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Basic Info.
Product Description
Introduction
F51 duplex steel has excellent corrosion resistance, increased resistance to chloride attack and good resistance to stress corrosion cracking. F51 tensile and yield strength is higher than conventional austenitic or ferritic grades of stainless steel. It has good weldability and good formability.
Duplex steels contain both ferritic and austenitic microstructures. They have a high chromium content and a moderate nickel content. They also caontain Molybdenum. F51 material is too low in nickel to produce a fully austenitic structure, thus producing the duplex microstructure (ferrite and austenite). The main advantage of duplex F51 / 1.4462 / UNS 31803 stainless steel is the combination of properties given by both the austenitic and ferritic structure (austeno-ferritic).
Duplex Stainless F51 Applications
- Process industry components in sulphuric acid, phosphoric acid, ethylene oxide, polypropylene & PVC production
- Equipment handling organic & fatty acids, chemical storage, tankers, heat exchangers
- Marine industry and shipbuilding propellers, shafts, rudders, shaft seals, pumps, bolts, fasteners, valves, instrumentation
- Oil and chemical tankers
- Oil & Gas industry pumps, valves, pipe, vessels, wellhead equipment, subsea equipment, separators, heat exchangers
- Pollution control systems, effluent scrubbing, flue gas desulphurisation (FGD)
- Waste water treatment, sour water purification
- Pulp & paper industry applications such as pulp liquor heaters, bleach tower linings, digesters, brownstock washers
- Food industry applications including brewery piping, evaporators, hot liquor tanks, presses
Standards
▪ ASTM A182 F51 / F60
▪ ASTM A276 F51 / F60
▪ ASTM A479 F51
▪ AISI F51
▪ BS 318S13 (Wrought)
▪ BS 332C15 (Cast)
▪ WS 1.4462
▪ WS 1.4470
▪ X2CrNiMoN22.5.3
▪ AFNOR Z2CND22.05Az
▪ UNS S31803
▪ UNS S32205
▪ SAF2205 - SANMAC (Brand name)
▪ URANUS 45N (Brand name)
▪ FALC223 (Brand name)
Duplex Stainless F51 Chemical Composition
| Weight% | C | Mn | P | S | Si | Cr | Ni | Mo | N |
| Duplex F51 | 0.03 max | 2.0 max | 0.03 max | 0.02 max | 1 max | 21-23 | 4.5-6.5 | 2.5-3.5 | 0.80-0.20 |
Duplex Stainless F51 Mechanical Properties
| Alloy | Tensile Strength N/mm² | Proof Strength 0.2% N/mm² | Elongation (%) | Hardness Brinell |
| F51 | 105 | 55 | 35 | 170-255 |
| F51 | 95 | 50 | 35 | 170-255 |
| F51 stainless steel pipe sizes and specifications | |
| Grade | F51 |
| Cold rolled stainless steel plate | Thickness: 0.3mm- 16.0mm, Width: 1000mm - 2000mm, Length: as requirements, Surface: 2B/BA/SB/8K/HL/1D/2D etc |
| Hot rolled stainless steel sheet | Thickness: 3.0mm - 300mm, Width: 1000mm - 3000mm Length: as requirements, Surface: No.1/pickling |
| Standard | ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303, BS 1449, DN17441, G4305 |
| Stainless steel plate | Thickness: 8.0mm - 300mm, Width: 1000mm - 3000mm Length: as requirements, Surface: No.1/pickling |
| Standard | ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303, BS 1449, DN17441, G4305 |
Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .
Q2: Can I have free sample before making orders?