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 |
