254 SMO
Alleima® 254 SMO is a high-alloy austenitic stainless steel developed for use in seawater and
other aggressive chloride-bearing media.
The grade is characterized by:
- Excellent resistance to pitting and crevice corrosion, PRE = ≥42.5*
- High resistance to general corrosion
- High resistance to stress corrosion cracking
- Higher strength than conventional austenitic stainless steels
- Good weldability
*The PRE is defined as, in weight-%, PRE = %Cr + 3.3 x %Mo + 16 x %N
Ficha
Técnica
Catálogo Alleima
Trademark information: 254 SMO is a trademark owned by Outokumpu OY.
Standards:
- UNS: S31254
- EN Number: 1.4547
- EN Name: X1CrNiMoCuN20-18-7
- W.Nr.: 1.4529**
- AFNOR: Z1 CNDU 20.18.06AZ*
* Obsolete. Replaced by EN.
** Nearest equivalent grade.
Product standards:
Seamless tube and pipe: ASTM A269, A213, A312, NFA 49-217, EN 10216-5
Norsok MDS R11/R18, IOGP S-563 MDS IR111/111S/IR118/IR118S
Welded tube and pipe: ASTM A249, A269 , A312, A358, A409
Fittings: ASTM A182
Bar: ASTM A276, A479, EN 10088-3
Forged products: ASTM A473
Aplications:
Alleima 254 SMO is used in the following applications:
- Equipment for handling of seawater, such as seawater cooling, cooling water pipes, ballast water systems,
firefighting systems etc.
- Hydraulic and instrumentation tubing
- Equipment in pulp bleaching plants
- Components in gas cleaning systems
- Tanks and pipelines for chemicals with high halide contents
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.