当前位置：搜档网 › BS EN 755-9-2001 profiles, tolerances on dimensions and form

BS EN 755-9-2001 profiles, tolerances on dimensions and form

BRITISH STANDARD BS EN

755-9:2001

Incorporating

Corrigendum No. 1 Aluminium and

aluminium alloys — Extruded rod/bar, tube

and profiles —

Part 9: Profiles, tolerances on

dimensions and form

The European Standard EN 755-9:2001 has the status of a

British Standard

ICS 77.150.10

BS EN 755-9:2001

This British Standard, having been prepared under the direction of the Engineering Sector Committee, was

published under the authority of the Standards Committee and comes into effect on 15June 2001

? BSI 07-2001

ISBN 0 580 37046 1

National foreword

This British Standard is the official English language version of

EN 755-9:2001. Together with the standards listed in the following table, it supersedes BS 1474:1987, BS 4300-4:1973, BS 4300-12:1969 and BS 4300-15:1973 which are withdrawn

This part of BS EN 755 is published together with:

— BS EN 12020-1, Aluminium and aluminium alloys — Extruded precision profiles in alloys EN AW-6060 and EN AW-6063 — Part 1: Technical delivery;

The following table gives the full list of implemented European Standards which supersede the British Standards Superseded British

Standards Superseding European Standards

BS 1474:1987:

BS EN 515:1993, BS EN 573-3:1995, BS EN 573-4:1995, BS EN 755-1:1997, BS EN 755-2:1997, BS EN 755-3:1996, BS EN 755-4:1996, BS EN 755-5:1996, BS EN 755-6:1996, BS EN 755-7:1998, BS EN 755-8:1998, BS EN 755-9:2001, BS EN 12020-1:2001, BS EN 12020-2:2001 BS 4300-4:1973:

BS EN 515:1993, BS EN 573-3:1995, BS EN 573-4:1995, BS EN 755-1:1997, BS EN 755-2:1997, BS EN 755-3:1996, BS EN 755-4:1996, BS EN 755-5:1996, BS EN 755-6:1996, BS EN 755-9:2001BS 4300-12:1969:

Amendments issued since publication Amd. No. Date Comments

13301

Corrigendum No. 1

July 2001

Correction of supersession details in national foreword

BS EN 755-9:2001

? BSI 06-2001

i The UK participation in its preparation was entrusted by Technical Committee NFE/35, Light metals and their alloys, to Subcommittee NFE/35/5, Wrought aluminium and aluminium alloys, which has the responsibility to:

A list of organizations represented on this subcommittee can be obtained on request to its secretary.

Cross-references

The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue.

A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.

was last issued.

—aid enquirers to understand the text;

—present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests

informed;

—monitor related international and European developments and promulgate them in the UK.

ii blank

EUROPEAN STANDARD NORME EUROPéENNE EUROP?ISCHE NORM EN 755-9 April 2001

ICS 77.150.10

English version

Aluminium and aluminium alloys - Extruded rod/bar, tube and

profiles - Part 9: Profiles, tolerances on dimensions and form

Aluminium et alliages d'aluminium - Barres, tubes et profilés filés - Partie 9: Profilés, tolérances sur dimension et

forme

Aluminium und Aluminiumlegierungen - Stranggepresste Stangen, Rohre und Profile - Teil 9: Profile, Grenzabma?e

und Formtoleranzen

This European Standard was approved by CEN on 18 February 2001.

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 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 Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I TéE U R O PéE N

E N O R M A LI S A T I O N

EUR OP?IS C HES KOM ITEE FüR NOR M UNG

Management Centre: rue de Stassart, 36 B-1050 Brussels

? 2001 CEN All rights of exploitation in any form and by any means reserved

worldwide for CEN national Members.

Ref. No. EN 755-9:2001 E

Page 2

EN 755-9:2001

Contents

Foreword (3)

1Scope (4)

2Alloy groups (4)

3Tolerances on dimensions (5)

3.1Cross-sectional dimensions (5)

3.2Length (12)

3.3Squareness of cut ends (12)

4Tolerances on form (12)

4.1General (12)

4.2Straightness (12)

4.3Convexity - Concavity (13)

4.4Contour (14)

4.5Twist (15)

4.6Angularity (17)

4.7Corner and fillet radii (18)

Page 3

EN 755-9:2001

Foreword

This European Standard has been prepared by Technical Committee CEN/TC 132 "Aluminium and aluminium alloys", the secretariat of which is held by AFNOR.

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 October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001.

Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 5 "Extruded and drawn products" to prepare the following standard :

EN 755-9, Aluminium and aluminium alloys- Extruded rod/bar, tube and profiles - Part 9 : Profiles, tolerances on dimensions and form.

This standard is part of a set of nine standards. The other standards deal with :

EN 755-1, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 1 : Technical conditions for inspection and delivery.

EN 755-2, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 2 : Mechanical properties. EN 755-3, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 3 : Round bars, tolerances on dimensions and form.

EN 755-4, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 4 : Square bars, tolerances on dimensions and form.

EN 755-5, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 5 : Rectangular bars, tolerances on dimensions and form.

EN 755-6, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 6 : Hexagonal bars, tolerances on dimensions and form.

EN 755-7, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 7 : Seamless tubes, tolerances on dimensions and form.

EN 755-8, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 8 : Porthole tubes, tolerances on dimensions and form.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

Page 4

EN 755-9:2001

1 Scope

This part of EN 755 specifies the tolerances on dimensions and form for aluminium and aluminium alloy extruded profile with a cross section contained within a circumscribing circle not greater than 800 mm (see Figure 1).

This standard applies to extruded profiles for general engineering applications only.

The tolerances in this standard only apply to those dimensions that can be physically measured.

NOTE Some of the products listed in the present standard can be subject to patent or patent applications, and their listing herein does not in any way imply the granting of a licence under such patent right.

CEN/TC 132 affirms it is its policy that in the case when a patentee refuses to grant licences on standardised standard products under reasonable and not discriminatory conditions, then this product shall be removed from the corresponding standard.

Dimensions in millimetres

Figure 1 — Circumscribing circle

2 Alloy groups

For the purpose of this European Standard, the alloys are distributed into two groups which correspond to varying degrees of difficulty when manufacturing the products.

The division into group I and group II of the most commonly used general engineering alloys is specified in table 1. Grouping of other alloys is subject to agreement between purchaser and supplier.

Page 5

EN 755-9:2001

Table 1 — Alloy groups

Group I EN AW-1050A, EN AW-1070A, EN AW-1200, EN AW-1350

EN AW-3003, EN AW-3103

EN AW-5005, EN AW-5005A

EN AW-6101A, EN AW-6101B, EN AW-6005, EN AW-6005A, EN AW-6106,

EN AW 6008, EN AW-6060, EN AW-6063, EN AW-6063A, EN AW-6463 Group II EN AW-2007, EN AW-2011, EN AW-2011A, EN AW-2014, EN AW-2014A,

EN AW-2017A, EN AW-2024, EN AW-2030

EN AW-5019a, EN AW-5051A, EN AW-5251, EN AW-5052, EN AW-5154A,

EN AW-5454, EN AW-5754, EN AW-5083, EN AW-5086

EN AW-6012, EN AW-6018, EN AW-6351, EN AW-6061,

EN AW-6261, EN AW-6262, EN AW-6081, EN AW-6082

EN AW-7003, EN AW-7005, EN AW-7020, EN AW-7022, EN AW-7049A,

EN AW-7075

a EN AW-5019 is the new designation for EN AW-5056A.

3 Tolerances on dimensions

3.1 Cross-sectional dimensions

3.1.1 General

The tolerances on the dimensions listed below (see Figure 2) are specified in the relevant Tables 2 to 8.

A : wall thicknesses except those enclosing the hollow spaces in hollow profiles ;

B : wall thicknesses enclosing the hollow spaces in hollow profiles except those between two hollow spaces ;

C : wall thicknesses between two hollow spaces in hollow profiles ;

E : the length of the shorter leg of profiles with open ends ;

H : all dimensions except wall thickness.

Page 6

EN 755-9:2001

Figure 2 — Definition of dimensions A, B, C, E, H

3.1.2 Tolerances on dimensions other than wall thickness

The tolerances on dimensions shall be as specified in Tables 2 and 3. For profiles with open ends (see Figures 3, 4 and the relevant examples) the tolerances specified in Table 4 shall be added to those of Tables 2 and 3 for dimension H across open ended legs in order to obtain the tolerances on the gap between any opposite points on these ends.

Page 7

EN 755-9:2001

Table 2 — Tolerances on cross-sectional dimensions of solid and hollow profiles - Alloy group I

Dimensions in millimetres Dimension H Tolerances on H for circumscribing circle CD a b

Over Up to and

including CD 100100 < CD

200

200 < CD

300

300 < CD

500

500 < CD

800

-10± 0,25± 0,30± 0,35± 0,40± 0,50

1025± 0,30± 0,40± 0,50± 0,60± 0,70

2550± 0,50± 0,60± 0,80± 0,90± 1,0

50100± 0,70± 0,90± 1,1± 1,3± 1,5

100150-± 1,1± 1,3± 1,5± 1,7

150200-± 1,3± 1,5± 1,8± 2,0

200300--± 1,7± 2,1± 2,4

300450---± 2,8± 3,0

450600---± 3,8± 4,2

600800----± 5,0

a These tolerances do not apply to tempers O and Tx510. For these tempers, the tolerances shall be subject to

agreement between the supplier and the purchaser.

b For profiles with open ends, see Figures 3 and 4, the tolerances for H in the area of the open ends shall be

increased by the values specified in Table 4.

Table 3 — Tolerances on cross-sectional dimensions of solid and hollow profiles - Alloy group II

Dimensions in millimetres Dimension H Tolerances on H for circumscribing circle CD a b

Over Up to and

including CD 100100 < CD

200

200 < CD

300

300 < CD

500

500 < CD

800

-10± 0,40± 0,50± 0,55± 0,60± 0,70

1025± 0,50± 0,70± 0,80± 0,90± 1,1

2550± 0,80± 0,90± 1,0± 1,2± 1,3

50100± 1,0± 1,2± 1,3± 1,6± 1,8

100150-± 1,5± 1,7± 1,8± 2,0

150200-± 1,9± 2,2± 2,4± 2,7

200300--± 2,5± 2,8± 3,1

300450---± 3,5± 3,8

450600---± 4,5± 5,0

600800----± 6,0

a These tolerances do not apply to tempers O and Tx510. For these tempers, the tolerances shall be subject to

agreement between the supplier and the purchaser.

b For profiles with open ends, see Figures 3 and 4, the tolerances for H in the area of the open ends shall be

increased by the values specified in Table 4.

Page 8

EN 755-9:2001

Table 4 — Additions to the tolerances on cross-sectional dimensions H of solid and hollow profiles with

open ends - Alloy groups I and II

Dimensions in millimetres

Dimension E

Over Up to and including Additions to the tolerances on H in Tables 2 and 3 for dimensions across the ends of open ended

profiles

-20-

2030± 0,15

3040± 0,25

4060± 0,40

6080± 0,50

80100± 0,60

100125± 0,80

125150± 1,0

150180± 1,2

180210± 1,4

210250± 1,6

250-± 1,8

Figures 3 and 4 below show open ends on hollow and solid profiles. The determination of tolerances on cross-sectional dimensions H is shown in the following calculation examples 1 and 2.

Examples of tolerance calculations across open ended profiles.

EXAMPLE 1

Dimension H : 20 mm

Dimension E : 100 mm

Circumscribing circle CD 100 mm to 200 mm

Alloy group I

The tolerance on H according to Table 2 is ± 0,40 mm ; plus the additional tolerance according to Table 4 which is ± 0,60 mm ; total tolerance on H is ± 1,0 mm.

Page 9

EN 755-9:2001

Figure 3 — Hollow profile with open end

EXAMPLE 2

Dimension H: 40 mm

Dimension E : 50 mm

Circumscribing circle CD 100 mm to 200 mm

Alloy group II

The tolerance on H according to Table 3 is ± 0,90 mm ; plus the additional tolerance according to Table 4 which is ± 0,40 mm ; total tolerance on H is ± 1,3 mm.

Figure 4 — Solid profile with open end

3.1.3 Tolerances on wall thickness of solid and hollow profiles

The tolerances on wall thickness of solid and hollow profiles shall be specified in Tables 5, 6, 7 and 8.

Page 10

EN 755-9:2001

Table 5 — Tolerances on wall thickness for profiles with a circumscribing circle up to and including

300 mm - Alloy group I

Dimensions in millimetres Nominal wall thickness

A, B or C

Tolerances on wall thickness

Wall thickness A Circumscribing circle

Wall thickness B a

Circumscribing circle

Wall thickness C

Circumscribing circle

Over Up to and

including CD 100100 < CD

300

CD 100100 < CD

300

CD 100100 < CD

300

-1,5± 0,15± 0,20± 0,20± 0,30± 0,25± 0,35 1,53± 0,15± 0,25± 0,25± 0,40± 0,30± 0,50

36± 0,20± 0,30± 0,40± 0,60± 0,50± 0,75

610± 0,25± 0,35± 0,60± 0,80± 0,75± 1,0

1015± 0,30± 0,40± 0,80± 1,0± 1,0± 1,2

1520± 0,35± 0,45± 1,2± 1,5± 1,5± 1,9

2030± 0,40± 0,50± 1,5± 1,8± 1,9± 2,2

3040± 0,45± 0,60-± 2,0-± 2,5

4050-± 0,70----

a For seamless hollow profiles the tolerances given for wall thickness C shall apply.

Table 6 — Tolerances on wall thickness for profiles with a circumscribing circle over 300 mm –

Alloy group I

Dimensions in millimetres Nominal wall thickness

A, B or C

Tolerances on wall thickness

Wall thickness A Circumscribing circle

Wall thickness B a

Circumscribing circle

Wall thickness C

Circumscribing circle

Over Up to and

including 300 < CD

500

500 < CD

800

300 < CD

500

500 < CD

800

300 < CD

500

500 < CD

800

-1,5± 0,25-----1,53± 0,35± 0,40± 0,60± 0,80± 0,75± 1,0 36± 0,40± 0,50± 0,80± 1,0± 1,0± 1,2 610± 0,45± 0,55± 1,0± 1,2± 1,2± 1,5 1015± 0,50± 0,60± 1,2± 1,5± 1,5± 1,9 1520± 0,55± 0,65± 1,7± 2,0± 2,0± 2,5 2030± 0,60± 0,70± 2,0± 2,5± 2,5± 3,0 3040± 0,70± 0,80± 2,2± 2,7± 2,7± 3,3 4050± 0,80± 0,90----a For seamless hollow profiles the tolerances given for wall thickness C shall apply.

Page 11

EN 755-9:2001 Table 7 — Tolerances on wall thickness for profiles with a circumscribing circle up to and including

300 mm - Alloy group II

Dimensions in millimetres Nominal wall thickness

A, B or C

Tolerances on wall thickness

Wall thickness A Circumscribing circle

Wall thickness B a

Circumscribing circle

Wall thickness C

Circumscribing circle

Over Up to and

including CD 100100 < CD

300

CD 100100 < CD

300

CD 100100 < CD

300

-1,5± 0,20± 0,25± 0,30± 0,40± 0,35± 0,50 1,53± 0,25± 0,30± 0,35± 0,50± 0,45± 0,65

36± 0,30± 0,35± 0,55± 0,70± 0,60± 0,90

610± 0,35± 0,45± 0,75± 1,0± 1,0± 1,3

1015± 0,40± 0,50± 1,0± 1,3± 1,3± 1,7

1520± 0,45± 0,55± 1,5± 1,8± 1,9± 2,2

2030± 0,50± 0,60± 1,8± 2,2± 2,2± 2,7

3040± 0,60± 0,70-± 2,5--

4050-± 0,80----

a For seamless hollow profiles the tolerances given for wall thickness C shall apply.

Table 8 — Tolerances on wall thickness for profiles with a circumscribing circle over 300 mm –

Alloy group II

Dimensions in millimetres

Nominal wall thickness

A, B or C

Tolerances on wall thickness

Wall thickness A Circumscribing circle

Wall thickness B a

Circumscribing circle

Wall thickness C

Circumscribing circle

Over Up to and

including 300 < CD

500

500 < CD

800

300 < CD

500

500 < CD

800

300 < CD

500

800

-1,5± 0,35-----1,53± 0,45± 0,50± 0,70± 0,90± 0,90± 1,2 36± 0,60± 0,60± 0,90±1,0± 1,2± 1,3 610± 0,65± 0,70± 1,2± 1,5± 1,5± 1,9 1015± 0,70± 0,80± 1,5± 1,8± 1,9± 2,3 1520± 0,75± 0,85± 2,0± 2,5± 2,5± 3,1 2030± 0,80± 0,90± 2,5± 3,0± 3,1± 3,7 3040± 0,90± 1,0± 3,0± 3,2--4050± 1,0± 1,1----a For seamless hollow profiles the tolerances given for wall thickness C shall apply.

Page 12

EN 755-9:20013.2 Length

If fixed lengths are to be supplied, this shall be stated on the order. The tolerances on fixed length shall be specified in table 9.

Table 9 — Tolerances on fixed length

Dimensions in millimetres

Circumscribing circle

diameter CD Tolerances on fixed length L Over Up to and including L 2 000 2 000 < L 5 000

5 000 < L 10 000

10 000 < L 15 000

15 000 < L 25 000

-10050 70 100 160 220 10020070 90 120 180 240 20045080 110 140 200 280 450

800

140

160

220

300

If no fixed length is specified in the order, profiles may be delivered in random lengths.

The length range and the tolerances on the random length shall be subject to agreement between purchaser and supplier.

3.3 Squareness of cut ends

The squareness of cut ends shall be within half of the fixed length tolerance range specified in Table 9 for both fixed and random length, e.g. for a fixed length tolerance of 100

mm, the squareness of cut ends shall be within

5 mm.

4 Tolerances on form

4.1 General

Tolerances on form for O and Tx510 tempers shall be subject to agreement between purchaser and supplier.

4.2 Straightness

Deviations from straightness, h s and h t , shall be measured as shown in Figure 5 with the profile placed on a horizontal baseplate so that its own mass decreases the deviation.

The straightness tolerance h t shall not exceed 1,5 mm/m length. Local deviations h s from straightness shall not exceed 0,6 mm/300 mm length.

Page 13

EN 755-9:2001

Key

1Baseplate

2Ruler

Figure 5 — Measurement of deviation from straightness

4.3 Convexity - Concavity

The convexity - concavity shall be measured as shown in Figure 6. The maximum allowable deviation on convexity - concavity for solid and hollow profiles shall be as specified in Table 10 as a function of profile thickness width W and thickness t.

Key

1Baseplate

Figure 6 — Measurement of convexity - concavity

Page 14

EN 755-9:2001

Table 10 — Convexity - concavity tolerances

Dimensions in millimetres Width W Deviation F

Hollow profiles a

Over Up to and

including Wall thickness

t 5

Wall thickness

t> 5

Solid profiles

-300,300,200,20

30600,400,300,30

601000,600,400,40

1001500,900,600,60

1502001,20,800,80

2003001,81,21,2

3004002,41,61,6

4005003,02,02,0

5006003,62,42,4

6008004,03,03,0

a If the profile has varying wall thicknesses in the measurement range, the thinnest wall thickness shall be used.

In the case of solid and hollow profiles with a width W of least 150 mm, the local deviation F1, shall not exceed 0,7 mm for any 100 mm of width W1.

4.4 Contour

For profiles with curved cross sections, the deviation at any point of the curve from the theoretically exact line as defined by the drawing, shall not be greater than the appropriate tolerance C specified in Table 11. Considering all points on the curve, a tolerance zone shall be defined as the zone between two envelopes running tangentially to all circles of diameter C which can be drawn with their centres lying along the theoretically exact line ; this is shown in Figure 7 (a and b).

a)b)

Figure 7 — Definition of contour tolerances

Page 15

EN 755-9:2001

Table 11 — Contour tolerances

Dimensions in millimetres

Width W of the contour Over Up to and

including Contour tolerance = diameter C of the tolerance circle

-300,30

30600,50

60900,70

901201,0

1201501,2

1502001,5

2002502,0

2503002,5

3004003,0

4005003,5

5008004,0

NOTE Contour tolerances can be checked by placing a section of the profile on a 1:1 scale projection of the drawing with the contour tolerance indicated on the drawing. Another recommended method is the use of suitable gauges (min./max.).

4.5 Twist

Twist T shall be measured as shown in Figure 8 by placing the profile on a flat baseplate the profile resting under own mass, and measuring the maximum distance at any point along the length between the bottom surface of the profile and the baseplate surface. Tolerances shall be as specified in Table 12 as a function of the width W and the length L of the profile.

Page 16

EN 755-9:2001

Key

Baseplate

Figure 8 — Measurement of twist Table 12 — Twist tolerances

Dimensions in millimetres

Width W

Twist tolerance T for length L

On total profile length L

Over

Up to and including

Per 1 000 of length a

Over 1 000 and including 6 000

Over 6 000

-301,22,53,030501,53,04,0501002,03,55,01002002,55,07,02003002,56,08,0

3004503,08,04506003,59,51,5 x L (L in metres)

600

800

4,0

10,0

Twist tolerances for lengths less than 1 000 mm shall be subject to agreement between purchaser and supplier.

BS EN 755-9-2001 profiles, tolerances on dimensions and form

相关文档

最新文档