BÖHLER A965SA
BÖHLER A965SA is an austenitic stainless steel alloy with 6% molybdenum and nitrogen. It has very high resistance to crevice and surface corrosion and was specially developed for the requirements of the chemical industry, the pulp and paper industry and the oil/gas industry. Due to its PREN value of over 40, the material is particularly resistant to seawater and is therefore often used in offshore technology.
Furthermore, BÖHLER A965SA is resistant to intergranular corrosion up to 400°C. The required surface finish is pickled, scale-free heat treated or machined.
For applications in highly corrosive environments due to chemically aggressive media, e.g. for equipment and installations cooled with seawater and parts for offshore installations. In the chemical industry, where resistance to attack by pure acids as well as chloride ion-containing acids (especially sulphuric acid), organic acids and mixed acids in the higher pressure and temperature range is required. The increased resistance to crevice corrosion also allows the use where incrustations must be expected and / or where the formation of crevices cannot be avoided by constructive measures.
Available Product Shapes
Long Products: ) Presented data refer exclusively to long products. Please observe the detailed explanations at the end of the data sheet (pdf).
Melting Route
Airmelted
Material Numbers
- Market grade
- F44
- Market grade
- 254SMO
- SEL
- 1.4547
- EN
- X1CrNiMoCuN20-18-7
- UNS
- S31254
Standards
- EN ISO
- 10088-3
- ASTM
- A182/A182M
- ASTM
- A276/A276M
- ASTM
- A479/A479M
- NORSOK
- MDS R17
Chemical Composition
* Chemical Composition (Average %)
- C
- max. 0.020
- Si
- max. 0.80
- Mn
- max. 1.00
- P
- max. 0.030
- S
- max. 0.010
- Cr
- 19.5 to 20.5
- Mo
- 6.0 to 6.5
- Ni
- 17.5 to 18.5
- Cu
- 0.50 to 1.00
- N
- 0.18 to 0.25