Ruizhen Stainless Steel

444

Type 444 is a low carbon, low nitrogen, ferritic stainless steel that provides pitting and crevice corrosion resistance superior to most ferritic stainless steels. Applications requiring superior corrosion resistance and resistance to chloride stress corrosion cracking are ideal for this alloy.

444 stainless steel
USA
JP
DE
EUR
CN
ASTM
JIS
DIN
EN
GB
444
SUS444
-
1.4521
019Cr19Mo2NbTi

Chemical Composition

The typical chemical composition is shown in the table below.

Grade
Standard
444 Chemical Composition
C
Si
Mn
Cr
Ni
P
S
Mo
Others
≤ %
≤ %
%
%
%
≤ %
≤ %
≤ %
%
444
ASTM A240
0.025
1.0
1.0
17.5 -19.5
0.03
0.04
0.03
1.75 - 2.50
-
1.4521
EN 10088-2
0.025
1.0
1.0
17 - 20
0.03
0.04
0.015
1.80 - 2.50
Ti: 0.15 - 0.80
SUS444
JIS G 4304 | JIS G 4305
0.025
1.0
1.0
17 - 20
-
0.04
0.03
1.75 - 2.50
-

Mechanical Properties

The mechanical properties are given in the table below.

Grade
Standard
444 Mechanical Properties
Tensile Strength
Yield Strength 0.2%
Elongation >%
Hardness
(MPa) ≥
(MPa) ≥
HRB ≤
HB ≤
444
ASTM A240
415
275
20
96
217
1.4521
EN 10088-2
520
300
20
-
-
SUS444
JIS G 4304 | JIS G 4305
410
245
20
96
200

Properties & Typical Applications

444 stainless steel is an ultra low carbon nitrogen, 18% chromium and 2% molybdenum, high corrosion resistance ferritic stainless steel. The steel is generally stabilized with niobium or titanium to avoid intergranular corrosion after welding. The steel is especially suitable for various water treatment devices. Mainly used in Food processing and wine making equipment, roofing and cladding in marine environments, hot water tanks and geysers, automotive components and heat exchanger tubings.

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