ASTM B575/Uns N06455/ASTM B619 Superalloy Sheet For Nuclear Fuel Processing Hastelloy C-4 Nickel Alloy Plate
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Hastelloy C-4 is a Nickel-Chromium-Molybdenum alloy that offers exceptional stabilization at the elevated temperatures, good ductility and resistance to corrosion properties. It retains its characteristics even after aging up to 1200oF to 1900oF or 649oC to 1038oC. Alloy C-4 offers resistance to grain development precipitation in the welding area so it is highly suitable for the chemical processes in the welding condition. It offers extremely high resistance to stress corrosion cracking and oxidizing conditions up to 1900oF or 1038oC. Hastelloy C-4 offers resistance to mineral acids, organic and inorganic acids, sea water and brine solutions. It has service temperature up to 1900oF or 1038oC. Outstanding resistance to high temperature corrosion and stress corrosion cracking. Great material for use in chemical processing plants and nuclear fuel processing.
Other Designations
▪ ASTM B574
▪ ASTM B575
▪ ASTM B619
▪ ASTM B622
▪ ASTM B626
▪ DIN 2.4610
Hastelloy C4 Chemical Composition
The chemical composition of Hastelloy C-4 is outlined in the following table.
| Element | Content (%) |
| Chromium, Cr | 14-18 |
| Molybdenum, Mo | 14-17 |
| Iron, Fe | 3 max |
| Cobalt, Co | 2 max |
| Manganese, Mn | 1 max |
| Titanium, Ti | 0.7 max |
| Silicon, Si | 0.08 max |
| Phosphorus, P | 0.04 max |
Hastelloy C4 Mechanical Properties
The mechanical properties of Hastelloy C-4 are outlined in the following table.
| Properties | Metric | Imperial |
| Tensile strength | 738 MPa | 107000 psi |
| Yield strength ( @ 0.2% offset) | 492 MPa | 71400 psi |
| Elastic modulus | 211 GPa | 30600 ksi |
| Elongation at break (in 50.8 mm) | 42% | 42% |
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