ASTM B552-98(2004)
(Specification)Standard Specification for Seamless and Welded Copper--Nickel Tubes For Water Desalting Plants
Standard Specification for Seamless and Welded Copper--Nickel Tubes For Water Desalting Plants
SCOPE
1.1 This specification establishes requirements for seamless and welded copper-nickel tubes from 0.625 to 1.25 in. (15.9 to 31.8 mm) in diameter for use in heat exchangers in water desalting plants. The following alloys are involved: Copper Alloy UNS Nos. C70600, C71500, C71640, and C72200.
1.2 The values stated in inch-pound units are the standard. Values given in parentheses are provided for information only.
The following safety hazard caveat pertains only to the test methods of Section described in 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.
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Designation: B 552 – 98 (Reapproved 2004)
Standard Specification for
Seamless and Welded Copper–Nickel Tubes for Water
Desalting Plants
This standard is issued under the fixed designation B 552; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* E 118 Test Methods for Chemical Analysis of Copper-
Chromium Alloys
1.1 This specification establishes requirements for seamless
E 243 Practice for Electromagnetic (Eddy-Current) Exami-
and welded copper-nickel tubes from 0.625 to 1.25 in. (15.9 to
nation of Copper and Copper-Alloy Tubes
31.8 mm) in diameter for use in heat exchangers in water
E 255 Practice for Sampling Copper and CopperAlloys for
desalting plants. The following alloys are involved: Copper
Determination of Chemical Composition
Alloy UNS Nos. C70600, C71500, C71640, and C72200.
E 478 Test Methods for Chemical Analysis of Copper
1.2 The values stated in inch-pound units are the standard.
Alloys
Values given in parentheses are provided for information only.
1.3 The following safety hazard caveat pertains only to the
3. Terminology
test methods of Section 16 described in this specification: This
3.1 For definitions of terms related to copper and copper
standarddoesnotpurporttoaddressallofthesafetyconcerns,
alloys, refer to Terminology B 846.
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
of this standard to establish appropriate safety and health
4. Classification
practices and determine the applicability of regulatory limita-
4.1 Tubes furnished to this specification are classified into
tions prior to its use.
two types, as follows:
2. Referenced Documents 4.1.1 Seamless tube and
2 4.1.2 Welded tube.
2.1 ASTM Standards:
B 111 Specification for Copper and Copper-Alloy Seamless
5. Ordering Information
Condenser Tubes and Ferrule Stock
5.1 Ordersforproductsunderthisspecificationshallinclude
B 153 Test Method for Expansion (Pin Test) of Copper and
the following information:
Copper-Alloy Pipe and Tubing
5.1.1 ASTM designation and year of issue,
B 543 Specification for Welded Copper and Copper-Alloy
5.1.2 Copper Alloy UNS number designation,
Heat Exchanger Tube
5.1.3 Whether seamless or welded (Section 4),
B 601 Classification for Temper Designations for Copper
5.1.4 Temper (Section 8),
and Copper Alloys—Wrought and Cast
5.1.5 Dimensions: diameter and wall thickness (whether
B 846 Terminology for Copper and Copper Alloys
minimum or nominal), and length (Section 12),
E 8 Test Methods for Tension Testing of Metallic Materials
5.1.6 Total number of pieces of each size, and
E 62 Test Methods for Chemical Analysis of Copper and
5.1.7 How furnished, whether in straight lengths or coils.
Copper Alloys (Photometric Methods)
5.2 The following options are available and, when required,
E 76 Test Methods for ChemicalAnalysis of Nickel-Copper
3 are to be specified at the time of placing of the order:
Alloys
5.2.1 Whether further finish processing of welded tube is
needed (6.2.2.1),
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper 5.2.2 Hydrostatic test (11.2),
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
5.2.3 Pneumatic test (11.3),
and Tube.
5.2.4 Certification (Section 20), and
Current edition approved May 1, 2004. Published May 2004. Originally
e1
5.2.5 Mill test report (Section 21).
approved in 1971. Last previous edition approved in 1998 as B 552 – 98 .
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 6. Materials and Manufacture
Standards volume information, refer to the standard’s Document Summary page on
6.1 Material:
the ASTM website.
Withdrawn.
*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.
B 552 – 98 (2004)
6.1.1 The material of manufacture shall be cast billets of 8.1.1 Seamless Tube—The product shall be furnished in
Copper Alloys UNS Nos. C70600, C71500, C71640, and either the O61 (annealed), or the H55 (light drawn, light
C72200 as specified in the ordering information, and shall be cold-worked) temper, as specified in the ordering information.
of such quality and soundness as to be suitable for processing 8.1.2 WeldedTube—Theproductshallbefurnishedineither
into finished lengths or coils of tube to meet the properties the WO61 (welded and annealed) or the WC55 (welded and
prescribed herein. light cold worked) temper as specified in the ordering infor-
6.2 Manufacture: mation.
6.2.1 Seamless Tube—The product shall be manufactured 8.2 Tubes shall conform to the tensile requirements shown
bysuchhotextrusionorpiercing,andsubsequentcoldworking in Table 2.
and annealing as to produce a uniform, seamless wrought
structure in the finished product. 9. Mechanical Property Requirements
6.2.2 Welded Tube—The product shall be manufactured
9.1 Tensile Strength:
from cold rolled strip which is subsequently formed and
9.1.1 The product shall conform with the tensile strength
welded by an automatic welding process.
requirements prescribed in Table 2 for the temper, alloy and
6.2.2.1 As-welded tubes are permitted to have further pro-
type specified in the ordering information when tested in
cessing when agreement is established between the manufac-
accordance with Test Methods E 8.
turer or supplier and purchaser.
6.2.3 The product shall be cold worked and annealed as
10. Performance Requirements
necessary to meet properties of the temper specified.
10.1 Expansion Test Requirements:
10.1.1 Tube specimens selected for test shall withstand the
7. Chemical Composition
expansion shown in Table 3 at one end when tested in
7.1 The product shall conform to the chemical composition
accordance with Test Method B 153. The expanded tube shall
requirements specified in Table 1 for the Copper Alloy UNS
show no cracking or rupture visible to the unaided eye.
number designation specified in the ordering information.
10.2 Flattening Test Requirements:
7.2 These composition limits do not preclude the presence
10.2.1 Tube specimens approximately 4 ft (1.22 m) long
of other elements.When required, limits for unnamed elements
shall be tested in the annealed condition by flattening on
shall be established and analysis required by agreement be-
different elements throughout the length. Each element shall be
tween the manufacture or supplier and purchaser.
flattened by one stroke of a press.The term “flattened” shall be
7.2.1 For copper alloys in which copper is specified as the
interpreted as follows: a micrometer set at three times the wall
remainder, copper may be taken as the difference between the
thickness shall pass over the tube freely throughout the
sum of all the elements analyzed and 100 %.
flattened part except as the points where the change in element
7.2.1.1 When all the elements in Table 1 are analyzed, their
of flattening takes place.
sum shall be as shown in the following table:
10.2.1.1 For seamless tube the flattened elements shall not
Copper Alloy UNS No. Copper Plus Named Elements, % min
showcrackingorrupturevisibletotheunaidedeye.Superficial
rupturesresultingfromsurfaceimperfectionsshallnotbecause
C70600 99.5
C71500 99.5 for rejection.
C71640 99.5
10.2.1.2 For seam-welded tube, the weld shall be placed in
C72200 99.8
a position of maximum bend for at least one fourth of the
flattened elements. The flattened elements shall not show
8. Temper
cracking or rupture visible to the unaided eye. If the tube has
8.1 Tempers within this specification are as defined in
Classification B 601.
TABLE 2 Tensile Requirements
Temper
Copper Alloy Tensile Strength,
TABLE 1 Chemical Requirements
UNS No. min, ksi (MPa)
Standard Former
Composition, %
C70600 O61 annealed 40 (275)
Element Copper Alloy UNS No.
W061 welded and annealed 40 (275)
C70600 C71500 C71640 C72200 H55 light drawn, light cold worked 45 (310)
WC55 welded and light cold worked 45 (310)
Copper (incl silver) remainder remainder remainder remainder
C71500 O61 annealed 52 (360)
A A A A
Lead, max 0.05 0.05 0.05 0.05
WO61 welded and annealed 52 (360)
Iron 1.0–1.8 0.40–1.0 1.7–2.3 0.5–1.0
H55 light drawn, light cold worked 54 (370)
A A A A
Zinc, max 1.0 1.0 1.0 1.0
WC55 welded and light cold worked 54 (370)
Nickel (incl cobalt) 9.0–11.0 29.0–33.0 29.0–32.0 15.0–18.0
C71640 O61 annealed 63 (435)
Manganese 1.0 max 1.0 max 1.5–2.5 1.0
WO61 welded and annealed 63 (435)
Chromium . . . . . . . . . 0.30–0.70
H55 light drawn, light cold worked 75 (515)
AAAA
Other named elements
WC55 welded and light cold worked 75 (515)
Copper + elements with specific . . . 99.5min
C72200 O61 annealed 45 (310)
limits
WO61 welded and annealed 45 (310)
A
When the product is for subsequent welding applications and so specified by H55 light drawn, light cold worked 50 (345)
WC55 welded and light cold worked 50 (345)
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.
B 552 – 98 (2004)
TABLE 3 Expansion Test Requirements
subjected to a pressure gage reading over 1000 psi (7 MPa)
Temper Expansion of unless specifically stipulated in the contract or purchase order.
Tube Outside
Copper Alloy
P 5 2St/~D 2 0.8t! (1)
Diameter, % of
UNS No.
Original Outside
Standard Former
Diameter where:
P = hydrostatic pressure, psi (MPa);
C70600 O61 annealed 30
W061 welded and annealed 30 t = wall thickness of the material, in. (mm);
H55 light drawn, light cold worked 15
D = outside diameter of the material, in. (mm); and
WC55 welded and light cold worked 15
S = allowable stress of the material, psi (MPa).
C71500 O61 annealed 30
11.3 Pneumatic Test:
WO61 welded and annealed 30
H55 light drawn, light cold worked 15
11.3.1 When specified in the contract or purchase order,
WC55 welded and light cold worked 15
each tube shall be subjected to a minimum internal air pressure
C71640 O61 annealed 30
of 60 psig (415 kPa) for 5 s without showing evidence of
WO61 welded and annealed 30
H55 light drawn, light cold worked 15
leakage.
WC55 welded and light cold worked 15
C72200 O61 annealed 30
12. Dimensions, Mass, and Permissible Variations
WO61 welded and annealed 30
H55 light drawn, light cold worked 15 12.1 Diameter—Tubestobefurnishedshallrangeinoutside
WC55 welded and light cold worked 15 5 1
diameter, as specified, from ⁄8 to 1 ⁄4 in. (15.9 to 31.8 mm)
inclusive. The diameter of the tubes shall not vary from that
specified by more than the following amount as measured by
“go” and “no go” gages:
been further processed after welding and the weld cannot be
Specified Diameter, Tolerance, Plus and Minus
located, the test shall be performed in accordance with 10.2.1.
in. (mm) in. (mm)
10.3 Weld Quality Test Requirements:
10.3.1 Seam Welds—Conformance to the quality require-
To 1 (25.4) incl 0.004 (0.10)
Over 1 to 1.250 (25.4 to 31.8) incl 0.005 (0.13)
ments of 13.3 shall be demonstrated at the welding job site by
a 180° reverse-bend test. Specimens approximately 1 ⁄2 in.
12.1.1 When tubes are supplied in coils for straightening at
(38.1 mm) long containing the weld shall be sectioned along
jobsite the above tolerances apply to the finished straightened
thelongitudinalaxisofthetubewiththeseamweldcenteredin
tubes.
one of the test sections. The sections containing the seam weld
12.2 Wall Thickness—Tubes shall be furnished as specified,
shall be flattened in a vise or equivalent tool before bending,
with wall thicknesses in the range of 0.035 to 0.065 in. (0.889
and then bent 180° over a radius equal to three times the
to 1.65 mm), inclusive.
nominal tube wall thickness. The root of the weld shall be
12.2.1 The wall thickness at any point shall not be less than
locatedontheoutsidesurfaceoftheknuckleofthebend.There
that specified except when tubes are specifically ordered to a
shall be no evidence of cracks or lack of penetration in the
“nominal” wall thickness.When tube is ordered to a “nominal”
weld. In cases in which the seam-welded tube is further
wall thickness the deviation of the wall thickness from “nomi-
processed, it may be difficult or impossible to locate the weld,
nal” shall not exceed 610 % of the nominal wall thickness,
and then this paragraph will not be a requirement.
expressed to the nearest 0.0005 in. (0.013 mm).
12.2.2 The residual inner-bead reinforcement after removal
11. Nondestructive Test Requirements
at seam-weld areas shall not exceed 0.006 in. (0.15 mm) in
11.1 Electromagnetic (Eddy-Current) Test:
height.
11.1.1 Each tube shall be subjected to an eddy-current test.
12.3 Length—The lengths of the straight tubes shall not be
Testing shall follow the procedures of Practice E 243.
less than that specified when measured at a temperature of
11.1.2 The provisions for the determination of “end-effect”
20°C but may exceed the specified value by the amounts given
in Practice E 243 shall not apply.
inTable 4. For tube ordered in coils, the length may not be less
11.1.3 WhentestedinaccordancewithPracticeE 243,tubes
than that specified.
that do not actuate the signaling device of the testing unit shall
12.4 Squareness of Cut—The departure from squareness of
be considered as conforming to the requirements of the test.
theendofanystraighttubeshallnotexceed0.016in./in.(0.016
11.1.4 Either notch depth or drilled hold standards shall be
mm/mm) of diameter.
used.
12.5 Tubes furnished in straight lengths shall be reasonably
11.1.4.1 Notch depth standards shall be 10 % of the wall
straight when inspected at the mill. The maximum curvature
thickness.
TABLE 4 Length Tolerance
11.1.4.2 Drilled hole standards shall be per Table X1.2 of
Practice E 243. Specified Length Tolerance, All Plus
11.2 Hydrostatic Test:
ft (m) in. (mm)
11.2.1 When specified in the contract or purchase order,
Up to 15 (4.9) incl ⁄32 (2.4)
each tube shall stand, without showing evidence of leakage, an Over 15 to 20, incl (4.9–6.6) incl ⁄8 (3.2)
Over 20 to 30, incl (6.6–9.8) incl ⁄32 (4.0)
internal hydrostatic pressure sufficient to produce a fiber stress
Over 30 to 60, incl (9.9–19.7) incl ⁄8 (9.5)
of 7000 psi (48 MPa) as determined by the following equation
Over 60 to 100, incl (19.7–32.8) incl ⁄2 (12.7)
for thin hollow cylinders under tension. The tube need not be
B 552 – 98 (2004)
(depthofarcininches)shallnotexceed ⁄4in.(6.35mm)inany 14.2.1.3 Because of the discontinuous nature of the process-
3-ft (0.914-m) length, except for the 3 ft (0.914 m) at the en
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