ASTM B251M-97(2003)

Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube [Metric]

ABSTRACT
This specification covers a group of general requirements for wrought seamless copper and copper alloy tube. The material shall be produced by either hot or cold working operations, or both, and shall be finished, unless otherwise specified, by such cold working and annealing or heat treatment as necessary to meet the properties specified. Dimensional requirements such as wall thickness are specified. The sampling requirements including lot size, portion size, and selection of sample pieces are given. Requirements for chemical analysis, and tension, microscopical examination, Rockwell hardness, grain size, expansion (pin), mercurous nitrate, and electrical resistivity tests are detailed. The material shall conform to the prescribed chemical composition, hardness, electrical resistivity, tensile strength, yield strength, elongation, and grain size.
SCOPE
1.1 This specification covers a group of general requirements common to several wrought product specifications. Unless otherwise specified in the purchase order, or in an individual specification, these general requirements shall apply to copper and copper-alloy tube supplied under Specifications B 68, B 75, B 135, and B 466.
Note 1—This specification is the metric companion of Specification B 251.

General Information

• Status: Historical
• Publication Date: 30-Sep-2003
• ICS: 23.040.15 - Non-ferrous metal pipes
• ICS: 77.120.30 - Copper and copper alloys
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.04 - Pipe and Tube

Relations

• Replaces: ASTM B251M-97 - Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube [Metric]
• Effective Date: 01-Oct-2003
• Replaced By: ASTM B251M-10 - Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube [Metric] (Withdrawn 2017)
• Effective Date: 01-Oct-2010

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B251M – 97 (Reapproved 2003)
Standard Specification for
General Requirements for Wrought Seamless Copper and
1
Copper-Alloy Tube (Metric)
This standard is issued under the fixed designation B251M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope B643 Specification for Copper-Beryllium Alloy Seamless
Tube
1.1 This specification covers a group of general require-
E3 Guide for Preparation of Metallographic Specimens
ments common to several wrought product specifications.
E8 Test Methods for Tension Testing of Metallic Materials
Unless otherwise specified in the purchase order, or in an
E18 Test Methods for Rockwell Hardness of Metallic Ma-
individual specification, these general requirements shall apply
terials
to copper and copper-alloy tube supplied under Specifications
E29 Practice for Using Significant Digits in Test Data to
B68, B75, B135, and B466/B466M.
Determine Conformance with Specifications
NOTE 1—This specification is the metric companion of Specification
E53 Test Method for Determination of Copper in Unalloyed
B251.
Copper by Gravimetry
E62 Test Methods for Chemical Analysis of Copper and
2. Referenced Documents
Copper Alloys (Photometric Methods)
2.1 The following documents of the issue in effect on date
E112 Test Methods for Determining Average Grain Size
of material purchase form a part of this specification to the
E255 Practice for Sampling Copper and Copper Alloys for
extent referenced herein:
the Determination of Chemical Composition
2
2.2 ASTM Standards:
E478 TestMethodsforChemicalAnalysisofCopperAlloys
B68 Specification for Seamless Copper Tube, Bright An-
nealed
3. Terminology
B75 Specification for Seamless Copper Tube
3.1 Definitions:
B135 Specification for Seamless Brass Tube
3.1.1 average diameter (for round tubes only)—the average
B153 Test Method for Expansion (Pin Test) of Copper and
ofthemaximumandminimumoutsidediameters,ormaximum
Copper-Alloy Pipe and Tubing
and minimum inside diameters, whichever is applicable, as
B154 Test Method for Mercurous Nitrate Test for Copper
determined at any one cross section of the tube.
Alloys
3.1.2 coil—a length of the product wound into a series of
B170 Specification for Oxygen-Free Electrolytic Copper—
connected turns. The unqualified term “coil” as applied to tube
Refinery Shapes
usually refers to a bunched coil.
B193 Test Method for Resistivity of Electrical Conductor
3.1.2.1 bunched—a coil in which the turns are bunched and
Materials
held together such that the cross section of the bunched turns
B428 Test Method for Angle of Twist in Rectangular and
is approximately circular.
Square Copper and Copper Alloy Tube
3.1.2.2 double layer flat—a coil in which the product is
B466/B466M Specification for Seamless Copper-Nickel
spirally wound into two connected disk-like layers such that
Pipe and Tube
one layer is on top of the other. (Sometimes called “double
layer pancake coil” or “double layer spirally wound coil.”)
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper 3.1.2.3 level or traverse wound—a coil in which the turns
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
are wound into layers parallel to the axis of the coil such that
and Tube.
successive turns in a given layer are next to one another.
Current edition approved Oct. 1, 2003. Published November 2003. Originally
(Sometimes called “helical coil.”)
approved in 1979. Last previous edition approved in 1997 as B251M – 97. DOI:
10.1520/B0251M-97R03.
3.1.2.4 level or traverse wound on a reel or spool—a coil in
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
which the turns are positioned into layers on a reel or spool
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
parallel to the axis of the reel or spool such that successive
Standards volume information, refer to the standard’s Document Summary page on
turns in a given layer are next to one another.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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B251M – 97 (2003)
3.1.2.5 single layer flat—a coil in which the product is 3.1.5.1 tube, automotive and general service—a seamless
spirally wound into a single disk-like layer. (Sometimes called copper tube of small diameter conforming to a standard series
a“ pancake coil” or “single layer spirally wound coil.”) of sizes commercially known as Automotive and General
Ser
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B251M–97 Designation: B 251M – 97 (Reapproved 2003)
Standard Specification for
General Requirements for Wrought Seamless Copper and
1
Copper-Alloy Tube [Metric](Metric)
This standard is issued under the fixed designation B 251M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This specification covers a group of general requirements common to several wrought product specifications. Unless
otherwise specified in the purchase order, or in an individual specification, these general requirements shall apply to copper and
copper-alloy tube supplied under Specifications B 68, B 75, B 135, and B 466.
NOTE 1—This specification is the metric companion of Specification B 251.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
B 68 Specification for Seamless Copper Tube, Bright Annealed
B 75 Specification for Seamless Copper Tube
B 135 Specification for Seamless Brass Tube
B 153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B 154 Test Method for Mercurous Nitrate Test for Copper and Copper Alloys
B 170 Specification for Oxygen-Free Electrolytic Copper—Refinery Shapes
B 193 Test Method for Resistivity of Electrical Conductor Materials
B 428 Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube
B 466 Specification for Seamless Copper-Nickel Pipe and Tube
B 643 Specification for Copper-Beryllium Alloy Seamless Tube
E 3 Methods of Preparation of Metallographic Specimens
E 8 Test Methods for Tension Testing of Metallic Materials
E 18 Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E53Test Methods for Chemical Analysis of Copper 53 Test Methods for Determination of Copper in Unalloyed Copper by
Gravimetry
E 62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E 112 Test Methods for Determining Average Grain Size
E 255 Practice for Sampling Wrought Nonferrous Metals Copper and Copper Alloys for Determination of Chemical
Composition
6
E62Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
4
E112Test Methods for Determining Average Grain Size
E478Test Methods for Chemical Analysis of Copper Alloys 478 Test Methods for Chemical Analysis of Copper Alloys
3. Terminology
3.1 Definitions:
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe and
Tube.
Current edition approved Feb. 10, 1997. Published April 1997. Originally published as B251M–79. Last previous edition B251M–93.
Current edition approved Oct. 1, 2003. Published November 2003. Originally approved in 1979. Last previous edition approved in 1997 as B 251M – 97.
2
Annual Book of ASTM Standards, Vol 02.01.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail]ards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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B 251M – 97 (2003)
3.1.1 average diameter (for round tubes only)— the average of the maximum and minimum outside diameters, or maximum
and minimum inside diameters, whichever is applicable, as determined at any one cross section of the tube.
3.1.2 coil—alengthoftheproductwoundintoaseriesofconnectedturns.Theunqualifiedterm“coil”asappliedtotubeusually
refers to a bunched coil.
3.1.2.1 bunched—a coil in which the turns are bunched and held together such that the cross section of the bunched turns is
approximately circular.
3.1.2.2 double layer flat—a coil in which the product is spirally wound into two connected disk-like layers such that one layer
is on top of the other. (Sometimes called “double layer pancake coil” or “double layer spirally wound coil.”)
3.1.2.3 level or traverse wound—a coil in whic
...