A911SA
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Application Segments

Oil & Gas/CPI

Melting Route

Airmelted

Product Description

BÖHLER A911SA is a ferritic-austenitic stainless steel of Type 25%Cr with PREN of min. 40. It offers excellent corrosion resistance against general corrosion, stress corrosion cracking, corrosion fatigue, pitting, crevice and erosion corrosion and possessing very high mechanical strength properties. However, it contains less copper compared to other super Duplex SS but a deliberate addition of tungsten instead, claimed to selectively improve corrosion resistance. Good weldability, post weld heat treatment not necessary.
Max. temperature for long periods of service: 280°C (535°F ) / (300°C/570°F possible for short
periods).
Surface condition for optimum corrosion resistance: pickled or machined.
Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, separator parts, compressor and pump components, turbine blades.

Property Features

Ferritic-austenitic stainless steel. Excellent corrosion resistance against general corrosion, stress corrosion cracking, corrosion fatigue, pitting, crevice and erosion corrosion and possessing very high mechanical strength properties. Good weldability, post weld heat treatment not necessary. Max. temperature for long periods of service: 280°C (535°F) / (300°C/570°F possible for short periods). Surface condition for optimum corrosion resistance: pickled or machined.

Technical Specifications

Material Numbers


1.4501 S32760 X2CrNiMoCuWN25-7-4 F55


Standards


10088-3 A182/A182M A276/A276M A479/A479M MDS D57

Chemical Composition

max. 0.030 max. 1.00 max. 1.00 max. 0.030 max. 0.010 24.0 to 26.0 3.0 to 4.0 6.0 to 8.0 0.50 to 1.00 0.50 to 1.00 0.20 to 0.30

Chemical composition (average %)

Available product shapes

  • Long Products
  • Plates
  • Semi-Finished Products / Billet

Contacts

BÖHLER India

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BÖHLER India

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