Mar 7 2013
Topics Covered
Introduction
Chemical Composition
Mechanical Properties
Other Designations
Applications
Introduction
Stainless steel grade A240 has a crystal structure that is ferritic, and hence this material is ferromagnetic in soft annealed condition. The high chromium content in this steel helps in replacing standard austenitic grades in certain applications.
The following datasheet provides an overview of stainless steel grade A240.
Chemical Composition
The chemical composition of stainless steel grade A240 is outlined in the following table.
|
Element |
Content (%) |
|
Chromium, Cr |
18 |
|
Titanium + Niobium |
0.6 |
|
Carbon, C |
0.02 |
|
Iron, Fe |
Remainder |
Mechanical Properties
The mechanical properties of stainless steel grade A240 are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (annealed) |
430Nmm2 |
62366 psi |
|
Yield strength (@strain 0.200 %) |
250 Nmm2 |
36259 psi |
|
Modulus of elasticity |
220 GPa |
31908 ksi |
|
Elongation at break |
18 % |
18 % |
Other Designations
Equivalent materials to stainless steel grade A240 are EN 10088-2:2005 and EN 1.4509.
Applications
Stainless steel grade A240 is primarily used in tubular products for automotive industry and for process equipment like heat exchangers.
The other applications of stainless steel grade A240 are as follows:
-
Architectural applications such as elevators and door frames
-
Various structures in catering and household areas