Stainless steels containing a good amount of chromium but without addition of nickel and other elements capable of forming austenite.
GO TO THE PRODUCTS SECTIONALTERNATIVE NAMES
| ASTM | EN | UNS | JIS |
|---|---|---|---|
| 444 | 1.4521 | S44400 | SUS 444 |
CHEMICAL COMPOSITION
| 444 | Chemical Composition - Maximum Value | |||||||
|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | Cr | Ni | P | Mo | Ti+Nb | |
| 0.03 | 1.0 | 1.0 | 17.5-18.5 | 0 | 0.04 | 2 | 4*(C+N)+0,15 0.8(max) |
|
| Typical Value | ||||||||
| 0.03 | 1 | 1.0 | 18 | 0 | 0.02 | 2 | 0.5 | |
MECHANICAL CHARACTERISTICS
| Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | |||
| 450 (500) |
230 (320) |
23 (30) |
90 | 180 |
END USES
Ferritic stainless steel The presence of Chromium and Molybdenum ensures excellent resistance to corrosion and improves its welding ability, strength and formability. Strengths - High resistance to stress corrosion cracking and excellent mechanical properties - Technically competitive compared to Aisi 316 when high formability and stringent aesthetic characteristics are not required - Suitable for various welding procedures with various types of steel without post-welding treatments.
Applications - Heat exchangers - Capacitors, evaporators, boilers, tanks - Pumps and valves - Pipes and ducts, purifiers, recovery boilers - Agro-food industry - Chimney flues - Solar panels.
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