EN 10028-7 Grade X6CrNiNb18-10 solution annealed (+AT)

EN 10028-7 Grade X6CrNiNb18-10 solution annealed (+AT) introduction

The austenitic steel X6CrNiNb18-10 is comparable to 1.4541 regarding the corrosion behaviour. The steel is resistant to intercrystalline corrosion even in sensitized condition. It shows a tendency to hot shortness for certain welding conditions.
Permitted for pressure vessel construction up to 300 °C, up to 550 °C subject to certificate. Unsuited for mirror-polishing due to the Nb-content.
Application: in high amount in chemical apparatus engineering, in foodstuff industry, in film and foto industry as well as for household objects

Equivalent material: GB 06Cr18Ni11Nb, GB S34778, IS X04Cr18Ni10Nb, JIS SUS347, GOST 08Ch18N12B, KS STS347, ASTM A240Type347, AISI 347, ASME SA-240Type347, SAE 347, UNS S34700, BDS 0Ch18N12B, GB 0Cr18Ni11Nb, AFNOR Z6CNNb18-10, BS 347S17, ISO 16, UNI X6CrNiNb18-11, ÖNORM X6CrNiNb18-10S, PN OH18N12Nb, SS 2338, UNE F.3524-X6CrNiNb18-10, ASTM 347, DIN X6CrNiNb18-10, ISO X6CrNiTi18-10, ISO 4550-347-00-I, DIN 1.4550, DIN X10CrNiNb, UNI X6CrNiNb1811, UNE F.3552, UNE F.3524, AISI 347H, SAE 347H, JIS SUS347TP, JIS SUS347TPY, JIS SUS347TF, JIS SUS347TKA, JIS SUS347FB, JIS SUS347TB, EN 1.4550, ASTM S34709, ASTM Grade F347H, UNS S34709

EN 10028-7 Grade X6CrNiNb18-10 solution annealed (+AT) general

Property Temperature Value
Density 20.0 °C Density of 7.9 - 7.93 g/cm³

EN 10028-7 Grade X6CrNiNb18-10 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 1.6E-5 - 1.67E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 1.65E-5 - 1.72E-5 1/K -
- 300.0 °C Coefficient of thermal expansion of 1.7E-5 - 1.77E-5 1/K -
- 400.0 °C Coefficient of thermal expansion of 1.75E-5 - 1.81E-5 1/K -
- 425.0 °C Coefficient of thermal expansion of 1.76E-5 1/K -
- 485.0 °C Coefficient of thermal expansion of 1.78E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.8E-5 - 1.84E-5 1/K -
- 540.0 °C Coefficient of thermal expansion of 1.8E-5 1/K -
- 595.0 °C Coefficient of thermal expansion of 1.83E-5 1/K -
- 600.0 °C Coefficient of thermal expansion of 1.88E-5 1/K -
- 650.0 °C Coefficient of thermal expansion of 1.85E-5 1/K -
- 700.0 °C Coefficient of thermal expansion of 1.91E-5 1/K -
- 705.0 °C Coefficient of thermal expansion of 1.87E-5 1/K -
- 800.0 °C Coefficient of thermal expansion of 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 2E-5 1/K -
Max service temperature, long - Max service temperature, long of 0 - 550 °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 14.3 - 15 W/(m·K) -
- 100.0 °C Thermal conductivity of 15.8 W/(m·K) -
- 200.0 °C Thermal conductivity of 17.5 W/(m·K) -
- 300.0 °C Thermal conductivity of 19 W/(m·K) -
- 400.0 °C Thermal conductivity of 20.5 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 24.6 W/(m·K) -
- 800.0 °C Thermal conductivity of 26 W/(m·K) -
- 900.0 °C Thermal conductivity of 27.4 W/(m·K) -
- 1000.0 °C Thermal conductivity of 28.8 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 3.8 mm²/s -
- 100.0 °C Thermal diffusivity of 4 mm²/s -
- 200.0 °C Thermal diffusivity of 4.2 mm²/s -
- 300.0 °C Thermal diffusivity of 4.6 mm²/s -
- 400.0 °C Thermal diffusivity of 4.8 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 5.6 mm²/s -
- 900.0 °C Thermal diffusivity of 5.9 mm²/s -
- 1000.0 °C Thermal diffusivity of 6 mm²/s -

EN 10028-7 Grade X6CrNiNb18-10 solution annealed (+AT) chemical

Property Value
Carbon Carbon of 0.08 %
Chromium Chromium of 17 - 19 %
Manganese Manganese of 2 %
Nickel Nickel of 9 - 12 %
Niobium Niobium of 1 %
Phosphorus Phosphorus of 0.05 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.015 %

EN 10028-7 Grade X6CrNiNb18-10 solution annealed (+AT) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 7.1E-7 - 7.3E-7 Ω·m
- 100.0 °C Electrical resistivity of 7.76E-7 Ω·m
- 200.0 °C Electrical resistivity of 8.49E-7 Ω·m
- 300.0 °C Electrical resistivity of 9.14E-7 Ω·m
- 400.0 °C Electrical resistivity of 9.71E-7 Ω·m
- 500.0 °C Electrical resistivity of 1.02E-6 Ω·m
- 600.0 °C Electrical resistivity of 1.07E-6 Ω·m
- 700.0 °C Electrical resistivity of 1.1E-6 Ω·m
- 800.0 °C Electrical resistivity of 1.14E-6 Ω·m
- 900.0 °C Electrical resistivity of 1.17E-6 Ω·m
- 1000.0 °C Electrical resistivity of 1.19E-6 Ω·m

EN 10028-7 Grade X6CrNiNb18-10 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
- 95.0 °C Elastic modulus of 194.43 GPa
- 100.0 °C Elastic modulus of 190 - 194 GPa
- 150.0 °C Elastic modulus of 189.61 GPa
- 200.0 °C Elastic modulus of 182 - 186 GPa
- 205.0 °C Elastic modulus of 184.78 GPa
- 260.0 °C Elastic modulus of 179.95 GPa
- 300.0 °C Elastic modulus of 174 - 179 GPa
- 315.0 °C Elastic modulus of 175.13 GPa
- 370.0 °C Elastic modulus of 170.99 GPa
- 400.0 °C Elastic modulus of 166 - 172 GPa
- 425.0 °C Elastic modulus of 166.16 GPa
- 485.0 °C Elastic modulus of 161.34 GPa
- 500.0 °C Elastic modulus of 158 - 165 GPa
- 540.0 °C Elastic modulus of 157.2 GPa
- 595.0 °C Elastic modulus of 151.69 GPa
- 600.0 °C Elastic modulus of 150 GPa
- 650.0 °C Elastic modulus of 147.54 GPa
- 700.0 °C Elastic modulus of 142 GPa
- 705.0 °C Elastic modulus of 142.72 GPa
- 760.0 °C Elastic modulus of 137.9 GPa
- 800.0 °C Elastic modulus of 134 GPa
- 815.0 °C Elastic modulus of 133.76 GPa
- 870.0 °C Elastic modulus of 128.93 GPa
- 900.0 °C Elastic modulus of 127 GPa
- 1000.0 °C Elastic modulus of 120 GPa
Elongation A80, transverse 20.0 °C Elongation A80, transverse of 40 %
Elongation, transverse 20.0 °C Elongation, transverse of 40 %
Poisson's ratio 20.0 °C Poisson's ratio of 0.27 [-]
- 95.0 °C Poisson's ratio of 0.28 [-]
- 150.0 °C Poisson's ratio of 0.29 [-]
- 205.0 °C Poisson's ratio of 0.29 [-]
- 260.0 °C Poisson's ratio of 0.29 [-]
- 315.0 °C Poisson's ratio of 0.3 [-]
- 370.0 °C Poisson's ratio of 0.31 [-]
- 425.0 °C Poisson's ratio of 0.31 [-]
- 485.0 °C Poisson's ratio of 0.32 [-]
- 540.0 °C Poisson's ratio of 0.33 [-]
- 595.0 °C Poisson's ratio of 0.33 [-]
- 650.0 °C Poisson's ratio of 0.32 [-]
- 705.0 °C Poisson's ratio of 0.33 [-]
- 760.0 °C Poisson's ratio of 0.35 [-]
- 815.0 °C Poisson's ratio of 0.35 [-]
- 870.0 °C Poisson's ratio of 0.36 [-]
Shear modulus 20.0 °C Shear modulus of 78.6 GPa
- 95.0 °C Shear modulus of 75.84 GPa
- 150.0 °C Shear modulus of 73.77 GPa
- 205.0 °C Shear modulus of 71.71 GPa
- 260.0 °C Shear modulus of 69.64 GPa
- 315.0 °C Shear modulus of 67.57 GPa
- 370.0 °C Shear modulus of 65.5 GPa
- 425.0 °C Shear modulus of 63.43 GPa
- 485.0 °C Shear modulus of 61.36 GPa
- 540.0 °C Shear modulus of 59.3 GPa
- 595.0 °C Shear modulus of 57.23 GPa
- 650.0 °C Shear modulus of 55.85 GPa
- 705.0 °C Shear modulus of 53.78 GPa
- 760.0 °C Shear modulus of 51.11 GPa
- 815.0 °C Shear modulus of 49.64 GPa
- 870.0 °C Shear modulus of 47.57 GPa
Tensile strength 20.0 °C Tensile strength of 500 - 720 MPa
- 50.0 °C Tensile strength of 476 MPa
- 100.0 °C Tensile strength of 435 MPa
- 150.0 °C Tensile strength of 400 MPa
- 200.0 °C Tensile strength of 370 MPa
- 250.0 °C Tensile strength of 350 MPa
- 300.0 °C Tensile strength of 340 MPa
- 350.0 °C Tensile strength of 335 MPa
- 400.0 °C Tensile strength of 330 MPa
- 450.0 °C Tensile strength of 320 MPa
- 500.0 °C Tensile strength of 310 MPa
- 550.0 °C Tensile strength of 300 MPa
Tensile strength, transverse 20.0 °C Tensile strength, transverse of 500 - 720 MPa
Yield strength Rp0.2 50.0 °C Yield strength Rp0.2 of 191 MPa
- 100.0 °C Yield strength Rp0.2 of 177 MPa
- 150.0 °C Yield strength Rp0.2 of 167 MPa
- 200.0 °C Yield strength Rp0.2 of 157 MPa
- 250.0 °C Yield strength Rp0.2 of 147 MPa
- 300.0 °C Yield strength Rp0.2 of 136 MPa
- 350.0 °C Yield strength Rp0.2 of 130 MPa
- 400.0 °C Yield strength Rp0.2 of 125 MPa
- 450.0 °C Yield strength Rp0.2 of 121 MPa
- 500.0 °C Yield strength Rp0.2 of 119 MPa
- 550.0 °C Yield strength Rp0.2 of 118 MPa
Yield strength Rp0.2, transverse 20.0 °C Yield strength Rp0.2, transverse of 200 MPa
Yield strength Rp1.0 50.0 °C Yield strength Rp1.0 of 229 MPa
- 100.0 °C Yield strength Rp1.0 of 211 MPa
- 150.0 °C Yield strength Rp1.0 of 196 MPa
- 200.0 °C Yield strength Rp1.0 of 186 MPa
- 250.0 °C Yield strength Rp1.0 of 177 MPa
- 300.0 °C Yield strength Rp1.0 of 167 MPa
- 350.0 °C Yield strength Rp1.0 of 161 MPa
- 400.0 °C Yield strength Rp1.0 of 156 MPa
- 450.0 °C Yield strength Rp1.0 of 152 MPa
- 500.0 °C Yield strength Rp1.0 of 149 MPa
- 550.0 °C Yield strength Rp1.0 of 147 MPa
Yield strength Rp1.0, transverse 20.0 °C Yield strength Rp1.0, transverse of 240 MPa

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