IS 1285: Wrought Aluminium and Aluminium Alloys - Extruded Round Tube and Hollow Sections for General Engineering Purposes

14 Pages·2002·1.3 MB·English

by  Bureau of Indian Standards

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IS 1285 (2002): Wrought Aluminium and Aluminium Alloys -
Extruded Round Tube and Hollow Sections for General
Engineering Purposes [MTD 7: Light Metals and their Alloys]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
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“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
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“Knowledge is such a treasure which cannot be stolen”

IS1285:2002

Indian Standard
WROUGHT ALUMINIUM AND ALUMINIUM
ALLOYS — EXTRUDED ROUND TUBE AND HOLLOW
SECTIONS FOR GENERAL ENGINEERING
PURPOSES — SPECIFICATION
( Third Revision)
Ics 77.150.10

0 BIS2002
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
August 2002
Price Group 4
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Light Metals and Their Alloys Sectional Committee, MTD 7
FOREWORD
This Indian Standard (Third Revision) wasadopted bythe Bureau of Indian Standards, after the draft finalized
bythe Light Metals andTheirAlloys Sectional Committee hadbeenapproved bytheMetallurgical Engineering
Division Council.
This standard was first published in 1956 and subsequently revised in 1968 and 1975. While reviewing this
standard in the light of experience gained during these years, the Sectional Committee decided to revise the
standard.
Inthis revision, the following modifications have been made:
a) Extruded round tubes have been fi.u-therdivided into extruded structural tubes and extruded seamless
tubes.
b) One new aluminium alloy 31000 which ishaving application for general engineering purposes have
been included.
c) Temper condition ‘O’ has been incorporated for Aluminium grade 19000, 19500 and Aluminium
alloys 24345, 52000, 53000 and 54300.
The characteristics and typical uses of alloys aregiven isAnnex A.
The comparison of new IS tempers with old tempers isgiven inAnnex B,
The composition ofthe Committee responsible for formulation of this standard isgiven inAnnex C.
For the purpose of deciding whether particular requirement of this standard is complied with the final value,
observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with
IS2:1960 ‘Rulesforrounding offnumerical values(revisecf)’. The number ofsignificant placesretained inthe
rounded off value should be the same asthat ofthe specified value inthis standard.

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IS 1285:2002
Indian Standard
WROUGHT ALUMINIUM AND ALUMINUM
ALLOYS — EXTRUDED ROUND TUBE AND HOLLOW
SECTIONS FOR GENERAL ENGINEERING
PURPOSES — SPECIFICATION
( Third Revision)
1SCOPE 3 TERMINOLOGY
This standard covers the requirements for wrought 3.1 For the purpose of this standard, the following
aluminium and ahuninium alloy extruded round tubes definitions in addition to those given in IS 5047
andhollow sections forgeneral engineering purposes. (Parts 1and 2) shall apply.
2 REFERENCES 3.2 Extruded Round Tube
The following standards contain provisions which, Acircular hollow extrusion ofuniform wallthickness
through reference in this text constitute provision of not subjected to cold working.
this standard. At the time of publication, the editions
3.3 Extruded Structural Tube
indicated were valid. All standards are subject to
revision and parties to agreements based on this An extruded round tube brought to final dimensions
standard are encouraged to investigate the possibility by extruding through abridge type die, port hole die
of applying the most recent editions of the standards orby similar method atthe option ofthe producer.
indicated below:
3.4 Extruded Seamless Tubes
ISNo. Title
504:1963 Method of chemical analysis of An extruded round tube brought to final dimensions
aluminium and its alloys (revised) by extrusion ofhollow billet.
1608:1995 Mechanical testing of metals — ....
3.5 Hollow Section
Tensile testing (second revision) ,
2673:2002 Dimensions fo r wrought aluminium An extruded shape other than round tube, the cross-
and aluminium alIoys extruded section ofwhich completely encloses avoid orvoids, ;.+!
round tube (second revision)
3.6 Heat Treatment Batch
5047 Glossary of terms relating to
aluminium and aluminium alloys A quantity of material of one alloy, of the same
dimensions and produced in the same way and
Part 1:1986 Unwrought and wrought metals
complying oneofthefollowing conditions shallmake
(second revision)
a heat treatment batch:
Part 2:1979 Plant and operations, thermal
treatment, control and testing, a) The material solution treated in one furnace
finishing load,
5052:1993 Aluminium and its alloys-temper b) The material charged consecutively in a
designations (@t revision) continuous solution heat treatment furnace
6051:1970 Code for designation of aluminium during an 8h peri@
and itsalloys c) The press heat-treated extrusions of one .\
6477 : 1983 Dimensions forwrought aluminium extrusion charge, or
and aluminium alloys extruded d) Such material solution heat-treated by one
hollow sections (&r? revision) of the above methods and subsequently
10259:1982 General conditions for delivery and precipitation treated in one furnace load.
inspection of aluminium and However, a fiumaceload may comprise of more than
aluminium alloy products one heat treatment batch.
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IS 1285:2002
4SUPPLY OF MATERIAL conform to the requirements as given in Table 1. In
caseofdispute,theprocedure given inIS 504shall be
General requirements for the supply ofmaterial shall
thereferee method. However, when themethod isnot
conform to IS 10259.
given inIS504,thereferee method shallbe asagreed
to between the purchaser andthe manufacturer.
5 FREEDOM FROM DEFECTS
S.1 Theextruded round tubeandhollow sectionsshall 9MECHANICAL PROPERTIES
be sound and reasonably free fkomharmfid defects.
Thematerial whentested inaccordance with IS 1608,
5.2 Slight discoloration duetoheattreatment, minor shall have the mechanical properties as given in
polishing marks and spiral marks due to roll Table2.
straightening shall not be acause for rejection.
10SELECTION OF TEST SAMPLES
6CONDITIONS OF SUPPLY
10.1Extruded round tube and hollow sections of the
The material shall be supplied in the condition as same dmensions, produced in the same way and of
specified by the purchaser. While speci@ing the the same alloy, shallbe grouped into lots asgiven in
condition, the temper designations as laid down in Table3.
IS 5052 shallbe followed. .<
10.2 Aluminium and Non-Heat Treatable
7 DIMENSIONS AND TOLERANCES Aluminium Alloy
Dimensions and tolerances ofthe material shallbe as 10.2.1 Onetest sample shall be cut from an extruded
laid down inthe Indian Standards’indicated below: round tube orhollow section selection from each lot.
a) ExtrudSd round tube IS 2673, and 10.2.2 Before the test samples are cut off, they shall
b) Extruded hollow sections IS 6477, bemarkedtoidenti@themwiththelottheyrepresent.
10.2.3Thesample shallbetaken from the material as
8 CHEMICAL COMPOSITION
supplied and shall not be annealed or mechanically
The material, when analyzed as per 1S504 or any worked (except for straightening and machining to
otherestablished instrumental/chemical method, shall the shape.of the testpiece) before they are tested.
Table 1Chemical Composition ofWrought Aluminium andAluminium Alloy Extruded Round Tube
-.
and Hollow Sections for General Engineering Purposes
(Clause8)
-,
(Com positionLimitsareinPercentMuxUnlessShownOtherwise)

Desig- Ahrminimum Copper Magne- Silicon Iron Manga- Zhrc Tlta- Chromium Others Remarks
nation sium nese D
(1) (2) (3) (4) (5) (6) (7) (8) (9) (lo) (11) (12) (13)
1900 99.0,Min 0.1 0.2 0.5 0.7 0.1 0.1 - — 0.05 - Ti+v=o.07
19500 99.5,A4in 0.05 0.05 0.3 0.4 0.05 0.10 - 0.03 - TI+V=O.07
24345 Remainder 3.8,5.0 0.2-0.8 0.5-1.2 0.7 0.3-1.2 0.2 0.3 0.3 0.03 - TI+CI=0,3
31000 Remainder 0.1 0.1 0.6 0.7 0.8-1.5 0.2 0.2 0.05 0.15 -
52000 Remainder 0.1 1.7-2.6 0.6 0.7 0.5 0.2 0.2 0.25 0.05 0.15Cr+Mn=O.
53000 Remainder 0.1 2.8-4.0 0.6 0.7 0.5 0.2 0.2 0.25 0.05 0.15Cr+Mn=O.
54300 Remainder 0.1 4.0-4.9 0.4 0.7 0.5-1.0 0.2 0.2 0.25 0.05 0.15 –
62400 Remainder 0.1 0.4-0.6 0.5-0.9 0.7 0.1 0.1 0.1 0.1 0.05 0.15 -
63400 Remainder O.1 0.4-0.9 0.3-0.7 0.6 0.3 0.2 0.2 0.1 0.05 0.15 -
64423 Remainder 0.5-1.0 0.5-1.3 0.7-1.3 0.8 1.0 0.2 - 0.05 0.15 -
64430 Remainder 0.1 0.4-1.2 0.6-1.3 0.6 0.4-1.0 0.1 0.2 0.25 0.05 0.15 -
65028 Remainder 0.15-O. 0.7-1.2 0.4-0.8 0.7 0.2 0.2 0.2 0.I5-0.35 0.05 0.15 -
65032 Remainder 0.15-0. 0.7-1.2 0,4-0.8 0.7 0.2-0.8 0.2 0.2 0.2 0.05 0.15 -
74530 Remainder 0.2 1.0-1.5 0.4 0.7 0.2-0.7 4.0-5.0 0.2 0.2 0.05 0.15 -
l‘Tit&SO includes othergrainrefiningdenrents,if~Y.
T,l.=TotsdImpurities.
NOTE—Itistheresponsibilityofthesuppliertoensurethatanyetementnotspecificallylimitedisnotpresentinanamoun~suchasis
generallyacceptedashavinganadverseeffkt ontheproduct.Ifthepurchaser’srrwmrirementnsecessitatelimitsforan.velementnot
specif~dthese-aboutdbeag&d tobetweenthesupplierandthepurchaser.
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IS 1285:2002
Table 2 Mechanical Properties ofWrought Aluminium and Aluminium Alloy
Drawn Tubes for General Engineering Purposes
(Clause 9)
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Designation Condition Thickness u.zrercent Tensile ElongationinGauge
ProofStress, Strength Le&th ofSOmm,
Old
Over, UPtoand MP&h4in PerOcmL&fin
mm Including, Min”
mm
(1) (2) (3) (4) (5) (6) (7) (8) (9)
19000 F M — 65 — 18
o o — 110 25
19500 F M — 65 23
o o — 100 25
24345 0 0 120 240 12
T, w 225 375 10
—
T. WP 275 430 6
31000 F M 95 16
o o 130 20
52000 F M — 170 14
o o 60 160 225 16
53000 F M — 100 215 12
o o 75 200 265 14
54300 F M 130 275 11
o o 100 260 350 12
62400 T, WP 200 255 15
63400 F M — — 110 13
T, w 80 140 — 14
T~ P 3.0 140 170 7
3.0 12.5 110 150 7
T6 WP 150 185 7
64423 F M — 120 11
T, w 155 265 14
T, WP 265 330 9
64430 F M — 110 14
T, w 120 185 14
T. WP — 6.0 255 295 — 7
o 6.0 270 310 7
65028 F M 110 12
65032 T4 w 115 185 14
T, WP — 235 290 — 7
74530 Td; WI* 6.0 220 255 9
6.0 25.0 230 275 9
WP 6.0 245 285 7
6.0 25.0 265 310
(*Naturally agedfor30days)
NOTE—1MPa=1N/mmz=0.102kgflmmz.
PropertiesinF/Mconditionsaregivenforinformationorrlv,
10.3Heat Treatable Aluminium Alloys For Ti or Tccondition asspecified by the purchaser.
10.3.1 One test sample shall be cut from an extrqded 10.3.5 For material supplied in the T4condition, the
round tube or hollow section selected from each heat testsamplesshallbetested inthecondition assupplied
treatment batch.
unlessthepurchaser has specified that herequires the
10.3.2 Before any ofthe testsamples arecutoff, they test samples inthe Tbcondition.
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shall be marked to identify them with the heat
treatment batch. 11RETEST
10.3.3 The test samples after heat treatment shall not 11.1Shouldanyoftestpieces fwstselected failtopass
bemechanically worked (except forstraightening and the mechanical tests, two further samples from the
machining to the shape of the test piece) before they
same lotieat treatment batch shall be selected for
are tested.
testing, oneof which shall be from the tube or length
10.3.4 For material supplied in the F condition, the from which theoriginal test sample wastaken, unless
test samples shall be heat treated and tested in the thetubeorlengthhasbeenwithdrawn bythe supplier.
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IS 1285:2002
Table3 pieces from either of these additional samples fail,
(Clause 10.1) thelotrepresentedbythetestsamplesshallbedeemed
not to comply with this standard.
DiameterorEquivalent Massfor
Cross-section
12 MARKING
A > ~
. Over, Uptoand Aluminimum 12.1 Extruded round tube and hollow sections shall
mm Including, anditsNon- Treatable
be suitably marked for identification, with the
mm Heat-Treatable Aluminium
Alloys, Alloys, following details:
kg kg
a) Lot or heat-treatment batch number,
(I) (2) (3) (4)
10 500 1000 b) Alloy designation and condition, and
10 20 1000 2000
20 50 1500 2000 c) Indication ofthe source ofmanufacture.
50 2000 2000
12.1.1 The material may also be marked with the
Standard Mark.
11.1.1Forheat-treatable alloys,thesuppliershallhave
12.1.2 Theuse of Standard Mark isgoverned by the
the right, ifhe so desired, to reheat-treat the material
provision oftheBureau ofIndian Standard Act, i986
before two further samples are selected.
andtheRulesandRegulations made there under. The
11.1.2Shouldthetestpiecesfromboththeseadditional details of the conditions under which the Iicence for
samples pass, the lot prescribed represented by the the use of Standard Mark may be granted to
test samples shall be deemed to comply with the manufacturers orproducers maybe obtained fromthe
requirements ofmechanical properties. Shouldthetest Bureau of Indian Standards.
ANNEX A
(F’oreworc$
CHARACTERISTICS AND TYPICAL USES OF ALLOYS
Designation Characteristics Available Forms Typical Uses

(1) (2) (3) (4)
19000 Commercially pure Sheet, plate, extruded tube, Panelling and moulding,
aluminium, very wire,forgings equipment for food, chemical
ductile in annealed or and brewing industries,
extruded condition, architectural and builders
excellent resistant to hardwares, fasteners, welding
corrosion wires andelectrical guidetubes
19500 High purity aluminium, Sheet, plate, extrusion, tube, Fo@ chemical, brewing and
more resistant to wire,rolledrodandforgings processing equipment, marine
corrosion than other fittings, pressed and anodized
grades utility items, heat exchanger
tubes, condenser tubes, gas and
oiltransmission pipeline.
24345 Strong alloy that is Sheet, plate, extrusion tube, Stressed parts in aircrafts and
aged naturally at room wireandforgings other structures where high
temperature after strength is of primary
solution treatment and consideration, hydraulic tubes
has fair ductility inthis air-conditioning ducting fan
condition bladesandvehiclepanelling
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IS 1285:2002
Designation Characteristics Available Forms Typical Uses
(1) (2) (3) (4)
31000 Stronger and harder than Extrusion rods and tubes, General purpose alloy for
19000 and has good sheet,plate,wire and forgings moderate strength applications
workability, weldability and for chemical equipment,
corrosion resistance irrigation tubing, heat
exchangers fhmiture,
condenser, air-conditioning,
ducting, pressure cookers
utensils, detonator caps,
pressure vessels, fan blades and
vehicle panelling
52000 Ductile in sofl condition, Sheet plate, extrusion tube, Paneling and structures,
but work hardens rapidly wire andforgings hydraulic tube appliances,
becoming extremely tough. refrigeration tubing condenser
Has high resistance to and heat exchanger tubes, gas
corrosion in marine andoiltransmission pipelines
atmosphere
53000 Ductile in the soft Sheet, extrusion, tube, wire Ship building rivets; pressure
condition, but work-hardens androlled rods vessels and other processing
rapidly, becoming tanks; cryogenics and welded
extremely tough. High structures
resistance to corrosive
attack especially in marine
atmosphere
54300 Similar to 53000 Sheet, plate, extrusion and Welded structures, cryogenic
forgings applications, structural marine
applications, rail and road tank
cars, rivets and missile
components
62400 Medium strength alloy. Tube Further where appearance and

Gives good surface finish bending chamcteristics are

and has excellent bending important, such as furniture
characteristics applications
63400 Suitable for iniricate Extrusion, wire, tube rolled Architectural uses and other
extruded sections of rod andforgings similar applications where
medium strength, forms surface finish is important and
well in W condition, highly medium strength would suffice.
resistant tocorrosion Electrical conduits, tubes for
wave guides, gas and oil
transmission pipelines
64423 Stronger than 64430 andhas Extmsions Applications requiring good
superior machinability strength and machinabilityy,
such as textile machinery
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components

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