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|
Grade |
Code |
AISI |
Duplex Stainless Steel |
|
1.4462 |
S 32900 (X3CrNiMoN27-5-2) |
F51 |
Steel Properties
Material 1.4462 is one of the austenitic-ferritic duplex steels. 1.4462 has very good corrosion resistance, with simultaneously high mechanical characteristic values for strength and yield strength. Its austenitic-ferritic structure also makes it possible to use F51 at low temperatures.
Chemical Composition (1.4462)
|
C % |
P % |
Si % |
Mn % |
S % |
Cr % |
Mo % |
Ni % |
AL % |
N % |
|
0,03 max. |
0,03 max. |
1,00 max. |
2,00 max. |
0,02 max. |
21,00 – 23,00 |
2,5 – 3,5 |
4,50 – 6,50 |
- |
0,10 – 0,22 |
Mechanical Properties (Solution Annealed)
|
Condition |
Rp0.2, Mpa |
Rm, Mpa |
Elongation [%] |
Hardness [HB] |
|
Bar & Rod |
≥ 450 |
650 – 880 |
25 |
< 270 |
Suitable For
1.4462 is used on cargo tanks in chemical tankers, pulp and paper industry applications such as digesters and process tanks, oil and gas industry, typically tubular products, flanges, fittings and valves, structural components in bridges.
Remarks
1.4462 (UNS S31803, F51) cannot be hardened by conventional heat treatment, though 1.4462 is a work hardening steel. Duplex can be solution annealed at 1020-1100ºC, water quench.
Specification
1.4462 Dublex Stainless Steel, S 32900, X3CrNiMoN27-5-2, AISI F51
Norm
ASTM A 276/ ASME SA-276, ASTM A 479/ ASME SA-479
