SEW 470 Grade X15CrNiSi25-21 solution annealed (+AT)
SEW 470 Grade X15CrNiSi25-21 solution annealed (+AT) introduction
X15CrNiSi25-20 shows scaling resistance up to max. 1150°C (highest application temp. in air). The steel is slightly resistant in reducing, sulfureous and carburizing athmosphere. Sigma phase embrittlement at temperatures of 600 to 900°C. Application for parts of heat-treatment furnaces, pyrolysis appliances and glass pressing forms.
Equivalent material: GB 16Cr25Ni20Si2, GB S38340, IS X20Cr25Ni20, JIS SUH310, KS STR310, GOST 20Ch25N20S2, GOST 20Х25Н20С2, UNS S31400, DIN 1.4841, DIN X15CrNiSi25-20, DIN X15CrNiSi25-21, AISI 314, SAE 314, JIS SUS310TP, JIS SUS310TB, JIS SUS310TF, EN 1.4841, GB 1Cr25Ni20Si2, ASTM 314, IS X20Cr2Ni20
SEW 470 Grade X15CrNiSi25-21 solution annealed (+AT) general
| Property | Temperature | Value |
|---|---|---|
| Density | 20.0 °C | Density of 7.76 - 7.9 g/cm³ |
SEW 470 Grade X15CrNiSi25-21 solution annealed (+AT) thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Coefficient of thermal expansion | -100.0 °C | Coefficient of thermal expansion of 1.49E-5 1/K | - |
| - | 20.0 °C | Coefficient of thermal expansion of 1.61E-5 1/K | - |
| - | 100.0 °C | Coefficient of thermal expansion of 1.67E-5 1/K | - |
| - | 200.0 °C | Coefficient of thermal expansion of 1.55E-5 - 1.72E-5 1/K | - |
| - | 300.0 °C | Coefficient of thermal expansion of 1.77E-5 1/K | - |
| - | 400.0 °C | Coefficient of thermal expansion of 1.7E-5 - 1.81E-5 1/K | - |
| - | 500.0 °C | Coefficient of thermal expansion of 1.84E-5 1/K | - |
| - | 600.0 °C | Coefficient of thermal expansion of 1.75E-5 - 1.88E-5 1/K | - |
| - | 700.0 °C | Coefficient of thermal expansion of 1.91E-5 1/K | - |
| - | 800.0 °C | Coefficient of thermal expansion of 1.8E-5 - 1.94E-5 1/K | - |
| - | 900.0 °C | Coefficient of thermal expansion of 1.97E-5 1/K | - |
| - | 1000.0 °C | Coefficient of thermal expansion of 1.9E-5 - 2E-5 1/K | - |
| Max service temperature, long | - | Max service temperature, long of 0 - 1150 °C | - |
| Melting point | - | Melting point of 1230 - 1480 °C | Typical for Austenitic Stainless Steel |
| Specific heat capacity | -100.0 °C | Specific heat capacity of 440 J/(kg·K) | - |
| - | 20.0 °C | Specific heat capacity of 472 - 500 J/(kg·K) | - |
| - | 100.0 °C | Specific heat capacity of 487 J/(kg·K) | - |
| - | 200.0 °C | Specific heat capacity of 503 J/(kg·K) | - |
| - | 300.0 °C | Specific heat capacity of 512 J/(kg·K) | - |
| - | 400.0 °C | Specific heat capacity of 520 J/(kg·K) | - |
| - | 500.0 °C | Specific heat capacity of 530 J/(kg·K) | - |
| - | 600.0 °C | Specific heat capacity of 541 J/(kg·K) | - |
| - | 700.0 °C | Specific heat capacity of 551 J/(kg·K) | - |
| - | 800.0 °C | Specific heat capacity of 559 J/(kg·K) | - |
| - | 900.0 °C | Specific heat capacity of 565 J/(kg·K) | - |
| - | 1000.0 °C | Specific heat capacity of 571 J/(kg·K) | - |
| Thermal conductivity | 20.0 °C | Thermal conductivity of 11.9 - 15 W/(m·K) | - |
| - | 100.0 °C | Thermal conductivity of 13.3 W/(m·K) | - |
| - | 200.0 °C | Thermal conductivity of 15.1 W/(m·K) | - |
| - | 300.0 °C | Thermal conductivity of 16.7 W/(m·K) | - |
| - | 400.0 °C | Thermal conductivity of 18.3 W/(m·K) | - |
| - | 500.0 °C | Thermal conductivity of 19 - 19.8 W/(m·K) | - |
| - | 600.0 °C | Thermal conductivity of 21.3 W/(m·K) | - |
| - | 700.0 °C | Thermal conductivity of 22.8 W/(m·K) | - |
| - | 800.0 °C | Thermal conductivity of 24.3 W/(m·K) | - |
| - | 900.0 °C | Thermal conductivity of 25.7 W/(m·K) | - |
| - | 1000.0 °C | Thermal conductivity of 27.1 W/(m·K) | - |
| Thermal diffusivity | 20.0 °C | Thermal diffusivity of 3.3 mm²/s | - |
| - | 100.0 °C | Thermal diffusivity of 3.4 mm²/s | - |
| - | 200.0 °C | Thermal diffusivity of 3.7 mm²/s | - |
| - | 300.0 °C | Thermal diffusivity of 4.1 mm²/s | - |
| - | 400.0 °C | Thermal diffusivity of 4.3 mm²/s | - |
| - | 500.0 °C | Thermal diffusivity of 4.5 mm²/s | - |
| - | 600.0 °C | Thermal diffusivity of 4.7 mm²/s | - |
| - | 700.0 °C | Thermal diffusivity of 5 mm²/s | - |
| - | 800.0 °C | Thermal diffusivity of 5.4 mm²/s | - |
| - | 900.0 °C | Thermal diffusivity of 5.7 mm²/s | - |
| - | 1000.0 °C | Thermal diffusivity of 5.8 mm²/s | - |
SEW 470 Grade X15CrNiSi25-21 solution annealed (+AT) chemical
| Property | Value |
|---|---|
| Carbon | Carbon of 0.2 % |
| Chromium | Chromium of 24 - 26 % |
| Manganese | Manganese of 2 % |
| Nickel | Nickel of 19 - 22 % |
| Nitrogen | Nitrogen of 0.11 % |
| Phosphorus | Phosphorus of 0.05 % |
| Silicon | Silicon of 1.5 - 2.5 % |
| Sulfur | Sulfur of 0.015 % |
SEW 470 Grade X15CrNiSi25-21 solution annealed (+AT) electrical
| Property | Temperature | Value |
|---|---|---|
| Electrical resistivity | 20.0 °C | Electrical resistivity of 9E-7 - 9.59E-7 Ω·m |
| - | 100.0 °C | Electrical resistivity of 1.01E-6 Ω·m |
| - | 200.0 °C | Electrical resistivity of 1.05E-6 Ω·m |
| - | 300.0 °C | Electrical resistivity of 1.1E-6 Ω·m |
| - | 400.0 °C | Electrical resistivity of 1.13E-6 Ω·m |
| - | 500.0 °C | Electrical resistivity of 1.17E-6 Ω·m |
| - | 600.0 °C | Electrical resistivity of 1.19E-6 Ω·m |
| - | 700.0 °C | Electrical resistivity of 1.22E-6 Ω·m |
| - | 800.0 °C | Electrical resistivity of 1.24E-6 Ω·m |
| - | 900.0 °C | Electrical resistivity of 1.26E-6 Ω·m |
| - | 1000.0 °C | Electrical resistivity of 1.28E-6 Ω·m |
SEW 470 Grade X15CrNiSi25-21 solution annealed (+AT) mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Elastic modulus | -269.0 °C | Elastic modulus of 205.5 GPa | - |
| - | -195.0 °C | Elastic modulus of 205.5 GPa | - |
| - | -100.0 °C | Elastic modulus of 206 GPa | - |
| - | 20.0 °C | Elastic modulus of 196 GPa | - |
| - | 27.0 °C | Elastic modulus of 143.7 GPa | - |
| - | 100.0 °C | Elastic modulus of 190 GPa | - |
| - | 200.0 °C | Elastic modulus of 182 GPa | - |
| - | 300.0 °C | Elastic modulus of 174 GPa | - |
| - | 400.0 °C | Elastic modulus of 166 GPa | - |
| - | 500.0 °C | Elastic modulus of 158 GPa | - |
| - | 600.0 °C | Elastic modulus of 150 GPa | - |
| - | 700.0 °C | Elastic modulus of 142 GPa | - |
| - | 800.0 °C | Elastic modulus of 134 GPa | - |
| - | 900.0 °C | Elastic modulus of 127 GPa | - |
| - | 1000.0 °C | Elastic modulus of 120 GPa | - |
| Elongation | 20.0 °C | Elongation of 30 % | - |
| Elongation A80 | 20.0 °C | Elongation A80 of 28 % | - |
| Hardness, Brinell | 20.0 °C | Hardness, Brinell of 223 [-] | - |
| Poisson's ratio | -269.0 °C | Poisson's ratio of 0.3 [-] | - |
| - | -195.0 °C | Poisson's ratio of 0.3 [-] | - |
| - | 20.0 °C | Poisson's ratio of 0.3 [-] | - |
| - | 27.0 °C | Poisson's ratio of 0.29 [-] | - |
| Shear modulus | 23.0 °C | Shear modulus of 77 GPa | Typical for Austenitic Stainless Steel |
| Tensile strength | 20.0 °C | Tensile strength of 550 - 750 MPa | - |
| Yield strength Rp0.2 | 20.0 °C | Yield strength Rp0.2 of 230 MPa | - |
| Yield strength Rp1.0 | 20.0 °C | Yield strength Rp1.0 of 270 MPa | - |
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