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Key Benefits

  • Pitting and crevice corrosion resistance
  • Stress corrosion cracking (SCC) resistance
  • General corrosion resistance in acid and caustic environments
  • High mechanical strength
  • Good weldability using nickel alloy consumables

Sanicro® 35 for Refineries

Avoid performance tradeoffs

Sanicro® 35 (UNS: NO8935) is a breakthrough alloy that bridges the gaps between standard stainless steel and nickel alloys: a cost-effective way to address severe
corrosion challenges in a wide range of service conditions. Depending on the situation, it also offers a potential alternative to Alloy 625 or Alloy C-276.

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What gaps will you fill with Sanicro® 35?

See how Sanicro® 35 fills the gaps as a cost effective alternative to high nickel alloys, when the properties of a standard duplex or austenitic grade may be insufficient.

Chemical composition (nominal), % UNS N08935

C Si Mn P S Cr Ni Mo Cu N Fe
≤0.030 ≤0.4 0.8 ≤0.030 ≤0.020 27 35 6.5 0.2 0.30 Remainder

High structural stability

Thanks to balanced chemistry, Sanicro® 35 is not prone to intermetallic phases, ensuring maximum performance and stable welding properties.

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)
Up to OD 1.65" (42 mm) available upon request
Standard: ASTM B163
Refineries (CDU overheads, REACs, gas cleaning / Sour water, Petrochemical and Chemicals plants) chlorinated hydrocarbons, PTA, inorganic acids (e.g. phosphoric, sulphuric acid), organic acids (e.g. formic and acetic acid), Seawater cooled heat exchangers (all industries),
Biofuels and other renewable energy applications.
Hydraulic and
instrumentation
tubing
OD 0.25 – 0.5" (6.35 – 12.7 mm)
WT 0.035 – 0.083" (0.89 – 2.11 mm)
From stock or for larger project offering
Standard: ASTM B163
Refineries, Petrochemical and Chemical plants in coastal areas (high Cl-), Oil & Gas (wellhead
panels, X-mas trees, etc.), fuel lines for gas stations and vehicles, Marine & Shipbuilding,
Renewable energy. Elevated temperature exposure in corrosive enviornments (chlorides,
acids, etc).
Round Bar Dia. 0.78 – 9.44" (20 – 240 mm)
Standard: ASTM B163, ASTM B649
Flanges, valves and discs, fittings, couplings, rings and seals, bolts and nuts, shafts, drilling tools, heat exchanger parts.
Seamless Pipe OD up to 4"
Standard: ASTM B677
Oil & Gas (topside piping, subsea piping), Seawater handling piping systems, Chemical industry process piping (inorganic acids, organic acids, specialty chemicals).

Related Webinars

Webinar June 7, 2023
Sanicro 35: Bridging the gap between stainless and nickel alloys for refinery applications

Sanicro 35: Bridging the gap between stainless and nickel alloys for refinery applications

View the recorded webinar

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