Jan 4 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications
Introduction
Super alloys or high performance alloys have the capacity to function at very high temperatures and in severe mechanical stress environments, and also where high surface stability is required. They have good creep and oxidation resistance, and can be produced in a variety of shapes. They can be strengthened by solid-solution hardening, work hardening, and precipitation hardening. There are three groups of alloys, namely cobalt-based, nickel-based, and iron-based alloys.
Hastelloy(r) C-2000(r) is a nickel-chromium–molybdenum alloy. It is most commonly available in wrought forms at the mill level. The following datasheet gives an overview of Hastelloy(r) C-2000(r).
Chemical Composition
The following table shows the chemical composition of Hastelloy(r) C-2000(r).
|
Element |
Content (%) |
|
Nickel, Ni |
59 |
|
Chromium, Cr |
23 |
|
Molybdenum, Mo |
16 |
|
Copper, Cu |
1.6 |
|
Silicon, Si |
0.080 |
|
Carbon, C |
0.010 |
Physical Properties
The physical properties of Hastelloy(r) C-2000(r) are highlighted in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
8.50 g/cm³ |
0.307 lb/in³ |
Mechanical Properties
The mechanical properties of Hastelloy(r) C-2000(r) flat products are given in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (@ thickness 25.4 mm/ 1.00 in.) |
752 MPa |
109000 psi |
|
Yield strength (@ 20°C/ 68°F, thickness 12.7 mm/0.5000 in, 0.2% offset) |
345 MPa |
50000 psi |
|
Elongation at break (@ thickness 6.35 mm/0.250 in., in 50.8 mm) |
62% |
62% |
Thermal Properties
The thermal properties of Hastelloy(r) C-2000(r) are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@ 25-100°C/ 77-212°F) |
12.4 µm/m°C |
6.89 µin/in°F |
|
Thermal conductivity |
9.10 W/mK |
63.2 BTU in/hr.ft².°F |
Applications
Hastelloy(r) C-2000(r) can be used in applications requiring high metallurgical stability in reducing or oxidizing atmosphere. It is also used in chemical process equipment applications.