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

Applications

Downloads