ASTM B188-15
(Specification)Standard Specification for Seamless Copper Bus Pipe and Tube
Standard Specification for Seamless Copper Bus Pipe and Tube
ABSTRACT
This specification covers seamless copper bus pipe and tube intended for use as electrical conductors. The material shall be manufactured by such hot-working, cold-working, and annealing processing as to produce a uniform, seamless wrought structure in the finished product. The method of manufacture shall be such that the finished material conforms to the specified temper properties. The material shall conform to the requirements for the copper UNS no. as specified. The material shall be furnished in either the O60 (soft anneal) or H80 (hard drawn) temper. The material shall conform to the maximum electrical resistivity requirements prescribed. The product shall conform to the prescribed mechanical property requirements. The product shall conform to the prescribed bend testing requirements. The test specimens of material designated as Copper UNS Nos. C10100, C10200, C10300, C10400, C10500, C10700, and C12000 shall be free of cuprous oxide. When tested, material designated as Copper UNS nos. C10100, C10200, C10300, C10400, C10500, C10700, and C12000 shall pass the embrittlement test. The product shall be passed through an eddy-current testing unit adjusted to provide information on the suitability of the product for the intended application.
SIGNIFICANCE AND USE
18.1 For purposes of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.
Property
Rounded Unit for Calculated
or Observed Value
Chemical composition
nearest unit in the last right-hand place of figures
of the specified limit
Hardness
Electrical resistivity
nearest unit in the last right-hand place of figures
Electrical conductivity
Tensile strength
nearest ksi (5 MPa)
Elongation: below 5 %
nearest multiple of 0.5 %
5 % and over
nearest 1 %
SCOPE
1.1 This specification establishes the requirements for seamless copper bus pipe and tube intended for use as electrical conductors.
1.1.1 The product shall be made from one of the following coppers, as denoted in the ordering information:2
Copper
UNS No.2
Previously
Used
Designation
Type of Copper
C10100
OFE
Oxygen-free, electronic
C10200
OF
Oxygen-free without residual deoxidants
C10300
—
Oxygen-free, extra low phosphorus
C10400, C10500,
C10700
OFS
Oxygen-free, silver bearing
C11000
ETP
Electrolytic tough pitch
C11300, C11400,
C11600
STP
Silver-bearing tough pitch
C12000
DLP
Phosphorized, low residual phosphorus
1.2 Unless otherwise specified, any one of the above coppers may be furnished.
1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.
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Designation:B188 −15
StandardSpecification for
1
Seamless Copper Bus Pipe and Tube
This standard is issued under the fixed designation B188; 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 U.S. Department of Defense.
1. Scope* B577 Test Methods for Detection of Cuprous Oxide (Hydro-
gen Embrittlement Susceptibility) in Copper
1.1 Thisspecificationestablishestherequirementsforseam-
B601 Classification forTemper Designations for Copper and
less copper bus pipe and tube intended for use as electrical
Copper Alloys—Wrought and Cast
conductors.
B846 Terminology for Copper and Copper Alloys
1.1.1 The product shall be made from one of the following
2 E8/E8M Test Methods for Tension Testing of Metallic Ma-
coppers, as denoted in the ordering information:
terials
Previously
Copper
E18 Test Methods for Rockwell Hardness of Metallic Ma-
Used Type of Copper
2
UNS No.
Designation terials
E29 Practice for Using Significant Digits in Test Data to
C10100 OFE Oxygen-free, electronic
Determine Conformance with Specifications
C10200 OF Oxygen-free without residual deoxidants
C10300 — Oxygen-free, extra low phosphorus E53 Test Method for Determination of Copper in Unalloyed
C10400, C10500, OFS Oxygen-free, silver bearing
Copper by Gravimetry
C10700
E62 Test Methods for Chemical Analysis of Copper and
C11000 ETP Electrolytic tough pitch
4
C11300, C11400, STP Silver-bearing tough pitch
CopperAlloys (Photometric Methods) (Withdrawn 2010)
C11600
E243 Practice for Electromagnetic (Eddy Current) Examina-
C12000 DLP Phosphorized, low residual phosphorus
tion of Copper and Copper-Alloy Tubes
1.2 Unless otherwise specified, any one of the above cop-
E255 Practice for Sampling Copper and Copper Alloys for
pers may be furnished.
the Determination of Chemical Composition
1.3 Units—The values stated in inch-pound units are to be E527 Practice for Numbering Metals and Alloys in the
regarded as standard. The values given in parentheses are
Unified Numbering System (UNS)
mathematical conversions to SI units, which are provided for
3. Terminology
information only and are not considered standard.
3.1 For definitions of terms related to copper and copper
2. Referenced Documents
alloys, refer to Terminology B846.
3
2.1 ASTM Standards:
3.2 Definitions of Terms Specific to This Standard:
B193 Test Method for Resistivity of Electrical Conductor
3.2.1 bus pipe or tube—a high conductivity copper tubular
Materials
product used as an electrical conductor.
B428 Test Method for Angle of Twist in Rectangular and
Square Copper and Copper Alloy Tube
4. Ordering Information
4.1 Include the following specified choices when placing
1 orders for product under this specification, as applicable:
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe 4.1.1 ASTM designation and year of issue,
and Tube.
4.1.2 Copper UNS designation (1.1.1 and 1.2),
Current edition approved May 1, 2015. Published June 2015. Originally
4.1.3 Temper (Section 7),
approved in 1944. Last previous edition approved in 2010 as B188 – 10. DOI:
4.1.4 Dimensions and form (Section 12),
10.1520/B0188-15.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple
4.1.5 Length (Section 12),
expansion of the former standard designation system accomplished by the addition
4.1.6 Quantity–total weight or total length or number of
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate
pieces of each size (Table 1),
composition variations of the base alloy.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B188−15
A
TABLE 1 Dimensions and Weights of Copper Pipe, Nominal or Standard Pipe Sizes
Dimensions, in. (mm)
Nominal or Standard Cross-Sectional Area of Theoretical Weight, lb/ft
2 2
Pipe Size, in. Wall, in. (mm ) (kg/m)
Outside Diameter Inside Diameter Wall Thickness
Regular
1
⁄4 0.540(13.7) 0.376(9.55) 0.082(2.08) 0.118(0.761) 0.457(0.680)
3
⁄8 0.675(17.1) 0.495(12.6) 0.090(2.29) 0.165(1.06) 0.641(0.954)
1
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: B188 − 10 B188 − 15
Standard Specification for
1
Seamless Copper Bus Pipe and Tube
This standard is issued under the fixed designation B188; 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 U.S. Department of Defense.
1. Scope*
1.1 This specification establishes the requirements for seamless copper bus pipe and tube intended for use as electrical
conductors.
2
1.1.1 The product shall be made from one of the following coppers, as denoted in the ordering information:
Previously
Copper
Used Type of Copper
2
UNS No.
Designation
Previously
Copper Used Desig-
2
UNS No. nation Type of Copper
C10100 OFE Oxygen-free, electronic
C10200 OF Oxygen-free without residual deoxidants
C10300 — Oxygen-free, extra low phosphorus
C10400, C10500, OFS Oxygen-free, silver bearing
C10700
C11000 ETP Electrolytic tough pitch
C11300, C11400, STP Silver-bearing tough pitch
C11600
C12000 DLP Phosphorized, low residual phosphorus
1.2 Unless otherwise specified, any one of the above coppers may be furnished.
1.3 Units—Values The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are
mathematical conversions to SI units, which are provided for information only and are not considered standard.
2. Referenced Documents
3
2.1 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor Materials
B428 Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube
B577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
E8E8/E8M Test Methods for Tension Testing of Metallic Materials
E18 Test Methods for Rockwell Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
4
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E243 Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipe and
Tube.
Current edition approved Oct. 1, 2010May 1, 2015. Published November 2010June 2015. Originally approved in 1944. Last previous edition approved in 20092010 as
B188 – 09.B188 – 10. DOI: 10.1520/B0188-10.10.1520/B0188-15.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of a
prefix “C” and a suffix “00.” The suffix can be used to accommodate composition variations of the base alloy.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B188 − 15
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. Terminology
3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 bus pipe or tube—a high conductivity copper tubular product used as an electrical conductor.
4. Ordering Information
4.1 Include the following information specified choices when placing orders for product under this specification, as applicable:
4.1.1 ASTM designation and year of issue,
4.1.2 Copper UNS designation (1.1.1 and 1.2),
4.1.3 Temper (Section 7),
4.1.4 Dimensions and form (Section 12),
4.1.5 Length (Section 12),
4.1.6 Quantity–total weight or total length or numb
...
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