F55 / S32760 / 1.4501

Super Duplex Stainless Steel

Corresponding Standards:
EN/DIN 1.4501
X2CrNiMoCuWN25.7.4
AFNOR Z3CND25.06Az
UNS S32760
AISI F55 (A182 / A276 / A479)
GOST 12Kh13
NORSOK M630 MDS D57 BAR
M630 MDS D54 FORGINGS
M630 MDS D55 PLATE
M630 MDS D56 CASTINGS
M650 Qualification of Manufacturer
OTHER NACE MR01-75
ISO 15156
EN 10088-3
PED 97/23/EC
ASTM G48 Method A
ASTM A751 COMPOSITION
ASTM A388 U/T
API 6A - PSL 4
Similar to:
UNS S32550 / S32520 / FERRALIUM 255-SD50
UNS S32750 / AISI-F53 / 1.4410
Z3CNDU25.07Az
X2CrNiMoCuN25.6.3
1.4507
Uranus 52N
SAF 25.07 SANMAC
F55 Super Duplex Range (Ex-Stock):
Forged/Rolled, Solution-annealed, Machined bars in 3-8 metre lengths (Cut to length if required). Full mill Certs with goods.
dia. Metric dia. Imperial Tol.
12.00 0.472" h9
12.70 0.500" h9 / k12
15.88 0.625" h9
19.05 0.750" h9
22.23 0.875" h9
25.40 1.000" k11
28.58 1.125" k11
31.75 1.25" k11
34.93 1.375" k11
38.10 1.500" k11
41.28 1.625" k11
44.45 1.750" k11
47.63 1.875" k11
50.80 2.000" k11
57.15 2.250" k11
60.33 2.375" k11
63.50 2.500" k11
69.85 2.750" k11
76.20 3.000" k11
82.55 3.250" k11
88.90 3.500" k11
95.25 3.750" k11
101.60 4.000" k11
107.95 4.250" k11
114.30 4.500" k11
120.65 4.750" k11
127.00 5.000" -0 / +1mm
133.35 5.250" -0 / +1mm
139.70 5.500" -0 / +1mm
152.40 6.000" -0 / +1mm
165.10 6.500" -0 / +1mm
177.80 7.000" -0 / +1mm
190.50 7.500" -0 / +1mm
200.00 7.874" DIN 1013
203.20 8.000" -0 / +1mm
215.90 8.500" -0 / +1mm
228.60 9.000" -0 / +1mm
241.30 9.500" -0 / +1mm
250.00 9.843" DIN 1013
254.00 10.000" -0 / +1mm
279.40 11.000" -0 / +4mm
304.80 12.000" -0 / +4mm
330.20 13.000" -0 / +4mm
355.6 14.000" -0 / +4mm
381.0 15.000" -0 / +4mm
406.4 16.000" -0 / +6mm
431.8 17.000" -0 / +6mm
457.2 18.000" -0 / +6mm
482.6 19.000" -0 / +6mm
508.0 20.000" -0 / +8mm
558.8 22.000" -0 / +8mm
Note: Non stock items are available ex-mill, in short lead times. Please contact us with your enquiry.
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Intoco, a UK based manufacturing company, specialise in no-compromise manufacture using state of the art CNC equipment, and the finest steels available. We are also a very large stockholder of hot work tool steels, stainless steels (440c / 1.4125 / 4125 / X105CrMo17), duplex stainless steel (ASTM A182 A276 / AISI / F51 EN / DIN (Werkstoff) 1.4462 and X2CrNiMoN22-5-3, UNS 31803 / S31803 / S32205, Afnor Z2CND22-5Az, BS318S13, SS2377, BS332C15, EN (10283) 1.4770, branded steel SAF2205, URANUS 45N, FALC223) and now Super Duplex stainless steel conforming to ASTM / AISI / F55 in round bar and plate / sheet form.

The super duplex material is NACE and NORSOK approved and has a PREN (pitting resistance equivalent number - an empirical relationship to predict the pitting resistance of austenitic and duplex stainless steels) of 40. "Super" duplex grades have enhanced pitting and crevice corrosion resistance compared with the ordinary austenitic or duplex types. This is due to the further additions of chromium, molybdenum, and nitrogen to these grades. It also conforms, or is similar to, EN / DIN (Werkstoff) 4501 / 1.4501 / X2CrNiMoCuWN25.7.4 / UNS 32760 / S32760, UNS - ASTM A276 S32760 / AISI F55 / GOST 12Kh13 / Afnor Z3CND25.06Az. Also 1.4410 / UNS S32550 / UNS S32750 / Z3CNDU25.07Az / SS2328 / X2CrNiMoCuN25.6.3 / SAF 2507 SANMAC / Uranus 52N.

Super Duplex 1.4501 / 32760 / F55 Stainless steel Acier, inoxydable, Rostfreier, Stahl, Acciaio, Inossidabile, Aco, Inoxidável, Acero, Inox, Inoxidables, Rostfrei, Roestvrij materials get their name, duplex, because they contain both ferritic and austenitic microstructure. They have a high chrome / chromium content (25%) and a moderate nickel content (7%). They also have 3 to 4 % Moly./ Molybdenum. At this level, F55 / UNS 32760 / 1.4501 materials, are too low in nickel to produce a fully austenitic structure, thus producing the duplex microstructure (ferrite and austenite). The main advantage of super-duplex F55 / UNS 32760 / 1.4501 stainless steel is the combination of properties given by both the austenitic and ferritic structure (austeno-ferritic).

Super duplex stainless steels Acier, inoxydable, Rostfreier, Stahl, Acciaio, Inossidabile, Aco, Inoxidável, Acero, Inox, Inoxidables, Rostfrei, Roestvrij to F55 / UNS S32760 / EN / DIN (Werkstoff) 4501 / 1.4501 / X2CrNiMoCuWN25.7.4 / UNS 32760 / UNS - ASTM A276 S32760 / AISI F55 / GOST 12Kh13 / Afnor Z3CND25.06Az have excellent corrosion resistance, increased resistance to chloride attack, good resistance to stress corrosion cracking, tensile and yield strength higher then conventional austenitic or ferritic grades of stainless steel, good weldability and good formability.

Stainless steel super-duplex grade F55 / UNS S32760 / EN / DIN (Werkstoff) 4501 / 1.4501 / X2CrNiMoCuWN25.7.4 / UNS 32760 / UNS - ASTM A276 S32760 / AISI F55 / GOST 12Kh13 / Afnor Z3CND25.06Az, can be used for heat exchangers, chemical tanks, refineries, shafts (marine, etc) pressure vessel parts, flanges, fittings & pipes for the oil and gas industries and offshore technology, paper industry, compressor parts and seawater desalination plants amongst many other applications. Intoco offer super duplex materials in round bar (rolled / forged) and sheet / plate, complete with the stainless mill certs conforming to EN10204/3.1 & 3.2 if required with certification supplied by Lloyd's Register, etc. ASTM/AISI F51 / UNS 31803 / 1.4462 Duplex stainless steel Acier, inoxydable, Rostfreier, Stahl, Acciaio, Inossidabile, Aco, Inoxidável, Acero, Inox, Inoxidables, Rostfrei, Roestvrij.

The above text is given as an overview of Super Duplex Stainless Steel and is not to be relied upon for a specification.