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Quick facts

Product Form Heat exchanger tubing
Standard Sizes OD 0.75 – 1" (19.05 – 25.4 mm)
WT 0.049 – 0.083" (1.24 – 2.11 mm)
Other sizes available upon request
Standard: ASTM A789/790
Common Applications
  • Caustic evaporators
  • Acid coolers
  • Condensers


Download datasheet

SAF™ 3006 – the missing tool in your duplex toolbox for heat exchanger tubing

SAF™ 3006 (UNS S83071) is a high-alloy duplex (austenitic-ferritic) stainless steel that is tailored to enhance corrosion resistance in acid and caustic environments. Designed specifically for heat exchangers within the chemical and petrochemical industries, it provides a cost-effective alternative to austenitic stainless steels and nickel-based alloys. SAF™ 3006 offer all the benefits you’d expect of a duplex steel, in terms of strength, lighter weight and cost-efficiency, but tailored to resist acids in heat exchangers, with or without seawater cooling.

SAF™ 3006 – the perfect choice

This new super-duplex offers all the advantages of an advanced duplex grade, including high mechanical strength (enabling lighter construction) and cost-efficiency, while offering high corrosion resistance to acids. Compared to the super-duplex SAF™ 2507 (UNS S32750), it provides equal or better resistance to pitting and crevice corrosion in chloride environments.

SAF™ 3006 (UNS S83071)
Chemical composition (nominal), %

C Si Mn P S Cr Ni Mo N
≤0.030 .02 1.0 ≤0.030 ≤0.015 30 7 3.2 0.35


Product Form Standard Sizes Common Applications
Heat exchanger tubing OD 0.75 – 1" (19.05 – 25.4 mm)
WT 0.049 – 0.083" (1.24 – 2.11 mm)
Other sizes available upon request
Standard: ASTM A789/790		 – Caustic evaporators
– Acid coolers
– Condensers

Review and download the SAF™ 3006 data sheet here.