SIST EN 4002:2007

SIST EN 4002:2007 is the Slovenian adoption of EN 4002:2007 from CEN. It specifies aluminium alloy AL-P2219-T81 sheet and strip for aerospace applications, including the required composition, product form, heat-treatment condition, mechanical properties, and inspection-related requirements.

What does SIST EN 4002:2007 specify?

SIST EN 4002:2007 specifies requirements for AL-P2219-T81 aluminium sheet and strip used in aerospace applications. The covered product form is rolled sheet and strip in the thickness range given in the title and scope.

The document is organized as a short European material standard with a foreword, an introduction, Clause 1 on scope, and Clause 2 on normative references. The main technical content is presented in the requirements tables, which connect the alloy designation, processing condition, properties, and inspection items.

What are the key requirements of SIST EN 4002:2007?

SIST EN 4002:2007 ties the material designation AL-P2219-T81 to a defined aerospace product form and manufacturing route. The standard covers sheet and strip produced by rolling, so a buyer or manufacturer knows exactly which semi-finished product is in scope.

The chemical composition is controlled by listed elements, including Si, Fe, Cu, Mn, Mg, Zn, Ti, V, Zr and Al. In practice, this means the alloy must be made to a defined chemistry, not just to a name, so material traceability and melt control matter.

The standard specifies delivery conditions for T31 and T81 and links them to heat treatment and subsequent processing. This matters because the final condition affects strength, formability and consistency from batch to batch.

Mechanical properties are set for proof stress, tensile strength and elongation, with separate requirements by thickness range. The properties are measured in the LT direction at ambient temperature, so testing must follow the stated orientation and condition to compare results correctly.

Inspection and quality-control items are tied to EN 4400-2. The standard points to EN 4400-2 for test samples, test pieces, external defects, marking inspection and dimensional inspection, which means those checks are not reinvented here but are governed by the companion technical specification.

Electrical conductivity and hardness are also addressed for the delivery conditions, together with batch uniformity limits for hardness. For production control, this gives suppliers and purchasers additional acceptance checks beyond strength alone.

Product qualification is to be agreed between manufacturer and purchaser. In practice, that means the standard sets the material basis, while the qualification programme is confirmed for the specific supply relationship and application.

What terms does SIST EN 4002:2007 define?

• AL-P2219-T81 - the aluminium alloy designation used for the material covered by the standard.
• Sheet and strip - the product forms covered by the standard, supplied as rolled flat products.
• Delivery condition - the state in which the material is supplied, identified here by codes such as T31 and T81.
• Use condition - the condition used for the required property set in the standard.
• LT - the test-pieces are taken in the LT direction for the mechanical-property tests.
• Rp0,2 - the proof-stress requirement used to assess resistance to permanent deformation.
• Rm - the tensile-strength requirement used to assess the maximum stress capability.
• A50 mm - the elongation measured on a 50 mm gauge length.

Who uses SIST EN 4002:2007?

SIST EN 4002:2007 is used by aerospace material suppliers, manufacturers of aluminium flat products, purchasers, and quality and test laboratories. Engineers use it to specify the right alloy and condition. Buyers use it to order material with the correct property set. Quality managers and labs use it to check chemistry, mechanical properties, dimensions, marking, and batch consistency.

Which standards are used with SIST EN 4002:2007?

• EN 4258 - gives the general organization of aerospace metallic-material standards and explains how the different EN material standards relate to each other.
• EN 4400-2 - provides the technical specification for aluminium and aluminium alloy wrought products, Part 2, and is used here for test samples, test pieces, defect control, marking inspection, and dimensional inspection.
• EN 4500-2 - gives the rules for drafting and presenting aerospace material standards, with specific rules for aluminium, aluminium alloys and magnesium alloys.

What does the SIST EN 4002:2007 document contain?

The document contains the material designation, chemistry limits, method of melting, product form, method of production, delivery conditions, heat-treatment route, and the linked property requirements. It also includes the test direction, test temperature, proof-stress, tensile-strength, elongation, conductivity, hardness, and batch-uniformity items used for acceptance.

It points to EN 4400-2 for the practical inspection steps, including test sample selection, test-piece preparation, external-defect checks, marking inspection, and dimensional inspection. It also includes a qualification note that requires agreement between manufacturer and purchaser.

For a reader, this means the standard is mainly a controlled specification for ordering, manufacturing, testing, and accepting AL-P2219-T81 sheet and strip for aerospace use.