD: 25.4 mm × WT: 2.77 mm × L: 6.0 m

  • OD: 50.8 mm × WT: 3.05 mm × L: 6.0 m

  • OD: 88.9 mm × WT: 4.0 mm × L: 6.0 m

  • OD: 168.3 mm × WT: 5.0 mm × L: 6.0 m

Applications

Duplex 2507 seamless pipe is widely specified for extremely corrosive environments:

Industry Specific Applications
Oil & Gas Subsea pipelines, flow lines, risers, downhole tubing
Offshore Platforms Firewater systems, hydraulic lines, structural components
Chemical Processing Heat exchangers, pressure vessels, reactors
Desalination High-pressure brine piping, evaporators
Pulp & Paper Bleaching plants, digester vessels
Marine Engineering Seawater cooling systems, propeller shafts
Flue Gas Desulfurization (FGD) Absorber towers, ductwork
Corrosion Resistance Highlights
Corrosion Type Performance
Pitting / Crevice PREN ≥42 → excellent resistance in chloride-rich environments
Stress Corrosion Cracking (SCC) Resistant to SCC in chloride and H₂S environments (NACE MR0175 compliant)
General Corrosion Superior to 316L and 2205 in acids (sulfuric, formic, acetic)
Intergranular Low carbon content prevents sensitization
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