SIST EN 4700-006:2011
(Main)Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 006: Pre-production and production forgings
Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 006: Pre-production and production forgings
This standard defines the requirements for the ordering, manufacture, testing, inspection and delivery of wrought products in steel and heat resisting alloys. 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.
Luft- und Raumfahrt - Stahl und Hochwarmfesten Legierungen - Umgeformte Erzeugnisse - Technische Lieferbedingungen - Teil 006: Ausfallmuster und Serienschmiedestücke
Diese Europäische Norm legt die Anforderungen an die Bestellung, Herstellung, Prüfung, Inspektion und
Lieferung von Ausfallmuster und Serienschmiedestücken aus Stahl und hochwarmfesten Legierungen fest.
Série aérospatiale - Aciers et alliages résistant à chaud - Produits corroyés - Spécification technique - Partie 006: Pièces types et pièces de série
Cette Norme européenne définit les exigences relatives aux commandes, fabrication, essais, contrôles et livraison de produits corroyés en acier et alliages résistants à chaud.
Aeronavtika - Jeklo in zlitine, odporne proti vročini - Gneteni izdelki - Tehnična specifikacija - 006. del: Vzorci in izkovki za proizvodnjo
Ta standard določa zahteve za naročanje, proizvodnjo, preskušanje, pregledovanje in dobavo gnetenih izdelkov iz jekla in zlitin, odpornih proti vročini. Uporablja se, kadar se nanaša na standard EN za materiale in skupaj z njim, razen če je drugače določeno na risbi, naročilu ali urniku pregleda.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Stahl und Hochwarmfesten Legierungen - Umgeformte Erzeugnisse - Technische Lieferbedingungen - Teil 006: Ausfallmuster und SerienschmiedestückeSérie aérospatiale - Aciers et alliages résistant à chaud - Produits corroyés - Spécification technique - Partie 006: Pièces types et pièces de sérieAerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 006: Pre-production and production forgings77.140.85Železni in jekleni kovani izdelkiIron and steel forgings49.025.10JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 4700-006:2010SIST EN 4700-006:2011en,de01-maj-2011SIST EN 4700-006:2011SLOVENSKI
STANDARD
SIST EN 4700-006:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4700-006
September 2010 ICS 49.025.10 English Version
Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 006: Pre-production and production forgings
Série aérospatiale - Aciers et alliages résistant à chaud - Produits corroyés - Spécification technique - Partie 006: Pièces types et pièces de série
Luft- und Raumfahrt - Stahl und Hochwarmfesten Legierungen - Umgeformte Erzeugnisse - Technische Lieferbedingungen - Teil 006: Ausfallmuster und Serienschmiedestücke This European Standard was approved by CEN on 9 January 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
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 4700-006:2010: ESIST EN 4700-006:2011
EN 4700-006:2010 (E) 2 Contents Page Foreword . 3Introduction . 41Scope . 42Normative references . 43Terms and definitions . 64Wording of order . 65Health and safety . 66Technical requirements . 66.1General . 66.2Qualification requirements . 76.3Re-qualification requirements . 76.4Release requirements . 76.5Process control testing (Procedure X) . 86.6Retests . 86.7Special tests . 96.8Capability clause . 96.9Statistical process control . 96.10Inspection and test report . 10SIST EN 4700-006:2011
EN 4700-006:2010 (E) 3 Foreword This document (EN 4700-006:2010) 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 March 2011, and conflicting national standards shall be withdrawn at the latest by March 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 4700-006:2011
EN 4700-006:2010 (E) 4 Introduction This European 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. 1 Scope This European Standard defines the requirements for the ordering, manufacture, testing, inspection and delivery of pre-production and production forgings in steel and heat resisting alloys. 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 ISO 3651-1, Determination of resistance to intergranular corrosion of stainless steels — Part 1: Austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in nitric acid medium by measurement of loss in mass (Huey test) (ISO 3651-1:1998) EN ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels — Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid (ISO 3651-2:1998) EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1:2005) EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method (ISO 6507-1:2005) EN ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) (ISO 6508-1:2005) 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 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 2002-16, Aerospace series — Metallic materials — Test methods — Part 16: Non-destructive testing — Penetrant testing 1) EN 2003-2, Aerospace series — Steels — Test methods — Part 2: Izod impact test 1)
1) Published as ASD-STAN Prestandard at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). SIST EN 4700-006:2011
EN 4700-006:2010 (E) 5 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 2950, Aerospace series — Test method — Wrought heat resisting alloys — Semi-finished products and parts — Conditions for macrographic and micrographic examination — Atlas of structures and defects EN 2951, Aerospace series — Metallic materials — Test method — Micrographic determination of content of non-metallic inclusions 1) EN 3874, Aerospace series — Test methods for metallic materials — Constant amplitude force-controlled low cycle fatigue testing 1) EN 3987, Aerospace series — Test method for metallic materials — Constant amplitude force-controlled high cycle fatigue testing 1) 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 4259, Aerospace series — Metallic materials — Definition of general terms 1) EN 9100, Quality Management Systems — Requirements for Aviation, Space and Defence Organizations EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts EN 10027-1, Designation systems for steels — Part 1: Steel names EN 10045-1, Metallic materials — Charpy impact test — Part 1: Test method EN 10079, Definition of steel products TR 2410, Aerospace series — Metallic materials — Relationship between dimensional standards and material standards 2) AMS 2315, Determination of Delta Ferrite Content 3) AMS 2750, Pyrometry 3)
2) Published as ASD-STAN Technical Report at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). 3) Published by: SAE National (US) Society of Automotive Engineers http://www.sae.org/ SIST EN 4700-006:2011
EN 4700-006:2010 (E) 6 ASTM E709, Standard Guide for Magnetic Particle Testing 4) ASTM E1444, Standard Practice for Magnetic Particle Testing 4) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 4259 apply. For definitions specific to steel, see EN 10079. 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; surface protection, if appropriate; 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 satisfy the requirements of the order, drawing inspection schedule or material standard: see Table 2, line 5. The order, drawing or inspection schedule shall specify the tests to be performed upon (i) pre-forgings for qualification and/or requalification (ii) serial production forgings for process control testing (Procedure X: see 6.4) and (iii) batch release when cut-up testing or forgings is required. Unless otherwise specified on the order, drawing or inspection schedule, acceptance criteria for the tests are stated in the material standard,
4) Published by: ASTM National (US) American Society for Testing and Materials http://www.astm.org/ SIST EN 4700-006:2011
EN 4700-006:2010 (E) 7 the requirements for each line of which are detailed in Tables 2 and 3 of this technical specification. Table 2 related to lines 1 to 29 (inclusive) of the material standard and Table 3 relates to lines 30 onwards in which the subline format is also used. If a particular test is needed but not shown in a specific line in Tables 2 and 3, the requirement shall be specified on the order, drawing, inspection schedule or material standard. 6.2 Qualification requirements See line 100 in Table 3 of this technical specification. Qualification shall normally comprise assessment of pre-production forgings. See Table 2, section 4.2. 6.3 Re-qualification requirements Re-qualification of serial production forgings may be required, in the following cases: modification of the drawing; use of forging stock from a different source; modifications to the forging stock form and/or manufacturer route; modifications to an existing die; use of a new (replacement) die; modifications to the forging manufacturing route; when a significant time interval (usually several years) had elapsed between forging campaigns for a specific part number; when required by the purchaser for any other reason. Re-qualification testing requirements, especially location of test pieces, shall be identical to those used for the initial qualification of the pre-production forgings unless otherwise specified on the order, drawing or inspection schedule. 6.4 Release requirements Release testing shall be the responsibility of the manufacturer. The sampling procedure for release testing shall be one of the following, as specified on the order, drawing or inspection schedule. Where no procedure is specified, procedure A shall be used: SIST EN 4700-006:2011
EN 4700-006:2010 (E) 8 Procedure A: Separate forged test samples shall be procedure produced from the same batch of forging stock as that used to make the serial production forgings. Procedure A may be used alone unless denoted AX on the drawing, order or inspection schedule in which case it shall be applied only in conjunction with procedure X (See 6.5). Procedure B: Separate forged heat treatment control test samples shall be prepared which conform to the same material standard as the production forgings, but from a different batch of forging stock. Procedure B shall only be used when full heat treatment of the serial production forgings is carried out by the manufacturer and only in conjunction with procedure X (See 6.5). Procedure C: Integral test samples shall be removed from each forgings. The order, drawing of inspection schedule shall specify how many test samples shall be tested per batch. Procedure C may be used alone unless denoted CX on the drawing, order or inspection schedule in which case it shall be applied only in conjunction with procedure X (See 6.5). Procedure D: Test samples shall be machined from forging(s) selected from each production batch and at locations specified on the order, drawing or inspection schedule. When required, the manufactured shall inform the purchaser of the planned dates for extraction of samples and release testing in order that these operations may be witnessed. 6.5 Process control testing (Procedure X) Procedure X is process control procedure consisting of periodic “cut-up” testing to ensure that the serial production forgings continued to conform to the specified requirements. If procedure X is invoked by the order, drawing or inspection/manufacturing schedule and/or if procedures B, AX or CX are used for release tests (see 6.4), forgings shall be selected from series production at the frequency stated therein. It is recommended that the maximum number of forgings manufactured between repeat “cut-up” testing conforming to procedure X shall be as stated in the following Table 1: Table 1 Mass of forging (kg) Number of forgings ≤ 1 ≤ 2 000 1 < mass ≤ 2 ≤ 1 000 2 < mass ≤ 5 ≤ 400 5 < mass ≤ 25 ≤ 200 > 25 As stated on the order, drawing, inspection schedule
The testing requirements, including the location, type and size of test pieces shall be identical to those used for qualification of the pre-production. 6.6 Retests Retests shall be required if the specified acceptance criteria are not fully met during qualification testing on pre-production forgings, process control testing (procedure X) or batch release testing. If the test product or test piece preparation is faulty, testing shall be re-applied at the original frequency after rectification of the original cause of failure. At least one of the retests shall be from forgings from which the unsatisfactory result was obtained (unless already rejected by the manufacturer after suitable identification of the cause of failure). It insufficient material remains, the purchaser shall advise as to how to proceed. SIST EN 4700-006:2011
EN 4700-006:2010 (E) 9 If all retest results fulfil the specified acceptance criteria, the pre-production forging qualification/process control test (procedure X) shall be deemed satisfactory or the batch shall be accepted, as appropriate. If one or more retest results fail to fulfil the specified acceptance criteria, the following actions shall be taken: a) For qualification testing of pre-production forgings, advice shall be sought from the purchaser as to whether the retest results are acceptable for that part of the forging. If so, this shall be denoted by a note on the drawing, together with values which are acceptable for that location. Alternatively, if it is essential that the specified acceptance criteria are achieved at all locations, the purchaser may request modifications to be made to the manufacturer route. b) For process control testing (procedure X), the tests shall be repeated on a second forging taken as close as possible to the above in the production sequence and/or and extensive review shall be made of the manufacturing records of forgings made since the previous control tests. Serial production of the forging in question (and others if appropriate/deemed necessary) shall not continue until the cause of the unsatisfactory values has been ascertained and rectified). c) For batch release testing, the batch shall be either: rejected, or partially of fully re-heat treated if it is believed that re-heat treatment can rectify the cause of the failure and then test as a completely new batch from which the conforming products shall be accepted. The re-heat treatment shall be stated on the test and inspection report. No products or test sample shall be re-heat treated more than once. 6.7 Special tests Special tests and/or inspections 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, drawing or inspection schedule and shall be mutually agreed by the manufacturer and purchaser. 6.8 Capability clause The capability clause normally applies only to forgings of suitable size and configuration during process control testing (procedure X) and/or batch release testing when invoking procedure D. The number of batches after which sufficient statistical evidence is deemed to justify cessation of testing for a particular property (or reduced frequency of testing) shall be mutually agreed between the manufacturer and purchaser. However, this is 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. 6.9 Statistical process control Reduction in the extent of release testing, other than that defined in 6.7 above may be negotiated with the purchaser on the basis of appropriate statistical process control and/or statistical data. SIST EN 4700-006:2011
EN 4700-006:2010 (E) 10 6.10 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; order number; drawing and/or part number; material standard number; delivery condition and metallurgical code of the product; quantity of forgings; cast and batch number; batch and/or test samples heat treatment, if appropriate; results of all tests, retests and chemical analysis.
SIST EN 4700-006:2011
EN 4700-006:2010 (E) 11 Table 2 — Technical requirements for lines 1 to 29, where appropriate Material standard line reference Requirements Frequency of testing Qualification Release No. Title 1 Material designation EN 2032-1 and EN 10027-1 if applicable − − 2 Chemical composition The chemical composition of the alloy shall comply with requirements of the material standard. The samples taken for analysis shall be representative of the melt. The method of analysis shall be at the option of the manufacturer, but in cases of dispute, the reference method set out in the relevant EN or ISO standard shall be used. If no EN or ISO standard exists, a fundamental and agreed method of chemical analysis calibrated against accepted reference standards shall be used. In the case of remelted material, samples shall be normaly taken from the top of each ingot or ingot product. a) Vacuum arc remelted (VAR) ingots: the top of each ingot or ingot product. b) Electroflux or Electroslag remelted (ESR) ingots: the top and bottom ends of each ingot or ingot product. An analysis shall be made of each sample and certificates of analysis shall be supplied to the purchaser. The elements to be determined shall be as required by the material specification or as agreed between the manufacturer and the purchaser. Elements not quoted in the material standard shall not be intentionally added to the alloy without the agreement of the purchaser, except for the purpose of finishing the heat (e.g. addition of deoxidant); reasonable precautions shall be taken to prevent their inclusion during manufacture. The purchaser, in agreement with the manufacturer, may set a limit to the amount of one or more such elements and may require the amount of such elements to be stated in the certificate of analysis. The specified ranges of chemical composition are based on cast analyses. Any subsequent analytical checks shall take into consideration the heterogeneity normal to the alloy. Additionally for remelted products, the samples shall be representative for the remelted ingot, taking into account any macro segregation. 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 certificate of conformance. a) 1 per cast in the case of air melted or vacuum induction melted product b) 1 per VAR or 2 ESR ingot representing top and bottom positions a) 1 per cast in the case of air melted or vacuum induction melted product b) 1 per VAR or ESR ingot continued SIST EN 4700-006:2011
EN 4700-006:2010 (E) 12 Table 2 — 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 1 General The alloy shall be made by the process required by the material standard, unless otherwise agreed between the manufacturer and purchaser. If a specification permits alternative processes, the manufacturer shall decide which of them shall be used unless the purchaser states a particular preference on his order. In all instances, the process by which the alloy was made shall be indicated on the release note. 2 Consumable electrode remelted material 2.1 Except as provided in 2.3 or 2.4 at no time during remelting shall material of any other composition or type be introduced into the melting chamber, i.e. starter material and electrode stub-ends shall be of the same composition as the material being remelted. 2.2 Whenever possible and except as provided in 2.3, weld material used to join electrodes together and to join the electrode to the stub-end shall be of the same composition as the material being remelted. If such weld material is not obtainable, material of a similar composition to, or compatible with, the material being remelted may be used at the discretion of the manufacturer, unless the purchaser indicates that his prior agreement is required. 2.3 Alternatively to 2.1 and 2.2, for electroflux and vacuum arc remelting, the stub and any weld material may be different from that being remelted, provided that the remelted material is not contaminated with material from the stub-ends or weld and that, for vacuum arc remelting, the stub welding takes place outside the furnace. Remelting shall be terminated not less than 20 mm from the electrode/stub interface and, after completion of the remelting cycle, the electrode/stub interface shall be examined to verify that the stub and weld are intact. 2.4 For electroflux melting, material compatible with the composition of that being remelted shall be permitted to provide electrical contact to the furnace base plate, provided that the chemical composition of the melt is maintained.
− − 4.1 Form Pre-production and production forgings − − continued SIST EN 4700-006:2011
EN 4700-006:2010 (E) 13 Table 2 — Technical requirements for lines 1 to 29, where appropriate (continued) Material standard line reference Requirements Frequency of testing Qualification Release No. Title 4.2 Method of production Pre-production forgings: Prior to commencing series production of a particular design, pre-production forgings shall be produced in order to qualify the method of manufacture and equipment configuration and to demonstrate that the requirements of the purchaser can be met. The following requirements shall be specified on the order, drawing and/or inspection schedule: number of pre-production forgings to be produced for evaluation/qualification; heat treatment condition of the pre-production forgings including any requirements for machining prior to heat treatment; any areas on the forgings which are critical and for which special finishing prior to inspection is required together with the standard of such finish; type, number and locations of tests/inspections necessary to evaluate and qualify the method of manufacture such as dimensions, mechanical properties, grain flow, microstructure, macrostructure, etc.; whether an agreed method of manufacture is required. The pre-forgings shall be made from forging stock complying with the relevant EN material standard. Evaluation/qualification of the pre-production forgings shall be carried out an include those inspections and tests which will be performed on production forgings. All manufacturing parameters as well as test and inspection details and results shall be recorded and compiled into an inspection and testing report to allow definition of the optimum techniques to be used for production forgings including, where appropriate, the ultrasonic test method (probe, frequency, angle of incidence …). When all inspection and test results relating to pre-production forgings have been reported and considered as satisfactory by the purchaser, the manufacture shall compile a manufacturing schedule in accordance with EN 2078 and EN 9133 defining the forging stock, optimised production processes and inspection requirements. This shall be made available to, and/or be subject to written agreement with the purchaser as required. Series production shall commence when written agreement or an order has been received from the purchaser. Production forgings: The method of manufacture of production forgings shall be the same as that used for the manufacture of the pre-production forgings and in strict accordance with the manufacturing schedule. Any change in the forging requiring a revised drawing and/or change in method of manufacture shall only be made following written approval from the purchaser. The purchaser shall
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