SIST EN 13920-2:2004

Overview

SIST EN 13920-2:2004 is a European Standard developed by CEN that defines requirements for unalloyed aluminium scrap with a minimum aluminium content of 99.5%. As a key part of the broader EN 13920 series on aluminium and aluminium alloy scrap, this standard focuses on scrap material derived from production processes, including sheet, strip, tube, and lithographic sheet scrap. It establishes specifications related to the chemical composition, physical characteristics, and metal yield of unalloyed aluminium scrap to ensure quality and consistency for recycling and remelting purposes.

The standard supports efficient aluminium recycling by setting rules that maintain material purity and improve secondary aluminium production outcomes, which is critical for environmental sustainability and the circular economy within the aluminium industry.

Key Topics

• Scope and Definitions
  Applies specifically to unalloyed aluminium scrap with at least 99.5% aluminium content. It excludes scrap containing surface treatments or contaminants that could affect melt quality.

• Characteristics of Scrap

  • Minimum thickness: 0.20 mm
  • Free from oil, grease, dust, plastics, and any foreign materials
  • Surface treatments and residues in containers are prohibited to avoid impurities

• Chemical Composition Requirements
  Limits are set for key impurities and alloying elements typically found in scrap, including:

  • Silicon (max 0.25%)
  • Iron (max 0.40%)
  • Copper, manganese, magnesium, zinc, titanium, and other elements have strict maximum levels, usually below 0.07%
    Aluminium content must be at least 99.5%, calculated as the remainder after accounting for impurities.

• Metal Yield
  The metal yield from scrap conforming to the standard is typically 95%, ensuring efficient recovery of aluminium during remelting. Variations in metal yield may occur with thinner scrap or minor foreign material presence.

• Ordering Information and Compliance
  Includes detailed guidance on specifying scrap categories, consignment mass, delivery periods, and any deviations from standard requirements. Adherence to sampling, testing, and arbitration procedures is covered under EN 13920-1.

Applications

SIST EN 13920-2:2004 is essential for companies involved in:

• Aluminium recycling and remelting
  Provides criteria to classify and accept scrap materials suitable for high-quality secondary aluminium production.

• Manufacturing and production scrap management
  Allows producers using unalloyed aluminium in sheets, strips, or tubes to categorize their offcuts and scrap according to recognized standards, facilitating scrap sales and exchanges.

• Trade and supply chain management
  Supports transparency and quality assurance in the trading of unalloyed aluminium scrap across Europe, particularly for industries aiming to meet regulatory and environmental requirements.

• Environmental sustainability efforts
  Encourages the reuse of aluminium scrap with controlled quality, reducing primary aluminium demand and minimizing carbon footprint.

Related Standards

SIST EN 13920-2:2004 is part of a comprehensive series on aluminium scrap management, which includes:

• EN 13920-1:2003 – General requirements, sampling, and testing methods for aluminium scrap
• EN 13920-3 to EN 13920-16 – Cover scrap from various aluminium alloys, wire and cable scrap, post-consumer packaging scrap, and other specific scrap categories
• prEN 12258-3:2000 – Terms and definitions for aluminium scrap, providing standardized vocabulary

These interconnected standards ensure a holistic approach to aluminium scrap quality, classification, and recycling processes across the European market.

Keywords: SIST EN 13920-2:2004, unalloyed aluminium scrap, aluminium recycling, aluminium scrap standards, chemical composition aluminium scrap, metal yield aluminium scrap, aluminium scrap classification, CEN standards, European aluminium scrap regulations