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Super Austenitic Steel 254 SMO Plate Material S31254
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.
SMO 254 / UNS S31254 Sheets & Plates Specifications
Comprehensive specifications for SMO 254 / UNS S31254 Sheets & Plates. Contact us for any specifications not listed below.
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.
SMO 254 / UNS S31254 Chemical Composition
Grade
SMO 254
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
SMO 254 / UNS S31254 Mechanical Properties
Grade
SMO 254
Density
8.0 g/cm3
Melting Point
1320-1390 °C
Yield Strength (0.2% Offset)
300
Tensile Strength
650
Elongation
35 %
SMO 254 / UNS S31254 Equivalent Grades
STANDARD
SMO 254
UNS
S31254
WERKSTOFF NR.
1.4547
AFNOR
Z1 CNDU 20.18.06Az
EN
X1CrNiMoCuN20-18-7
SIS
2378
Applications of S31254 Stainless Steel
Elevated oil distillation columns
Exhaust gas desulfurization scrubbers
Pumps, chokes, and valves
Industrial components for oil and gas
Food processing equipment components
Pipework and manifolds
Saltwater handling systems
Chemical industry components
Bleaching equipment in pulp & paper industry
Desalination equipment
Heat exchangers
Flanges and manifolds
Alloy 254 SMO is a premium super austenitic stainless steel with enhanced molybdenum and nitrogen content and low carbon composition. This alloy demonstrates exceptional resistance to pitting, crevice corrosion, stress cracking, and corrosion fatigue. With strength nearly double that of standard 300 series stainless steel, Alloy 254 SMO maintains high ductility and impact strength while providing superior performance in high chloride environments including brackish water, seawater, pulp mill bleach plants, and chloride process streams.
Primary Applications
Due to its high molybdenum and nickel content, Alloy 254 SMO is ideally suited for high chloride environments including:
Petroleum production equipment
Saltwater handling systems
Food and chemical processing equipment
Pulp mill bleach systems
Flue gas desulphurization scrubbers
Tall oil distillation columns
Offshore oil & gas production equipment
Desalination equipment
Material Standards
ASTM/ASME: UNS S31254
EURONORM: FeMi35Cr20Cu4Mo2
DIN: 2.4660
Corrosion Resistance Properties
Excellent resistance to pitting and crevice corrosion due to high chromium, molybdenum, and nitrogen content
Very low carbon content minimizes carbide precipitation risk during heating
Superior resistance in chloride-containing waters, suitable for prolonged seawater exposure without crevice corrosion
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...