Feb 26 2013
Topics Covered
Introduction
Chemical Composition
Mechanical Properties
Other Designations
Applications
Introduction
Grade 301 is an austenitic stainless steel that has a high work-hardening rate. Grade 301LN stainless steel is similar to grade 301L but with low carbon for improved ductility and welding of heavy sections. Grade 301LN has higher nitrogen content so as to compensate for the lower carbon content.
The following datasheet provides an overview of grade 301LN stainless steel.
Chemical Composition
The chemical composition of grade 301LN stainless steel is outlined in the following table.
|
Element |
Content (%) |
|
Iron, fe |
Balance |
|
Chromium, Cr |
16-18 |
|
Nickel, Ni |
6-8 |
|
Manganese, Mn |
2 max |
|
Silicon, Si |
1 max |
|
Nitrogen, N |
0.07-0.20 |
|
Phosphorous, P |
0.045 max |
|
Carbon, C |
0.03 max |
|
Sulfur, S |
0.03 |
Mechanical Properties
The mechanical properties of grade 301LN stainless steel are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (Outokumpu typical, cold rolled strip/sheet; EN 10002-1) |
765 MPa |
111000 psi |
|
Yield strength (@strain 0.200 %) |
350 MPa |
50800 psi |
|
Elastic modulus |
193 GPa |
27992 ksi |
|
Poisson’s ratio |
0.300 |
0.300 |
|
Elongation at break (in 50 mm) |
47% |
47% |
Other Designations
Equivalent materials to grade 301LN stainless steel are given below.
-
ASTM A666
-
JIS G4305
-
EN 10088-2
-
EN 1.4318
-
JIS SUS 301L
Applications
Grade 301LN stainless steel is primarily used in rail car structural components mostly roll-formed, brake-pressed or stretch-formed to profiles; however it can also be used flat.
The following are the other applications of grade 301LN steel:
-
Springs
-
Toaster
-
Curtain walls
-
Screen frames
-
Airframe sections
-
Stove element clips
-
Automotive wheel covers
-
Highway trailer components
-
Wiper blade holders and clips