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DATA SHEET AISI 444

Stainless steels containing a good amount of chromium but without addition of nickel and other elements capable of forming austenite.

REQUEST INFORMATION
* The values indicated in the tables are approximate and non-binding.
acciai ferritic GO TO PRODUCTS SECTION
for thicknesses and formats available

ALTERNATIVE 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.