SMO 254 / UNS N31254 / SMO WNR 1.4547

SMO 254 or UNS N31254 is a combination of nickel-molyoaenum-chromium with slight addition of tungsten making it exceptionally corrosion resistant in different atmospheres. It possess great workability giving high strength. Owing to its higher resistence ability to pitting and crevice erosion it is a recommended use in Chemical industry & food processing equipment, Trucks & trailer body manufacturing purposes.

Standard availability in product form ranges from sheet, plate, wire, tube, forging stock, round and pipe. SMO 254 contains low carbon content which helps reduce carbide precipitation while welding and enhances the corrosion resistance in the soldered structures. Has advanced strength than the conservative austenitic stainless steel.

SMO 254 GRADE MANUFACTURER, UNS N31254 SUPPLIERS, SMO 254 OS-LOK TUBE FITTINGS, SMO WNR 1.4547 EXPORTERS IN INDIA – LIMITING CHEMICAL COMPOSITION %

Element Percentage
C ≤0.020
Si 0.080
Mn 1.00
P 0.030
S 0.010
Ni 18.00
Cr 20.00
Mo 6.1
Cu 0.7
N 0.20

MECHANICAL PROPERTIES :

UNS S31254 Sheet and strip
0.2% proof stress
[MPa
≥310
Tensile strength
[MPa]
≥690
Elongation
[%]
≥35
Hardness [Hv]
[HB] ≤223

SMO 254 PHYSICAL PROPERTIES :

Density [g/cm3] 8.02
Specific heat [J/kg . K] 20°C 464
Electrical resistivity [μΩ . cm] 88.2
Thermal conductivity [W/m . K] 12.3
Average coefficient of thermal expansion [10-6
/°C]
20~200°C 15.6
20~300°C 16.1
20~400°C 16.8
Young’s modulus [MPa] 16.7 × 10^4
Magnetism None
Melting range [°C] 1360~1405

SPECIFICATIONS AND DESIGNATIONS

STANDARD WERKSTOFF NR. UNS
SMO 254 1.4547 N31254

AVAILABLE TYPES OF SMO 254 / UNS N31254 GRADES PRODUCTS

SMO 254 PIPES & TUBES

SMO 254 FLANGES

SMO 254 PIPE FITTINGS

SMO 254 FORGED FITTINGS

SMO 254 FASTENERS

SMO 254 TUBE FITTINGS

SMO 254 ROUND BARS

SMO 254 SHEETS & PLATES