G.AL® C250 ELOX PLUS, precision milled plate



Rolling ingots are used for the production of G.AL® C250 ELOXPLUS plates. The chemical composition of these ingots is considerably limited in accordance with the GLEICH factory standard and extensive cleaning of the melt and specific casting parameters are required. Together with the specially-developed parameters of the subsequent heat treatment, Gleich produces aluminum plates which have excellent characteristics for anodizing and hard anodizing and thus the fulfill the highest technical and optical applications. As with G.AL® C250, G.AL® C250 ELOX PLUS is a precision cast plate, precision machined on both sides with protective foil.

Related Standards



Density ρ

2.66 g/cm³ at 20 °C

Surface roughness RMS

0.4 μm



Standard stock sizes: 1520mmx3020mm and 10-40mm in thickness

Width w

1520 mm


Elastic modulus E

70 GPa at 20 °C

Elongation A

10 - 15 % at 20 °C

Hardness, HBW HBW

68 - 73 [-] at 20 °C

Test method: 2.5/62.5

Tensile strength Rm

230 - 260 MPa at 20 °C

Yield strength Rp0.2 Rp0.2

110 - 130 MPa at 20 °C


Coefficient of thermal expansion α

2.36E-5 1/K at 20 °C

Specific heat capacity cp

900 J/(kg·K) at 20 °C

Thermal conductivity λ

110 - 130 W/(m·K) at 20 °C


Electrical conductivity σel

1.60E+7 - 1.80E+7 S/m at 20 °C

Technological properties


Non heat treatable alloy

Processing history

Temper: O3, homogenized and stress relieved

This material data has been provided by Gleich Aluminum.

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.