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Bronmetal
Aluminio AI

Aluminio AI

Product catalog summary

Overview

This document details the chemical composition specifications and technical characteristics of extruded aluminium alloys offered by Bronmetal. It covers multiple alloy series, focusing on flats, rods, tubes, and extruded profiles, with emphasis on EN AW designations and principal alloying elements.

1. Aluminium Alloy Series Specifications

Series 1000 (Pure Aluminium)

High-purity aluminium (99.0% to 99.99%) with trace elements such as Si, Fe, Cu, Mn, Mg, Cr, Ni, Zn, Ti, Ga, and V.
Special impurity limits for welding electrodes and filler wires.
Strict control on unspecified "Others" elements to ensure conformity.

Series 2000 (Aluminium-Copper Alloys)

Copper content ranges from ~1.8% to 6.8%, providing high strength.
Includes elements like Pb, Bi, Zr, Li for tailored properties.
Strict impurity limits to maintain alloy integrity.

Series 3000 (Aluminium-Manganese Alloys)

Manganese content typically 0.2% to 1.5%, offering good corrosion resistance and moderate strength.
Some alloys contain Zr and Ti for enhanced properties.
Quality control limits on impurities and "Others" elements.

Series 4000 (Aluminium-Silicon Alloys)

Silicon content from ~1% to 13.5%, providing wear resistance and low thermal expansion.
Some alloys include Bi and Co for specific applications.
Strict impurity and "Others" element limits.

Series 5000 (Aluminium-Magnesium Alloys)

Magnesium content from ~0.5% to 6%, known for excellent corrosion resistance and weldability.
Additional elements include Pb, Mn, Cr, Zr for enhanced performance.
Strict enforcement of impurity limits.

2. General Composition and Quality Control Notes

"Others" category includes unspecified elements; individual and total contents must not exceed defined thresholds.
Aluminium content calculation varies by refining process and alloy series.
Specific maximum impurity limits apply for welding electrodes and filler wires.
All alloys are standardized for extruded product formats: flats, rods, tubes, and profiles.

3. Alloy Composition Tables and Definitions

The document contains detailed tables listing elemental composition limits (weight %) for each alloy, including key elements such as Si, Fe, Cu, Mn, Mg, Cr, Ni, Zn, Ti, Ga, V, and others. Notes clarify special element restrictions (e.g., Be limited to 0.0003%-0.0005%, Pb max 0.003%) and the treatment of "Others" elements.

4. Product Formats

All alloys are intended for extrusion into flats, rods, tubes, and profiles, indicating typical manufacturing processes and applications.

5. Critical Information and Best Practices

Strict compliance with specified elemental ranges is mandatory for material conformity and performance.
Analysis of "Others" elements, while optional, helps detect potential non-conformities.
Special attention to elements with very low maximum limits (e.g., Be, Pb) is essential, especially in welding contexts.
Selection of alloy series should be based on required mechanical properties and corrosion resistance.

6. Summary of Alloy Series Characteristics

Series	Main Alloying Elements	Typical Applications	Key Notes
5000 Series	Magnesium (2-5%), Manganese, Zirconium	Marine, structural, corrosion resistant parts	Good corrosion resistance, moderate strength
6000 Series	Magnesium, Silicon (Mg2Si), Copper	General purpose structural, automotive, architectural	Good strength and corrosion resistance, heat treatable
7000 Series	Zinc (4-8%), Magnesium, Copper	High strength aerospace, sporting goods	Highest strength, lower corrosion resistance, requires careful impurity control

Conclusion

This document is a comprehensive reference for chemical composition limits and technical specifications of extruded aluminium alloys across multiple series. It is essential for manufacturers, purchasers, and quality control personnel to ensure compliance, maintain alloy integrity, and select appropriate materials for industrial applications requiring specific mechanical and chemical properties.

Catalog excerpts

Product format: Technical characteristics : Flats, rods, tubes and extruded aluminium profiles

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Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles A “Others” includes cited elements which have not had a specific limit indicated, as well as non-cited metallic elements. The manufacturer may analyse samples in search of traces of non-specified elements in the records or specifications. However, such analysis is unnecessary and may not cover all elements present in "Others'Mf analysis by the manufacturer or purchaser establishes that an element of "Others" surpasses the limit of "Each" or that the sum of varios elements from "Others" surpasses...

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Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles A “Others” includes cited elements which have not had a specific limit indicated, as well as non-cited metallic elements. The manufacturer may analyse samples in search of traces of non-specified elements in the records or specifications. However, such analysis is unnecessary and may not cover all elements present in "Others".If analysis by the manufacturer or purchaser establishes that an element of "Others" surpasses the limit of "Each" or that the sum of varios elements from "Others" surpasses...

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Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles A “Others” includes cited elements which have not had a specific limit indicated, as well as non-cited metallic elements. The manufacturer may analyse samples in search of traces of non-specified elements in the records or specifications. However, such analysis is unnecessary and may not cover all elements present in "Others".If analysis by the manufacturer or purchaser establishes that an element of "Others" surpasses the limit of "Each" or that the sum of varios elements from "Others" surpasses...

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]j\ Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles A “Others” includes cited elements which have not had a specific limit indicated, as well as non-cited metallic elements. The manufacturer may analyse samples in search of traces of non-specified elements in the records or specifications. However, such analysis is unnecessary and may not cover all elements present in "Others'Mf analysis by the manufacturer or purchaser establishes that an element of "Others" surpasses the limit of "Each" or that the sum of varios elements from "Others" surpasses...

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]j\ Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles

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BRON METAL Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles

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BRON METAL Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles A “Others” includes cited elements which have not had a specific limit indicated, as well as non-cited metallic elements. The manufacturer may analyse samples in search of traces of non-specified elements in the records or specifications. However, such analysis is unnecessary and may not cover all elements present in "OthersMf analysis by the manufacturer or purchaser establishes that an element of "Others" surpasses the limit of "Each" or that the sum of varios elements from "Others"...

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BRON METAL Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles

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Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles

Open the catalog to page 11

BRON METAL Product format: Extruded Technical Characteristics: Flats, rods, tubes and extruded aluminium profiles A “Others” includes cited elements which have not had a specific limit indicated, as well as non-cited metallic elements. The manufacturer may analyse samples in search of traces of non-specified elements in the records or specifications. However, such analysis is unnecessary and may not cover all elements present in "Others".If analysis by the manufacturer or purchaser establishes that an element of "Others" surpasses the limit of "Each" or that the sum of varios elements from "Others"...

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