Mar 7 2013
Topics Covered
Introduction
Chemical Composition
Mechanical Properties
Other Designations
Applications
Introduction
Stainless steel grade 418 is martensitic type of steel that has good corrosion resistance, high harness, toughness and strength.
The following datasheet provides an overview of stainless steel grade 418.
Chemical Composition
The chemical composition of grade 418 stainless steel is outlined in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
82 |
|
Chromium, Cr |
13 |
|
Tungsten, W |
3 |
|
Nickel, Ni |
2 |
Mechanical Properties
The mechanical properties of grade 418 stainless steel are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
895 MPa |
130000 psi |
|
Yield strength (@strain 0.200 %) |
725 MPa |
105000 psi |
|
Modulus of elasticity |
190-210 GPa |
27557- 30457 ksi |
|
Poisson’s ratio |
0.27-0.30 |
0.27-0.30 |
|
Elongation at break |
15% |
15% |
|
Hardness, Rockwell C |
25 |
25 |
Other Designations
Equivalent material to stainless steel grade 418 is SAE 51418.
Applications
The applications of stainless steel grade 418 are as follows:
-
Ducts
-
Stiffeners
-
Exhaust struts
-
Engine braces
-
Turbine exhaust components