6 Moly S31254
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6 Moly S31254
254SMo, UNS S31254, 6 Moly Alloy UNS S31254 (Equal and Superior Than 254 SMO,EN 1.4547) is an austenitic stainless steel of the ELC type developed for use in seawater and other aggressive chloride-bearing media.
Properties
Chemical Composition(%)
| Ni | Cr | Mo | Cu | N | C | Mn | Si | P | S |
|---|---|---|---|---|---|---|---|---|---|
| 17.5~18.5 | 19.5~20.5 | 6~6.5 | 0.5~1.0 | 0.18~0.22 | Max0.20 | Max1.0 | Max0.8 | Max0.03 | Max0.01 |
Specification
The speification we produce: Seamless Tube: OD:15.88-219.1mm WT:0.8-20mmStandard
Standard: ASTM A269, A213,A312,EN216-3.Metallurgical structure Alloy 254SMO is face-centered cubic lattice structure. In order to obtain austenitic structure, 254SMO general annealing in the 1150-1200degree.In some cases, the material maybe with the traces of metal middle phase (x phase and & alpha phase). However,their impact strength and corrosion resistance are not adversely affected in normal circumstances. When placed in the range of 600-1000degree, they may phase in the grain boundary precipitation.
