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Alloy 254 UNS S31254 Plate, also known as 254 SMO Plate, SA 240 UNS S31254 Plate, and SS 254 SMO F44 Plates, represents a premium super austenitic stainless steel solution for demanding industrial applications.
Alloy 254 SMO is a high-end, molybdenum and nitrogen alloyed super austenitic stainless steel with low carbon content. It demonstrates outstanding resistance to pitting, crevice corrosion, stress cracking, and corrosion fatigue. With strength nearly twice that of 300 series stainless steel, it offers high ductility and impact strength, making it ideal for high chloride environments.
Specifications: SMO 254 / UNS S31254 Sheets & Plates
Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form
Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
Chemical Composition
Element
Content (%)
Ni
17.5 – 18.5
Cr
19.5 – 20.5
Mo
6 – 6.5
Cu
0.5 – 1.0
N
0.18 – 0.22
C
0.02
Mn
1.0
Si
0.08
P
0.03
S
0.01
Mechanical Properties
Property
Value
Density
8.0 g/cm³
Melting Point
1320-1390 °C
Yield Strength (0.2% Offset)
300 MPa
Tensile Strength
650 MPa
Elongation
35%
Equivalent Grades
Standard
Designation
UNS
S31254
WERKSTOFF NR.
1.4547
AFNOR
Z1 CNDU 20.18.06Az
EN
X1CrNiMoCuN20-18-7
SIS
2378
Corrosion Resistance
Excellent resistance to pitting and crevice corrosion due to its high chromium, molybdenum, and nitrogen content. With very low carbon content, there is minimal risk of carbide precipitation during heating. Possesses exceptional resistance in chloride-containing water, making it suitable for prolonged seawater exposure without crevice corrosion.
Industry Standards
ASTM/ASME: UNS S31254
EURONORM: FeMi35Cr20Cu4Mo2
DIN: 2.4660
Applications
Elevated oil distillation columns
Exhaust gas desulfurization scrubbers
Pumps, valves, chokes, and pipework
Saltwater handling systems
Flanges and manifolds
Industrial components for oil and gas production
Food processing equipment
Chemical industry components
Bleaching equipment in pulp & paper industry
Desalination equipment
Heat exchangers
Offshore oil & gas production equipment
Flue gas desulphurization scrubbers
Tall oil distillation columns
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
500,000,000-800,000,000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h... Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h...