Stainless steel
EU
1.4562 – Alloy 31 – X1NiCrMoCu32-28-7
US
UNS N08031
Alloy 1.4562 is a nickel, chromium and molybdenum stainless steel to which nitrogen and copper have been added.
UNS N08031 - Alloy 31 - Available from stock
Alloy 1.4562, also known as Alloy 31, X1NiCrMoCu32-28-7, or UNS N08031, is an advanced austenitic stainless steel that combines nickel, chromium, molybdenum, nitrogen and copper in its composition.
This combination gives it a series of exceptional properties, suitable for demanding applications. Here is a technical summary of this alloy:
- Europe: 1.4562 | X1NiCrMoCu32-28-7 | Alloy 31
- USA: UNS N08031
- Europe: NACE MR 0175 | ISO 15156 | SEW 400 | WB 509-1 | WB509-2
- USA: ASTM B625-21
- Excellent corrosion resistance: especially effective against corrosion in a wide range of media, including reducing mineral acids, chloride solutions, and chloride-contaminated organic and inorganic environments.
- Resistance to stress corrosion and stress corrosion cracking: performs well in critical conditions where other alloys might fail.
- Good oxidation resistance: capable of resisting oxidation at elevated temperatures.
- Alloy 1.4562 generally does not require heat treatment after manufacturing except to relieve stress, because its properties are mainly obtained by alloying and cold working.
- Alloy 1.4562/Alloy 31 is selected for its superior performance under extremely corrosive conditions, offering a durable solution for critical applications where reliability and longevity are paramount.
Properties
- Excellent corrosion resistance: especially effective against corrosion in a wide range of media, including reducing mineral acids, chloride solutions, and chloride-contaminated organic and inorganic environments.
- Resistance to stress corrosion and stress corrosion cracking: performs well in critical conditions where other alloys might fail.
- Good oxidation resistance: capable of resisting oxidation at elevated temperatures.
Standards and Designations
Heat treatment
- Alloy 1.4562 generally does not require heat treatment after manufacturing except to relieve stress, because its properties are mainly obtained by alloying and cold working.
- Alloy 1.4562/Alloy 31 is selected for its superior performance under extremely corrosive conditions, offering a durable solution for critical applications where reliability and longevity are paramount.
Special advantages
Conclusion
Application
- Used in the chemical and petrochemical industry, especially for acid treatment equipment, seawater desalination systems, and waste management facilities.
- Applicable in sectors requiring high corrosion resistance, such as power generation, wastewater treatment, and pulp and paper manufacturing.
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