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docume t was las is u d

© BSI 2 0

ISBN 9 8 0 5 0 6 8 0 5

ICS4 0 5.15

Th folowin BSI refere ces relate to th work on this s a d rd:

C mmit e refere ce ACE/61

Draf for comme t 0 /3 181 9 DC

P blcation his ory

Fir t publsh dOcto er 19 1

Secon (prese t) e ition, Nov mber 2 0

Ame dme t is u d since publ cation

Foreword i

2 Normativ references 1

3 Tech ical req irement 1

Bibl o rap y 6

L is of tables

Table 1 – Tech ical req irement for Cu-Ni-Si aloy ro s, bar an

sectio s (he t t e ted) 2

Table 2 – Tech ical req irement for Cu-Ni-Si aloy forgin s ock an

forgin s (he t t e ted) 4

Summary of pag s

T is d cument comprises a fro t cov r, an inside fro t cov r,

pages i to i pages 1 to 6, an inside back cov r an a back cov r

P bl shing information

T is British Standard is p blshed by BSI an came intoeffect

o 30 Nov mber 20 9 It was prepared by Panel ACE/61/ 16,

Co p r and mis celane us alo s, u der the auth rity of Tech ical

Commit e ACE/61, M etal c materials for aeros pace purp s es.A ls

of organiz tio s representedon this commit e can be o tained o

req es to it secretary

Superses ion

T is British Standard su er edes BS 2B 2 :20 1, which is with rawn

Information about this document

T is is a ful re isio of BS 2B 2 T e principal chan e from the

pre io s editio is that req irement are s ated in tab lar format in

ac ordance with EN 450 -1

Ha ard warnings

WARNING T is British Stan ard cal s for the use of su s ances

an /or proced res that can be injurio s to he lth if adeq ate

precautio s are n t taken It refer only to tech ical suitabi ty an

d es n t absolv the user from legal o lgatio s relatin to he lth

an safety at any s age

Use of this document

It has be n as umed in the preparatio of this British Stan ard that the

e ecutio of it provisio s wi be ent us ed to ap ro riately q al fed

an e perienced peo le,f or wh se use it has be n pro uced

Presentational conventions

T eprovisio s of this s andard are presented in roman (ie u rig t)

type It req irement are e pres ed either as a set of ins ructions or in

sentences in which theprincipal auxi ary v rb is “shal ”

Comme tary, e planatio and ge eral informativ material is prese ted

in smaler italc ty e, and do s n t co situte a n rmativ eleme t

Cont actual and legal considerations

T is p blcatio d es n t p rp r to inclu e al theneces ary provisio s

of aco t act User areresp nsible f or it cor ect ap lcatio

Compl ance with a British Standard cann t co f er immu ity from

le al o lgatio s

1 Scope

T is British Stan ard specifes req irement for co per -nickel-si co

al oy su pl ed in the folowin forms:

a) rods, bar an sectio s: he t t e ted,desig atio B 2 A;

b) forgin s ock:as man factured, designatio B 2 B;

c) forgin s: he t t e ted, desig atio B 2 C

T e folowin referenced d cument are in ispensable for the

applcatio of this document For dated references, o ly the editio

cited ap les For u dated references, the lates editio of the

referenced document (inclu in any amen ment ) ap les

BS B 10 , Proced re for ins pection, tes ting and a ce tance of wrou ht

co p r alo s

BS EN 1216 , Co per and co p r alo s – Rod for ge eral purp s es

BS EN 1216 , Co per and co p r alo s – Wrou ht and unwrou ht

forging s tock

Material to this s an ard shal co form to Table 1 or Table2

NOTE The format and s ymb ls us ed in Table 1and Table 2 are derived

from EN 4 0 0-1

Table 1 T chnical r eq ireme t f or Cu-Ni-Si alo r ods, bar an sec io s ( heat tr eate )

2 C emical

comp sitio

%

Base

1

4.2 Meth d of prod c io E tru ed an /or roled, e tru ed an drawn, roled an drawn or forged

5 Tech ical specifcatio S ctio s 1an 2 of BS B 10

He t treatment

8 0 °C G h G 9 0 °C / WQ or O + h H 45 °C / t H 1h / AC

C arac eris ic

8.1 Tes sample( s) S e S ctio 2 of BS B 10

10 T ick nes of clad in o

e ch face

12

T

Temperature

h

p 2 MPa H 43

m MPa

H 5 0

16 Red cio of

area

18 She r s ren th R

c

19 Ben in

j

21

C

Temperature

h

r

a

r

R

ru ture

2 Notes (e lne 9 )

1

Table 1 T ch ical r eq ir eme t f or Cu-Ni-Si al o rods, bar and sec io s ( heat treate ) (co tinued)

4 External defec s — S e S ctio 2 of BS B 10

9 Dimensio al inspec io — BS EN 1216 clas B

2)

1

T tal imp rities e clu e Al an F

2)

Dimensio al tolerances for ro s larger than the siz ran es giv n in

BS EN1216 sh uld be agre d betwe n the su pler an the p rhaser

Table 2 T chnical r eq ireme t f or Cu-Ni-Si alo f orgin s ock and f orgin s ( heat treate )

2 C emical

comp sitio

%

Base

1

4.2 Meth d of prod c io E tru ed an /or roled, e tru ed an

drawn, forged or cas

Forged fomB 2 B s ock

5 Tech ical specifcatio S ctio s 1an 3 of BS B 10 S ctio s 1 an 4 of BS B 10

8 0 °C G h G 9 0 °C / WQ or

OQ + h H 45 °C / t H 1h / AC

C arac erisic

8.1 Tes sample( s) S e S ctio 3 of BS B 10 S e S ctio 4 of BS B 10

8.2 Tes piece( s) S e S ctio 3 of BS B 10 S e S ctio 4 of BS B 10

10 T hick nes of clad in o

e ch face

12

T

Temperature

h

p 2

m

16 Red cio of

area

18 She r s ren th R

c

19 Ben in

j

21

C

Temperature

h

r

a

r

R

ru ture

2 Notes ( se lne 9 )

1

Table 2 T ch ical req ir eme t for Cu-Al-Ni-Fe alo f orgin s ock an f orgin s ( heat tr eate ) (co tinued)

2 Ref erence he t treatment —

8 0 °C G h

G 9 0 °C / WQ or OQ +

h

H 45 °C / t H 1h / AC

4 External defec s — Forgin s ock:S e S ctio 3 of BS B 10 Forgin s: S e S ctio 4 of BS B 10

6

C mpres io at 9 0 °C G h G 9 0 °C to 2 %of originallen th

9 Markin — Forgin s ock:S eS ctio 3 of BS B 10 Forgin s: S e S ctio 4 of BS B 10

9 Dimensio al inspec io — Forgin s ock:BS EN 1216 clas A

2)

Forgin s: S e S ctio 4 of BS B 10

1

T tal imp rities e clu e Al an F

2)

Ap lcable to ro n forgin s ock.Dimensio al tolerances to be ap led to

ro n forgin sock o t ide the ran e giv en in BS EN 1216 an to f orgin

s ock of other shapes sh uld be agre d betwe n the su pler an the p r haser

Bibl ography

Standards publ cations

For dated references, o ly the editio cited apples For u dated

references, the lates editio of the referenced d cument (inclu in

any amen ment ) ap l es

EN 450 -1, M etal c materials – R les for th dra ting and pres entatio

of material s tandards – Par 1: Ge eral rules

1)

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