EN 3120:2012

Aerospace series - Titanium alloy TI-P64003 - Cold worked and stress relieved - Seamless tube for pressure systems - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1 030 MPa

This European Standard specifies the requirements relating to:
Titanium alloy TI-P64003
Cold worked and stress relieved
Seamless tube for pressure systems
4 mm £ D £ 51 mm
690 MPa £ Rm £ 1 030 MPa
for aerospace applications.

Luft- und Raumfahrt - Titanlegierung TI-P64003 - Kaltverformt und spannungsarm geglüht - Nahtlose Innendruckrohre - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1 030 MPa

Diese Norm legt die Anforderungen an Titanlegierung TI-P64003 Kaltverformt und spannungsarm geglüht Nahtlose Innendruckrohre 4 mm <+/- D <+/-  51 mm 690 MPa <+/- Rm <+/- 1 030 MPa für Anwendungen in der Luft- und Raumfahrt fest.

Série aérospatiale - Alliage de titane TI-P64003 - Étiré à froid et détensionné - Tube hydraulique sans soudure pour applications sous pression - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1 030 MPa

Cette Norme européenne spécifie les exigences relatives à :
Alliage de titane TI-P64003
Étiré à froid et détensionné
Tube hydraulique sans soudure pour applications sous pression
4 mm  D  51 mm
690 MPa  Rm  1 030 MPa
pour applications aérospatiales.

Aeronavtika - Titanova zlitina TI-P64003 - Hladno preoblikovana in s popuščenimi napetostmi - Nevarjena cev za tlačne sisteme - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1030 MPa

Ta evropski standard določa zahteve glede: titanove zlitine TI-P64003, hladno preoblikovane in s popuščenimi napetostmi, nevarjene cevi za tlačne sisteme 4 mm ≤ D ≤ 51 mm 690 MPa ≤ Rm ≤ 1030 MPa za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 31-Jan-2012
• Withdrawal Date: 30-Aug-2012
• ICS: 49.025.30 - Titanium
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4 - Metallic
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-Feb-2012
• Completion Date: 01-Feb-2012
• Ref Project: SIST EN 3120:2012 - Aerospace series - Titanium alloy TI-P64003 - Cold worked and stress relieved - Seamless tube for pressure systems - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1 030 MPa

Overview

EN 3120:2012 defines requirements for the aerospace series titanium alloy TI-P64003 supplied as cold-worked and stress-relieved seamless tube intended for pressure systems. The standard covers nominal outside diameters from 4 mm to 51 mm and tensile strength ranges 690 MPa to 1 030 MPa, specifying delivery condition, mechanical requirements, surface quality and inspection/test regimes appropriate for aerospace applications.

Key product characteristics required by the standard include:

• Form: seamless tube for hydraulic/pressure systems
• Delivery condition: cold worked and stress relieved (heat treatment example 380 °C ± 10 °C, t ≥ 30 min, air cooling or inert atmosphere)
• Diameter range: 4 mm ≤ D ≤ 51 mm
• Strength: Rm specified between 690 MPa and 1 030 MPa depending on size category
• Microstructure: elongated globular wrought alpha–beta; Widmannstätten structure is not acceptable

Key Topics

• Mechanical properties and limits: EN 3120:2012 sets tensile strength, proof stress (Rp0,2) and elongation requirements by diameter category. These properties ensure the tubes meet the high-strength demands of aerospace pressure systems.

• Surface and dimensional quality: Surface roughness limits are defined (external and internal Ra ≤ 0.8 μm; internal Rt ≤ 8.0 μm). Dimensional inspection, marking and other acceptance checks are specified to support traceability and fit-for-service.

• Testing and inspection: The standard references a suite of tests (see EN 4800-003) including hydraulic distention, internal pressure testing, ultrasonic inspection, impulse fatigue testing and contractile strain ratio (CSR) checks. Typical CSR acceptance is in the range 1.5 ≤ CSR ≤ 2.5 with additional tests triggered outside nominal CSR bands.

• Microstructure & metallurgical control: Specific microstructure criteria are required to avoid brittle or undesirable phases; method of melting and production routes follow EN 4800-003 guidance.

Applications

EN 3120:2012 tubes are intended for aerospace pressure systems such as hydraulic lines, fuel or pneumatic components where lightweight, corrosion-resistant and high-strength tubing is essential. Typical practical benefits:

• High strength-to-weight ratio for structural and pressure-bearing applications
• Fatigue resistance through controlled processing and testing (impulse fatigue tests referenced)
• Tight surface and dimensional tolerances to support leak-free fittings and assemblies

Manufacturers and purchasers should agree product qualification and lot acceptance programs as part of procurement to ensure the tubes meet intended service conditions.

Related Standards

EN 3120:2012 is part of the aerospace metallic materials series and references several normative documents, including:

• EN 4800-003 (tube technical specification) - detailed production, tests and samples
• EN 2043 - semi-finished product qualification requirements
• EN 4258 and EN 4500-4 - series organization and drafting rules
• ISO 4288, ISO 6772, SAE AS4076 - surface texture, impulse testing and CSR methods

For procurement, design and certification work, consult EN 3120:2012 together with the referenced documents to ensure compliance with inspection, testing and documentation requirements.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.49.025.30TitanTitaniumICS:Ta slovenski standard je istoveten z:EN 3120:2012SIST EN 3120:2012en,de01-maj-2012SIST EN 3120:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3120
February 2012 ICS 49.025.30 English Version
Aerospace series - Titanium alloy TI-P64003 - Cold worked and stress relieved - Seamless tube for pressure systems - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1 030 MPa
Série aérospatiale - Alliage de titane TI-P64003 - Étiré à froid et détensionné - Tube hydraulique sans soudure pour applications sous pression - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1 030 MPa
Luft- und Raumfahrt - Titanlegierung TI-P64003 - Kaltverformt und spannungsarm geglüht - Nahtlose Innendruckrohre - 4 mm ≤ D ≤ 51 mm - 690 MPa ≤ Rm ≤ 1 030 MPa This European Standard was approved by CEN on 27 August 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
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B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3120:2012: ESIST EN 3120:2012
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