Aerospace series - Titanium and titanium alloys - Technical specification - Part 008: Pre-production and production castings

This European Standard defines the requirements for the ordering, manufacture, testing, inspection and delivery of titanium and titanium alloy pre-production and production castings. 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 - Titan und Titanlegierungen Kneterzeugnisse - Technische Lieferbedingungen - Teil 008: Ausfallmuster- und Serienguβstücke

Diese Norm legt die Anforderungen an die Bestellung, Herstellung, Prüfung, Inspektion und Lieferung von
Ausfallmuster- und Seriengussstücken aus Titan und Titanlegierungen fest. Sie ist anzuwenden, wenn sie bei
Verweisung auf oder in Verbindung mit der EN-Werkstoffnorm erwähnt wird, sofern in der Zeichnung,
Bestellung oder der Prüfanweisung nichts anderes angegeben ist.

Série aérospatiale - Titane et alliages de titane - Spécification technique - Partie 008: Pièces types et pièces de série, moulées

Cette Norme européenne définit les exigences relatives aux commandes, fabrication, essais, contrôles et
livraison des pièces types et pièces de série, moulées en titane et alliages de titane. La présente norme est
applicable lorsqu'elle est citée dans la norme de matériaux EN et conjointement avec celle-ci sauf instruction
contraire figurant sur le plan, la commande ou la fiche d’essai.

Aeronavtika - Titan in titanove zlitine - Tehnična specifikacija - 008. del: Vzorci in ulitki za proizvodnjo

Ta standard določa zahteve za naročanje, proizvodnjo, preskušanje, pregledovanje in dobavo vzorcev in ulitkov za proizvodnjo iz titana in titanovih zlitin. 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

Status
Published
Publication Date
16-Nov-2011
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
16-Nov-2011
Due Date
21-Jan-2012
Completion Date
17-Nov-2011

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SLOVENSKI STANDARD
SIST EN 4800-008:2012
01-januar-2012

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Aerospace series - Titanium and titanium alloys - Technical specification - Part 008: Pre-

production and production castings
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Série aérospatiale - Titane et alliages de titane - Spécification technique - Partie 008:

Pièces types et pièces de série, moulées
Ta slovenski standard je istoveten z: EN 4800-008:2010
ICS:
49.025.30 Titan Titanium
SIST EN 4800-008:2012 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 4800-008:2012
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SIST EN 4800-008:2012
EUROPEAN STANDARD
EN 4800-008
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2010
ICS 49.025.30
English Version
Aerospace series - Titanium and titanium alloys - Technical
specification - Part 008: Pre-production and production castings

Série aérospatiale - Titane et alliages de titane - Luft- und Raumfahrt - Titan und Titanlegierungen

Spécification technique - Partie 008: Pièces types et pièces Kneterzeugnisse - Technische Lieferbedingungen - Teil

de série, moulées 008: Ausfallmuster- und Seriengußstücke
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.

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 Ref. No. EN 4800-008:2010: E

worldwide for CEN national Members.
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
Contents Page

Foreword .............................................................................................................................................................. 3

Introduction ......................................................................................................................................................... 4

1 Scope ...................................................................................................................................................... 5

2 Normative references ............................................................................................................................ 5

3 Terms and definitions ........................................................................................................................... 6

4 Wording of order .................................................................................................................................... 7

5 Health and safety ................................................................................................................................... 7

6 Technical requirements ........................................................................................................................ 7

Annex A (normative) Flaw penetrant inspection standard ........................................................................... 22

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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
Foreword

This document (EN 4800-008:2010) 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.
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
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.
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
1 Scope

This standard defines the requirements for the ordering, manufacture, testing, inspection and delivery of

titanium and titanium alloy pre-production and production castings. 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 2002-16, Aerospace series — Metallic materials — Test methods — Part 16: Non-destructive testing —

Penetrant testing

EN 2002-21, Aerospace series — Test methods for metallic materials — Part 21: Radiographic testing of

castings

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 3976, Aerospace series — Titanium and titanium alloys — Test method — Chemical analysis for the

determination of hydrogen content

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) Published as ASD-STAN Prestandard at the date of publication of this standard.

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SIST EN 4800-008:2012
EN 4800-008:2010 (E)

EN 4800-007, Aerospace series — Titanium and titanium alloys — Technical specification — Part 007:

Remelting stock

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 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)

TR 2410, Aerospace series — Metallic materials — Relationship between dimensional standards and

material standards
ASTM E 1320, Standard reference radiographs for titanium castings
AMS 2750, Pyrometry
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 4259 and the following apply.

3.1
batch
same melt, heat treat and HIP cycle
3.2
HIP
Hot Isostatically Pressed
3.3
melt
mass of homogeneous liquid metal from a single charge
3.4
remelt
solid metal resulting from a single melt
3.5
parent cast
cast of remelting stock to be used for the production of castings
3.6
remelting stock

metal supplied in cast or wrought form, the composition of which has been established by chemical analysis

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.
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
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 sub-line 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.
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
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 fair 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.
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.
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
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).

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;
 drawing and/or part 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.
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)
Table 1 — Technical requirements for lines 1 to 29, where appropriate
Material standard line
reference
Requirements Frequency of testing
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 determined 1 per cast

on samples cast integrally with/or gated to castings and cut from solidified material. 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
Specific requirements for hydrogen content:
1 per batch

The hydrogen content shall be determined on each batch in the delivery condition in accordance with

EN 3976.

Method of melting consists of multiple melt using combination of non-consumable electrode, consumable

3 Method of melting −

electrode and cold hearth (electron beam or plasma arc) melting practices. The technical requirements are

defined in the technical specification for remelt stock (EN 4800-007).
4.1 Form Pre-production and production castings −
Castings
4.2 Method of production −
Pre-production castings:

Prior to commencing series production of a particular design, pre-production castings 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 castings to be produced for evaluation/qualification;

 heat treatment condition of the pre-production castings including any requirements for machining

prior to heat treatment;

 any areas on the castings which are critical and for which a high or internal and/or external defect

standard is required;
continued
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SIST EN 4800-008:2012
EN 4800-008:2010 (E)

Table 1 — Technical requirements for lines 1 to 29, where appropriate (continued)

Material standard line
reference
Requirements Frequency of testing
No Title

4.2 Method of production  type, number and locations of tests/inspections necessary to evaluate and qualify the method of −

(concluded) manufacture such as dimensions, mechanical properties, microstructure, macrostructure, etc.;

 whether an agreed method of manufacture is required.

The pre-castings shall be made from remelt stock complying with the relevant EN material standard.

Evaluation/qualification of the pre-production castings shall be carried out and include those inspections and

tests which will be performed on production castings. 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 casting including the radiographic test method.

When all inspection and test results relating to pre-production castings have been reported and considered

as satisfactory by the purchaser, the manufacturer shall compile a manufacturing schedule in accordance

with EN 2078 and EN 9
...

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