Bsi bs en 02545 2 1995 (1999)

BRITISH STANDARD AEROSPACE SERIES BS EN 2545 2 1995 Titanium and titanium alloy remelting stock and castings — Technical specification — Part 2 Remelting stock The European Standard EN 2545 2 1995 has[.]

Titanium and titanium

The European Stand rd EN 25 5-2:19 5 has the status of a

British Stand rd

ICS:4 0 0.1

U C 6 9.2 5-4:6 0.1

This British Stan ard,ha ing

b en pre ared u der the

directionof the Engine ring

SectorBo rd, was publshed

u derthe authority of the

Stan ards Bo rd an comes

into fect on

1 Nov emb r1 9

© BSI 1 -1 9

The folowing BSI references

relate to the work on this

stan ard:

Commite reference ACE/61

Draft for comment 9 /77 1 DC

ISBN 0 5 0 2 0 7 0

The prep ration of this British Stand rd was entrusted to Tech ical

Commit e ACE/61, Inspection and testing requirements for aerosp ce

metal ic materials, upon which the fol owing bodies were represented:

Aluminium Federation

British Forg ing Industry Association

British Inv estment Casting Association

British I on and Ste l Producer ’ Association

British Ste l Industry

Cop er Dev elopment Association

Lig ht Metal Fou der ’ Association

Ministry of Defence

Seamles Ste l Tube Association

Society of British Aerosp ce Comp nies Ltd

Am endm ents is ued sinc publ cation

Pag e

National foreword

This British Stand rd has be n prep red b Technical Commit e ACE/61and is

the Eng lish lang uag e v er ion of EN25 5-2:19 5 A er ospa ce s r ie —

Ti a niuma nd tta nium a ll oy r emelting stock a nd ca st ngs — Te h ica l

spe ifica tion — Pa r t2: R emel ting stock, publshed b the European Commit e

for Stand rdization ( CEN)

EN25 5-2 was produced as a result of international dis us ions in which the

United King dom to k an activ e p rt

Cros referenc s The British Stand rds cor esponding to the European

Stand rds refer ed to in the text are identical in n mber and title to those g iv en

inclause2, with the exception of the thre Parts of EN20 2

A British Stand rd do s not purport to include al the neces ary prov isions of a

contract User of British Stand rds are responsible for their cor ect a pl cation

Com pl anc with a British Standard do s not of itselfc nfer im munity

f om leg al obl g ations

Summ ary of pag es

This document comprises a font cov er, an inside f ont cov er, p g es i andi,

theEN title p g e, p g es2 to4, an inside b ck cov er and a b ck cov er

This stand rd has be n up ated ( se cop rig ht d te) and ma hav e ha

amendments incorporated.This wi be indicated in the amendment ta le on the

inside f ont cov er

NORME EUROPÉENNE

ICS 4 0 0.1

Des riptor : Air raft in ustry, titanium,titanium aloy , forging, casting , melting, sp cification

Eng lish ver ion

Série aérosp tiale — Produits pour refusion et

pièces moulé s en titane et al ia es de titane —

Spécification technique —

Partie2: Produits pour refusion

Luft- und Raumfahrt — Vormaterial und

Gußstücke aus Titan und Titanleg ierung en —

Technis he Lieferbeding ung en —

Tei 2: Vormaterial

This European Stand rd was a prov ed b CEN on19 4-1 -25 CEN member

are bou d to comply with the CEN/ CENELEC Internal Reg ulations which

stipulate the conditions for g iv ing this European Stand rd the status of a

national stand rd without any alteration

Up-to-d te lsts and bibl og ra hical references concerning such national

stand rds ma be obtained on a plcation to the Central Sec etariat or to any

CEN member

This European Stand rd exists in thre oficial v er ions ( Eng lish, French,

German) A v er ion in any other lang uag e ma e b translation u der the

responsibi ity of a CEN member into its own lang uag e and notified to the

Central Sec etariat has the same status as the oficial v er ions

CEN member are the national stand rds bodies of Austria, Belg ium,

Denmark, Finland, France, Germany , Gre ce, I eland, I eland, Italy ,

Luxembourg , Netherlands, Norway , Portug al, Sp in,Sweden, Switz rland and

United King dom

European Commit e for Stand rdization

Comité Europé n de Normalsation

Europ is hes Komite für Normu g

Central Se retariat: rue de Stas art 3 , B- 10 0 Brus els

© 19 5 All rig hts of reproduction and commu ication in any form and b any means reserv ed in al

cou tries to CEN and its member s

Ref No EN 25 5-2:19 5 E

For word

This European Stand rd has be n prep red b the

European Association of Aerosp ce Man facturer

( AECMA)

After inquiries and v otes car ied out in ac ord nce

with the rules of this Association, this stand rd has

suc es iv ely receiv ed the a prov al of the National

Associations and the Oficial Serv ices of the member

cou tries of AECMA, prior to its presentation to

CEN

This European Stand rd shal be g iv en the status of

a national stand rd, either b publ cation of an

identical text or b endor ement, at the latest b

Nov ember19 5,and conflcting national stand rds

shal be withdrawn at the latest b Nov ember19 5

According to the CEN/CENELEC Internal

Reg ulations, the fol owing cou tries are bou d to

implement this European Stand rd: Austria,

Belg ium, Denmark, Finland, France, Germany ,

Gre ce, I eland, I eland, Italy , Luxembourg ,

Netherlands, Norway , Portug al, Sp in, Sweden,

Switz rland and United King dom

Contents

Pag e

Ta le 1 — S mmary of requirements 4

1 Scope and field ofappl cation

This stand rd specifies the p rticular requirements

for remelting stock intended for the man facture of

titanium and titanium aloy casting s

This stand rd shal be used in conju ction with

EN25 5-1

2 Norm ative ref rences

This European Stand rd incorporates b d ted or

und ted reference prov isions f om other

publ cations These normativ e references are cited

at the a propriate places in the text and the

publ cations are lsted hereafter For d ted

references,subsequent, amendments to or rev isions

of any of these publcations a ply to this European

Stand rd only when incorporated in it b

amendment or rev ision For u d ted references the

latest edition of the publ cation refer ed to a pl es

EN 20 2-1, A er ospa ce s r ie — Te t method s fr

meta ll ic ma ter ia ls — Pa r t1: Tensile te tng a t

a mbient temper a tur e

1)

EN 20 2-2, A er ospa ce s r ie — Te t method s fr

meta llic ma ter ia ls — Pa r t2: Tensile te tng a t

eleva ted temper a tur e

1)

EN 20 2-5, A er ospa ce s r ie — Te t method s fr

meta ll ic ma ter ia ls — Pa r t5: Uninter r upted cr eep

a nd r uptur e te tng

1)

EN 25 5-1, A er ospa ce s r ie — Ti a nium a nd

tta nium a l loy r emelting stock a nd ca stngs —

Te h ica l spe ifica tion — Pa r t1: Gener a l

r equir ements

3 Manufactur

The spong e and a ditions shal be obtained f om

sup ler a prov ed b the remelting stock

man facturer

Unles otherwise ag re d betwe n the man facturer

and the pur haser, only a prov ed wroug ht s ra

shal be used It shal consist of the remelting stock

man facturer’s own s ra or s ra f om an

a prov ed reproces ing plant

Unles otherwise ag re d betwe n man facturer and

pur haser, the use of machining chips obtained f om

external sour e is forbid en

Melting shal be car ied out u der v acu m

Charg es containing titanium spong e shal be

multiple melted

Remelting stock shal be man factured f om a

charg e ma e f om:

— v irg in materials ( spong e+al oy ing elements)

or

— v irg in materials plus a defined and constant

per entag e of a prov ed s ra up to7 % or

— v irg in materials and/ or a prov ed s ra at the

option of the man facturer This composition

shal be a pled u les otherwise specified on the

order or man facturing s hedule

4 Dim ensions and tolerances

The form,mas , dimensions and tolerances shal be

defined b ag re ment betwe n the manufacturer

and the pur haser

The f equency of ex mination a opted b the

man facturer shal be suficient to permit him to

certify compl ance with the requirements

5 Internal def cts

No defects prejudicial to the intended use

Unles otherwise ag re d betwe n the man facturer

and the pur haser and stated on the order or

inspection s hedule, test methods and ac eptance

c iteria shal be at the option of the man facturer

The f equency of ex mination a opted b the

man facturer shal be suficient to permit him to

certify compl ance with the requirements

6 External def cts

The v isual inspection shal not rev eal any sur ace

contamination or foreig n mat er including p int,

other than that a prov ed for marking

The f equency of ex mination a opted b the

man facturer shal be suficient to permit him to

certify compl ance with the requirements

7 Chem ical com position

Se EN25 5-1

8 Provision oftest sam ples

S ficient test samples shal be prov ided and

prep red f om each b tch in ac ord nce with the

requirements of EN25 5-1 for the tests required b

the material stand rd or inspection s hedule

1)

Publshed as AECMA Prestan ard at the date of publcation of this stan ard

9 Mechanical testing

W hen specified on the material stand rd, tensi e,

c e p rupture or c e p tests shal be ma e at a

f equency of one test per b tch and in ac ord nce

with:

— EN 20 2-1 for tensie testing at ro m

temperature;

— EN 20 2-2 for tensie testing at elev ated

temperature;

— EN 20 2-5 for c e p and c e p rupture testing

The result shal comply with the requirements of

the material stand rd

Unles otherwise specified on the order,al products

shal bear the fol owing marking :

— material stand rd n mber;

— p rent-cast n mber,

— identification of the man facturer and plant,

— such other marking as wi ensure ful

identification

The method of marking shal be at the option of the

man facturer prov ided the marking is permanent

Ta le 1 — Sum m ary of requirem ents

Inspe tion/Tes ing

Mechanical properties

at ro m temperature

Tensie test at ro m

temperature

EN 20 2-1 One per b tch

Mechanical properties

at ro m temperature

Tensie test at

elev ated temperature

EN 20 2-2 One per b tch

Cre p and c e p

rupture properties

9 I required Cre p test EN 20 2-5 One per b tch

List ofreferences

Se national foreword

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