F22 cl.3 (1.7382/11CrMo9-10)
ASTM A182
Tempéré et Normalisé (+NT) / Recuit (+A)
PROPRIÉTÉS ET UTILISATIONS
ASTM A182 Grade F22 class 3 is a chromium-molybdenum alloy steel. This combination of alloying elements is key to its performance. Chromium enhances the steel's resistance to high-temperature corrosion and oxidation, while molybdenum significantly improves its high-temperature strength and, critically, its creep resistance.
Creep is the tendency of a material to deform slowly and permanently under constant stress at elevated temperatures. It's a critical consideration in high-temperature applications, as components must maintain their shape and structural integrity over long periods. F22 is specifically designed to resist this phenomenon.
ASTM A182 Grade F22 Class 3 is widely used in industries where extreme conditions are the norm:
Power Generation: Critical components in fossil fuel and nuclear power plants, including:
Rotors for turbines / High-pressure, high-temperature piping / Boiler components / Superheater tubes
Petrochemical Industry: Pressure vessels / High-temperature reactors / Piping systems handling hot hydrocarbons / Heat exchangers
Refining: Used in equipment that processes crude oil at high temperatures and pressures.
CORRESPONDANCE DÉSIGNATION INTERNATIONALE
| Acier | EUROPE | ALLEMAGNE | FRANCE | SPAIN | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | W.n. | AFNOR | UNE | B.S. | ASTM | |
| F22 cl.3 |
11CrMo9-10 EN 10222-2 |
~11CrMo9-10 | 1.7380 | ~12CD9-10 | F2632 | 622-515 | ASTM A182 F22 ASME SA182 F22 |
COMPOSITION CHIMIQUE % (ASTM A182)
| C | Mn | Si max | P max | S max | Cr | Mo |
|---|---|---|---|---|---|---|
| 0,05 ÷ 0,15 | 0,30 ÷ 0,60 | 0,50 | 0,040 | 0,040 | 2,00 ÷ 2,50 | 0,87 ÷ 1,13 |
LES LIMITES DE CONCENTRATION DES ÉLÉMENTS NON INDIQUÉS DANS LE TABLEAU PEUVENT ÊTRE DÉRIVÉES DE LA NORME EN 10020.
CARACTÉRISTIQUES MÉCANIQUES
| acier | TEMPÉRATURE DE TEMPÉRÉ 900°C MIN – TEMPÉRATURE DE NORMALISATION 620°C MIN | |||||
| désignation | Re min | Rm min | A min | Z min | Durezza HB | |
| N/mm2 | % | % | max | |||
| F22 cl.3 | 310 | 515 | 20 | 30 | 156÷207 | |
NORMALEMENT DISPONIBLE EN STOCK
| Coloration M.T. | Aciers | Traitement thermique | SURFACE | DIAMETER (mm) |
|---|---|---|---|---|
 |
F22 cl.3 | Tempéré et Normalisé (+NT) |
Ronds laminés Forgé tourné |
40-500 |
 |
F22 cl.3 | Recuit (+A) | Ronds laminés | 40-220 |
 |
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