Hastelloy˘ C-4
Available in any of the 'profile options'
This Nickel-Chromium-Molybdenum alloy tolerates high temperatures and gives a design freedom in areas where weld geometry makes excessive heat build-up unavoidable. Resistance to general and localised corrosion and stress corrosion cracking is generally similar to Hastelloy C-276.
| Chemical Composition |
Specifications |
Designations |
Key Features |
Typical Applications |
| Element |
Min % |
Max % |
| Cr |
14.00 |
18.00 |
| Mo |
14.00 |
17.00 |
| Fe |
- |
3.00 |
| C |
- |
0.015 |
| Si |
- |
0.08 |
| Co |
- |
2.00 |
| Mn |
- |
1.00 |
| P |
- |
0.04 |
| S |
- |
0.03 |
| Ti |
- |
0.70 |
| Ni |
Bal |
|
ASTM B574
ASTM B619 |
W.NR 2.4610
UNS N06455
AWS 052 |
Excellent resistance to stress-corrosion cracking and to oxidizing atmospheres at high temperature
Exceptional resistance to a wide variety of chemical process environments including, hot contaminated mineral acids, solvents, chlorine, formic and acetic acids, and salt waters. |
Chemical processing |
| Density |
8.64 g/cm³ |
0.312 lb/in³ |
| Melting Point |
1399°C |
2550°F |
| Coefficient of Expansion |
10.8 μm/m °C (20 - 100°C) |
6.0 x 10-6 in/in °F (70 - 212°F) |
| Modulus of Rigidity |
81.2 kN/mm² |
11777 ksi |
| Modulus of Elasticity |
212.4 kN/mm² |
30807 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 |
800 - 1100 |
116 - 159 |
-200 to +400 |
-330 to +750 |
| Spring Temper |
1300 - 1500 |
189 - 218 |
-200 to +400 |
-330 to +750 |
The above tensile strength ranges are typical. If you require different please ask.
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