Customer Support: 131 242

i2i Intertek.com
  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Go to AMERICAS site
Dismiss alert
Please enter a keyword to search
Advanced search
Home
Publishers
ASTM
ASTM B 491/B491M : 2015 : REDLINE

ASTM B 491/B491M : 2015 : REDLINE

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Specification for Aluminum and Aluminum-Alloy Extruded Round Tubes for General-Purpose Applications

Available format(s)

PDF

Superseded date

26-12-2023

Superseded by

ASTM B 491/B491M : 2023 : REDLINE

Language(s)

English

Published date

08-01-2015

Publisher

American Society for Testing and Materials

$122.77
Including GST where applicable
AUD
CAD
CHF
CNY
DKK
EUR
GBP
HKD
IDR
INR
JPY
KRW
MXN
NOK
NZD
SEK
SGD
USD
ZAR
PDF - English
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

CONTAINED IN VOL. 02.02, 2017 Defines aluminum and aluminum-alloy extruded round tubes either in coils or straight lengths, for general purpose applications such as refrigeration service, gas lines, oil lines, and instrument lines, in the alloys and tempers in outside diameters of 0.250 through 0.750 in. [6.00 through 20.00 mm]. For diameters over 0.500 through 0.750 in. [over 12.50 through 20.00 mm], the diameter and wall-thickness tolerances and eddy-current test parameters, if required, shall be agreed upon by the producer and the purchaser.

Committee
B 07
DevelopmentNote
Supersedes ASTM B 491M and ASTM B 491 (12/2001)
DocumentType
Redline
Pages
7
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

1.1This specification covers aluminum and aluminum-alloy extruded round tubes either in coils or straight lengths, for general purpose applications such as refrigeration service, gas lines, oil lines, and instrument lines, in the alloys (Note 2) and tempers shown in Table 2 [Table 3], in outside diameters of 0.250 through 0.750 in. [6.00 through 20.00 mm]. For diameters over 0.500 through 0.750 in. [over 12.50 through 20.00 mm], the diameter and wall-thickness tolerances and eddy-current test parameters, if required, shall be agreed upon by the producer and the purchaser. Only tubes in aluminum 1200-H111 and 1235-H111 are sized after extrusion to minimize ovalness.

(A)Limits are in percent maximum unless shown as a range or otherwise stated.
(B)Analysis shall be made for the elements for which limits are shown in this table.
(C)For purposes of determining conformance to these limits, an observed value or a calculated value attained from analysis shall be rounded off to the nearest unit in the last right-hand place of figures used in expressing the specified limit, in accordance with the rounding method of Practice E29.
(D)Others includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not specified in the specification. However, such analysis is not required and may not cover all metallic Others elements. Should any analysis by the producer or the purchaser establish that an Others element exceeds the limit of Each or that the aggregate of several Others elements exceeds the limit of Total, the material shall be considered nonconforming.
(E) Other Elements—Total shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.
(F)The aluminum content shall be calculated by subtracting from 100.00 % the sum of all metallic elements present in amounts of 0.010 % or more each, rounded to the second decimal before determining the sum.
(G)Vanadium 0.05%, maximum.
(H)In case there of a discrepancy in the values listed in Table 1 with those listed in the “International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys” (known as the “Teal Sheets”), the composition limits registered with the Aluminum Association and published in the “Teal Sheets” should be considered the controlling composition. The “Teal Sheets” are available at http://www.aluminum.org/tealsheets.
(A)The basis for establishment of mechanical property limits is shown in Annex A1.
(B)To determine conformance to this specification, each value for tensile strength and for yield strength shall be rounded to the nearest 0.1 ksi and each value for elongation to the nearest 0.5 %, both in accordance with the rounding method of Practice E29.
(C)Tubes in this alloy are also available in the F (as extruded) temper. Tensile properties for F temper are not specified or guaranteed.
(D)Maximum tensile strength for coils. No maximum limit for extruded lengths.
(A)Tubes in this alloy are also available in the F (as extruded) temper. Tensile properties for F temper are not specified or guaranteed.
(B)Maximum tensile strength for coils. No maximum limit for extruded lengths.

1.2Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9 (for example, A91050 for aluminum 1050), in accordance with Practice E527.

Note 1:For extruded tubes see Specification B221, and for drawn tubes for general-purpose applications see Specification B483.

Note 2:Throughout this specification the term alloy in the general sense includes aluminum as well as aluminum alloy.

Note 3:For inch-pound orders specify B491; for metric orders specify B491M. Do not mix units.

1.3For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.

1.4The values stated in either inch-pound or SI units are to be regarded separately as standards. The SI units are shown either in brackets or in separate tables. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from two systems will result in nonconformance with the specification.

ASTM B 881 : 2017 : REDLINE Standard Terminology Relating to Aluminum- and Magnesium-Alloy Products
ASME B31.3 SPANISH : 2010 PROCESS PIPING

ANSI H35.2 : 2017 DIMENSIONAL TOLERANCES FOR ALUMINUM MILL PRODUCTS
MIL-STD-129 Revision R:2014 Military Marking for Shipment and Storage
ASTM E 607 : 2002 Standard Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere
ANSI H35.1M : 2004 ALLOY AND TEMPER DESIGNATION SYSTEMS FOR ALUMINUM (METRIC)
ASTM B 666/B666M : 2015 : REDLINE Standard Practice for Identification Marking of Aluminum and Magnesium Products
EN 14242:2004 Aluminium and aluminium alloys - Chemical analysis - Inductively coupled plasma optical emission spectral analysis
ASTM B 557 : 2015 : REDLINE Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
FED-STD-123 Revision H:2007 MARKING FOR SHIPMENT (CIVIL AGENCIES)
ASTM E 716 : 2016 : REDLINE Standard Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spark Atomic Emission Spectrometry
ASTM E 527 : 2016 : REDLINE Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
ASTM B 557M : 2015 : REDLINE Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
ANSI H35.1 : 2006 ALLOY AND TEMPER DESIGNATION SYSTEMS FOR ALUMINUM
ASTM B 660 : 2015 : REDLINE Standard Practices for Packaging/Packing of Aluminum and Magnesium Products
ANSI H35.2M : 2013 DIMENSIONAL TOLERANCES FOR ALUMINUM MILL PRODUCTS (METRIC)
ASTM E 215 : 2016 : REDLINE Standard Practice for Standardizing Equipment and Electromagnetic Examination of Seamless Aluminum-Alloy Tube

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Learn more on subscription solutions

or

Get in touch with us

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more