F55 / S32760 / 1.4501  Super Duplex Stainless Steel 

Certified 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. 
For more information on our F55 product, to request a quote or to place an order, please contact our helpful sales team. 
12.00 
0.472 
0.0 
12.70 
0.500 
0.0 
15.88 
0.625 
0.0 
19.05 
0.750 
0.0 
20.00 
0.787 
0.0 
22.23 
0.875 
0.0 
24.00 
0.945 
0.0 
25.40 
1.000 
0.1 
28.58 
1.125 
0.1 
30.00 
1.181 
0.1 
31.75 
1.250 
0.1 
34.93 
1.375 
0.1 
36.00 
1.417 
0.1 
38.10 
1.500 
0.1 
41.28 
1.625 
0.1 
44.45 
1.750 
0.1 
47.63 
1.875 
0.1 
50.80 
2.000 
0.1 
57.15 
2.250 
0.1 
60.33 
2.375 
0.2 
63.50 
2.500 
0.2 
69.85 
2.750 
0.2 
76.20 
3.000 
0.2 
82.55 
3.250 
0.2 
88.90 
3.500 
0.2 
95.25 
3.750 
0.2 
101.60 
4.000 
0.2 
107.95 
4.250 
0.2 
114.30 
4.500 
0.2 
120.65 
4.750 
0.2 
127.00 
5.000 
-0/+1 
133.35 
5.250 
-0/+1 
139.70 
5.500 
-0/+1 
152.40 
6.000 
-0/+1 
158.75 
6.250 
-0/+1 
165.10 
6.500 
-0/+1 
177.80 
7.000 
-0/+1 
190.50 
7.500 
-0/+1 
203.20 
8.000 
-0/+1 
215.90 
8.500 
-0/+1 
228.60 
9.000 
-0/+1 
241.30 
9.500 
-0/+1 
250.00 
9.843 
-0/+1 
254.00 
10.000 
-0/+1 
260.00 
10.236 
-0/+3 
270.00 
10.629 
-0/+3 
281.00 
11.063 
-0/+3 
306.00 
12.047 
-0/+3 
320.00 
12.598 
-0/+3 
332.00 
13.071 
-0/+3 
357.00 
14.055 
-0/+3 
383.00 
15.079 
-0/+3 
408.00 
16.063 
-0/+3 
Note: Non stock items are available ex-mill, in short lead times. Please contact us with your enquiry. 
Intoco F55 Bar Tolerance Chart 

Detailed Description 

Intoco 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 super duplex stainless steel conforming to ASTM / AISI / F55 in round bar and plate / sheet form. 
Our 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. 

WANT MORE INFORMATION? 

For more information on our F55 product, to request a quote or to place an order, please contact our helpful sales team. 
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