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301 Stainless Steel Technical Data Sheet

Technical Information for 301

Alloy
UNS Number
SAE Number
  301
  S30100
  30301


GENERAL PROPERTIES

Type 301 is an austenitic stainless steel with a nominal composition of 17 percent chromium and 7 percent nickel. The high strengths of this grade of steel in the six available conditions or tempers, its resistance to atmosphere corrosion and its bright, attractive surface make it an excellent choice for decorative structural applications. Automobile molding and trim, wheel covers, conveyor belts, kitchen equipment, roof drainage systems, hose clamps, springs, truck and trailer bodies, railway and subway cars are some of the major applications for this versatile grade. By varying the chemical composition within the limits set by the ASTM specifications and by temper rolling, a broad range of magnetic and mechanical properties can be obtained for a variety of applications.


RESISTANCE TO CORROSION

Type 301 is resistant to a variety of corrosive media. However, the corrosion properties are not as good as the 18-8 chromium-nickel steels. Its susceptibility to carbide precipitation during welding restricts its use in many applications in favor of Types 304 or 304L.


PHYSICAL PROPERTIES

Melting Point
Density
Specific Gravity
Modulus of Elasticity
in Tension
  2550-2590° F
1399-1421° C
  .29 lb/in³
8.03g/cm³
  8.03
  28 X 106 psi
193 Gpa


MECHANICAL PROPERTIES

Alloy
Temper
Tensile Strength
Minimum
(psi)
Yield Strength
Minimum 0.2% offset
(psi)
% Elongation
in 2" Minimum
Notes
301
1/4 Hard
125,000
75,000
25 %
-
301
1/2 Hard
150,000
110,000
15 %
-
301
Full Hard
185,000
140,000
8 %
-
All values specified are approximate minimums unless otherwise specified. Values are derived from the applicable AMS and ASTM specifications.


CHEMICAL PROPERTIES

Alloy
C
Mn
P
S
Si
Cr
Ni
Mo
Cu
N
Other
301
.15
2.00
.045
.030
.75
16.00-18.00
6.00-8.00
.75
.75
.10
-
All values are maximum values unless otherwise specified. Values are derived from applicable AMS and ASTM specifications.


WELDING

N/A


HEAT TREATMENT

Austenitic stainless steels cannot be hardened by heat treatment.