SUPER DUPLEX S32760 / F55 / 1.4501
DESCRIPTION
1.Providing higher strengths than both austenitic and 22% Cr Duplex Stainless Steels UNS S32760 (F55) is suited to a variety of applications in industries such as Oil & Gas, CPI(Chemical Processing Industries), and Marine environments.
UNS S32760 (F55 / 1.4501) is listed in NACE MR 01 75 for sour service and having gained ASME Approval for Pressure Vessel applications.
strength levels by simple heat treatments to Conditions RH 950 and TH 1050. The exceptionally high strength of Condition CH 900 offers many advantages where limited ductility and workability are permissible. In its heat treated condition, this alloy provides exceptional mechanical properties at temperatures up to 900 °F (482 °C).
Material Data Sheet
Alloy | Super Duplex S32760 |
Material No. | 1.4501 |
EN symbol (short) | X2CrNiMoCuWN25-7-4 |
UNS | UNS S32760 |
Registered work label | ASTM A182/ F55 |
Chemical composition
C | Cr | Cu | Fe | Mo | Mn |
% | ≤ % | ≤ % | % | % | |
0.030 max | 24<26 | 0.5<1.0 | Reminder | 3.0<4.0 | 1.0 max |
N | Ni | P | S | Si | W |
% | % | % | % | ≤ % | % |
0.20<0.30 | 6.0<8.0 | 0.030 max | 0.010 max | 0.010 max | 0.50<1.0 |
Special Properties
Youngs Modulus N/mm2 | Density kg/dm³: | Magnetic Permeability |
199 x 10³ | 7.81 g/cm³ | 33 |
Excellent Resistance to pitting and crevice / erosion corrosion
Specifications
● EN 10088-3 1.4501
● ASTM A473 UNS S32760 Forgings
● ASTM A182 Grade F55 UNS S32760 Forged Flanges
● ASTM A240 UNS S32760 Sheet and Plate
● ASTM A479 UNS S32760 Bar
● ASTM A276 UNS S32760 Condition A
● NACE MR 01-75
The material comes with a 3.1 certification.
3.2 certification are available with surcharge.
Mechanical Properties
0.2% Proof Stress (N/mm2 ) [ksi] minimum 550 | 550 [79.8] |
Ultimate Tensile Strength (N/mm2) [ksi] minimum | 750 [108.8]] |
Elongation (%) minimum | 25 |
Hardness (HBN) | 270max |
Reduction of Cross Section Area (%) minimum | 45 |
Charpy V-notch Impact at ambient Temp (J) [ft.lb] | 80min [59min] |
Charpy V-notch Impact at -46°C (J) [ft.lb] | 45av, 35min [33av, 25.8min] |