Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 8 g/cm³ Show Supplier Material materials with Density of 8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | -100.0 °C | 201 GPa Show Supplier Material materials with Elastic modulus of 201 GPa | |
0.0 °C | 196 GPa Show Supplier Material materials with Elastic modulus of 196 GPa | ||
20.0 °C | 194 GPa Show Supplier Material materials with Elastic modulus of 194 GPa | ||
100.0 °C | 189 GPa Show Supplier Material materials with Elastic modulus of 189 GPa | ||
200.0 °C | 183 GPa Show Supplier Material materials with Elastic modulus of 183 GPa | ||
300.0 °C | 177 GPa Show Supplier Material materials with Elastic modulus of 177 GPa | ||
400.0 °C | 170 GPa Show Supplier Material materials with Elastic modulus of 170 GPa | ||
500.0 °C | 163 GPa Show Supplier Material materials with Elastic modulus of 163 GPa | ||
600.0 °C | 156 GPa Show Supplier Material materials with Elastic modulus of 156 GPa | ||
700.0 °C | 149 GPa Show Supplier Material materials with Elastic modulus of 149 GPa | ||
800.0 °C | 141 GPa Show Supplier Material materials with Elastic modulus of 141 GPa | ||
900.0 °C | 134 GPa Show Supplier Material materials with Elastic modulus of 134 GPa | ||
1000.0 °C | 127 GPa Show Supplier Material materials with Elastic modulus of 127 GPa | ||
Elongation A5 | 23.0 °C | 30 % Show Supplier Material materials with Elongation A5 of 30 % | for 20 to 800°C |
Hardness, Brinell | 23.0 °C | 210 [-] Show Supplier Material materials with Hardness, Brinell of 210 [-] | max. |
Tensile strength | 20.0 °C | 650 MPa Show Supplier Material materials with Tensile strength of 650 MPa | |
100.0 °C | 630 MPa Show Supplier Material materials with Tensile strength of 630 MPa | ||
200.0 °C | 615 MPa Show Supplier Material materials with Tensile strength of 615 MPa | ||
300.0 °C | 605 MPa Show Supplier Material materials with Tensile strength of 605 MPa | ||
400.0 °C | 590 MPa Show Supplier Material materials with Tensile strength of 590 MPa | ||
500.0 °C | 555 MPa Show Supplier Material materials with Tensile strength of 555 MPa | ||
600.0 °C | 480 MPa Show Supplier Material materials with Tensile strength of 480 MPa | ||
700.0 °C | 340 MPa Show Supplier Material materials with Tensile strength of 340 MPa | ||
800.0 °C | 210 MPa Show Supplier Material materials with Tensile strength of 210 MPa | ||
900.0 °C | 120 MPa Show Supplier Material materials with Tensile strength of 120 MPa | ||
1000.0 °C | 80 MPa Show Supplier Material materials with Tensile strength of 80 MPa | ||
Yield strength Rp0.2 | 20.0 °C | 285 MPa Show Supplier Material materials with Yield strength Rp0.2 of 285 MPa | |
100.0 °C | 265 MPa Show Supplier Material materials with Yield strength Rp0.2 of 265 MPa | ||
200.0 °C | 240 MPa Show Supplier Material materials with Yield strength Rp0.2 of 240 MPa | ||
300.0 °C | 220 MPa Show Supplier Material materials with Yield strength Rp0.2 of 220 MPa | ||
400.0 °C | 210 MPa Show Supplier Material materials with Yield strength Rp0.2 of 210 MPa | ||
500.0 °C | 200 MPa Show Supplier Material materials with Yield strength Rp0.2 of 200 MPa | ||
600.0 °C | 195 MPa Show Supplier Material materials with Yield strength Rp0.2 of 195 MPa | ||
700.0 °C | 175 MPa Show Supplier Material materials with Yield strength Rp0.2 of 175 MPa | ||
800.0 °C | 135 MPa Show Supplier Material materials with Yield strength Rp0.2 of 135 MPa | ||
900.0 °C | 85 MPa Show Supplier Material materials with Yield strength Rp0.2 of 85 MPa | ||
1000.0 °C | 48 MPa Show Supplier Material materials with Yield strength Rp0.2 of 48 MPa | ||
Yield strength Rp1.0 | 20.0 °C | 310 MPa Show Supplier Material materials with Yield strength Rp1.0 of 310 MPa | |
100.0 °C | 290 MPa Show Supplier Material materials with Yield strength Rp1.0 of 290 MPa | ||
200.0 °C | 265 MPa Show Supplier Material materials with Yield strength Rp1.0 of 265 MPa | ||
300.0 °C | 250 MPa Show Supplier Material materials with Yield strength Rp1.0 of 250 MPa | ||
400.0 °C | 235 MPa Show Supplier Material materials with Yield strength Rp1.0 of 235 MPa | ||
500.0 °C | 225 MPa Show Supplier Material materials with Yield strength Rp1.0 of 225 MPa | ||
600.0 °C | 215 MPa Show Supplier Material materials with Yield strength Rp1.0 of 215 MPa | ||
700.0 °C | 190 MPa Show Supplier Material materials with Yield strength Rp1.0 of 190 MPa | ||
800.0 °C | 145 MPa Show Supplier Material materials with Yield strength Rp1.0 of 145 MPa | ||
900.0 °C | 100 MPa Show Supplier Material materials with Yield strength Rp1.0 of 100 MPa | ||
1000.0 °C | 55 MPa Show Supplier Material materials with Yield strength Rp1.0 of 55 MPa | ||
Thermal
| Property | Temperature | Value |
|---|---|---|
Coefficient of thermal expansion | -100.0 °C | 1.36E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.36E-5 1/K |
100.0 °C | 1.51E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.51E-5 1/K | |
200.0 °C | 1.57E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.57E-5 1/K | |
300.0 °C | 1.62E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.62E-5 1/K | |
400.0 °C | 1.66E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.66E-5 1/K | |
500.0 °C | 1.7E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.7E-5 1/K | |
600.0 °C | 1.74E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.74E-5 1/K | |
700.0 °C | 1.77E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.77E-5 1/K | |
800.0 °C | 1.8E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.8E-5 1/K | |
900.0 °C | 1.83E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.83E-5 1/K | |
1000.0 °C | 1.86E-5 1/K Show Supplier Material materials with Coefficient of thermal expansion of 1.86E-5 1/K | |
Melting point | 1330 - 1400 °C Show Supplier Material materials with Melting point of 1330 - 1400 °C | |
Specific heat capacity | -100.0 °C | 394 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 394 J/(kg·K) |
0.0 °C | 467 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 467 J/(kg·K) | |
20.0 °C | 472 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 472 J/(kg·K) | |
100.0 °C | 501 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 501 J/(kg·K) | |
200.0 °C | 525 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 525 J/(kg·K) | |
300.0 °C | 532 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 532 J/(kg·K) | |
400.0 °C | 555 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 555 J/(kg·K) | |
500.0 °C | 582 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 582 J/(kg·K) | |
600.0 °C | 604 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 604 J/(kg·K) | |
700.0 °C | 610 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 610 J/(kg·K) | |
800.0 °C | 609 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 609 J/(kg·K) | |
900.0 °C | 615 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 615 J/(kg·K) | |
1000.0 °C | 641 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 641 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 11.4 W/(m·K) Show Supplier Material materials with Thermal conductivity of 11.4 W/(m·K) |
100.0 °C | 12.8 W/(m·K) Show Supplier Material materials with Thermal conductivity of 12.8 W/(m·K) | |
200.0 °C | 14.6 W/(m·K) Show Supplier Material materials with Thermal conductivity of 14.6 W/(m·K) | |
300.0 °C | 16.3 W/(m·K) Show Supplier Material materials with Thermal conductivity of 16.3 W/(m·K) | |
400.0 °C | 17.9 W/(m·K) Show Supplier Material materials with Thermal conductivity of 17.9 W/(m·K) | |
500.0 °C | 19.5 W/(m·K) Show Supplier Material materials with Thermal conductivity of 19.5 W/(m·K) | |
600.0 °C | 21 W/(m·K) Show Supplier Material materials with Thermal conductivity of 21 W/(m·K) | |
700.0 °C | 22.6 W/(m·K) Show Supplier Material materials with Thermal conductivity of 22.6 W/(m·K) | |
800.0 °C | 24.1 W/(m·K) Show Supplier Material materials with Thermal conductivity of 24.1 W/(m·K) | |
900.0 °C | 25.6 W/(m·K) Show Supplier Material materials with Thermal conductivity of 25.6 W/(m·K) | |
1000.0 °C | 27 W/(m·K) Show Supplier Material materials with Thermal conductivity of 27 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.04E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.04E-6 Ω·m |
100.0 °C | 1.07E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.07E-6 Ω·m | |
200.0 °C | 1.11E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.11E-6 Ω·m | |
300.0 °C | 1.14E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.14E-6 Ω·m | |
400.0 °C | 1.17E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.17E-6 Ω·m | |
500.0 °C | 1.19E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.19E-6 Ω·m | |
600.0 °C | 1.22E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.22E-6 Ω·m | |
700.0 °C | 1.23E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.23E-6 Ω·m | |
800.0 °C | 1.25E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.25E-6 Ω·m | |
900.0 °C | 1.27E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.27E-6 Ω·m | |
1000.0 °C | 1.29E-6 Ω·m Show Supplier Material materials with Electrical resistivity of 1.29E-6 Ω·m | |
Magnetic
| Property | Temperature | Value |
|---|---|---|
Relative magnetic permeability | 23.0 °C | 1.01 [-] Show Supplier Material materials with Relative magnetic permeability of 1.01 [-] |
Chemical properties
| Property | Value | Comment | |
|---|---|---|---|
Carbon | 0.15 % Show Supplier Material materials with Carbon of 0.15 % | max. | |
Chromium | 15 - 17 % Show Supplier Material materials with Chromium of 15 - 17 % | ||
Iron | Balance | ||
Manganese | 2 % Show Supplier Material materials with Manganese of 2 % | max. | |
Nickel | 34 - 37 % Show Supplier Material materials with Nickel of 34 - 37 % | ||
Phosphorus | 0.04 % Show Supplier Material materials with Phosphorus of 0.04 % | max. | |
Silicon | 1 - 2 % Show Supplier Material materials with Silicon of 1 - 2 % | ||
Sulfur | 0.02 % Show Supplier Material materials with Sulfur of 0.02 % | max. | |
Titanium | 0.2 % Show Supplier Material materials with Titanium of 0.2 % | max. | |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Nicrofer 3718 finds wide application in high-temperature processes: fans operating at high temperatures in carburising furnaces resisting carburisation, boxes and baskets used in carburising resisting carburisation and showing weight savings when compared with cast boxes, hangers, hooks and conveyor chains used to carry vitreous-enamelled components during firing resisting oxide spalling so that oxide does not fall on the enamel, combustion tubes resisting oxidation to carburisation and alternating oxidising and carburising conditions, jigs and fixtures used in furnace brazing and wire mesh belts to carry components in heat-treatment processes, thermocouple sheaths resisting carburisation and nitriding, flare-stack tips resisting alternating conditions, components handling cracked ammonia. | |
| Cold Forming | Cold working should be carried out on annealed material. Nicrofer 3718 has a similar work-hardening rate compared to austenitic stainless steel and the forming equipment must be adapted accordingly. When cold working is performed, interstage annealing may become necessary. After cold reduction of more than 15%, final annealing is required before use, in so far as the creep-strength is important. Bending property and formability is given even with oxidised sheets. Nevertheless the bending radius should be 3 times sheet thickness. | |
| Corrosion properties | The nickel-chromium-iron alloy Nicrofer 3718 containing about 2% silicon is a general-purpose heat-resisting material. It has good oxidation resistance up to about 1000°C, particularly under cyclic conditions of heating and cooling. It also has excellent resistance to carburisation and is widely used in industry under such conditions. Its resistance to nitrogen-containing atmospheres where oxygen content is low makes them suitable for environments such as cracked ammonia. | |
| General machinability | Nicrofer 3718 should be machined in the annealed condition. As the alloy is susceptible to work-hardening, a low cutting speed should be used and tools should be engaged at all times. Heavy feeds are important in betting below the work-hardened 'skin'. | |
| Heat Treatment | Annealing should be carried out in the temperature range 1020 to 1120°C (1870 to 2050°F). Water quenching is essential for maximum creep resistance. During any heating operation, the precautions outlined earlier regarding cleanliness must be observed. | |
| Hot forming | Nicrofer 3718 may be hot-worked in the range 1150 to 950 °C (2100 to 1740 °F). Cooling should be by water quenching or as fast as possible. Annealing is recommended after hot working to ensure maximum corrosion resistance and optimum structure. The material may be charged into the furnace at maximum working temperature. | |
| Other | Nicrofer 3718 is a solid solution alloy with small amounts of precipitated titanium nitride and carbide as well as carbonitrides in the austenitic matrix. | |
| Welding | Nicrofer 3718 can be welded by GTAW, plasma arc and SMAW processes. Prior to welding, material should be in the annealed condition, clean and free from scale, grease, marking paints etc. A zone approximately 25 mm (1 in) wide on each side of the joint should be ground to bright metal. Interpass temperature should not exceed 150°C (300°F). Neither pre- nor post-weld heat treatment is required. | |