SIST EN 3552:2005

Overview

SIST EN 3552:2005 specifies the requirements for aluminium alloy AL-P2618A-T6 or T62 in the form of clad sheet and strip with thickness from 0.4 mm up to and including 6 mm. Developed by the Slovenian Institute for Standardization (SIST) as part of the European aerospace series, this standard helps ensure the quality and consistency of aluminium alloy materials used in aerospace applications. It is equivalent to the European standard EN 3552:2005.

This document defines criteria for material composition, form, production methods, thickness, performance under specific conditions, and acceptance testing for these aerospace-grade aluminium products.

Key Topics

• Material Designation: Aluminium alloy AL-P2618A with temper options T6 or T62 ensures enhanced mechanical performance and reliability in demanding environments.
• Product Forms: Applies to clad sheet and strip, which enhances corrosion resistance and mechanical properties.
• Thickness Range: Standard covers products with thickness from 0.4 mm to 6 mm, suitable for a diverse set of aerospace structures.
• Production and Heat Treatment: Specifies rolling methods and detailed delivery conditions (T6, T62) for optimized properties.
• Technical Requirements: Refers to EN 4400-2 for thorough technical specifications regarding mechanical and physical properties, as well as testing methods.
• Cladding Composition: Utilizes aluminium alloy AL-P7072 for cladding, ensuring additional surface protection.

Applications

Aluminium alloy AL-P2618A-T6 or T62 clad sheet and strip are widely used across the aerospace industry due to their combination of high strength, durability, and resistance to corrosion. Typical use cases include:

• Aircraft Structures: Wing skins, fuselage panels, and load-bearing components that require a balance of lightweight design and strength.
• Spacecraft Components: Panels and secondary structures exposed to harsh environments and needing corrosion protection.
• Engine and Heat-Exposed Assemblies: Parts subjected to elevated temperatures and stress in aerospace settings.
• Aerospace Manufacturing: Production of precision-formed parts where consistent performance and quality certification are mandatory.
• Maintenance and Repair: Replacement and repair involving certified materials that comply with recognized international standards.

The standard is vital for aerospace manufacturers, material suppliers, engineers, and quality assurance personnel to ensure products meet strict industry requirements, enhancing safety and performance in flight-critical applications.

Related Standards

For complete compliance and effective application, consider closely aligned standards:

• EN 4400-2: Aerospace series - Aluminium and aluminium alloy wrought products - Technical specification - Sheet and strip.
• EN 4258: Aerospace series - Metallic materials - General organization of standardization.
• EN 4500-2: Aerospace series - Metallic materials - Rules for drafting and presentation of material standards, specifically for aluminium, aluminium alloys, and magnesium alloys.

These standards complement SIST EN 3552:2005, covering general requirements, classification, presentation, and technical specifications across a range of metallic materials used in aerospace engineering.

Keywords: aluminium alloy AL-P2618A, T6, T62, clad sheet, clad strip, aerospace, aluminium standards, SIST EN 3552, EN 3552, aerospace materials, aerospace manufacturing, aluminium cladding, AL-P7072, EN 4400-2, mechanical properties.