This alloy was developed to broaden the application range of one alloy. With the addition of Copper to the Nickel-Chromium-Molybdenum system, Hastelloy C-2000 is resistant to an extensive range of corrosive chemicals, including sulphuric, hydrochloric and hydrofluoric acids. The combination of Molybdenum and Copper provide excellent corrosion resistance to reducing media, while the high Chromium content gives good oxidising resistance.
Element | Min % | Max % |
Cr | 22.00 | 24.00 |
Mo | 15.00 | 17.00 |
Fe | – | 3.00 |
C | – | 0.01 |
Si | – | 0.08 |
Co | – | 2.00 |
Mn | – | 0.50 |
P | – | 0.025 |
S | – | 0.01 |
Cu | 1.30 | 1.90 |
Al | – | 0.50 |
Ni | bal |
Density
8.5 g/cm³ | 0.307 lb/in³
Melting Point
1399°C | 2550°F
Coefficient of Expansion
12.4 μm/m °C (20 – 100°C) | 6.9 x 10-6 in/in °F (70 – 212°F)
Modulus of Rigidity
79 kN/mm² | 11458 ksi
Modulus of Elasticity
206 kN/mm² | 29878 ksi
Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | |
°C | °F | ||||
Annealed or Spring Temper | Stress Relieve | 400 – 450 | 750 – 840 | 2 | Air |
Properties
Condition | Approx. tensile strength | Approx. operating temperature | ||
N/mm² | ksi | °C | °F | |
Annealed | 700 – 1000 | 102 – 145 | -200 to +400 | -330 to +750 |
Spring Temper | 1300 – 1600 | 189 – 232 | -200 to +400 | -330 to +750 |