F53 is a duplex (austenitic-ferritic) stainless steel containing about 40 - 50% ferrite in the annealed condition. 2205 has been a practical solution to chloride stress corrosion cracking problems experienced with 304/304L or 316/316L stainless. The high chromium, molybdenum and nitrogen contents provide corrosion resistance superior to 316/316L and 317L stainless in most environments. 2507 is not suggested for operating temperatures up to 600°F
Alloy |
% |
Ni |
Cr |
Mo |
N |
C |
Mn |
Si |
S |
P |
Cu |
F53 |
Min. |
6 |
24 |
3 |
0.24 |
|
|
|
|
|
|
Max. |
8 |
26 |
5 |
0.32 |
0.03 |
1.2 |
0.08 |
0.02 |
0.035 |
0.5 |
Density
|
8.0 g/cm³
|
Melting point
|
1320-1370 ℃
|
Alloy status |
Tensile strength |
Yield strength RP0.2 N/mm² |
Elongation |
Brinell hardness HB |
Solution treatment |
800 |
550 |
15 |
310 |
ASME SA 182, ASME SA 240, ASME SA 479, ASME SA 789, ASME SA 789 Section IV Code Case 2603
ASTM A 240, ASTM A 276, ASTM A 276 Condition A, ASTM A 276 Condition S, ASTM A 479, ASTM A 790
NACE MR0175/ISO 15156
F53(S32760 ) combines high mechanical strength and good ductility with corrosion resistance to marine environments and performs at ambient and sub zero temperatures. High resistance to abrasion, erosion and cavitation erosion and also used in sour service operation
Primarily used for oil & gas and marine applications being typically used for pressure vessels, valves chokes, Xmas trees, flanges and pipework