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Technical Information for
301
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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 factor 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
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8.03
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28 X 106 psi
193 Gpa
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MECHANICAL PROPERTIES
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Alloy
|
Temper
|
Tensile
Strength
Minimum
(psi)
|
Yield
Strength
Minimum 0.2% offset
(psi)
|
%
Elongation
in 2" Minimum
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Notes
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| 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
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Alloy
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C
|
Mn
|
P
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S
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Si
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Cr
|
Ni
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Mo
|
Cu
|
N
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Other
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| 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
HEAT TREATMENT
| Austenitic stainless steels cannot be hardened by heat treatment. |
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