904L
Alleima® 2RK65 is a high-alloy austenitic stainless steel intended for use under severe corrosive conditions within the process industry.
The grade is characterized by:
- Very good resistance to attacks in acidic environments, e.g. sulfuric, phosphoric and acetic acid
- Very good resistance to pitting in neutral chloride-bearing solutions
- Much better resistance to crevice corrosion than steels of the ASTM 304 and ASTM 316 types
- Very good resistance to stress corrosion cracking
- Good weldability
Standards:
- ASTM: '904L'
- UNS: N08904
- ISO: 4539-089-04-I
- EN Number: 1.4539
- EN Name: X1NiCrMoCu25-20-5
Product standards
- ASTM A213 (seamless/welded tube)
- ASTM A269 (seamless/welded tube)
- ASTM A312 (seamless/welded pipe)
- Alleima® 2RK65
- ASTM A240 (plate and sheet)
- ASTM A276, A479, A484 (bar)
- ASTM B677 (seamless tube and pipe)
- EN 10216-5 (seamless tube and pipe)
Approvals
- Approved for use in ASME Boiler and Pressure Vessel Code section VIII, div. 1 construction
- VdTÜV-Werkstoffblatt 421 (Austenitischer
Aplications:
Typical applications for Alleima® 2RK65 are found in oil refineries and within the chemical and petrochemical industry.
Alleima® 2RK65 is also used within the pulp and paper industry, the mineral and metallurgical industry, the food industry, in seawater cooling and in many other fields.
The grade is an excellent alternative to standard austenitic
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.