DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C)
  • Home
  • Material
  • DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C)

DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C)

DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C) introduction

The austenitic free-cutting steel X8CrNiS18-9, mat. no. 1.4305, is used for wire acc. DIN 17440 : 1996-09. The material is both in the delivery condition and in the welded condition not resistant to intercrystalline corrosion. According DIN 17440 : 1985-07 (X 10 CrNiS 18 9) resp. DIN EN 10088-1,-2,-3 : 1995-08 (X8CrNiS18-9) is used for stainless turned parts in the food and milk industry, photochemistry, colour industry, oil industry, cosmetic industry, paper industry, textile industry. Because of the S-content the machinability is better than of common CrNi-steels, but the corrosion resistance is lower.

Equivalent material: AS 303, ISO 17, JIS SUS303, NS 14330, SS 2346, UNE F.3508-X10CrNiS18-09, ASTM 303, DIN 1.4305, DIN X 10 CrNiS 18 9, DIN X10CrNiS18-9, AFNOR Z8CNF18-09, BS 303S31, BS 303S22, BS EN58M, UNE F.3508, AISI 303, SAE 303, EN X8CrNiS18-9, EN 1.4305, ISO A1, GOST 12X18H10E, GB Y1Cr18Ni9, ASTM Type 303, UNS S30300

DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C) general

Property Temperature Value
Density 20.0 °C Density of 7.9 - 7.92 g/cm³

DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C) 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 1.7E-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 1.8E-5 - 1.81E-5 1/K -
- 500.0 °C Coefficient of thermal expansion of 1.8E-5 - 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 -
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) -
Thermal conductivity -100.0 °C Thermal conductivity of 11.7 W/(m·K) -
- 20.0 °C Thermal conductivity of 14.5 - 15 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 -

DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C) chemical

Property Value
Carbon Carbon of 0.1 %
Chromium Chromium of 17 - 19 %
Copper Copper of 1 %
Manganese Manganese of 2 %
Nickel Nickel of 8 - 10 %
Nitrogen Nitrogen of 0.11 %
Phosphorus Phosphorus of 0.05 %
Silicon Silicon of 1 %
Sulfur Sulfur of 0.15 - 0.35 %

DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C) 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 - 7.3E-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

DIN 17440 Grade X8CrNiS18-9 cold work hardened (+C) mechanical

Property Temperature Value Comment
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 - 194 GPa -
- 200.0 °C Elastic modulus of 182 - 186 GPa -
- 300.0 °C Elastic modulus of 174 - 179 GPa -
- 400.0 °C Elastic modulus of 166 - 172 GPa -
- 500.0 °C Elastic modulus of 158 - 165 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 12 - 20 % -
Poisson's ratio 20.0 °C Poisson's ratio of 0.28 [-] -
Shear modulus 23.0 °C Shear modulus of 77 GPa Typical for Austenitic Stainless Steel
Tensile strength 20.0 °C Tensile strength of 700 - 1000 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 350 - 500 MPa -

Stay ahead of the curve with our advanced steel technologies that push boundaries and unlock new possibilities.

-- Our promise

Similar or equivalent steel materials

Get a quote

Post Categories