TS EN 4500-004

TS EN 4500-004 is the titanium and titanium-alloy section of the EN 4500 series, which governs how material standards for metallic materials used in aerospace applications are drafted and presented. It adds specific drafting rules tailored to this material family, so that titanium-related material standards are structured and expressed consistently.

In aerospace, titanium and titanium alloys are important because they combine low density with high strength and good corrosion resistance, making them suitable for demanding engineering uses. In a material standard, the way the material is identified, classified and presented matters as much as the technical content itself: the alloy designation, product form, supply condition and intended application must be stated in a clear and unambiguous way. This part focuses on that presentation framework for titanium-based materials rather than on the performance of any one alloy.

Why titanium needs specific drafting rules

General rules for metallic material standards provide a common structure across aerospace materials, but titanium and titanium alloys often require more precise wording and organisation because of their particular engineering role and terminology. Specific drafting rules help authors present the relevant information in a consistent sequence and use terms that make the standard easier to interpret across procurement, specification and engineering contexts.

This edition corresponds to EN 4500-004:2024 and should be read as part of the wider EN 4500 series. It addresses the special presentation rules for titanium and titanium alloys, not the full set of aerospace material requirements on its own.

• Part of a framework for drafting aerospace metallic material standards.
• Covers specific rules for titanium and titanium alloys.
• Supports clear, consistent and comparable presentation of material standards.
• Works together with the general rules in the series.