Feb 28 2013
Topics Covered
Introduction
Chemical Composition
Mechanical Properties
Other Designations
Applications
Introduction
Grade 301 stainless steel strip is ideal for the manufacture of high strength room temperature springs, and when it is tempered to high strength levels, the steel maintains its ductility whether stress relieving is performed or not.
Stainless steel grade 301Si is a high silicon content steel than grade 301. It is an austenitic steel.
The following datasheet provides an overview of grade 301Si stainless steel.
Chemical Composition
The chemical composition of grade 301Si stainless steel is outlined in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
Balance |
|
Chromium, Cr |
16-18 |
|
Nickel, Ni |
6-8 |
|
Manganese, Mn |
2 |
|
Silicon, Si |
1-1.35 |
|
Molybdenum, Mo |
1 |
|
Sulfur, S |
0.3 |
|
Carbon, C |
0.15 |
|
Phosphorous, P |
0.045 |
|
Nitrogen, N |
0.02 |
Mechanical Properties
The mechanical properties of grade 301Si stainless steel are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
965-1861 MPa |
140000-270000 psi |
|
Yield strength |
275-1137 MPa |
40000-165000 psi |
|
Elongation at break (in 50 mm) |
1-25% |
1-25% |
|
Modulus of elasticity |
193053 MPa |
28000000 psi |
Other Designations
Equivalent material to grade 301Si stainless steel is ASTM A666.
Applications
Grade 301Si stainless steel is widely used for extremely high strength spring applications.