ASTM B111/B111M-18a

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: B111/B111M − 18 B111/B111M − 18a
Standard Specification for
Copper and Copper-Alloy Seamless Condenser Tubes and
Ferrule Stock
This standard is issued under the fixed designation B111/B111M; 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 tube and ferrule stock of copper and various copper alloys up
to 3 ⁄8 in. [80 mm] inclusive, in diameter, for use in surface condensers, evaporators, and heat exchangers. The following coppers
and copper alloys are specified:
Copper or Copper Previously Used
Description
Alloy UNS No. Designation
C10100 OFE Oxygen-free electronic
A
C10200 OF Oxygen-free without residual deoxidants
C10300 . . . Oxygen-free, extra low phosphorus
C10800 . . . Oxygen-free, low phosphorus
A
C12000 DLP Phosphorized, low residual phosphorus
A
C12200 DHP Phosphorized, high residual phosphorus
A
C14200 DPA Phosphorized, arsenical
C15630 . . . Nickel Phosphorus
C19200 . . . Phosphorized, 1 % iron
C23000 . . . Red Brass
C28000 . . . Muntz Metal
C44300 . . . Admiralty Metals, B, C, and D
C44400 . . . . . .
C44500 . . . . . .
C60800 . . . Aluminum Bronze
C61300 . . . . . .
C61400 . . . Aluminum Bronze, D
C68700 . . . Aluminum Brass, B
C70400 . . . 95-5 Copper-Nickel
C70600 . . . 90-10 Copper-Nickel
C70620 . . . 90-10 Copper-Nickel—Welding Grade
C71000 . . . 80-20 Copper-Nickel
C71500 . . . 70-30 Copper-Nickel
C71520 . . . 70-30 Copper-Nickel—Welding Grade
Copper or Copper Previously Used
Description
Alloy UNS No. Designation
C71640 . . . Copper-nickel-iron-manganese
C72200 . . . . . .
A
Designations listed in Classification B224.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated
in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values
from the two systems may result in non-conformance with the standard.
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 March 1, 2018Oct. 1, 2018. Published April 2018October 2018. Originally approved in 1937. Last previous edition approved in 20162018 as
B111/B111M–16.–18. DOI: 10.1520/B0111_B0111M-18.10.1520/B0111_B0111M–18A.
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-111 in Section II of the Code.
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.
*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
B111/B111M − 18a
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 19, 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, health, and environmental practices and determine the applicability of regulatory
limitations prior to use. (Warning—Mercury has been designated by many regulatory agencies as a hazardous substance that can
cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials.
Caution should be taken Use caution when handling mercury and mercury containing mercury-containing products. See the
applicable product Safety Data Sheet (SDS) for additional information. Users should be aware The potential exists that selling
mercury and/or mercury containing products in your state or country may be prohibited by law.or mercury-containing products,
or both, is prohibited by local or national law. Users must determine legality of sales in their location.)
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 The following documents in the current issue of the Annual Book of ASTM Standardsform form a part of this specification
to the extent referenced herein:
2.2 ASTM Standards:
B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B154 Test Method for Mercurous Nitrate Test for Copper Alloys
B170 Specification for Oxygen-Free Electrolytic Copper—Refinery Shapes
B224 Classification of Coppers
B846 Terminology for Copper and Copper Alloys
B858 Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys
B968/B968M Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube
E8/E8M Test Methods for Tension Testing 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
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys (Withdrawn 2010)
E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)
E112 Test Methods for Determining Average Grain Size
E118 Test Methods for Chemical Analysis of Copper-Chromium Alloys (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
E478 Test Methods for Chemical Analysis of Copper Alloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E2575 Standard Test Method for Determination of Oxygen in Copper and Copper Alloys (Withdrawn 2017)
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms relating to copper and copper alloys, refer to Terminology B846.
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 or Copper Alloy UNS No. Designation (see Table 1);
4.1.3 Temper (Section 7);
4.1.4 Dimensions, outside diameter, and wall thickness, whether minimum or nominal (Section 14);
4.1.5 How furnished (tube or ferrule stock);
4.1.6 Quantity—total weight or total length or number of pieces of each size; and
4.1.7 Intended application.
4.2 The following options are available but may not be included unless specified at the time of placing of the order when
required:
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.
The last approved version of this historical standard is referenced on www.astm.org.
B111/B111M − 18a
TABLE 1 Chemical Requirements
Composition, %
Copper or
Copper
Nickel, Other
Lead,
Alloy UNS
Copper Tin Aluminum incl Iron Zinc Manganese Arsenic Antimony Phosphorus Chromium Named
max
No.
Cobalt Elements
A B C
C10100 99.99 min 0.0002 max . . . 0.0010 max 0.0005 max 0.0010 max 0.0001 0.00005 max 0.0005 0.0004 max 0.0003 max 0.0001 max
max max
C D C
C10200 99.95 min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D
C10300 99.95 min . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.001–0.005 . . . . . .
D
C10800 99.95 min . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.005–0.012 . . . . . .
E D
C12000 99.90 min . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.004–0.012 . . . . . .
D
C12200 99.9 min . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.015–0.040 . . . . . .
D
C14200 99.4 min . . . . . . . . . . . . . . . . . . . . . 0.15–0.50 . . . 0.015–0.040 . . . . . .
B
C15630 remainder . . . . . . 0.60–0.90 . . . . . . . . . . . . . . . . . . 0.015–0.040 . . . . . .
C19200 98.5 min . . . . . . . . . . . . 0.8–1.2 0.20 max . . . . . . . . . 0.01–0.04 . . . . . .
C23000 84.0–86.0 . . . . . . . . . 0.05 0.05 max remainder . . . . . . . . . . . . . . . . . .
C28000 59.0–63.0 . . . . . . . . . 0.09 0.07 max remainder . . . . . . . . . . . . . . . . . .
C44300 70.0–73.0 0.9–1.2 . . . . . . 0.07 0.06 max remainder . . . 0.02–0.06 . . . . . . . . . . . .
C44400 70.0–73.0 0.9–1.2 . . . . . . 0.07 0.06 max remainder . . . . . . 0.02–0.10 . . . . . . . . .
C44500 70.0–73.0 0.9–1.2 . . . . . . 0.07 0.06 max remainder . . . . . . . . . 0.02–0.10 . . . . . .
D
C60800 remainder . . . 5.0–6.5 . . . 0.10 0.10 max . . . . . . 0.02–0.35 . . . . . . . . . . . .
D F, G
C61300 remainder 0.20–0.50 6.0–7.5 0.15 max 0.01 2.0–3.0 0.10 max 0.20 max . . . . . . 0.015 max . . .
D
C61400 remainder . . . 6.0–8.0 . . . 0.01 1.5–3.5 0.20 max 1.0 max . . . . . . 0.015 max . . . . . .
D
C68700 76.0–79.0 . . . 1.8–2.5 . . . 0.07 0.06 max remainder . . . 0.02–0.06 . . . . . . . . . . . .
D
C70400 remainder . . . . . . 4.8–6.2 0.05 1.3–1.7 1.0 max 0.30–0.8 . . . . . . . . . . . . . . .
D
C70600 remainder . . . . . . 9.0–11.0 0.05 1.0–1.8 1.0 max 1.0 max . . . . . . . . . . . . . . .
D
C70620 86.5 min . . . . . . 9.0-11.0 0.02 1.0-1.8 0.50 max 1.0 max . . . . . . 0.02 max . . . C.05 max
S.02 max
D H H H H
C71000 remainder . . . . . . 19.0–23.0 0.05 0.50–1.0 1.0 max 1.0 max . . . . . . . . .
D
C71500 remainder . . . . . . 29.0–33.0 0.05 0.40–1.0 1.0 max 1.0 max . . . . . . . . . . . . . . .
D
C71520 65.0 min . . . . . . 29.0-33.0 0.02 0.40-1.0 0.50 max 1.0 max . . . . . . 0.02 max . . . C.05 max
S.02 max
D H H H
C71640 remainder . . . . . . 29.0–32.0 0.05 1.7–2.3 1.0 max 1.5–2.5 . . . . . . . . . C.06 max
S.03
H
max
D H H H
C72200 remainder . . . . . . 15.0–18.0 0.05 0.50–1.0 1.0 max 1.0 max . . . . . . 0.30–0.70 Si.03
max
Ti.03
H
max
A
This value is exclusive of silver and shall be determined by difference of “impurity total” from 100 %. “Impurity total” is defined as the sum of sulfur, silver, lead, tin, bismuth, arsenic, antimony, iron, nickel, mercury, zinc,
phosphorus, selenium, tellurium, manganese, cadmium, and oxygen present in the sample.
B
Not including Cobalt.
C
Additional impurity maximums in percent for alloy C10100 shall be: bismuth 0.0001, cadmium 0.0001, oxygen 0.0005, selenium 0.0003, sulfur 0.0015, tellurium 0.0002, mercury 0.0001. For C10200, oxygen should
be 0.0010 max.
D
Copper (including silver).
E
This includes oxygen-free Cu which contains P in an amount agreed upon.
F
Silicon shall be 0.10 % max.
G
When the product is for subsequent welding applications and is so specified by the purchaser, chromium shall be 0.05 % max, cadmium 0.05 % max, zinc 0.05 % max, and zirconium 0.05 % max.
H
When the product is for subsequent welding applications, and so specified by the purchaser, zinc shall be 0.50 % max, lead 0.02 % max, phosphorus 0.02 % max, sulfur 0.02 % max, and carbon 0.05 % max.

B111/B111M − 18a
4.2.1 Tension Test per ASME Boiler and Pressure Vessel Code (see Section 8).
4.2.2 Hydrostatic or pneumatic test as an alternative to eddy current test (Section 13).
4.2.3 If the cut ends of the tubes do not need to be deburred (Section 15).
4.2.4 If the product is to be subsequently welded (Table 1, Footnotes G and H).
4.2.5 Residual Stress Test—Ammonia Vapor Test or Mercurous Nitrate Test (Section 12).
4.2.6 For Ammonia Vapor Test, risk level (pH value) if other than 10.
4.2.7 Heat identification or traceability details.
4.2.8 Certification (Section 23).
4.2.9 Test Report (Section 24).
4.2.10 If a subsequent thermal treatment after straightening is required (Section 7).
4.2.11 If product is purchased for agencies of the U.S. Government (see Supplementary Requirements section of this
specification for additional requirements, if required).
5. Materials and Manufacture
5.1 Materials:
5.1.1 The material of manufacture shall be a form of such purity and soundness as to be suitable for processing into the products
prescribed herein.
5.1.2 When specified in the contract or purchase order that heat identification or traceability is required, the purchaser shall
specify the details desired.
5.2 Manufacture:
5.2.1 The product shall be manufactured by such hot-working, cold-working, annealing, straightening, trimming, and other
processes as to produce a uniform seamless tube in the finished product.
5.2.2 The product shall be hot- or cold-worked to the finished size, and subsequently annealed, when required, to meet the
temper properties specified.
6. Chemical Composition
6.1 The product shall conform to the chemical composition requirements specified in Table 1.
6.2 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.
6.2.1 Copper Alloy UNS No. C19200—Copper is the difference between the sum results of all the elements determined and
100 %. When all the elements in Table 1 are determined, their sum shall be 99.8 % minimum.
Due to the discontinuous nature of the processing of castings into wrought products, it is not always practical to identify a specific casting analysis with a specific quantity
of finished material.
B111/B111M − 18a
6.2.2 For alloys in which copper is listed as “remainder,” copper is the difference between the sum results of all the elements
determined and 100 %. When all elements in Table 1 are determined, the sum of the results shall be as follows:
Copper Plus Named
Copper Alloy UNS No.
Elements, % min
C15630 99.5
C60800 99.5
C61300 99.8
C61400 99.5
C70400 99.5
C70600 & C70620 99.5
C71000 99.5
C71500 & C71520 99.5
C71640 99.5
C72200 99.8
6.2.3 For alloys in which zinc is listed as the remainder, either copper or zinc may be taken as the difference between the sum
of all the elements determined and 100 %. When all elements in Table 1 are determined, the sum of the results shall be as follows:
Copper Plus Named
Copper Alloy UNS No.
Elements, % min
C23000 99.8
C28000 99.7
C44300 99.6
C44400 99.6
C44500 99.6
C68700 99.5
7. Temper
7.1 Tubes shall be furnished in the temper designations identified in Tables 2 and 3.
7.1.1 Drawn tempers H55 and H80.
7.1.2 Annealed temper O61.
7.1.3 Drawn and stress-relieved temper HR50.
7.2 Tubes for ferrule stock shall be annealed sufficiently to be fully recrystallized.
7.3 Optional Post-Straightening Thermal Treatment—Some tubes, when subjected to aggressive environments, may have the
potential for stress-corrosion cracking failure due to the residual stresses induced during straightening processing. For such
TABLE 2 Tensile Requirements—Inch-Pound Values
NOTE 1—See Table 3 for tensile requirements—SI values.
Elongation
Temper Designation
B
Tensile Strength,
Yield Strength,
Copper or Copper Alloy UNS No. in 2 in.,
A
A
min ksi min ksi
Code Name
min %
C10100, C10200, C10300, C10800, C12000, C12200, H55 light-drawn 36 30 . . .
C14200
C10100, C10200, C10300, C10800, C12000, C12200, H80 hard-drawn 45 40 . . .
C14200
C15630 O61 annealed 30 8 40
C19200 H55 light-drawn 40 35 . . .
C19200 H80 hard-drawn 48 43 . . .
C19200 O61 annealed 38 12 . . .
C23000 O61 annealed 40 12 . . .
C28000 O61 annealed 50 20 . . .
C44300, C44400, C44500 O61 annealed 45 15 . . .
C60800 O61 annealed 50 19 . . .
C61300, C61400 O61 annealed 70 30 . . .
C68700 O61 annealed 50 18 . . .
C70400 O61 annealed 38 12 . . .
C70400 H55 light-drawn 40 30 . . .
C70600, C70620 O61 annealed 40 15 . . .
C70600, C70620 H55 light-drawn 45 35 . . .
C71000 O61 annealed 45 16 . . .
C71500, C71520 O61 annealed 52 18 . . .
C71500, C71520
Wall thicknesses up to 0.048 in., incl HR50 drawn and stress-relieved 72 50 12
Wall thicknesses over 0.048 in. HR50 drawn and stress-relieved 72 50 15
C71640 O61 annealed 63 25 . . .
C71640 HR50 drawn and stress relieved 81 58 . . .
C72200 O61 annealed 45 16 . . .
C72200 H55 light-drawn 50 45 . . .
A
ksi = 1000 psi.
B
At 0.5 % extension under load.
B111/B111M − 18a
TABLE 3 Tensile Requirements—SI Values
NOTE 1—See Table 2 for tensile requirements—inch-pound values.
Elongation
Temper Designation
A
Tensile Strength, Yield Strength,
Copper or Copper Alloy UNS No. in 50 mm,
min MPa
min MPa
Code Name
min %
C10100, C10200, C10300, C10800, C12000, C12200, H55 light-drawn 250 205 . . .
C14200
C10100, C10200, C10300, C10800, C12000, C12200, H80 hard-drawn 310 275 . . .
C14200
C15630 O61 annealed 205 55 40
C19200 H55 light-drawn 275 240 . . .
C19200 H80 hard-drawn 330 295 . . .
C19200 O61 annealed 260 85 . . .
C23000 O61 annealed 275 85 . . .
C28000 O61 annealed 345 140 . . .
C44300, C44400, C44500 O61 annealed 310 105 . . .
C60800 O61 annealed 345 130 . . .
C61300, C61400 O61 annealed 480 205 . . .
C68700 O61 annealed 345 125 . . .
C70400 O61 annealed 260 85 . . .
C70400 H55 light-drawn 275 205 . . .
C70600, C70620 O61 annealed 275 105 . . .
C70600, C70620 H55 light-drawn 310 240 . . .
C71000 O61 annealed 310 110 . . .
C71500, C71520 O61 annealed 360 125 . . .
C71500, C71520:
Wall thicknesses up to 1.2 mm incl HR50 drawn and stress-relieved 495 345 12
Wall thicknesses over 1.2 mm. HR50 drawn and stress-relieved 495 345 15
C71640 O61 annealed 435 170 . . .
C71640 HR50 drawn and stress relieved 560 400 . . .
C72200 O61 annealed 310 110 . . .
C72200 H55 light-drawn 345 310 . . .
A
At 0.5 % extension under load.
applications, it is suggested that tubes of Copper Alloy UNS Nos. C23000, C28000, C44300, C44400, C44500, C60800, C61300,
C61400, and C68700 be subjected to a stress-relieving thermal treatment subsequent to straightening. If required, this must be
specified on the purchase order or contract. Tolerances for roundness and length, and the condition of straightness, for tube so
ordered, shall meet the requirements agreed upon by the manufacturer and the purchaser.
8. Mechanical Properties
8.1 Material specified to meet the requirements of the ASME Boiler and Pressure Vessel Code shall have tensile properties as
prescribed in Table 2 or Table 3.
9. Grain Size for Annealed Tempers
9.1 Grain size shall be the standard requirement for all product in the annealed (O61) temper.
B111/B111M − 18a
9.1.1 Other than Copper Alloy UNS Nos. C19200 and C28000, acceptance or rejection for all annealed products shall depend
only on average grain size of the test specimen within the limits of 0.010 to 0.045 mm taken from each of two sample portions,
and each specimen shall be within the limits prescribed herein when determined in accordance with Test Methods E112.
10. Performance Requirements
10.1 Expansion Test:
10.1.1 Tube specimens selected for test shall withstand the expansion shown in Table 4 when expanded in accordance with Test
Method B153. The expanded tube shall show no cracking or rupture visible to the unaided eye.
10.2 Hard-drawn tubes not end annealed are not subject to this test. When tubes are specified end annealed, this test is required
and shall be performed on the annealed ends of the sampled tubes.
10.3 Tubes for ferrule stock are not subject to the expansion test.
11. Flattening Test
11.1 Test Method—Each test specimen shall be inspected per Test Method B968/B968M.
11.2 During inspection, the flattened areas of the test-specimen shall be free of defects, but blemishes of a nature that do not
interfere with the intended application are acceptable.
11.3 Tubes for ferrule stock are not subject to flattening test.
12. Residual Stress Test
12.1 A residual stress test, when specified in the purchase order, is required only for Copper Alloy UNS Nos. C23000, C28000,
C44300, C44400, C44500, C60800, C61300, C61400, and C68700 and when not supplied in an annealed temper.
12.2 Unless otherwise specified, the producer shall have the option of testing the product to either the mercurous nitrate test,
Test Method B154, or the ammonia vapor test, Test Method B858, as prescribed below.
12.2.1 Mercurous Nitrate Test:
12.2.1.1 Warning—Mercury is a definite health hazard and therefore equipment for the detection and removal of mercury vapor
produced in volatilization is recommended. The use of rubber gloves in testing is advisable.
12.2.1.2 The test specimens, cut 6 in. [150 mm] in length, shall withstand without cracking, an immersion in the standard
mercurous nitrate solution prescribed in Test Method B154. The test specimen shall include the finished tube end.
12.2.2 Ammonia Vapor Test:
TABLE 4 Expansion Requirements
Expansion of Tube Outside
Temper Designation
Copper or Copper Alloy UNS No. Diameter, in Percent of
Code Name
Original Outside Diameter
O61 annealed C19200 30
O61 annealed C15630 40
C19200 30
C23000 20
C28000 15
C44300, C44400, C44500 20
C60800 20
C61300, C61400 20
C68700 20
C70400 30
C70600, C70620 30
C71000 30
C71500, C71520 30
C71640 30
C72200 30
H55 light-drawn C10100, C10200, C10300, C10800, 20
C12000, C12200
C14200 20
C19200 20
C70400 20
C70600, C70620 20
C72200 20
HR50 drawn and stress relieved C71500, C71520 20
C71640 20
. . . hard-drawn and end annealed C10100, C10200, C10300, C10800, 30
C12000, C12200, C14200
B111/B111M − 18a
12.2.2.1 The test specimens, cut 6 in. [150 mm] in length, shall withstand without cracking, the ammonia vapor test as
prescribed in Test Method B858. For the purposes of this specification, unless otherwise agreed between purchaser and supplier,
the risk level identified in the Annex of Method B858, shall be specified as risk level (pH value) of 10.
13. Nondestructive Testing
13.1 Each tube shall be subjected to the eddy-current test in 13.1.1. Tubes may be tested in the final drawn, annealed, or
heat-treated temper or in the drawn temper before the final anneal or heat treatment unless otherwise agreed upon by the supplier
and the purchaser. The purchaser may specify either of the tests in 13.1.2 or 13.1.3 as an alternative to the eddy-current test.
13.1.1 Eddy-Current Test—Each tube shall be passed through an eddy-current testing unit adjusted to provide information on
the suitability of the tube for the intended application. Testing shall follow the procedures of Practice E243.
13.1.1.1 The depth of the round-bottom transverse notches or the diameters of the drilled holes in the calibrating tube used to
adjust the sensitivity of the test unit are shown in Tables 5 and 6, and Tables 7 and 8, respectively. Notches of less depth and smaller
diameter drilled holes are acceptable to meet this requirement.
13.1.1.2 Tubes that do not actuate the signaling device of the eddy-current tester shall be considered to conform to the
requirements of this test. Tubes causing irrelevant signals because of moisture, soil, and like effects may be reconditioned and
retested. Such tubes, when retested to the original test parameters, shall be considered to conform if they do not cause output
signals beyond the acceptable limits. Tubes causing irrelevant signals because of visible and identifiable handling marks may be
retested by the hydrostatic test prescribed in 13.1.2, or the pneumatic test prescribed in 13.1.3. Tubes meeting requirements of
either test shall be considered to conform if the tube dimensions are within the prescribed limits, unless otherwise agreed upon
between the manufacturer and the purchaser.
13.1.2 Hydrostatic Test—Each tube shall stand, without showing evidence of leakage, an internal hydrostatic pressure sufficient
to subject the material to a fiber stress of 7000 psi [48 MPa] as determined by the fol
...