8,98%904L – 1.4539
904L – 1.4539
Aperam 904L super austenitic stainless steel is characterized by a high PREN (minimum 34%) and the ability to meet the most demanding applications.
Main features
High PREN: ≥ 34 – pitting and crevice corrosion resistance in the presence of chlorides. High corrosion resistance: phosphoric and sulphuric acid resistance. High temperature resistance: for chimneys and exhaust systems. Cryogenic service resistance: for liquefied gases
Applications
- (Petro) chemical, Oil & Gas
- Energy, Geothermal
- Water, Fertilisers, Chemistry
- Hydrometallurgy, Minerals processing
- Pollution control
- Exhaust
- Chimneys
- Piping & tubing
- Heat exchangers
- Storage tanks, Reactors
Norms
- ASTM 904L
- UNS N08904
- EN 1.4539
Chemical Composition
Typical values
- C=0.015
- Cr=20
- Ni=25
- Mo=4.5
- Cu=1.5
- N=≤ 0.1
Alphanumerical designation X1NiCrMoCu25-20-5
Dimensional range
Coils
- Thickness: from 0.40 to 10 mm
- Width: up to 1,524 mm
Sheets, Blanks
- Thickness: from 0.40 to 10 mm
- Width: up to 1,524 mm
Precision Strip
- Thickness: from 0.15 to 2.5 mm
- Width: from 5 to 680 mm
Precision Sheet
- Thickness: from 0.15 to 2.5 mm
- Width: from 100 to 680 mm
Surface aspects
- Hot rolled & Cold rolled
- 1D, 2B, 2R, 2D, 2E
According to thickness.
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Aperam 904L (1.4539)
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