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Help CenterSoft Magnetic Alloy Bar for Industrial Use 1j06, 1j12, 1j17, 1j18, 1j30, 1j76, 1j51, 1j54, 1j46, 1j80, 1j87
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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).
F51 Stainless Steel 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
F51 Stainless Steel 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)
F51 Stainless Steel 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 |
| 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 |
| Specification | EN, DIN, JIS, ASTM, BS, ASME, AISI, ISO |
| Standard | ASTM A276/ASME SA276, ASTM A479/ASME SA479 & ASTM A164/ASME SA164 . |
| Stainless steel round Bar | Diameter: 2mm - 600mm |
| Stainless steel bright Bar | Diameter: 2mm - 600mm |
| Stainless steel hex Bar | Dimension: 6mm - 80mm |
| Stainless steel square bar | Dimension: 3.0 - 180mm |
| Stainless steel flat bar | Thickness: 0.5mm - 200mm, Width: 1.5mm - 250 mm |
| Stainless steel angle bar | as requirements |
| Length | Normally 6m, or produce as requirements |
| Surface | Black, Bright. Peeled and Polished, Solution annealed. |
| Delivery condition | cold drawn, hot rolled, forged, grinding, centerless grinding |
| Tolerance | H8, H9, H10, H11, H12, H13,K9, K10, K11, K12 or as per clients' requirements |
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