Dec 17 2012
Topics Covered
Introduction
Chemical Composition
Mechanical Properties
Introduction
Super alloys have an ability to function in environments with high temperatures and severe mechanical stressing, and also where high surface stability is required. They can be strengthened by solid-solution hardening, work hardening, and precipitation hardening. They are found in different shapes. Cobalt-based, iron-based, and nickel-based are the three groups of super alloys.
Hastelloy (r) D-205™ has good corrosion resistance and formability. The following datasheet gives more details about Hastelloy (r) D-205™.
Chemical Composition
The following table shows the chemical composition of Hastelloy (r) D-205™.
|
Element |
Content (%) |
|
Nickel, Ni |
64.47-64.5 |
|
Chromium, Cr |
20 |
|
Iron, Fe |
6 |
|
Silicon, Si |
5 |
|
Molybdenum, Mo |
2.5 |
|
Copper, Cu |
2 |
|
Carbon, C |
0.030 |
Mechanical Properties
The mechanical properties of Hastelloy (r) D-205™ are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (mill annealed) |
786 MPa |
114000 psi |
|
Tensile strength (aged 24 hrs/1000°F) |
979 MPa |
142000 psi |
|
Yield strength (@ strain 0.200%, mill annealed) |
338 MPa |
49000 psi |
|
Elongation at break (in 2in., aged 24hrs/1000°F) |
28.60% |
28.60% |
|
Elongation at break (in 2in., mill annealed) |
56.50% |
56.50% |