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F51 - Duplex Stainless Steel

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).

Applications

F51 duplex steel is used in heat exchangers, pressure vessel parts, chemical tanks, refineries, drive shafts, flanges and pipes for the oil and gas industries, paper industry, compressor parts and seawater desalination plants.

F51 Duplex Range (Ex-Stock):

Forged/rolled, solution-annealed, machined bars in 3-8 metre lengths (Cut to length if required).

Dia. Metric Dia. Imperial Tolerance
10.00mm 0.394" h9
12.70mm 0.500" h9
16.00mm 0.629" h9
19.05mm 0.750" h9
22.23mm 0.875" h9
25.40mm 1.000" k11
28.58mm 1.125" k11
31.75mm 1.250" k11
35.00mm 1.378" k11
38.10mm 1.500" k11
44.45mm 1.750" k11
47.63mm 1.875" k11
50.80mm 2.000" k11
53.98mm 2.125" k11
57.15mm 2.250" k11
60.33mm 2.376" k11
63.50mm 2.500" k11
69.85mm 2.750" k11
76.20mm 3.000" k11
82.55mm 3.250" k11
88.90mm 3.500" k11
95.25mm 3.750" k11
101.60mm 4.000" k11
107.95mm 4.250" k11
114.30mm 4.500" k11
120.65mm 4.750" k11
127.00mm 5.000" -0 / +1.0mm
139.70mm 5.500" -0 / +1.0mm
152.40mm 6.000" -0 / +1.0mm
165.10mm 6.500" -0 / +1.0mm
177.80mm 7.000" -0 / +1.0mm
190.50mm 7.500" -0 / +1.0mm
203.20mm 8.000" -0 / +1.0mm
215.90mm 8.500" -0 / +1.0mm
220.00mm 8.661" -0 / +1.0mm
228.60mm 9.000" -0 / +1.0mm
241.30mm 9.500" -0 / +1.0mm
254.00mm 10.000" -0 / +1.0mm
266.70mm 10.500" -0 / +1.0mm
280.00mm 11.024" -0 / +1.0mm
304.80mm 12.000" -0 / +2.0mm
332.00mm 13.071" -0 / +2.0mm
357.00mm 14.056" -0 / +2.0mm
383.00mm 15.079" -0 / +2.0mm
408.00mm 16.063" -0 / +2.0mm
433.00mm 17.047" -0 / +3.0mm
459.00mm 18.071" -0 / +3.0mm
484.00mm 19.055" -0 / +3.0mm
510.00mm 20.079" -0 / +3.0mm
540.00mm 21.259" -0 / +4.0mm
560.00mm 22.047" -0 / +6.0mm

 

Call 01902 716333 for nationwide Stainless steel duplex delivery.

Steel Express - Stainless steel suppliers and stockholders delivering throughout the West midlands and nationwide. Stock cut to size as required.Call now to place your order for rapid delivery.

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Based in Wolverhampton, West Midlands, Steel Express are steel suppliers and stockholders. Stock is delivered on our own fleet of vehicles locally and nationally quickly and efficiently on the day we say we will.

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