Properties
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elongation | 23.0 °C | 30 % Show Supplier Material materials with Elongation of 30 % | min. |
Tensile strength | 23.0 °C | 827 MPa Show Supplier Material materials with Tensile strength of 827 MPa | min. |
Yield strength Rp0.2 | 23.0 °C | 415 MPa Show Supplier Material materials with Yield strength Rp0.2 of 415 MPa | min. |
Chemical properties
| Property | Value | Comment | |
|---|---|---|---|
Aluminium | 4 % Show Supplier Material materials with Aluminium of 4 % | ||
Carbon | 0.025 % Show Supplier Material materials with Carbon of 0.025 % | ||
Chromium | 21.5 % Show Supplier Material materials with Chromium of 21.5 % | ||
Iron | Balance | ||
Manganese | 0.15 % Show Supplier Material materials with Manganese of 0.15 % | ||
Molybdenum | 8.7 % Show Supplier Material materials with Molybdenum of 8.7 % | ||
Nickel | 61 % Show Supplier Material materials with Nickel of 61 % | ||
Niobium | 3.5 % Show Supplier Material materials with Niobium of 3.5 % | ||
Phosphorus | 0.02 % Show Supplier Material materials with Phosphorus of 0.02 % | max. | |
Silicon | 0.2 % Show Supplier Material materials with Silicon of 0.2 % | ||
Sulfur | 0.015 % Show Supplier Material materials with Sulfur of 0.015 % | max. | |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Sanicro® 625 is an extremely versatile nickel alloy, suitable for use in both oxidizing and reducing acidic environments, such as: The grade can also be used for a wide range of temperatures from -196°C to 815°C (-321°F to 1500°F). Typical areas of use include hydraulic systems, heat-exchangers and high-temperature applications. Some industrial examples are: | |
| Corrosion properties | Wet corrosion: Sanicro® 625 shows very good resistance to pitting corrosion, intergranular corrosion and is virtually immune to stress corrosion cracking in chloride-containing environments. The grade is able to withstand general corrosion in both severe oxidizing and non-oxidizing acids. Resistance in chloride environments is also extremely good owing to the high PRE number, ≥48. Pitting Resistance Equivalent, PRE = %Cr + 3.3x%Mo + 16x%N High temperature corrosion: In addition to its excellent wet corrosion resistance, Sanicro® 625 is also able to resist oxidation and scaling at high temperature. | |
| Other | Forms of supply: Sanicro® 625 seamless nickel alloy tubing is supplied bright annealed in the outside diameter range 6 - 42 mm (0.25" - 1.625") and wall-thickness 0.89 - 5.0 mm (0.035" - 0.197"). Some dimensions may be supplied annealed and white pickled. Tubing is supplied as: Tolerances Sanicro® 625, OD 6-42 mm EN 10305-1 | |
| Welding | The weldability of Sanicro® 625 is good. Suitable methods of fusion welding are manual metal-arc welding (MMA/SMAW) and gas-shielded arc welding, with the TIG/GTAW method as first choice. For Sanicro® 625, heat-input of <1.2 kJ/mm and interpass temperature of <100°C (210°F) are recommended. A string bead welding technique should be used. Recommended filler metals:
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