ALLEIMA 2906
SAFTM 2906 is a high-alloy duplex (austenitic-ferritic) stainless steel with excellent corrosion
resistance in caustic environments and environments with chlorides.
The grade is characterized by:
- Excellent resistance to caustic environments, also in the presence of contaminants such as chlorides
- Excellent resistance to intergranular corrosion
- Excellent resistance to pitting and crevice corrosion
- High resistance to stress corrosion cracking (SCC)
- Good weldability
- Very high strength. The proof strength is about three times as high as for conventional austenitic stainless
steels.
Standards:
- UNS: S32906
- EN Number: 1.4477
Product standards
- Seamless tube and pipe: ASTM A789, A790
- Bar steel: ASTM A479
- Plate: ASTM A240
Approvals
- Approved by the American Society of Mechanical Engineers (ASME) for use in accordance with ASME
Boiler and Pressure Vessel Code, Section VIII, div. 1 and 2.
- PED (Pressure Equipment Directive) PED 2014/68/EU and AD2000 Merkblatt W2: Particular Material
Appraisal (PMA), Austenitic-ferritic steel SAFTM 2906.
Aplications:
Typical applications for SAFTM 2906 are:
- Caustic soda production: the material is suitable for use in piping systems from the cells up to the evaporation plant. It is also an excellent choice for very aggressive conditions, such as the evaporator tubes, in both diaphragm and membrane process.
- Alumina production: heat exchanger tubes and piping in the digestion of alumina
- Environments where high resistance to pitting and crevice corrosion is required
ACEROS TITANIUM no garantiza la exactitud de la información contenida en este documento y recomienda que los usuarios investiguen en profundidad aspectos técnicos y especificaciones antes de realizar una compra. Esta información técnica ha sido recompilada de diversas fuentes en línea, incluyendo Alleima, Ovako y Roxon entre otras. Esta ficha técnica ha sido proporcionada solo para fines informativos y no ha sido verificada de forma independiente por ACEROS TITANIUM CHILE LTDA.