EN 10088-1 Grade X7CrNiAl17-7 solution annealed (+AT)
EN 10088-1 Grade X7CrNiAl17-7 solution annealed (+AT) introduction
Material X7CrNiAl17-7 is comparable to X 7 CrNiAl 17 7 acc. to DIN17224 : 1982-02. The material is a hardenable stainless steel with high strength and hardness, sufficient corrosion resistance and satisfactory workability. It shows the lowest corrosion resistance within the group of type 1.4301 owing to the lowered Cr- and Ni-content and the Al-addition. Application in aircraft industry and in leight weight construction for surface facings, fuel reservoirs, valve components, pressure vessels, presswork components in wear loaded assemblies.
Equivalent material: AISI S17700, GB 0Cr17Ni7Al, AFNOR Z8CNA17-07, BS 301S81, GOST 09Ch17N7Ju1, GB S51778, ISO X7CrNiAl17-7, JIS SUS631, JIS SUS631-CSP, KS STS631, SS 2388, UNS S17700, AMS S17700, ASME 631, ASTM 631, ASTM 62, SAE S17700, SAE 17-7PH, DIN X7CrNiAl17-7, GB 07Cr17Ni7Al, GB S51770, ISO PP24L, ISO 4568-327-07-U, GOST 09Ch17N7Ju, GOST 09Х17Н7Ю, ASTM A480Type631, ASTM A564Type631, ASTM A693Type631, ASTM A959UNSS17700, AISI 631, AISI Type631, DIN 1.4568, DIN X 7 CrNiAl 17 7, AFNOR Z9CNA17-07, AISI 631 (17-7PH), SAE 631, SAE 631 (17-7PH), JIS SUS631J1, EN 1.4568
EN 10088-1 Grade X7CrNiAl17-7 solution annealed (+AT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 - 7.92 g/cm³ |
EN 10088-1 Grade X7CrNiAl17-7 solution annealed (+AT) thermal
| Property |
Temperature |
Value |
| 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 1.3E-5 - 1.67E-5 1/K |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.35E-5 - 1.72E-5 1/K |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.4E-5 - 1.77E-5 1/K |
| - |
400.0 °C |
Coefficient of thermal expansion of 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 1.88E-5 1/K |
| - |
700.0 °C |
Coefficient of thermal expansion of 1.91E-5 1/K |
| - |
800.0 °C |
Coefficient of thermal expansion of 1.94E-5 1/K |
| 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) |
| Thermal conductivity |
-100.0 °C |
Thermal conductivity of 11.7 W/(m·K) |
| - |
20.0 °C |
Thermal conductivity of 14.5 - 16 W/(m·K) |
| - |
100.0 °C |
Thermal conductivity of 16 W/(m·K) |
| - |
200.0 °C |
Thermal conductivity of 17.6 W/(m·K) |
| - |
300.0 °C |
Thermal conductivity of 19.1 W/(m·K) |
| - |
400.0 °C |
Thermal conductivity of 20.4 W/(m·K) |
| - |
500.0 °C |
Thermal conductivity of 21.9 W/(m·K) |
| - |
600.0 °C |
Thermal conductivity of 23.3 W/(m·K) |
| - |
700.0 °C |
Thermal conductivity of 24.7 W/(m·K) |
| - |
800.0 °C |
Thermal conductivity of 26.1 W/(m·K) |
| Thermal diffusivity |
-100.0 °C |
Thermal diffusivity of 3.7 mm²/s |
| - |
20.0 °C |
Thermal diffusivity of 3.9 mm²/s |
| - |
100.0 °C |
Thermal diffusivity of 4.3 mm²/s |
| - |
200.0 °C |
Thermal diffusivity of 4.3 mm²/s |
| - |
300.0 °C |
Thermal diffusivity of 4.6 mm²/s |
| - |
400.0 °C |
Thermal diffusivity of 4.7 mm²/s |
| - |
500.0 °C |
Thermal diffusivity of 4.9 mm²/s |
| - |
600.0 °C |
Thermal diffusivity of 5 mm²/s |
| - |
700.0 °C |
Thermal diffusivity of 5.3 mm²/s |
| - |
800.0 °C |
Thermal diffusivity of 5.7 mm²/s |
EN 10088-1 Grade X7CrNiAl17-7 solution annealed (+AT) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.7 - 1.5 % |
| Carbon |
Carbon of 0.09 % |
| Chromium |
Chromium of 16 - 18 % |
| Manganese |
Manganese of 1 % |
| Nickel |
Nickel of 6.5 - 7.8 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.7 % |
| Sulfur |
Sulfur of 0.015 % |
EN 10088-1 Grade X7CrNiAl17-7 solution annealed (+AT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
-100.0 °C |
Electrical resistivity of 5.86E-7 Ω·m |
| - |
20.0 °C |
Electrical resistivity of 6.92E-7 - 8E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 7.58E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 8.36E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 9.07E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 9.73E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 1.02E-6 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 1.06E-6 Ω·m |
| - |
700.0 °C |
Electrical resistivity of 1.1E-6 Ω·m |
| - |
800.0 °C |
Electrical resistivity of 1.13E-6 Ω·m |
EN 10088-1 Grade X7CrNiAl17-7 solution annealed (+AT) mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 206 GPa |
| - |
20.0 °C |
Elastic modulus of 196 - 200 GPa |
| - |
100.0 °C |
Elastic modulus of 190 - 195 GPa |
| - |
200.0 °C |
Elastic modulus of 182 - 185 GPa |
| - |
300.0 °C |
Elastic modulus of 174 - 175 GPa |
| - |
400.0 °C |
Elastic modulus of 166 - 170 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 |
| Elongation |
20.0 °C |
Elongation of 10 - 19 % |
| Elongation A80 |
20.0 °C |
Elongation A80 of 19 % |
| Elongation A80, transverse |
20.0 °C |
Elongation A80, transverse of 19 % |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 255 [-] |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| Tensile strength |
20.0 °C |
Tensile strength of 100 - 1100 MPa |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 1030 MPa |
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