SIST EN 4800-005:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.NRYDQMHLuft- und Raumfahrt - Titan und Titanlegierungen Kneterzeugnisse - Technische Lieferbedingungen - Teil 005: SchmiedevormaterialSérie aérospatiale - Titane et alliages de titane - Spécification technique — Partie 005: Produits destinés à la forgeAerospace series - Titanium and titanium alloys - Technical specification - Part 005: Forging stock49.025.30TitanTitaniumICS:Ta slovenski standard je istoveten z:EN 4800-005:2010SIST EN 4800-005:2012en01-januar-2012SIST EN 4800-005:2012SLOVENSKI
STANDARD



SIST EN 4800-005:2012



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4800-005
November 2010 ICS 49.025.30 English Version
Aerospace series - Titanium and titanium alloys - Technical specification - Part 005: Forging stock
Série aérospatiale - Titane et alliages de titane - Spécification technique - Partie 005: Produits destinés à la forge
Luft- und Raumfahrt - Titan und Titanlegierungen Kneterzeugnisse - Technische Lieferbedingungen - Teil 005: Schmiedevormaterial This European Standard was approved by CEN on 20 February 2010.
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 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 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 and United Kingdom.
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B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4800-005:2010: ESIST EN 4800-005:2012



EN 4800-005:2010 (E) 2 Contents Page Foreword .3Introduction .41Scope .52Normative references .53Terms and definitions .64Wording of order .75Health and safety .76Technical requirements .7SIST EN 4800-005:2012



EN 4800-005:2010 (E) 3 Foreword This document (EN 4800-005:2010) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2011, and conflicting national standards shall be withdrawn at the latest by May 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 and the United Kingdom. SIST EN 4800-005:2012



EN 4800-005:2010 (E) 4 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described in EN 4258. SIST EN 4800-005:2012



EN 4800-005:2010 (E) 5 1 Scope This standard defines the requirements for the ordering, manufacture, testing, inspection and delivery of titanium and titanium alloy forging stock. It shall be applied when referred to and in conjunction with the EN material standard unless otherwise specified on the drawing, order or inspection schedule. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2002-001, Aerospace series — Metallic materials — Test methods — Part 001: Tensile testing at ambient temperature
EN 2002-002, Aerospace series — Metallic materials — Test methods — Part 002: Tensile testing at elevated temperature EN 2002-005, Aerospace series — Test methods for metallic materials — Part 005: Uninterrupted creep and stress-rupture testing EN 2003-009, Aerospace series — Test methods — Titanium and titanium alloys — Part 009: Determination of surface contamination EN 2032-1, Aerospace series — Metallic materials — Part 1: Conventional designation EN 2032-2, Aerospace series — Metallic materials — Part 2: Coding of metallurgical condition in delivery condition EN 2078, Aerospace series — Metallic materials — Manufacturing schedule, inspection schedule, inspection and test report — Definition, general principles, preparation and approval EN 2954-002, Aerospace series — Macrostructure of titanium and titanium alloy wrought products — Part 002: Macrostructure of bar, section, forging stock and forgings EN 2955, Aerospace series — Recycling of titanium and titanium alloy scrap EN 2957, Aerospace series — Method of preparation of forged samples EN 3114-001, Aerospace series — Test method — Microstructure of (. + ) titanium alloy wrought products — Part 001: General requirements EN 3114-002, Aerospace series — Test method — Microstructure of (. + ) titanium alloy wrought products — Part 002: Microstructure of bars, sections, forging stock and forgings EN 3683, Aerospace series — Test methods — Titanium alloy wrought products — Determination of primary α content — Point count method and line intercept method EN 3684, Aerospace series — Test methods — Titanium alloy wrought products — Determination of
transus temperature — Metallographic method EN 3873, Aerospace series — Test methods for metallic materials — Determination of fatigue crack growth rates using Corner-Cracked (CC) test pieces SIST EN 4800-005:2012



EN 4800-005:2010 (E) 6 EN 3874, Aerospace series — Test methods for metallic materials — Constant amplitude force-controlled low cycle fatigue testing 1) EN 3976, Aerospace series — Titanium and titanium alloys — Test method — Chemical analysis for the determination of hydrogen content EN 3987, Aerospace series — Test methods for metallic materials — Constant amplitude force-controlled high cycle fatigue testing EN 3988, Aerospace series — Test methods for metallic materials — Constant amplitude strain-controlled low cycle fatigue testing 1) EN 4050-1, Aerospace series — Test method for metallic materials — Ultrasonic inspection of bars, plates, forging stock and forgings — Part 1: General requirements 1) EN 4050-4, Aerospace series — Test method for metallic materials — Ultrasonic inspection of bars, plates, forging stock and forgings — Part 4: Acceptance criteria 1) EN 4258, Aerospace series — Metallic materials — General organization of standardization — Links between types of EN standards and their use EN 4259, Aerospace series — Metallic materials — Definition of general terms 1) EN 9100, Quality Management Systems — Requirements for Aviation, Space and Defense Organizations EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts EN ISO 643, Steels — Micrographic determination of the apparent grain size (ISO 643:2003) EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1:2009) prEN ISO 6892-2, Metallic materials — Tensile testing — Part 2: Method of test at elevated temperature (ISO/DIS 6892-2:2009) EN ISO 12737, Metallic materials — Determination of plane-strain fracture toughness (ISO 12737:2005) TR 2410, Aerospace series — Metallic materials — Relationship between dimensional standards and material standards 2) AMS 2750, Pyrometry 3)
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 4259 apply.
1) Published as ASD-STAN Prestandard at the date of publication of this standard. 2) Published as ASD-STAN Technical Report at the date of publication of this standard. 3) Published by: American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959 USA. SIST EN 4800-005:2012



EN 4800-005:2010 (E) 7 4 Wording of order The order shall clearly indicate:  quantities to be supplied;  dates of delivery;  material standard number;  delivery condition and metallurgical code of products;  dimensions and tolerances or reference to an appropriate dimensional standard;  product designation, when required;  forwarding address;  nature and type of packing, if required;  definition and frequency of any special tests and their retest procedures, if required. 5 Health and safety Products in the delivery condition shall fulfil the health and safety laws of the area of the country when and where it is to be delivered. A product safety data sheet shall be available. 6 Technical requirements 6.1 General The product shall be manufactured in accordance with the requirements of the relevant material standard and the applicable requirements of this specification. A manufacturing schedule shall be established and applied in accordance with EN 2078. The product shall satisfy the requirements of the material standard and/or order and shall be free from irregularities prejudicial to the subsequent manufacture or use of this product. Notwithstanding previous acceptance complying with this material standard, any product that is found, at a later stage, to contain such defects shall be rejected. Unless otherwise specified, the requirements in Tables 1 and 2 shall apply in conjunction with those of the relevant material standard. Table 1 relates to lines 1 to 29 (inclusive) of the material standard and Table 2 relates to lines 30 onwards in which the subline format is also used. Lines 2 to 98 may also be opened in line 100 if the material standard details specific qualification requirements. If a specific line number is not shown in Tables 1 and 2, the requirement is stated in the material standard and/or order. The requirements of the order and/or material standard shall over-ride the requirements of the technical specification. SIST EN 4800-005:2012



EN 4800-005:2010 (E) 8 6.2 Qualification requirements Qualification requirements when invoked by the material standard and/or order are detailed in Tables 1 and 2. Unless otherwise agreed between the manufacturer and purchaser the qualification phase shall be run on the first three batches. 6.3 Release requirements 6.3.1 Release tests Release testing shall be the responsibility of the manufacturer. The purchaser reserves the right to perform any of the inspections and/or tests required by the material standard and/or order. The test samples shall be representative of the product. When required the manufacturer shall inform the purchaser of the planned dates for extraction of samples and release testing in order that these operations may be witnessed. Tables 1 and 2 detail the requirements for each line of the material standard. Unless otherwise specifically requested by the purchaser, a particular inspection and/or test for release shall be carried out if corresponding acceptance criteria and/or values are stated in the applicable material standard, but see also in 6.3.5. 6.3.2 Retests If the test procedure or test piece preparation is faulty, testing shall be re-applied at the original frequency after rectification of the original cause of failure. When failure cannot be attributed to faulty testing, or test piece preparation, further test samples shall be selected at twice the original frequency from the product, one of which shall be that on which the original results were obtained unless already withdrawn by the manufacturer after suitable identification of the cause of failure. If all retest results are satisfactory, the batch shall be accepted. If one or more tests are unsatisfactory, the batch shall be:  rejected; or  100 % retested and the conforming products accepted; or  partially or fully re-heat treated if heat treatment can rectify the cause of the failure and tested as a completely new batch except for chemical composition, for which redetermination of hydrogen content is required. No product or test sample shall be re-heat treated more than twice; or  cut back and 100 % retested. 6.3.3 Rejection Any failure to meet the requirements of the material standard shall be cause for rejection. 6.3.4 Special tests Special tests may be required by the purchaser. In such cases, the nature of the test, method, frequency and technical requirements shall be specified on the order or inspection schedule and shall be mutually agreed by the manufacturer and purchaser. 6.3.5 Capability clause Where capability clause is invoked and where sufficient statistical evidence exists, the test need not be carried out (unless specifically requested by the purchaser). SIST EN 4800-005:2012



EN 4800-005:2010 (E) 9 However, this in no way reduces the obligations of the manufacturer to fulfil the requirements. If subsequent testing indicates that the product does not comply with the requirements, the batch shall be rejected. If sufficient statistical evidence does not exist, the test shall be carried out at a frequency agreed between the manufacturer and the purchaser. 6.3.6 Statistical process control Reduction in the extent of release testing, other than that defined in 6.3.5 above, may be negotiated with the purchaser on the basis of appropriate statistical process control and/or statistical data. 6.3.7 Inspection and test report The manufacturer shall furnish, with each delivery, a report conforming to the requirements of EN 2078 stating the following:  manufacturer's name and address and, if appropriate, identification of the plant;  order number;  material standard number;  delivery condition and metallurgical code of the product;  quantity and dimensions;  manufacturing and inspection schedule reference;  cast and batch number;  batch and/or test samples heat treatment conditions;  results of the tests and retests if any. 6.4 Traceability Each product shall be traceable to the cast, production batch and/or heat treatment batch at all stages of manufacture, testing and delivery.
SIST EN 4800-005:2012



EN 4800-005:2010 (E) 10 Table 1 — Technical requirements for lines 1 to 29, where appropriate Material standard line reference Requirements Frequency of testing Qualification Release No Title 1 Material designation See EN 2032-1. − − 2 Chemical composition The test samples used for chemical analysis shall be representative of the product and shall be taken from location corresponding to top and bottom of each ingot produced after the final melting stage. The method of chemical analysis shall be at the discretion of the manufacturer unless otherwise stated in the material standard or order. In cases of dispute, the method of chemical analysis shall be agreed between the manufacturer and purchaser preferably using existing chemical analysis standards. The measured chemical composition shall be stated on the inspection certificate. 2 per cast 2 per cast Specific requirements for hydrogen content: The hydrogen content shall be determined on each batch in the delivery condition in accordance with EN 3976. 1 per batch 1 per batch 3 Method of melting Method of melting shall consist of Cold Hearth (Electron Beam or Plasma Arc) and/or Consumable Electrode Vacuum Arc Melting. An initial non-consumable electrode melt is allowed provided a water cooled electrode is used. Some of the following requirements depend on whether the melting method includes Cold Hearth. 1 Raw material: Raw materials shall be purchased only from suppliers approved by the manufacturer and registered in his list of approved suppliers. Approval of suppliers shall be made in accordance with written procedures contained within the quality assurance system of the manufacturer. Titanium sponge and alloying elements: The requirements shall be specified by the manufacturer who shall also establish the following procedures for the evaluation and acceptance testing of each batch: — titanium sponge: manufacturing method, level of impurities, particle size, freedom from foreign particles; — alloying elements: chemical composition including level of impurities, particle size, freedom from foreign particles. − − continued SIST EN 4800-005:2012



EN 4800-005:2010 (E) 11 Table 1 — Technical requirements for lines 1 to 29, where appropriate (continued) Material standard line reference Requirements Frequency of testing Qualification Release No Title 3 Method of melting (continued) Recycling of scrap: See EN 2955. The categories and sub-categories of scrap which may be used by the manufacturer are given in the following table: – –
Scrap categories and sub-categories See EN 2955 – Table 1 Grade 1 a forging stock Grade 2 b forging stock
1.1 allowed allowed
1.2 not allowed allowed c
2.1 not allowed d allowed
2.2 not allowed allowed c
3.1 not allowed d allowed
3.2 not allowed
allowed c
4.1 not allowed d allowed e, f
4.2 4.2.1 not allowed
d allowed e
4.2.2
4.3 4.3.1 not allowed d allowed e
4.3.2
5.1 not allowed allowed
5.2 not allowed not allowed
6 not allowed not allowed
a Corresponds to Disc Quality (DQ) in European Titanium Technical Committee (ETTC) Publication n 5, February 1983. b Corresponds to Standard Quality (STQ) in European Titanium Technical Committee (ETTC) Publication n 5, February 1983. c Special treatment shall remove surface contamination produced by processing. d Except with the agreement of the purchaser of the forgings. e External produced turnings shall not be used except with the agreement of the purchaser of the forgings. f By agreement between the forger and the purchaser of the forgings tungsten carbide particle size ≤ 1 mm can be allowed.
continued SIST EN 4800-005:2012



EN 4800-005:2010 (E) 12
Table 1 — Technical requirements for lines 1 to 29, where appropriate (continued) Material standard line reference Requirements Frequency of testing Qualification Release No Title 3 Method of melting (continued)
Foundry scrap, castings, bolts or used components shall not be used. The manufacturer shall maintain a list of his approved scrap processors. The list shall indicate the categories of scrap for which the processors are approved. Each order for scrap shall refer to EN 2955, specify the category and, if necessary, the sub-category of the scrap. In the case of turnings the limits for O2, C and H2 shall also be specified. – –
2 Charge preparation: The melter shall establish procedures for the charge make up which shall include, if appropriate: — scrap categories and sub-categories to be used; — amount of recycled scrap; — charge composition; — requirements for recording the constitution of each charge; — compaction. The scrap shall be of the same alloy, or compatible with the final alloy composition.
3 Electrode constitution (if appropriate): Build up of electrodes and attachment of their stubs shall be carried out under a vacuum or inert gas atmosphere or in accordance with the procedure defined by the manufacturer and agreed by the customer.
4 Welding: Welds produced outside the melting furnace shall be visually examined for unacceptable discolouration in accordance with the standard defined by the manufacturer. The welding method to be used for fabricating electrodes, joining electrodes and joining stubs to the electrode shall be Metal Inert Gas (MIG) or Plasma in an inert gas atmosphere or Electron Beam (EB) under vacuum. In addition, stubs may be attached to electrodes by electric arc in a VAR furnace.
5 Melting: Melting process consist of: — a first melt using a consumable electrode, a non consumable electrode or a cold hearth process; — at least one consumable electrode r
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