DIN 17730 Grade G-Ni90Si cast condition

Want to keep this datasheet? Save it now in your required format


G-Ni90Si is brittler than the material G-Ni95 (2.4170) and possesses increased resistance to wear. The tendency to galling at insufficiently lubricated bearing spots is low. The material possesses good corrosion-resistance to non-oxidizing mediums. It shows very good resistance to hot and concentrated caustic alkalies as well as to dry gases, e.g. chlorine. The material is applied in the chemical industry and in the food industry, for valves and fittings, in the apparatus engineering, for pumps, shut-off devices and the like. Processing properties: Weldability: not weldable.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.





20.0 °C

8 g/cm³

Show Material materials with Density of 8 g/cm³



Elastic modulus

23.0 °C

190 - 220 GPa

Show Material materials with Elastic modulus of 190 - 220 GPa

Typical for Pure/Low Nickel Alloy


20.0 °C

3 %

Show Material materials with Elongation of 3 %

Hardness, Brinell

20.0 °C

180 [-]

Show Material materials with Hardness, Brinell of 180 [-]

Tensile strength

20.0 °C

500 MPa

Show Material materials with Tensile strength of 500 MPa

Yield strength Rp0.2

20.0 °C

350 MPa

Show Material materials with Yield strength Rp0.2 of 350 MPa



Coefficient of thermal expansion

23.0 °C

8.5E-6 - 1.4E-5 1/K

Show Material materials with Coefficient of thermal expansion of 8.5E-6 - 1.4E-5 1/K

Typical for Pure/Low Nickel Alloy

Melting point

1400 - 1500 °C

Show Material materials with Melting point of 1400 - 1500 °C

Typical for Pure/Low Nickel Alloy

Specific heat capacity

23.0 °C

430 - 532 J/(kg·K)

Show Material materials with Specific heat capacity of 430 - 532 J/(kg·K)

Typical for Pure/Low Nickel Alloy

Thermal conductivity

23.0 °C

18 - 86 W/(m·K)

Show Material materials with Thermal conductivity of 18 - 86 W/(m·K)

Typical for Pure/Low Nickel Alloy

Chemical properties



1 %

Show Material materials with Carbon of 1 %


1.2 %

Show Material materials with Copper of 1.2 %


1 %

Show Material materials with Iron of 1 %


1.5 %

Show Material materials with Manganese of 1.5 %


90 %

Show Material materials with Nickel of 90 %


5.5 - 6.5 %

Show Material materials with Silicon of 5.5 - 6.5 %

Technological properties

Processing methods

sand casting, separately cast test sample