Eigenschaften
Allgemein
| Property | Temperature | Value |
|---|---|---|
Dichte | 23.0 °C | 8.47 g/cm³ Show Supplier Material materials with Dichte of 8.47 g/cm³ |
Mechanisch
| Property | Temperature | Value |
|---|---|---|
Charpy impact energy, V-notch | 23.0 °C | 100 J Show Supplier Material materials with Charpy impact energy, V-notch of 100 J |
Dehnung | 23.0 °C | 35 % Show Supplier Material materials with Dehnung of 35 % |
Elastizitätsmodul | 20.0 °C | 209 GPa Show Supplier Material materials with Elastizitätsmodul of 209 GPa |
100.0 °C | 202 GPa Show Supplier Material materials with Elastizitätsmodul of 202 GPa | |
200.0 °C | 195 GPa Show Supplier Material materials with Elastizitätsmodul of 195 GPa | |
300.0 °C | 190 GPa Show Supplier Material materials with Elastizitätsmodul of 190 GPa | |
400.0 °C | 185 GPa Show Supplier Material materials with Elastizitätsmodul of 185 GPa | |
500.0 °C | 178 GPa Show Supplier Material materials with Elastizitätsmodul of 178 GPa | |
600.0 °C | 170 GPa Show Supplier Material materials with Elastizitätsmodul of 170 GPa | |
700.0 °C | 162 GPa Show Supplier Material materials with Elastizitätsmodul of 162 GPa | |
800.0 °C | 153 GPa Show Supplier Material materials with Elastizitätsmodul of 153 GPa | |
900.0 °C | 142 GPa Show Supplier Material materials with Elastizitätsmodul of 142 GPa | |
1000.0 °C | 128 GPa Show Supplier Material materials with Elastizitätsmodul of 128 GPa | |
Kriechfestigkeit | 600.0 °C | 440 MPa Show Supplier Material materials with Kriechfestigkeit of 440 MPa |
650.0 °C | 275 MPa Show Supplier Material materials with Kriechfestigkeit of 275 MPa | |
700.0 °C | 170 MPa Show Supplier Material materials with Kriechfestigkeit of 170 MPa | |
750.0 °C | 98 MPa Show Supplier Material materials with Kriechfestigkeit of 98 MPa | |
800.0 °C | 57 MPa Show Supplier Material materials with Kriechfestigkeit of 57 MPa | |
850.0 °C | 30 MPa Show Supplier Material materials with Kriechfestigkeit of 30 MPa | |
900.0 °C | 14 MPa Show Supplier Material materials with Kriechfestigkeit of 14 MPa | |
Schlagfestigkeit, Charpy gekerbt | 23.0 °C | 1250 kJ/m² Show Supplier Material materials with Schlagfestigkeit, Charpy gekerbt of 1250 kJ/m² |
Streckgrenze Rp 0,2 | 20.0 °C | 330 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 330 MPa |
100.0 °C | 290 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 290 MPa | |
200.0 °C | 265 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 265 MPa | |
300.0 °C | 260 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 260 MPa | |
400.0 °C | 260 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 260 MPa | |
450.0 °C | 255 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 255 MPa | |
500.0 °C | 265 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 265 MPa | |
550.0 °C | 260 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 260 MPa | |
600.0 °C | 255 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 255 MPa | |
650.0 °C | 245 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 245 MPa | |
700.0 °C | 240 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 240 MPa | |
750.0 °C | 225 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 225 MPa | |
800.0 °C | 215 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 215 MPa | |
850.0 °C | 200 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 200 MPa | |
900.0 °C | 190 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 190 MPa | |
1000.0 °C | 100 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 100 MPa | |
Zugfestigkeit | 20.0 °C | 730 MPa Show Supplier Material materials with Zugfestigkeit of 730 MPa |
100.0 °C | 600 MPa Show Supplier Material materials with Zugfestigkeit of 600 MPa | |
200.0 °C | 580 MPa Show Supplier Material materials with Zugfestigkeit of 580 MPa | |
300.0 °C | 560 MPa Show Supplier Material materials with Zugfestigkeit of 560 MPa | |
400.0 °C | 540 MPa Show Supplier Material materials with Zugfestigkeit of 540 MPa | |
450.0 °C | 530 MPa Show Supplier Material materials with Zugfestigkeit of 530 MPa | |
500.0 °C | 650 MPa Show Supplier Material materials with Zugfestigkeit of 650 MPa | |
550.0 °C | 645 MPa Show Supplier Material materials with Zugfestigkeit of 645 MPa | |
600.0 °C | 640 MPa Show Supplier Material materials with Zugfestigkeit of 640 MPa | |
650.0 °C | 625 MPa Show Supplier Material materials with Zugfestigkeit of 625 MPa | |
700.0 °C | 610 MPa Show Supplier Material materials with Zugfestigkeit of 610 MPa | |
750.0 °C | 570 MPa Show Supplier Material materials with Zugfestigkeit of 570 MPa | |
800.0 °C | 450 MPa Show Supplier Material materials with Zugfestigkeit of 450 MPa | |
850.0 °C | 350 MPa Show Supplier Material materials with Zugfestigkeit of 350 MPa | |
900.0 °C | 250 MPa Show Supplier Material materials with Zugfestigkeit of 250 MPa | |
1000.0 °C | 120 MPa Show Supplier Material materials with Zugfestigkeit of 120 MPa | |
Thermisch
| Property | Temperature | Value |
|---|---|---|
Koeffizient der thermischen Ausdehnung | 100.0 °C | 1.25E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.25E-5 1/K |
200.0 °C | 1.3E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.3E-5 1/K | |
300.0 °C | 1.33E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.33E-5 1/K | |
400.0 °C | 1.36E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.36E-5 1/K | |
500.0 °C | 1.39E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.39E-5 1/K | |
600.0 °C | 1.45E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.45E-5 1/K | |
700.0 °C | 1.52E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.52E-5 1/K | |
800.0 °C | 1.57E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.57E-5 1/K | |
900.0 °C | 1.62E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.62E-5 1/K | |
1000.0 °C | 1.66E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.66E-5 1/K | |
Schmelzpunkt | 1290 - 1350 °C Show Supplier Material materials with Schmelzpunkt of 1290 - 1350 °C | |
Spezifische Wärmekapazität | 100.0 °C | 496 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 496 J/(kg·K) |
200.0 °C | 521 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 521 J/(kg·K) | |
300.0 °C | 538 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 538 J/(kg·K) | |
400.0 °C | 555 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 555 J/(kg·K) | |
500.0 °C | 573 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 573 J/(kg·K) | |
600.0 °C | 620 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 620 J/(kg·K) | |
700.0 °C | 654 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 654 J/(kg·K) | |
800.0 °C | 663 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 663 J/(kg·K) | |
900.0 °C | 677 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 677 J/(kg·K) | |
1000.0 °C | 684 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 684 J/(kg·K) | |
1100.0 °C | 695 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 695 J/(kg·K) | |
1200.0 °C | 705 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 705 J/(kg·K) | |
Wärmeleitfähigkeit | 100.0 °C | 12.4 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 12.4 W/(m·K) |
200.0 °C | 14.2 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 14.2 W/(m·K) | |
300.0 °C | 16 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 16 W/(m·K) | |
400.0 °C | 17.7 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 17.7 W/(m·K) | |
500.0 °C | 19.3 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 19.3 W/(m·K) | |
600.0 °C | 21.5 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 21.5 W/(m·K) | |
700.0 °C | 26.8 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 26.8 W/(m·K) | |
800.0 °C | 26.8 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 26.8 W/(m·K) | |
900.0 °C | 26.7 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 26.7 W/(m·K) | |
1000.0 °C | 28.2 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 28.2 W/(m·K) | |
1100.0 °C | 29.6 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 29.6 W/(m·K) | |
Elektrisch
| Property | Temperature | Value |
|---|---|---|
spezifischer Widerstand | 20.0 °C | 1.25E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.25E-6 Ω·m |
100.0 °C | 1.26E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.26E-6 Ω·m | |
200.0 °C | 1.27E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.27E-6 Ω·m | |
300.0 °C | 1.29E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.29E-6 Ω·m | |
400.0 °C | 1.31E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.31E-6 Ω·m | |
500.0 °C | 1.32E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.32E-6 Ω·m | |
600.0 °C | 1.31E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.31E-6 Ω·m | |
700.0 °C | 1.3E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.3E-6 Ω·m | |
800.0 °C | 1.29E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.29E-6 Ω·m | |
900.0 °C | 1.28E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.28E-6 Ω·m | |
1000.0 °C | 1.28E-6 Ω·m Show Supplier Material materials with spezifischer Widerstand of 1.28E-6 Ω·m | |
Magnetisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Relative magnetische Permeabilität | 23.0 °C | 1 [-] Show Supplier Material materials with Relative magnetische Permeabilität of 1 [-] | max. |
Chemical properties
| Property | Value | Comment |
|---|---|---|
Aluminium | 0.4 % Show Supplier Material materials with Aluminium of 0.4 % | max. |
Chrom | 21 - 23 % Show Supplier Material materials with Chrom of 21 - 23 % | |
Eisen | 5 % Show Supplier Material materials with Eisen of 5 % | max. |
Kobalt | 1 % Show Supplier Material materials with Kobalt of 1 % | max |
Kohlenstoff | 0.03 % Show Supplier Material materials with Kohlenstoff of 0.03 % | max. |
Mangan | 0.5 % Show Supplier Material materials with Mangan of 0.5 % | max. |
Molybdän | 8 - 10 % Show Supplier Material materials with Molybdän of 8 - 10 % | |
Nickel | 58 - 71 % Show Supplier Material materials with Nickel of 58 - 71 % | |
Niobium | 3.2 - 3.8 % Show Supplier Material materials with Niobium of 3.2 - 3.8 % | Nb+Ta |
Phosphor | 0.01 % Show Supplier Material materials with Phosphor of 0.01 % | max |
Schwefel | 0.01 % Show Supplier Material materials with Schwefel of 0.01 % | max |
Silizium | 0.4 % Show Supplier Material materials with Silizium of 0.4 % | max. |
Tantal | 3.2 - 3.8 % Show Supplier Material materials with Tantal of 3.2 - 3.8 % | Nb+Ta |
Titan | 0.4 % Show Supplier Material materials with Titan of 0.4 % | max. |
Technological properties
| Property | ||
|---|---|---|
| Application areas | It is used for high temperature applications up to 1,000°C, acc. to ASME Code for Pressure Vessels. Typical applications include: Flaring systems in refineries and offshore platforms, Recuperators and compensators for hot exhaust gases, Components in the oil and gas extraction, Superheater tubes in waste incineration plants. | |
| Cold Forming | Cold working should be carried out on annealed material. VDM® Alloy 625 has a higher work hardening rate than austenitic stainless steels. This must be taken into account during design and selection of forming tools and equipment and during the planning of the forming processes. Intermediate annealing may be necessary at high degrees of cold working deformation. After cold working with more than 15% of deformation the material should be solution annealed. | |
| Corrosion properties | VDM® Alloy 625 (grade 2) is highly resistant to many corrosive gas atmospheres. It shows good resistance to carburizing and scaling under static and cyclic conditions, resistance to nitriding and good resistance to gases containing halogens and hydrogen chloride. | |
| General machinability | VDM® Alloy 625 should be machined in the annealed condition. As the alloy is prone to work-hardening, low cutting speeds and appropriate feed rates should be used and the tool should be engaged at all times. Sufficient chip depths are important to get below the work-hardened surface layer. The optimum dissipation of heat through the use of large amounts of appropriate, preferably water containing cooling lubricants is crucial for a stable machining process. | |
| Heat Treatment | The solution heat treatment should be carried out in the temperature range between 1,080°C and 1,160°C (1,976 and 2,120°F), preferably at 1,120°C (2,048°F). Water quenching should be carried out rapidly to achieve optimum corrosion characteristics. Workpieces of less than 3 mm (0.12 in) thickness can be cooled down using air nozzles. The workpiece has to be put into the pre-heated furnace. The furnace should be heated up to the maximum annealing temperature. The cleanliness requirements listed under ‘Heating’ must be complied with. | |
| Hot forming | VDM® Alloy 625 may be hot worked in the temperature range 1,150 to 900°C (2,100 to 1,650°F) with subsequent rapid cooling down in water or by using air. The workpieces should be placed in the furnace heated to hot working temperature in order to heat up. Once the hot working temperature has been reached again, a retention time of 60 minutes for each 100 mm (4 in) of workpiece thickness is recommended. Afterwards, workpieces should be removed immediately and formed during the stated temperature window. If the material temperature falls to 950°C (1,742°F), the workpiece must be reheated. Heat treatment after hot working is recommended in order to achieve optimum microstructure and corrosion resistance. | |
| Other | VDM® Alloy 625 has a face-centered cubic lattice. | |
| Welding | VDM® Alloy 625 can be joined by all conventional welding processes. These include GTAW (TIG), TIG hot wire, plasma arc, GMAW (MIG/MAG) and MAG-Tandem, submerged arc welding and SMAW (MMA). For welding, VDM® Alloy 625 should be in the soft or solution annealed condition and be free from scale, grease and markings. Pulsed arc welding is the preferred technique. For the MAG process the use of a multi-component shielding gas (Ar + He + H2 + CO2) is recommended. When welding roots, sufficient protection of the root needs to be ensured with pure argon (Ar 4.6) so that the welding seam is free of oxides after welding. Root backing is also recommended for the first intermediate pass following the initial root pass and in some cases even for the second pass, depending on the weld set-up. Any discoloration/heat tint should be removed preferably by brushing with a stainless steel wire brush while the weld metal is still hot. | |