ASTM B302-17

Standard Specification for Threadless Copper Pipe, Standard Sizes

ABSTRACT
This specification establishes the requirements for threadless, seamless, and deoxidized copper pipes in straight lengths, in all nominal or standard pipe sizes, for piping systems that are assembled with brazed-joint pipe fittings. The pipe shall be produced from coppers with either UNS No. C10300 or C12200. The materials for manufacture shall be cast billets, bars, or tubes of such purity and soundness as to be suitable for processing by hot extrusion or piercing, and subsequent cold working to produce a uniform wrought structure in the finished product. Products shall be produced in the H58 (drawn general purpose) temper. Products shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (outer and inner diameters, wall thickness, cross-sectional area, theoretical weight, mass, length, and roundness or squareness), mechanical (tensile strength and Rockwell hardness), and chemical composition requirements. Products shall also meet performance requirements under microscopical examination, electromagnetic (eddy-current) test, hydrostatic test, and pneumatic test.
SCOPE
1.1 This specification establishes requirements for threadless, seamless, deoxidized copper pipe (TP) in straight lengths, in all nominal or standard pipe sizes, for piping systems that are assembled with brazed-joint pipe fittings. The pipe shall be produced from either of coppers UNS Nos. C10300 or C12200.  
1.2 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.  
1.3 The following safety hazard caveat pertains only to the test methods described in Section 16 of this specification.  
1.3.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to its use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Sep-2017
• ICS: 23.040.15 - Non-ferrous metal pipes
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.04 - Pipe and Tube

Relations

• Replaces: ASTM B302-12 - Standard Specification for Threadless Copper Pipe, Standard Sizes
• Effective Date: 01-Oct-2017
• Refers: ASTM E8/E8M-24 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 01-Jan-2024
• Refers: ASTM B950-23 - Standard Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
• Effective Date: 01-Oct-2023
• Refers: ASTM B846-19a - Standard Terminology for Copper and Copper Alloys
• Effective Date: 01-Aug-2019
• Refers: ASTM B577-19 - Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
• Effective Date: 01-Apr-2019
• Refers: ASTM B846-19 - Standard Terminology for Copper and Copper Alloys
• Effective Date: 01-Jan-2019
• Refers: ASTM B601-18a - Standard Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
• Effective Date: 01-Oct-2018
• Refers: ASTM E18-18 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 01-Jul-2018
• Refers: ASTM E243-18 - Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
• Effective Date: 01-Jun-2018
• Refers: ASTM B601-18 - Standard Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
• Effective Date: 01-Mar-2018
• Refers: ASTM B950-17 - Standard Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
• Effective Date: 01-Oct-2017
• Refers: ASTM E18-17 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 01-Jul-2017
• Refers: ASTM B601-16 - Standard Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
• Effective Date: 01-Oct-2016
• Refers: ASTM E8/E8M-16 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 15-Jul-2016
• Refers: ASTM B950-16 - Standard Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
• Effective Date: 01-Apr-2016

Overview

ASTM B302-17: Standard Specification for Threadless Copper Pipe, Standard Sizes outlines the requirements for threadless, seamless, and deoxidized copper pipe supplied in straight lengths and in all standard pipe sizes. The pipe is specifically intended for piping systems assembled using brazed-joint pipe fittings, providing a reliable solution for plumbing, HVAC, and industrial installations. This specification details the manufacturing, material, mechanical, and performance requirements to ensure the quality and suitability of the copper pipe for demanding applications. The standard applies to copper manufactured from UNS C10300 or C12200, known for their durability, corrosion resistance, and suitability for joining without threaded connections.

Key Topics

• Material and Composition: Specifies the use of copper in grades UNS C10300 (oxygen-free) and C12200 (phosphorus deoxidized), both selected for their high purity and robust properties.
• Manufacturing Process: Requires pipes to be produced through hot extrusion or piercing, followed by cold working to obtain a uniform, seamless, wrought structure.
• Dimensions and Tolerances: Covers all nominal sizes and includes specific requirements for outside and inside diameters, wall thickness, length, roundness, and squareness.
• Mechanical and Performance Testing:
  • Minimum tensile strength and Rockwell hardness values
  • Conformance to dimensional standards
  • Eddy-current nondestructive testing
  • Hydrostatic and pneumatic testing to ensure leak-tight integrity
• Temper: Pipes must be supplied in the H58 (drawn general purpose) temper, providing optimal installation performance.
• Inspection and Certification: Outlines procedures for sampling, testing, rejection, retesting, certification, and reporting to assure compliance.
• Marking and Identification: Requirements for product and package marking for traceability and ease of identification in the field.

Applications

Threadless copper pipes manufactured to ASTM B302-17 are widely used in applications where reliable, corrosion-resistant piping with clean, non-threaded ends is required. Key uses include:

• Plumbing Systems: Water supply and distribution lines, benefiting from the pipe’s seamless construction and ease of assembly with brazed fittings.
• HVAC Installations: Hot and cold water, refrigerant, and chilled water piping in heating, ventilation, and air conditioning systems.
• Industrial Process Piping: Chemical, gas, and process lines where contamination risks must be minimized and corrosion resistance is essential.
• Commercial and Institutional Buildings: Suitable for large-scale install projects needing high-purity copper and consistent performance standards.

The specification ensures compatibility with standard brazed-joint copper pipe fittings, enabling efficient and leak-tight connections without requiring threads, which are susceptible to leaks and mechanical weakening.

Related Standards

Several ASTM standards are commonly referenced alongside ASTM B302-17 to ensure comprehensive coverage of copper piping systems:

• ASTM B577 - Test Methods for Detection of Cuprous Oxide in Copper
• ASTM B601 - Classification for Temper Designations for Copper and Copper Alloys
• ASTM B846 - Terminology for Copper and Copper Alloys
• ASTM E8/E8M - Test Methods for Tension Testing of Metallic Materials
• ASTM E18 - Test Methods for Rockwell Hardness of Metallic Materials
• ASTM E243 - Practice for Electromagnetic (Eddy Current) Examination of Copper Tubes

Compliance with ASTM B302-17, and its related standards, ensures that threadless copper pipe meets rigorous industry criteria for safety, reliability, and performance in a wide range of critical piping applications.

Keywords: threadless copper pipe, ASTM B302-17, copper pipe standard, seamless copper pipe, brazed-joint fittings, C10300, C12200, plumbing, HVAC, industrial piping, pipe specification

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B302 −17
Standard Specification for
Threadless Copper Pipe, Standard Sizes
This standard is issued under the fixed designation B302; 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* B950 Guide for Editorial Procedures and Form of Product
Specifications for Copper and Copper Alloys
1.1 This specification establishes requirements for
E8/E8M Test Methods for Tension Testing of Metallic Ma-
threadless, seamless, deoxidized copper pipe (TP) in straight
terials
lengths, in all nominal or standard pipe sizes, for piping
E18 Test Methods for Rockwell Hardness of Metallic Ma-
systems that are assembled with brazed-joint pipe fittings. The
terials
pipe shall be produced from either of coppers UNS Nos.
E29 Practice for Using Significant Digits in Test Data to
C10300 or C12200.
Determine Conformance with Specifications
1.2 Units—The values stated in inch-pound units are to be
E53 Test Method for Determination of Copper in Unalloyed
regarded as standard. The values given in parentheses are
Copper by Gravimetry
mathematical conversions to SI units, which are provided for
E62 Test Methods for Chemical Analysis of Copper and
information only and are not considered standard.
CopperAlloys (Photometric Methods) (Withdrawn 2010)
1.3 The following safety hazard caveat pertains only to the E243 Practice for Electromagnetic (Eddy Current) Examina-
tion of Copper and Copper-Alloy Tubes
test methods described in Section 16 of this specification.
1.3.1 This standard does not purport to address all of the E255 Practice for Sampling Copper and Copper Alloys for
the Determination of Chemical Composition
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to its use.
3.1 For definitions of terms related to copper and copper
alloys, refer to Terminology B846.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4. Ordering Information
ization established in the Decision on Principles for the
4.1 Include the following specified choices when placing
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical orders for product under this specification, as applicable:
4.1.1 ASTM designation and year of issue,
Barriers to Trade (TBT) Committee.
4.1.2 Copper UNS No. designation,
2. Referenced Documents
4.1.3 Nominal or standard size (Table 1), and
4.1.4 Quantity—Total length, total weight, or number of
2.1 ASTM Standards:
pieces of each size.
B577 Test Methods for Detection of Cuprous Oxide (Hydro-
gen Embrittlement Susceptibility) in Copper
4.2 The following options are available, but may not be
B601 Classification forTemper Designations for Copper and
included unless specified at the time of placing of the order
Copper Alloys—Wrought and Cast
when required:
B846 Terminology for Copper and Copper Alloys
4.2.1 Tension test (Mechanical Property Requirements
Section),
4.2.2 Hydrostatic test (Other Requirements Section),
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.2.2.1 Test Pressure over 1000 psi (6.9 MPa),
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
and Tube.
4.2.3 Pneumatic test (Other Requirements Section),
Current edition approved Oct. 1, 2017. Published December 2017. Originally
4.2.4 Heatidentificationortraceabilityrequirements(5.1.1),
approved in 1955. Last previous edition approved in 2012 as B302 – 12. DOI:
4.2.5 Certification (Section 20),
10.1520/B0302-17.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
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
B302−17
TABLE 1 Dimensions and Weights and Tolerance in Diameter and Wall Thickness for Copper Threadless Pipe (TP) Sizes
Tolerances, in. (mm)
Cross-Sectional Theoretical
Nominal or Standard Outside Diameter, Inside Diameter, Wall Thickness, Average Outside
Area of Bore, Weight, lb/ft Wall Thickness
A
Pipe Size, in. in. (mm) in. (mm), in. (mm)
Diameter,
2 2
in. (cm ) (kg/m) Plus and Minus
All Minus
⁄4 0.540 (13.7) 0.410 (10.4) 0.065 (1.65) 0.132 (0.852) 0.376 (0.559) 0.004 (0.10) 0.0035 (0.089)
⁄8 0.675 (17.1) 0.545 (13.8) 0.065 (1.65) 0.233 (1.50) 0.483 (0.719) 0.004 (0.10) 0.004 (0.10)
⁄2 0.840 (21.3) 0.710 (18.0) 0.065 (1.65) 0.396 (2.55) 0.613 (0.912) 0.005 (0.13) 0.004 (0.10)
⁄4 1.050 (26.7) 0.920 (23.4) 0.065 (1.65) 0.665 (4.29) 0.780 (1.16) 0.005 (0.13) 0.004 (0.10)
1 1.315 (33.4) 1.185 (30.1) 0.065 (1.65) 1.10 (7.10) 0.989 (1.47) 0.005 (0.13) 0.004 (0.10)
1 ⁄4 1.660 (42.2) 1.530 (38.9) 0.065 (1.65) 1.84 (11.9) 1.26 (1.87) 0.006 (0.15) 0.004 (0.10)
1 ⁄2 1.900 (48.3) 1.770 (45.0) 0.065 (1.65) 2.46 (15.9) 1.45 (2.16) 0.006 (0.15) 0.004 (0.10)
2 2.375 (60.3) 2.245 (57.0) 0.065 (1.65) 3.96 (25.5) 1.83 (2.72) 0.007 (0.18) 0.006 (0.15)
2 ⁄2 2.875 (73.0) 2.745 (69.7) 0.065 (1.65) 5.92 (38.2) 2.22 (3.30) 0.007 (0.18) 0.006 (0.15)
3 3.500 (88.9) 3.334 (84.7) 0.083 (2.11) 8.73 (56.3) 3.45 (5.13) 0.008 (0.20) 0.007 (0.18)
3 ⁄2 4.000 (102) 3.810 (96.8) 0.095 (2.41) 11.4 (73.5) 4.52 (6.73) 0.008 (0.20) 0.007 (0.18)
4 4.500 (114) 4.286 (109) 0.107 (2.72) 14.4 (92.9) 5.72 (8.51) 0.010 (0.25) 0.009 (0.23)
5 5.562 (141) 5.298 (135) 0.132 (3.40) 22.0 (142) 8.73 (13.0) 0.012 (0.30) 0.010 (0.25)
6 6.625 (168) 6.309 (160) 0.158 (4.01) 31.3 (202) 12.4 (18.5) 0.014 (0.36) 0.010 (0.25)
8 8.625 (219) 8.215 (209) 0.205 (5.21) 53.0 (342) 21.0 (31.2) 0.018 (0.46) 0.014 (0.36)
10 10.750 (273) 10.238 (260) 0.256 (6.50) 82.3 (531) 32.7 (48.7) 0.018 (0.46) 0.016 (0.41)
12 12.750 (324) 12.124 (308) 0.313 (7.95) 115 (742) 47.4 (70.5) 0.018 (0.46) 0.020 (0.51)
A
The average outside diameter of a tube is the average of the maximum and minimum outside diameters, as determined at any one cross section of the tube.
4.2.6 Test report (Section 21). 6.2 These composition limits do not preclude the presence
4.2.7 Source inspection requirement (18.2), and of other elements. By agreement between the manufacture and
4.2.8 When the specification number must be shown on the purchaser, limits may be established and analysis required for
shipping unit (Section 22). unnamed elements.
5. Materials and Manufacture 7. Temper
5.1 Material—The material of manufacture shall be cast
7.1 The product shall be furnished in the H58 (drawn
billets, bars, or tubes of copper UNS No. C10300 or C12200 of general purpose) temper as defined in Classification B601.
such purity and soundness as to be suitable for processing into
8. Mechanical Property Requirements
finished lengths of pipe to meet the properties prescribed
herein.
8.1 Tensile Strength Requirement:
5.1.1 When specified in the contract or purchase order, that
8.1.1 Product in all sizes and coppers shall have a minimum
heat identification or traceability is required, the purchaser
tensile strength of 36 ksi (250 MPa) when tested in accordance
shall specify the details desired.
with Test Methods E8/E8M.
8.1.2 The tension test need not be performed except when
NOTE 1—Due to the discontinuous nature of the processing of castings
intowroughtproducts,itisnotalwayspracticaltoidentifyspecificcasting specified by the purchaser in the ordering information at the
analysis with a specific quantity of finished product.
time of placing of the order.
5.2 Manufacture:
8.2 Rockwell Hardness Requirement—Product in all sizes
5.2.1 The pipe shall be manufactured by such hot extrusion
and coppers shall have a minimum Rockwell F hardness of 55
or piercing and subsequent cold working as to produce a
when tested in accordance with Test Methods E18.
uniform, seamless wrought structure in the finished product.
5.2.2 The product shall be cold worked to the finished size 9. Performance Requirements
so as to meet the temper properties specified.
9.1 Microscopical Examination—The pipe shall be made
from copper free from cuprous oxide, as determined by
6. Chemical Composition
microscopical examination at a magnification of 75 diameters
6.1 The material shall conform to the chemical composition
according to Test Method A of Test Methods B577. When
requirements in Table 2 for the copper UNS No. designation
copper UNS No. C12200 is supplied, microscopical examina-
specified in the ordering information.
tion for cuprous oxide is not required.
10. Other Requirements – Nondestructive Test
TABLE 2 Chemical Requirements
Requirements
Composition, %
Copper UNS No.
Copper (Incl Silver), min Phosphorus
10.1 Electromagnetic (Eddy-Current) Test:
A
C10300 99.95 0.001 to 0.005
10.1.1 Each tube up to and including 2 ⁄2-in. nominal pipe
C12200 99.9 0.015 to 0.040
A size shall be subjected to an eddy-current test. Testing shall
Copper + silver + phosphorus.
follow the procedures of Practice E243 and 16.2.3.
B302−17
TABLE 3 Roundness Tolerances
10.1.1.1 Hydrostatic Test Alternative—As an alternative to
A
the eddy-current test for tubes of diameters above 1.25 in. Diameter Roundness Tolerances,
t /D, Ratio of Wall Thickness to Outside
% of Outside Diameter
(32 mm), the manufacturer shall perform the hydrostatic test to
(Expressed to the Nearest
Diameter
0.001 in. (Nearest 0.01 mm))
the requirements of 10.2.
0.01 to 0.03, incl 1.5
10.1.1.2 The provisions for the determination of “end-
Over 0.03 to 0.05, incl 1.0
effect” in Practice E243 shall not apply. Over 0.05 to 0.10, incl 0.8
Over 0.10 0.7
10.1.2 The tested tubes, which do not actuate the signaling
A
The deviation from roundness is measured as the difference between major and
device of the testing unit, shall be considered as conforming to
minor outside diameters as determined at any one cross section of the tube.
the requirements of the test.
10.1.3 Either notch depth or drilled hole standards shall be
used.
10.1.3.1 Notchdepthstandardsshallbe10 %ofthenominal
(305-mm) size, which shall be 15 ft (4.57 m). The length
wall thickness.
tolerances shall be plus 1 in. (25 mm), minus 0.
10.1.3.2 The sizes of drilled hole standards shall be deter-
11.6 Squareness of Cut—The departure from squareness of
mined in accordance with Table X1.2 of Practice E243.
the end of any pipe shall not exceed the following:
10.2 Hydrostatic Test:
Outside Diameter,
10.2.1 When specified in the contract or purchase order, or
in. (mm) Tolerance
as an alternative to the eddy-current test for tubes above
Up to ⁄8 (15.9) incl 0.010 in. (0.25 mm)
1.25 in. (32 mm) in diameter (see 10.1.1.2), each tube shall
Over ⁄8 (15.9) 0.016 in./in. (0.016 mm/mm) of diameter
stand, without showing evidence of leakage, an internal hydro-
static pressure sufficient to produce a fiber stress of 6000 psi
12. Workmanship, Finish, and Appearance
(41 MPa) as determined by the following equation for thin
12.1 The product shall be free of defects, but blemishes of
hollow cylinders under tension:
a nature that do not interfere with the intended application are
P 5 2St/ D 2 0.8t (1)
~ !
acceptable.
where:
13. Sampling
P = hydrostatic pressure, psi (MPa);
t = wall thickness of the material, in. (mm);
13.1 The lot size, portion size, and sample size of the
D = outside diameter of the material, in. (mm); and
finished product shall be as follows:
S = allowable stress of the material, psi (MPa).
13.1.1 Lot Size—An inspection lot shall be 5000 lbs
(2270 kg) or fraction thereof, subject to inspection at one time.
10.2.1.1 The tube need not be subjected to a pressure gage
13.1.2 Portion Size—A portion shall be taken to represent
reading over 1000 psi (6.9 MPa) except when specified in the
an inspection lot according to the following schedule:
contract or purchase order.
Number of Pieces
A
10.3 Pneumatic Test—When specified in the contract or Number of Samples to be Taken
in Lot
purchase order, each tube shall be subjected to a minimum
1to50 1
internal air pressure of 60 psig (415 kPa) for 5 s without
51 to 200 2
showing evidence of leakage.
201 to 1500 3
Over 1500 0.2 % of the total number of pieces in the lot, but
not to exceed ten pieces.
11. Dimensions, Mass, and Permissible Variations
A
11.1 General—The standard method of specifying wall
Each test portion shall be t
...

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: B302 − 12 B302 − 17
Standard Specification for
Threadless Copper Pipe, Standard Sizes
This standard is issued under the fixed designation B302; 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 requirements for threadless, seamless, deoxidized copper pipe (TP) in straight lengths, in all
nominal or standard pipe sizes, for piping systems that are assembled with brazed-joint pipe fittings. The pipe shall be produced
from either of coppers UNS Nos. C10300 or C12200.
1.2 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.
1.3 The following safety hazard caveat pertains only to the test methods described Section 16 of this specification:This standard
does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to its
use.
1.3 The following safety hazard caveat pertains only to the test methods described in Section 16 of this specification.
1.3.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to its use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
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
B950 Guide for Editorial Procedures and Form of Product Specifications 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
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
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
3. Terminology
3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
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 April 1, 2012Oct. 1, 2017. Published May 2012December 2017. Originally approved in 1955. Last previous edition approved in 20072012 as
B302 – 07.B302 – 12. DOI: 10.1520/B0302-12.10.1520/B0302-17.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
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
B302 − 17
4. Ordering Information
4.1 Include the following 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 No. designation,
4.1.3 Nominal or standard size (Table 1), and
4.1.4 Quantity—Total length, total weight, or number of pieces of each size.
4.2 The following options are available, but may not be included unless specified at the time of placing of the order when
required:
4.2.1 Tension test (Mechanical Property Requirements Section),
4.2.2 Hydrostatic test (Other Requirements Section),
4.2.2.1 Test Pressure over 1000 psi (6.9 MPa),
4.2.3 Pneumatic test (Other Requirements Section),
4.2.4 Heat identification or traceability requirements (5.1.1),
4.2.5 Certification (Section 20),
4.2.6 Mill test Test report (Section 21).
4.2.7 Source inspection requirement (18.2), and
4.2.8 When the specification number must be shown on the shipping unit (Section 22).
5. Materials and Manufacture
5.1 Material—The material of manufacture shall be cast billets, bars, or tubes of copper UNS No. C10300 or C12200 of such
purity and soundness as to be suitable for processing into finished lengths of pipe to meet the properties prescribed herein.
TABLE 1 Dimensions and Weights and Tolerance in Diameter and Wall Thickness for Copper Threadless Pipe (TP) Sizes
Tolerances, in. (mm)
Cross-Sectional Theoretical
Nominal or Standard Outside Diameter, Inside Diameter, Wall Thickness,
Average Outside
Area of Bore, Weight, lb/ft Wall Thickness
A
Pipe Size, in. in. (mm) in. (mm), in. (mm)
2 2 Diameter,
in. (cm ) (kg/m) Plus and Minus
All Minus
⁄4 0.540 (13.7) 0.410 (10.4) 0.065 (1.65) 0.132 (0.852) 0.376 (0.559) 0.004 (0.10) 0.0035 (0.089)
⁄4 0.540 (13.7) 0.410 (10.4) 0.065 (1.65) 0.132 (0.852) 0.376 (0.559) 0.004 (0.10) 0.0035 (0.089)
⁄8 0.675 (17.1) 0.545 (13.8) 0.065 (1.65) 0.233 (1.50) 0.483 (0.719) 0.004 (0.10) 0.004 (0.10)
⁄8 0.675 (17.1) 0.545 (13.8) 0.065 (1.65) 0.233 (1.50) 0.483 (0.719) 0.004 (0.10) 0.004 (0.10)
⁄2 0.840 (21.3) 0.710 (18.0) 0.065 (1.65) 0.396 (2.55) 0.613 (0.912) 0.005 (0.13) 0.004 (0.10)
⁄2 0.840 (21.3) 0.710 (18.0) 0.065 (1.65) 0.396 (2.55) 0.613 (0.912) 0.005 (0.13) 0.004 (0.10)
⁄4 1.050 (26.7) 0.920 (23.4) 0.065 (1.65) 0.665 (4.29) 0.780 (1.16) 0.005 (0.13) 0.004 (0.10)
⁄4 1.050 (26.7) 0.920 (23.4) 0.065 (1.65) 0.665 (4.29) 0.780 (1.16) 0.005 (0.13) 0.004 (0.10)
1 1.315 (33.4) 1.185 (30.1) 0.065 (1.65) 1.10 (7.10) 0.989 (1.47) 0.005 (0.13) 0.004 (0.10)
1 1.315 (33.4) 1.185 (30.1) 0.065 (1.65) 1.10 (7.10) 0.989 (1.47) 0.005 (0.13) 0.004 (0.10)
1 ⁄4 1.660 (42.2) 1.530 (38.9) 0.065 (1.65) 1.84 (11.9) 1.26 (1.87) 0.006 (0.15) 0.004 (0.10)
1 ⁄4 1.660 (42.2) 1.530 (38.9) 0.065 (1.65) 1.84 (11.9) 1.26 (1.87) 0.006 (0.15) 0.004 (0.10)
1 ⁄2 1.900 (48.3) 1.770 (45.0) 0.065 (1.65) 2.46 (15.9) 1.45 (2.16) 0.006 (0.15) 0.004 (0.10)
1 ⁄2 1.900 (48.3) 1.770 (45.0) 0.065 (1.65) 2.46 (15.9) 1.45 (2.16) 0.006 (0.15) 0.004 (0.10)
2 2.375 (60.3) 2.245 (57.0) 0.065 (1.65) 3.96 (25.5) 1.83 (2.72) 0.007 (0.18) 0.006 (0.15)
2 2.375 (60.3) 2.245 (57.0) 0.065 (1.65) 3.96 (25.5) 1.83 (2.72) 0.007 (0.18) 0.006 (0.15)
2 ⁄2 2.875 (73.0) 2.745 (69.7) 0.065 (1.65) 5.92 (38.2) 2.22 (3.30) 0.007 (0.18) 0.006 (0.15)
2 ⁄2 2.875 (73.0) 2.745 (69.7) 0.065 (1.65) 5.92 (38.2) 2.22 (3.30) 0.007 (0.18) 0.006 (0.15)
3 3.500 (88.9) 3.334 (84.7) 0.083 (2.11) 8.73 (56.3) 3.45 (5.13) 0.008 (0.20) 0.007 (0.18)
3 3.500 (88.9) 3.334 (84.7) 0.083 (2.11) 8.73 (56.3) 3.45 (5.13) 0.008 (0.20) 0.007 (0.18)
3 ⁄2 4.000 (102) 3.810 (96.8) 0.095 (2.41) 11.4 (73.5) 4.52 (6.73) 0.008 (0.20) 0.007 (0.18)
3 ⁄2 4.000 (102) 3.810 (96.8) 0.095 (2.41) 11.4 (73.5) 4.52 (6.73) 0.008 (0.20) 0.007 (0.18)
4 4.500 (114) 4.286 (109) 0.107 (2.72) 14.4 (92.9) 5.72 (8.51) 0.010 (0.25) 0.009 (0.23)
4 4.500 (114) 4.286 (109) 0.107 (2.72) 14.4 (92.9) 5.72 (8.51) 0.010 (0.25) 0.009 (0.23)
5 5.562 (141) 5.298 (135) 0.132 (3.40) 22.0 (142) 8.73 (13.0) 0.012 (0.30) 0.010 (0.25)
5 5.562 (141) 5.298 (135) 0.132 (3.40) 22.0 (142) 8.73 (13.0) 0.012 (0.30) 0.010 (0.25)
6 6.625 (168) 6.309 (160) 0.158 (4.01) 31.3 (202) 12.4 (18.5) 0.014 (0.36) 0.010 (0.25)
6 6.625 (168) 6.309 (160) 0.158 (4.01) 31.3 (202) 12.4 (18.5) 0.014 (0.36) 0.010 (0.25)
8 8.625 (219) 8.215 (209) 0.205 (5.21) 53.0 (342) 21.0 (31.2) 0.018 (0.46) 0.014 (0.36)
8 8.625 (219) 8.215 (209) 0.205 (5.21) 53.0 (342) 21.0 (31.2) 0.018 (0.46) 0.014 (0.36)
10 10.750 (273) 10.238 (260) 0.256 (6.50) 82.3 (531) 32.7 (48.7) 0.018 (0.46) 0.016 (0.41)
10 10.750 (273) 10.238 (260) 0.256 (6.50) 82.3 (531) 32.7 (48.7) 0.018 (0.46) 0.016 (0.41)
12 12.750 (324) 12.124 (308) 0.313 (7.95) 115 (742) 47.4 (70.5) 0.018 (0.46) 0.020 (0.51)
12 12.750 (324) 12.124 (308) 0.313 (7.95) 115 (742) 47.4 (70.5) 0.018 (0.46) 0.020 (0.51)
A
The average outside diameter of a tube is the average of the maximum and minimum outside diameters, as determined at any one cross section of the tube.
B302 − 17
5.1.1 When specified in the contract or purchase order, that heat identification or traceability is required, the purchaser shall
specify the details desired.
NOTE 1—Due to the discontinuous nature of the processing of castings into wrought products, it is not always practical to identify specific casting
analysis with a specific quantity of finished product.
5.2 Manufacture:
5.2.1 The pipe shall be manufactured by such hot extrusion or piercing and subsequent cold working as to produce a uniform,
seamless wrought structure in the finished product.
5.2.2 The product shall be cold worked to the finished size so as to meet the temper properties specified.
6. Chemical Composition
6.1 The material shall conform to the chemical composition requirements in Table 2 for the copper UNS No. designation
specified in the ordering information.
6.2 These composition limits do not preclude the presence of other elements. By agreement between the manufacture and
purchaser, limits may be established and analysis required for unnamed elements.
7. Temper
7.1 The product shall be furnished in the H58 (drawn general purpose) temper as defined in Classification B601.
8. Mechanical Property Requirements
8.1 Tensile Strength Requirement:
8.1.1 Product in all sizes and coppers shall have a minimum tensile strength of 36 ksi (250 MPa) when tested in accordance
with Test Methods E8E8/E8M.
8.1.2 The tension test need not be performed except when specified by the purchaser in the ordering information at the time of
placing of the order.
8.2 Rockwell Hardness Requirement—Product in all sizes and coppers shall have a minimum Rockwell F hardness of 55 when
tested in accordance with Test Methods E18.
9. Performance Requirements
9.1 Microscopical Examination—The pipe shall be made from copper free from cuprous oxide, as determined by microscopical
examination at a magnification of 75 diameters according to Test Method A of Test Methods B577. When copper UNS No. C12200
is supplied, microscopical examination for cuprous oxide is not required.
10. Other Requirements – Nondestructive Test Requirements
10.1 Electromagnetic (Eddy-Current) Test:
10.1.1 Each tube up to and including 2 ⁄2-in. nominal pipe size shall be subjected to an eddy-current test. Testing shall follow
the procedures of Practice E243 and 16.2.3.
10.1.1.1 Hydrostatic Test Alternative—As an alternative to the eddy-current test for tubes of diameters above 1.25 in. (32 mm),
(32 mm), the manufacturer shall perform the hydrostatic test to the requirements of 10.2.
10.1.1.2 The provisions for the determination of “end-effect” in Practice E243 shall not apply.
10.1.2 The tested tubes, which do not actuate the signaling device of the testing unit, shall be considered as conforming to the
requirements of the test.
10.1.3 Either notch depth or drilled hole standards shall be used.
10.1.3.1 Notch depth standards shall be 10 % of the nominal wall thickness.
10.1.3.2 The sizes of drilled hole standards shall be determined in accordance with Table X1.2 of Practice E243.
10.2 Hydrostatic Test:
10.2.1 When specified in the contract or purchase order, or as an alternative to the eddy-current test for tubes above 1.25 in.
1.25 in. (32 mm) in diameter (see 10.1.1.2), each tube shall stand, without showing evidence of leakage, an internal hydrostatic
pressure sufficient to produce a fiber stress of 6000 psi (41 MPa) (41 MPa) as determined by the following equation for thin hollow
cylinders under tension:
TABLE 2 Chemical Requirements
Composition, %
Copper UNS No.
Copper (Incl Silver), min Phosphorus
A
C10300 99.95 0.001 to 0.005
C12200 99.9 0.015 to 0.040
A
Copper + silver + phosphorus.
B302 − 17
P 5 2St/ D 2 0.8t (1)
~ !
where:
P = hydrostatic pressure, psi (MPa);
t = wall thickness of the material, in. (mm);
D = outside diameter of the material, in. (mm); and
S = allowable stress of the material, psi (MPa).
10.2.1.1 The tube need not be subjected to a pressure gage reading over 1000 psi (6.9 MPa) except when specified in the
contract or purchase order.
10.3 Pneumatic Test—When specified in the contract or purchase order, each tube shall be subjected to a minimum internal air
pressure of 60 psig (415 kPa) for 5 s without showing evidence of leakage.
11. Dimensions, Mass, and Permissible Variations
11.1 General—The standard method of specifying wall thickness shall be in decimal fractions of an inch. For the purpose of
determining conformance with the dimensional requirements prescribed in this specification, any measured value outside the
specified limiting values for any dimension shall be cause for rejection.
11.2 Dimensions and Weights—Dimensions and weights for the various nominal or standard sizes, together with tolerances in
diameter and wall thickness, shall be in accordance with Table 1.
11.3 Wall Thickness and Diameter Tolerances—Wall thickness and diameter tolerances shall be in accordance with Table 1.
11.4 Roundness Toler
...