Quality Standards 

ALDECA, a supplier of aluminum profiles, guarantees the manufacturing quality of its products in compliance with the following international industry standards:
ASTM B221

  "Standard Specification for Aluminum-Alloy Extruded Bars, Rods, Wire, Profile and Tubes"

  Performed in local university laboratories.

ASTM B557   Tensile Testing of Aluminum and Magnesium Alloys

Performed in the laboratories of aluminum billet suppliers (DUBAL, Dubai Aluminum).

ASTM E34  Chemical Analysis of Aluminum and Its Alloys.

ASTM E55  Chemical Composition Analysis of the Alloy

ASTM E716  Spectrochemical Analysis of the Aluminum Alloy.

Performed at ALDECA

ASTM E10   Brinell Hardness Test for Metallic Materials

ALDECA  offers extrusions in aluminum alloys 6061 and 6005, T6 temper (with hardness ranges of 15–17 Webster units) – suitable for aluminum stair and vehicle body designs – and 6063, T5 and T6 temper (with hardness ranges of 8–12 and 12–14 Webster units, respectively) for general-purpose profiles, according to the specific requirements of each order in compliance with ASTM E10.

Similarly, Class I Anodized Finish (0.7–0.75 mils or 18–19 microns) is a process that meets the standards of the Aluminum Anodizers Council and is inspected to ensure compliance with the following requirements:

"Measurement of stain resistance of anodic coatings on aluminum"

At ALDECA, this test is randomly performed 8 times per 8-hour shift, with a 100% pass rate. The test is designed to determine whether the oxide layer on the aluminum has been properly sealed.

The procedure involves applying a nitric acid solution with a concentration of 40% ± 5% to the surface for 2 minutes ± 5 seconds. After the specified time, the acid is rinsed off and a dye solution, different in color from the aluminum, is applied for 5 minutes ± 10 seconds.

The test is considered successful when no dye transfers onto the aluminum surface, confirming that the anodic layer sealing has prevented the nitric acid from attacking the surface. At ALDECA, this test is randomly conducted 8 times per 8-hour shift, achieving a 100% pass rate.

“Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of a Cross Section”  .

This test consists of measuring the thickness of the anodic layer on the aluminum surface using an electromagnetic device that detects changes in impedance. At ALDECA, this test is randomly performed 8 times per 8-hour shift, with readings always exceeding the anodic layer thickness required by the customer for Class II (0.4–0.5 mils or 10.16–12.7 microns).

“Standard Test Method for Measurement of Coating Mass Per Unit Area on Anodically Coated Aluminum”

This test consists of measuring the weight of the anodic layer by determining the weight loss after immersion in a solution of 85% phosphoric acid with 20 g/L of chromic acid. At ALDECA, this test is conducted once per day.

Minimum weight for Class II anodic layer: 2.4 mg/cm² (15.5 mg/in²).

“Standard Practice for Operating Salt Spray (Fog) Apparatus”

This test is carried out in the laboratories of chemical supplier HENKEL, USA, with results showing 3,000 hours of anodic layer resistance in a salt spray chamber.

All of these are ASTM standards that must be met and implemented in any plant with an aluminum anodizing line. Any other abrasion tests, whether using metals, pencils, or other instruments, do not provide an objective measurement of the anodic layer’s resistance on aluminum. Chemicals such as nitric, phosphoric, and chromic acids are used to simulate environmental effects on the anodized aluminum surface over time.