ASTM B643-12(2016)

Standard Specification for Copper-Beryllium Alloy Seamless Tube

ABSTRACT
This specification establishes requirements for copper-beryllium alloy seamless tube in straight lengths. The material of manufacture shall be Copper Alloy UNS C17200, cast and worked into tubular form that shall have heat traceable identity. The product shall be manufactured by a combination of hot and cold working, annealing, or precipitation heat treatment, or both, as to produce a uniform wrought structure in the finished product, to meet the temper specified (TB00 (A), TD04 (H), TF00 (AT), or TH04 (HT)). The material shall conform to the chemical composition requirements prescribed for beryllium, copper, aluminum, silicon, and additive elements such as nickel, cobalt, and iron, as determined by chemical analysis. The alloy shall also conform to the specified physical property requirements such as microstructure and grain size, and to the prescribed dimensional and mass requirements. The material shall meet the requirements specified for mechanical properties before and after precipitation heat treatment, such as Rockwell hardness, tensile strength, yield strength, and elongation. Requirements for tension test and other tests to be used to determine the properties mentioned including sampling and specimen preparation are detailed.
SCOPE
1.1 This specification establishes requirements for copper-beryllium alloy seamless tube in straight lengths. Copper Alloy UNS C17200 will be the alloy furnished whenever Specification B643 is specified.  
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 that 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 this specification.  
1.4 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 use.

General Information

• Status: Historical
• Publication Date: 30-Sep-2016
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.04 - Pipe and Tube

Relations

• Replaces: ASTM B643-12 - Standard Specification for Copper-Beryllium Alloy Seamless Tube
• Effective Date: 01-Oct-2016
• Replaced By: ASTM B643-18 - Standard Specification for Copper-Beryllium Alloy Seamless Tube
• Effective Date: 01-Mar-2018
• Referred By: ASTM B251/B251M-17 - Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube
• Effective Date: 01-Oct-2016

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:B643 −12 (Reapproved 2016)
Standard Specification for
Copper-Beryllium Alloy Seamless Tube
This standard is issued under the fixed designation B643; 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* E18 Test Methods for Rockwell Hardness of Metallic Ma-
terials
1.1 This specification establishes requirements for copper-
E29 Practice for Using Significant Digits in Test Data to
beryllium alloy seamless tube in straight lengths. CopperAlloy
Determine Conformance with Specifications
UNS C17200 will be the alloy furnished whenever Specifica-
E112 Test Methods for Determining Average Grain Size
tion B643 is specified.
E255 Practice for Sampling Copper and Copper Alloys for
1.2 Units—The values stated in inch-pound units are to be
the Determination of Chemical Composition
regarded as standard. The values given in parentheses are
E527 Practice for Numbering Metals and Alloys in the
mathematical conversions to SI units that are provided for
Unified Numbering System (UNS)
information only and are not considered standard.
3. Terminology
1.3 The following safety hazard caveat pertains only to the
test methods described in this specification.
3.1 Definitions—For terms relating to copper and copper
alloys, refer to Terminology B846.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2 Definitions of Terms Specific to This Standard:
responsibility of the user of this standard to establish appro-
3.2.1 stock, n—straight lengths that are mill cut and stored
priate safety and health practices and determine the applica-
in advance of orders. They are usually 8, 10, 12, or 20 ft (2.44,
bility of regulatory limitations prior to use.
3.05, 3.66, or 6.10 m) and subject to established length
tolerances.
2. Referenced Documents
2.1 The following documents of the issue in effect on date
4. General Requirements
of material purchase form a part of this specification to the
4.1 The following sections of Specification B251 constitute
extent referenced herein:
a part of this specification:
2.2 ASTM Standards:
4.1.1 Workmanship, Finish and Appearance,
B194 Specification for Copper-BerylliumAlloy Plate, Sheet,
4.1.2 Significance of Numerical limits,
Strip, and Rolled Bar
4.1.3 Inspection,
B251 Specification for General Requirements for Wrought
4.1.4 Rejection and Rehearing,
Seamless Copper and Copper-Alloy Tube
4.1.5 Certification,
B601 Classification forTemper Designations for Copper and
4.1.6 Mill Test Report, and
Copper Alloys—Wrought and Cast
4.1.7 Packaging and Package Marking.
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens 5. Ordering Information
E8/E8M Test Methods for Tension Testing of Metallic Ma-
5.1 Include the following information when placing orders
terials
for product under this specification, as applicable:
5.1.1 ASTM designation and year of issue,
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
5.1.2 Copper (Alloy) UNS No. designation (see 1.1),
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
5.1.3 Temper (see Section 8),
and Tube.
5.1.4 Dimensions, specify O.D./I.D., O.D./wall, or I.D./wall
Current edition approved Oct. 1, 2016. Published October 2016. Originally
and include length if applicable,
approved in 1978. Last previous edition approved in 2012 as B643 – 12. DOI:
10.1520/B0643-12R16.
5.1.5 How furnished, stock lengths with or without ends,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
specific lengths with or without ends,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.1.6 Quantity: total weight or number or pieces,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 5.1.7 Special tests or exceptions, if any,
*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
B643−12 (2016)
5.1.8 Hardness tests, if required, 8.1.4 Hard and Precipitation Heat Treated TH04 (HT).
5.1.9 Special tests such as tension test or grain size, if
8.2 Tempers available under this specification are defined in
required,
Classification B601.
5.1.10 Special marking or packaging, if required,
5.1.11 Inspection, if required (see Specification B251),
9. Precipitation Heat Treatment
5.1.12 Certification, if required (see Specification B251),
9.1 When material is purchased in the TB00(A) or the
and
TD04(H) tempers, the precipitation heat treatment is per-
5.1.13 Mill test report, if required (see Specification B251).
formed by the purchaser.
5.2 If the product is purchased for agencies of the U.S.
9.2 When testing for conformance to the TF00(AT) and the
Government (see Supplementary Requirements section of
TH04(HT) property requirements shown in Table 3 for prod-
Specification B251, for additional requirements, if specified).
ucts supplied in the TB00(A) and TD04(H) tempers, the
appropriate test specimens shall be heat treated for times and
6. Materials and Manufacture
temperatures within those stated in Table 4. The times and
6.1 Material:
temperatures used by the manufacturer to qualify the material
6.1.1 The material of manufacture shall be billets, cast bars
will be stated on the mill test report.The use of other times and
or tube of Copper Alloy UNS No. C17200, of such purity and
temperatures, within the allowable ranges, shown in Table 4,
soundness as to be suitable for processing into the products
may produce properties other than those stated on the mill test
prescribed herein.
report. This will not be cause for rejection.
6.1.2 The tube shall have heat traceable identity.
9.3 This material may be heat-treated at other times and
6.2 Manufacture:
temperature for specific applications. These special combina-
6.2.1 The product shall be manufactured by such hot
tions of properties, such as increased ductility, dimensional
working, cold working, annealing, or precipitation heat
accuracy, endurance life, may be obtained by special
treatment, or both, as to produce a uniform wrought structure
precipitation-hardening heat treatments. The mechanical re-
in the finished product.
quirements of Table 3 do not apply to such special heat
treatments.Specifictestrequirementsasneededshallbeagreed
7. Chemical Composition
upon between the manufacturer, or supplier, and the purchaser
7.1 Thematerialshallconformtothechemicalrequirements
of the end product.
in Table 1 for the copper alloy UNS No. C17200 specified in
9.4 TF00 (AT) and TH04 (HT) tempers are standard mill-
this ordering information.
hardenedproductsthathavebeenprecipitationheat-treatedand
7.2 These composition limits do not preclude the presence
tested by the manufacturer. An appropriate time and tempera-
ofotherelements.Byagreementbetweenthemanufacturerand
ture has been used to produce properties within the specifica-
purchaser, limits may be established and analysis required for
tion limits shown in Table 3. Table 4 does not apply. Further,
unnamed elements.
thermal treatments of these tempers is not normally required.
7.3 For alloys in which copper is listed as “remainder,”
copper is the difference between the sum of results of all
10. Physical Property Requirements
elements determined and 100 %. When all elements in Table 1
10.1 Microstructure and Grain Size
are determined, the sum of the results shall be 99.5 % mini-
10.1.1 The product in the precipitation heat-treated condi-
mum.
tion shall have a microstructure with a minimum of second
phase (beta) constituents.
8. Temper
10.1.2 Grain size, if required, shall be agreed upon between
8.1 The standard tempers for products described in this
the purchaser and the manufacturer or the supplier and shall be
specification are given in Table 2 and Table 3.
determined in accordance with Test Methods E112.
8.1.1 Solution heat-treated TB00 (A).
8.1.2 Heat Treated and Cold Worked to hard temper TD04
11. Mechanical Property Requirements
(H).
11.1 Rockwell Hardness Requirement:
8.1.3 Precipitation Hardened TF00 (AT).
11.1.1 Product furnished under this specification shall con-
form to the Rockwell hardness requirements in Table 2 and
TABLE 1 Chemical Requirements Table 3, when tested in accordance with Test Methods E18.
11.1.2 Acceptance or rejection based on mechanical prop-
Composition, %
Element
erties shall depend only on Rockwell hardness.
Copper Alloy UNS No. C17200
11.1.3 Where agreement on Rockwell hardness tests cannot
Beryllium 1.80–2.00
Additive elements:
be reached, the tensile strength requirements of Table 2 and
Nickel + cobalt, min 0.20
Table 3 shall be the basis for acceptance or rejection.
Nickel + cobalt + iron, max 0.6
Aluminum, max 0.20
11.2 Tension Strength Requirements:
Silicon, max 0.20
11.2.1 When specified in the contract or purchase order,
Copper remainder
product furnished under this specification shall conform to the
B643−12 (2016)
TABLE 2 Mechanical Property Requirements Before Precipitation Heat Treatment
A C
Temper Designation Diameter Distance Between Tensile Strength
Rockwell
B
Cross-Sectional
Hardness,
D
Standard Former ksi (MPa)
B Scale
Parallel Surfaces, in. (mm)
TB00 Solution-heat treated (A) ⁄4 (19.1) and over 45–85 60–85 (410–570)
TD04 Hard (H) ⁄4 (19.1) and over 88–103 85–115 (590–800)
A
Standard designations defined in Classification B601.
B
Hardness values shown apply only to direct determinations, not converted values.
C
Hardness is the normal commercial acceptance criterion. Mechanical properties apply only when specifically required.
D
ksi = 1000 psi.
A
TABLE 3 Tensile Strength and Hardness Requirements After Precipitation Heat Treatment
B
Temper Designation Yield Strength (min) (0.2 %
Diameter or Distance Rockwell C
Tensile Strength
Elongation
Offset)
Between Cross-Sectional Hardness, C,
(min) in 4 × D
D
Parallel Surfaces, in. (mm) min
Standard Former ksi (MPa) ksi (MPa)
E
TF00 AT ⁄8 (15.9) and over 36 165–190 (1140–1310) 130 (900) 3 %
E
TH04 HT ⁄8 (15.9) to 1 (25.4) incl 38 180–215 (1240–1480) 155 (1070) 4 %
E
Over 1 (25.4) to 2 (50.8) incl 37 175–215 (1210–1480) 150 (1040) 4 %
E
Over 2 (50.8) to 3 ⁄2 (88.9) 37 175–215 (1210–1480) 140 (970) 4 %
incl
A
These values apply to mill products. See 9.3 for exceptions in end products.
B
Standard designations defined in Classification B601.
C
Hardness is the normal commercial acceptance criterion. Mechanical properties apply only when specifically r
...

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: B643 − 12 B643 − 12 (Reapproved 2016)
Standard Specification for
Copper-Beryllium Alloy Seamless Tube
This standard is issued under the fixed designation B643; 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 copper-beryllium alloy seamless tube in straight lengths. Copper Alloy UNS
C17200 will be the alloy furnished whenever Specification B643 is specified.
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 that 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 this specification.
1.4 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 use.
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 ASTM Standards:
B194 Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar
B251 Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
E8/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
E112 Test Methods for Determining Average Grain Size
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 Definitions—For terms relating to copper and copper alloys, refer to Terminology B846.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 stock, n—straight lengths that are mill cut and stored in advance of orders. They are usually 8, 10, 12, or 20 ft (2.44, 3.05,
3.66, or 6.10 m) and subject to established length tolerances.
4. General Requirements
4.1 The following sections of Specification B251 constitute a part of this specification:
4.1.1 Workmanship, Finish and Appearance,
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, 2016. Published May 2012October 2016. Originally approved in 1978. Last previous edition approved in 20052012 as
B643 – 00 (2005).B643 – 12. DOI: 10.1520/B0643-12.10.1520/B0643-12R16.
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 ASTM website.
*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
B643 − 12 (2016)
4.1.2 Significance of Numerical limits,
4.1.3 Inspection,
4.1.4 Rejection and Rehearing,
4.1.5 Certification,
4.1.6 Mill Test Report, and
4.1.7 Packaging and Package Marking.
5. Ordering Information
5.1 Include the following information when placing orders for product under this specification, as applicable:
5.1.1 ASTM designation and year of issue,
5.1.2 Copper (Alloy) UNS No. designation (see 1.1),
5.1.3 Temper (see Section 8),
5.1.4 Dimensions, specify O.D./I.D., O.D./wall, or I.D./wall and include length if applicable,
5.1.5 How furnished, stock lengths with or without ends, specific lengths with or without ends,
5.1.6 Quantity: total weight or number or pieces,
5.1.7 Special tests or exceptions, if any,
5.1.8 Hardness tests, if required,
5.1.9 Special tests such as tension test or grain size, if required,
5.1.10 Special marking or packaging, if required,
5.1.11 Inspection, if required (see Specification B251),
5.1.12 Certification, if required (see Specification B251), and
5.1.13 Mill test report, if required (see Specification B251).
5.2 If the product is purchased for agencies of the U. S. U.S. Government (see Supplementary Requirements section of
Specification B251, for additional requirements, if specified).
6. Materials and Manufacture
6.1 Material:
6.1.1 The material of manufacture shall be billets, cast bars or tube of Copper Alloy UNS No. C17200, of such purity and
soundness as to be suitable for processing into the products prescribed herein.
6.1.2 The tube shall have heat traceable identity.
6.2 Manufacture:
6.2.1 The product shall be manufactured by such hot working, cold working, annealing, or precipitation heat treatment, or both,
as to produce a uniform wrought structure in the finished product.
7. Chemical Composition
7.1 The material shall conform to the chemical requirements in Table 1 for the copper alloy UNS No. C17200 specified in this
ordering information.
7.2 These composition limits do not preclude the presence of other elements. By agreement between the manufacturer and
purchaser, limits may be established and analysis required for unnamed elements.
7.3 For alloys in which copper is listed as “remainder,” copper is the difference between the sum of results of all elements
determined and 100 %. When all elements in Table 1 are determined, the sum of the results shall be 99.5 % minimum.
8. Temper
8.1 The standard tempers for products described in this specification are given in Table 2 and Table 3.
8.1.1 Solution heat-treated TB00 (A).
8.1.2 Heat Treated and Cold Worked to hard temper TD04 (H).
TABLE 1 Chemical Requirements
Composition, %
Element
Copper Alloy UNS No. C17200
Beryllium 1.80–2.00
Additive elements:
Nickel + cobalt, min 0.20
Nickel + cobalt + iron, max 0.6
Aluminum, max 0.20
Silicon, max 0.20
Copper remainder
B643 − 12 (2016)
TABLE 2 Mechanical Property Requirements Before Precipitation Heat Treatment
A C
Temper Designation Diameter Distance Between Tensile Strength
Rockwell
B
Cross-Sectional
Hardness,
D
Standard Former ksi (MPa)
B Scale
Parallel Surfaces, in. (mm)
TB00 Solution-heat treated (A) ⁄4 (19.1) and over 45–85 60–85 (410–570)
TD04 Hard (H) ⁄4 (19.1) and over 88–103 85–115 (590–800)
A
Standard designations defined in Classification B601.
B
Hardness values shown apply only to direct determinations, not converted values.
C
Hardness is the normal commercial acceptance criterion. Mechanical properties apply only when specifically required.
D
ksi = 1000 psi.
A
TABLE 3 Tensile Strength and Hardness Requirements After Precipitation Heat Treatment
B
Temper Designation Yield Strength (min) (0.2 %
Diameter or Distance Rockwell C
Tensile Strength
Elongation
Offset)
Between Cross-Sectional Hardness, C,
(min) in 4 × D
D
Parallel Surfaces, in. (mm) min
Standard Former ksi (MPa) ksi (MPa)
E
TF00 AT ⁄8 (15.9) and over 36 165–190 (1140–1310) 130 (900) 3 %
E
TH04 HT ⁄8 (15.9) to 1 (25.4) incl 38 180–215 (1240–1480) 155 (1070) 4 %
E
Over 1 (25.4) to 2 (50.8) incl 37 175–215 (1210–1480) 150 (1040) 4 %
E
Over 2 (50.8) to 3 ⁄2 (88.9) 37 175–215 (1210–1480) 140 (970) 4 %
incl
A
These values apply to mill products. See 9.3 for exceptions in end products.
B
Standard designations defined in Classification B601.
C
Hardness is the normal commercial acceptance criterion. Mechanical properties apply only when specifically required.
D
ksi = 1000 psi.
E
The upper limits in the tensile strength column are for design guidance only.
8.1.3 Precipitation Hardened TF00 (AT).
8.1.4 Hard and Precipitation Heat Treated TH04 (HT).
8.2 Tempers available under this specification are defined in Classification B601.
9. Precipitation Heat Treatment
9.1 When material is purchased in the TB00(A) or the TD04(H) tempers, the precipitation heat treatment is performed by the
purchaser.
9.2 When testing for conformance to the TF00(AT) and the TH04(HT) property requirements shown in Table 3 for products
supplied in the TB00(A) and TD04(H) tempers, the appropriate test specimens shall be heat treated for times and temperatures
within those stated in Table 4. The times and temperatures used by the manufacturer to qualify the material will be stated on the
mill test report. The use of other times and temperatures, within the allowable ranges, shown in Table 4, may produce properties
other than those stated on the mill test report. This will not be cause for rejection.
9.3 This material may be heat-treated at other times and temperature for specific applications. These special combinations of
properties, such as increased ductility, dimensional accuracy, endurance life, may be obtained by special precipitation-hardening
heat treatments. The mechanical requirements of Table 3 do not apply to such special heat treatments. Specific test requirements
as needed shall be agreed upon between the manufacturer, or supplier, and the purchaser of the end product.
9.4 TF00 (AT) and TH04 (HT) tempers are standard mill-hardened products that have been precipitation heat-treated and tested
by the manufacturer. An appropriate time and temperature has been used to produce properties within the specification limits shown
in Table 3. Table 4 does not apply. Further, thermal treatments of these tempers is not normally required.
10. Physical Property Requirements
10.1 Microstructure and Grain Size
10.1.1 The product in the precipitation heat-treated condition shall have a microstructure with a minimum of second phase
(beta) constituents.
TABLE 4 Standard Precipitation Heat-Treatment Time for
Acceptance Tests
Time at
Temper Designation
Before Hardening Diameter to 675°F
(316 to
Standard Former
357°C), h
TF00 Solution-heat treated (A) all sizes 3–4
TH04 Hard (H) all sizes 2–3
B643 − 12 (2016)
10.1.2 Grain size, if required, shall be agreed upon between the purchaser and the manufacturer or the supplier and shall be
determined in accordance with Test Methods E112.
11. Mechanical Property Requirements
11.1 Rockwell Hardness Requirement:
11.1.1 Product furnished under this specification shall conform to the Rockwell hardness requirements in Table 2 and Table 3,
when tested in accordance with Test MethodMethods E18.
11.1.2 Acceptance or rejection based on mechanical properties shall depend only on Rockwell hardness.
11.1.3 Where agreement on Rockwell hardness tests cannot be reached, the tensile strength requirements of Table 2 and Table
3 shall be the basis for acceptance or rejection.
11.2 Tension Strength Requirements:
11.2.1 When specified in the contract or purchase order, product furnished under this specification shall conform to the tensile
strength requirements in Table 2 and Table 3, when tested in accordance with Test MethodMethods E8/E8M.
11.2.2 Only when specified in the contract or purchase order, acceptance or rejection based upon mechanical properties shall
depend only on tensile strength.
12. Dimensions, Mass and Permissible Variations
12.1 General:
12.1.1 The standard method of specifying wall thickness shall be in decimal fractions of an inch.
12.1.2 For the purpose of determining conformance with the dimensional requirements prescribed in this specification, any
measured value outside the specified values for any dimension may be cause for rejection.
12.1.3 Tolerances on a given tube may be specified with respect to any two, but not all three, of the following: outside diameter,
inside diameter, wall thickness.
NOTE 1—Blank spaces in the tolerance tables indicate either that the material is not generally available or no tolerances have been established.
12.2 Wall-Thickness Tolerances—Wall-thickness tolerances shall be in accordance with Table 5 and Table 6.
12.3 Diameter Tolerances—Diameter tolerances shall be in accordance with Table 7.
12.4 Length Tolerances—Length tolerances shall be in accordance with Table 8.
12.5 Squareness—For tube in straight lengths, the departure from squareness of the end shall not exceed the following:
Specified Outside
Diameter, in. (mm) Tolerance, in./in. (mm/mm)
3 1
⁄4 (19.1) and over ⁄16 (1.6)
12.6 Straightness—Refer to Table 7 of Specification B251.
13. Sampling
13.1 Sampling—The lot size, portion size, and selection of sample pieces shall be as follows:
13.1.1 Lot Size—The lot size shall be 10 000 lb or fraction thereof.
A
TABLE 5 Wall-Thickness Tolerances—TD04 (H) and TH04 (HT) Tempers
NOTE 1—Maximum Deviation of Any Point—The following tolerances are plus and minus: if tolerances all plus or all minus are desired double the
values given.
Outside Diameter, in. (mm)
Over ⁄8 to Over 1 to 2 Over 2 to 4 Over 4 to 7 Over 7 to 12
Wall Thickness, in. (mm)
1 (15.9 to 25.4), (25.4 to 50.8), (50.8 to 102), (102 to 173), (173 to 305),
incl incl incl incl incl
... ...
... ...
... ...
Over 0.034 (0.864), to 0.057 (1.45) incl 0.0045 (0.11) 0.0045 (0.11) 0.0065 (0.17) 0.009 (0.23) .
Over 0.057 (1.45) to 0.082 (2.08) incl 0.005 (0.13) 0.005 (0.13) 0.0075 (0.19) 0.010 (0.25) 0.013 (0.33)
Over 0.082 (2.08) to 0.119 (3.02) incl 0.0065 (0.17) 0.0065 (0.17) 0.009 (0.23) 0.011 (0.28) 0.014 (0.36)
Over 0.119 (3.02) to 0.164 (4.17) incl 0.007 (0.18) 0.0075 (0.19) 0.010 (0.25) 0.013 (0.33) 0.015 (0.38)
Over 0.164 (4.17) to 0.219 (5.56) incl 0.009 (0.23) 0.010 (0.25) 0.012 (0.30) 0.015 (0.38) 0.018 (0.46)
Over 0.219 (5.56) to 0.283 (7.19) incl 0.012 (0.30) 0.013 (0.33) 0.015 (0.38) 0.018 (0.46) 0.020 (0.51)
B B
Over 0.283 (7.19) to 0.379 (9.62) incl 0.014 (0.36) 0.015 (0.38) 0.018 (0.46) 6 % 6 %
B B B B
Over 0.379 (9.62) . 6 % 6 % 6 % 6 %
A
When tube is ordered by outside and inside diameters, the maximum plus and minus deviation of the wall thickness from the nominal at any point shall not exceed the
values given in this table more than 50 %.
B
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