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Quality Oil And Gas Duplex Stainless Steel Tubing NACE MR0175 2205 2507 For Sour Service Applications factory
Quality Oil And Gas Duplex Stainless Steel Tubing NACE MR0175 2205 2507 For Sour Service Applications factory

Oil And Gas Duplex Stainless Steel Tubing NACE MR0175 2205 2507 For Sour Service Applications

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

Duplex Stainless Steel Tubing NACE MR0175
Product Summary
Oil and gas duplex stainless steel tubing is specifically engineered for the demanding environments encountered in upstream, midstream, and downstream operations. The unique two-phase microstructure (austenite + ferrite) combined with high chromium, molybdenum, and nitrogen content provides ...

Product Details

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Duplex Stainless Steel Tubing NACE MR0175

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Duplex Stainless Steel Tubing 2205

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Oil And Gas Stainless Steel Tubing 2507
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

Oil and gas duplex stainless steel tubing is specifically engineered for the demanding environments encountered in upstream, midstream, and downstream operations. The unique two-phase microstructure (austenite + ferrite) combined with high chromium, molybdenum, and nitrogen content provides exceptional resistance to the corrosive conditions typical of oil and gas production, including sour service (H₂S), carbon dioxide (CO₂), chlorides, and high pressures.

Our duplex tubing is widely used in downhole completions, subsea umbilicals, flow lines, and surface facilities where standard carbon steel or austenitic stainless steel grades experience pitting, stress corrosion cracking, or general corrosion failure.

Product Specifications
Parameter Details
Standard ASTM A789, A790, API 5LC, ISO 13628, NACE MR0175 / ISO 15156
Grades 2205 (UNS S31803, S32205), 2507 (UNS S32750), S32760
Size (OD) 6.35 mm – 254 mm (1/4" – 10")
Wall Thickness 0.89 mm – 12.7 mm
Length Random lengths 6m – 12m, custom cut, coil lengths for small diameters
Process Seamless (cold drawn) – preferred for oil and gas service
Surface Finish Annealed and pickled, Bright annealed, Mechanically polished
End Finish Plain ends, Beveled ends, Threaded and coupled
Chemical Composition by Grade (Reference %)
Element 2205 (S32205) 2507 (S32750) S32760
Carbon (C) ≤ 0.030 0.030 0.030
Silicon (Si) ≤ 1.00 0.80 1.00
Manganese (Mn) ≤ 2.00 1.20 1.00
Phosphorus (P) ≤ 0.030 0.035 0.030
Sulfur (S) ≤ 0.020 0.020 0.010
Chromium (Cr) 22.0 – 23.0 24.0 – 26.0 24.0 – 26.0
Nickel (Ni) 4.5 – 6.5 6.0 – 8.0 6.0 – 8.0
Molybdenum (Mo) 3.0 – 3.5 3.0 – 5.0 3.0 – 4.0
Nitrogen (N) 0.14 – 0.20 0.24 – 0.32 0.20 – 0.30
Tungsten (W) — — 0.50 – 1.00
Copper (Cu) — ≤ 0.50 0.50 – 1.00
Mechanical Properties
Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HRC)
2205 ≥ 620 ≥ 450 ≥ 25 ≤ 28 (NACE)
2507 ≥ 730 ≥ 550 ≥ 20 ≤ 28 (NACE)
S32760 ≥ 730 ≥ 550 ≥ 25 ≤ 28 (NACE)

Note: Hardness limits above are for NACE MR0175 sour service compliance. Please refer to the mill test certificate for actual data.

Key Features for Oil and Gas

Sour Service Certified – NACE MR0175 / ISO 15156 compliant for H₂S environments

High Strength – Yield strength up to 550 MPa (80 ksi) minimum

Stress Corrosion Cracking Resistance – Resists SCC in chloride and H₂S environments

Pitting Resistance – PREN of 33-45 protects against localized corrosion

CO₂ Corrosion Resistance – Excellent performance in sweet service (CO₂ containing)

High Pressure Capability – Suitable for downhole and subsea pressures

Low Temperature Toughness – Maintains impact resistance down to -50°C

Good Weldability – Can be welded in field and shop applications

Oil and Gas Service Environments
Service Type Description Duplex Suitability
Sweet Service CO₂ present, no H₂S Excellent (2205, 2507)
Sour Service H₂S present (up to 10 psi partial pressure) Excellent with NACE certification
High Chloride Formation waters, produced brines Excellent (2507 preferred)
High Pressure Downhole, subsea, wellhead Excellent (seamless preferred)
High Temperature Up to 300°C (572°F) Good (2205, 2507)
Low Temperature Down to -50°C (-58°F) Good
Applications in Oil and Gas

Downhole

  • Production tubing
  • Casing and liners
  • Downhole control lines
  • Gas lift tubing
  • Injection strings
  • Sand screen bases

Subsea

  • Umbilical tubes (hydraulic and chemical injection)
  • Subsea flow lines
  • Jumper tubes
  • Subsea control lines
  • ROV hydraulic lines
  • Manifold tubing

Surface Facilities

  • Wellhead flow lines
  • Christmas tree piping
  • Manifold piping
  • Separator piping
  • Heater treater tubes
  • Dehydrator piping

Midstream

  • Gas gathering lines
  • Liquid hydrocarbon pipelines
  • Corrosive fluid transfer

Downstream / Refinery

  • Heat exchanger tubing
  • Hydrotreater piping
  • FCCU piping
  • Sour water stripper lines
Sour Service Compliance (NACE MR0175 / ISO 15156)

For applications containing hydrogen sulfide (H₂S), duplex tubing must comply with NACE MR0175.

Requirement 2205 2507
Maximum Hardness (HRC) ≤ 28 ≤ 28
Sulfide Stress Cracking (SSC) Resistant Resistant
Hydrogen Induced Cracking (HIC) Resistant Resistant
Maximum H₂S Partial Pressure 10 psi (70 kPa) 10 psi (70 kPa)
Maximum Temperature 300°C (572°F) 300°C (572°F)
Minimum Temperature -50°C (-58°F) -50°C (-58°F)
NACE Region 0, 1, 2, 3 0, 1, 2, 3
Umbilical Tubing (ISO 13628)

For subsea umbilical applications, our duplex tubing meets ISO 13628 requirements.

Parameter Detail
Standard ISO 13628-5
Typical Grades 2205, 2507
Typical OD Range 6.35 mm – 25.4 mm (1/4" – 1")
Typical Wall Thickness 0.89 mm – 2.77 mm
Lengths Continuous coils up to several kilometers
Testing Hydrostatic, PMI, tensile, flattening, guided bend
Certification EN 10204 3.1 or 3.2
Downhole Production Tubing (API 5LC)

For downhole production applications, duplex tubing can be supplied to API 5LC standards.

Grade API 5LC Equivalent Typical Depth Rating Yield Strength
2205 Grade UNS S32205 5,000 – 15,000 ft 65 – 95 ksi
2507 Grade UNS S32750 10,000 – 20,000 ft 80 – 120 ksi
Pressure and Temperature Limits
Grade Maximum Pressure (ksi) Maximum Temperature Minimum Temperature
2205 Up to 20 (dependent on wall thickness) 300°C (572°F) -50°C (-58°F)
2507 Up to 25 (dependent on wall thickness) 300°C (572°F) -50°C (-58°F)

Pressure ratings are derated at elevated temperatures. Consult engineering tables for specific values.

Comparison: Duplex vs. Other Oil and Gas Materials
Property Carbon Steel 13Cr (Martensitic) 316L 2205 Duplex 2507 Super Duplex
CO₂ Corrosion Poor Good Good Excellent Excellent
H₂S (Sour Service) Poor (with inhibition) Limited Poor Good Good
Chloride SCC N/A Poor Poor Excellent Excellent
Yield Strength (ksi) 35 – 55 55 – 80 30 65 80
Relative Cost 1x 3-4x 4-5x 5-6x 7-8x
Best For Sweet, low corrosion Sweet, mild sour Clean service Sour, high chloride Extreme sour, seawater
Contact Us

Need duplex tubing for your oil and gas project? We are ready to supply.

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