6Mo / 254SMO

Wst. 1.4529 / 1.4547
UNS N08367 / S31254

Definitions: ASTM A 269/A 213/A 1016, NACE MR0175, PED 97/23 EC
EN 10216-5 / NORSOK M-650 MDS R18

Maximum Service Temperature: 400°C / 848°F

Alloy 254 SMO / 6MO material contains high molybdenum material (min 6%) and thanks to this molybdenum, the Alloy 254 SMO material is highly resistant to corrosion. This material is a material for use in harsh environments such as sea water. It is particularly resistant to acids containing halogen salt.

Technicial Specifications

Chemical Values (%)
Fe
Cr
Ni
Mo
Mn
Cu
Si
P
N
C
S
254SMO min
Bal.
19.5
17.5
6.0
0.5
0.18
max
20.5
18.5
6.5
1.00
1.0
0.80
0.03
0.25
0.030
0.010
6MO min
Bal.
20.0
23.5
6.0
0.18
max
22.0
25.5
7.0
0.75
1.00
0.04
0.25
0.040
0.030
Mechanical Properties
254SMO
6MO
Tensile strenght (mpa, min)
650 – 850
675 – 875
Yield strength (0.2% offset mpa, min)
300 – 340
310 – 350
Elongation (%, min)
35
30
Density / weight (g / cm3 / kg)
8.05
8.05