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301

Type 301 is an austenitic chromium-nickel stainless steel that is available in the annealed and cold worked conditions. In the annealed condition, Type 301 offers the highest level of stretch formability of any stainless steel and in the heavily cold worked condition offers the highest strength level of any 300 series stainless steel.

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301
SUS301
X5CrNi 17-7
1.4319
12Cr17Ni7

Chemical Composition

The typical chemical composition is shown in the table below.

Grade
Standard
301 Chemical Composition
C
Si
Mn
Cr
Ni
P
S
Mo
Others
≤ %
≤ %
%
%
%
≤ %
≤ %
≤ %
%
301
ASTM A240
0.15
1.0
2.0
16.0 - 18.0
6.0 - 8.0
0.045
0.03
-
N≤ 0.10
1.4319
EN 10088-2
0.15
1.0
2.0
16.0 - 18.0
6.0 - 8.0
0.045
0.03
-
N≤ 0.11
SUS301
JIS G 4304 | JIS G 4305
0.15
1.0
2.0
16.0 - 18.0
6.0 - 8.0
0.045
0.03
-
N≤ 0.10

Mechanical Properties

The mechanical properties are given in the table below.

Grade
Standard
301 Mechanical Properties
Tensile Strength
Yield Strength 0.2%
Elongation >%
Hardness
(MPa) ≥
(MPa) ≥
HRB ≤
HB ≤
301
ASTM A240
517
207
40
95
-
1.4319
EN 10088-2
500
205
45
-
215
SUS301
JIS G 4304 | JIS G 4305
520
205
40
95
207

Properties & Typical Applications

Type 301 is a high strength grade of steel. Its resistance to atmosphere corrosion and its bright, attractive surface make it an excellent choice for decorative structural applications.Applications include automobile molding and trim, wheel cover, conveyor belts, kitchen equipment, roof draining systems, hose clamps, springs, truck and trailer bodies, railway and subway cars.

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