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SAF 2507 Duplex Stainless Steel Tubing Custom Lengths / Sizes Heat Resistance

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SAF 2507 Duplex Stainless Steel Tubing Custom Lengths / Sizes Heat Resistance

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Product Details:
Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008, PED 97/23/EC
Model Number: Seamless Tube
Payment & Shipping Terms:
Minimum Order Quantity: Negotiation
Price: Negotiation
Delivery Time: 25 DAYS
Payment Terms: T/T or L/C
Supply Ability: 1000 TONS / MONTH
Detailed Product Description
Materials: Duplex Steel UNS S32507 Product Name: Duplex Stainless Steel Tube
Standard: ASME SA789 O.D.: 5/8"-2"
W.T.: BWG18-BWG14 Length MAX: 12000MM Max.
Pipe Finish: TIG Welded Type: Welded
Shape: Round Surface: Bright Annealed
Application: Heat Exchanger Package: Wooden Case
High Light:

super duplex pipe


duplex ss pipe

Super Duplex Stainless Steel 2507 ASTM A789 Duplex Steel Tube Annealed




Super Duplex tubing (2507) is made from a Duplex stainless steel, developed as a result of the growing need to solve corrosion problems in Sweden’s sulfite paper industry in the early twentieth century. As the name implies, Duplex alloys are a group of stainless steels – including Duplex, Lean Duplex, 25-Chrome and Super Duplex – with roughly equal portions of austenite and ferrite steel. The chemical composition improves intergranular and pitting corrosion resistance.

Super Duplex 2507 tubing (S32750, S32760) has excellent general corrosion resistance, including excellent resistance to stress corrosion cracking, a tremendous resistance to pitting corrosion and a high resistance to crevice corrosion. 2507 tubing also provides high tensile and impact strength, along with a low coefficient of thermal expansion but high thermal conductivity and good weldability.






S32750 Standard Specification:

Standard ASTM A789, ASME SA789
Equivalent Standards DIN 17458, GOST 9941-81, GOST 9940-81, EN 10216-5, ASTM A790, ASME SA790, DIN 17456
Material S32750
Equivalent Materials X2CrNiMoN25-7-4, 1.4410, SAF2507, F53
Related Products stainless steel tube, stainless steel pipe, heat exchanger steel tube, ASTM A789






  • High resistance to chloride stress corrosion cracking
  • Chloride pitting and crevice corrosion resistance superior to 317L stainless
  • Good general corrosion resistance
  • High strength
  • Good sulfide stress corrosion resistance
  • Useful up to 600°F



  • Chemical process vessels, piping, and heat exchangers
  • FGD scrubber systems
  • Pulp mill digesters, bleach washers, chip presteaming vessels
  • Food process equipment
  • Oil field piping, heat exchangers

ASTM A789 S32750 (SAF2507) Stainless Steel Tubes Chemical Composition


C % Si % Mn % P % S % Cr % Ni % Mo % N % Cu %
0.03 max 0.8 max 1.2 max 0.035 max 0.02 max 24.0-26.0 6.0-8.0 3.0-5.0 0.24-0.32 0.50 max

ASTM A789 S32750(SAF2507) Stainless Steel Pipe Mechanical Properties

Tensile Strength, Mpa Yield Strength, MPa Elongation, % Hardness, HB
800 min 550 min 15 min 310 max


Chemical Compositions:


Chemical Composition (%) Duplex Stainless Steel Pipe
Alloy 2205 2205
UNS Designation S31803 S32205
Carbon (C) max. 0.030 0.030
Manganese (Mn) max. 2.00 2.00
Phosphorus (P) max. 0.030 0.030
Sulfur (S) max. 0.020 0.020
Silicon (Si) max. 1.00 1.00
Chromium (Cr) 21.0 - 23.0 22.0 - 23.0
Nickel (Ni) 4.5 - 6.5 4.5 - 6.5
Molybdenum (Mo) 2.5 - 3.5 3.0 - 3.5
Nitrogen (N) 0.08 - 0.20 0.14 - 0.20
Iron (Fe) Balance Balance


SAF 2507 Duplex Stainless Steel Tubing Custom Lengths / Sizes Heat Resistance 0

SAF 2507 Duplex Stainless Steel Tubing Custom Lengths / Sizes Heat Resistance 1

Contact Details
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Contact Person: Will Ma

Tel: +86 13918539222

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