ASTM B569-98
(Specification)Standard Specification for Brass Strip in Narrow Widths and Light Gage for Heat-Exchanger Tubing
Standard Specification for Brass Strip in Narrow Widths and Light Gage for Heat-Exchanger Tubing
SCOPE
1.1 This specification establishes requirements for brass strip (Copper Alloy UNS Nos. C23000, C26000, and C26130 ) in widths 3 in. (76.2 mm) and under and thickness less than 0.018 in. (0.457 mm), for the manufacture of thin-walled tubes for water passages in heat exchangers for internal combustion engines and other closed-system heat sources.
1.2 The values stated in inch-pound units are the standard, except for grain size, which is always specified in millimetres. Values given in parentheses are for information only.
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Designation: B 569 – 98
Standard Specification for
Brass Strip in Narrow Widths and Light Gage for Heat-
Exchanger Tubing
This standard is issued under the fixed designation B 569; 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 * 3.2.1 capable of—the test need not be performed by the
producer of the product; however, should subsequent testing by
1.1 This specification establishes the requirements for brass
the purchaser establish that the product does not meet these
strip in narrow widths and light gages produced from Copper
requirements, the product shall be subject to rejection.
Alloys Nos. C23000, C26000, and C26130.
NOTE 1—This product is commonly used for the manufacture of 4. Ordering Information
thin-wall tubes for water passages in heat exchangers for internal
4.1 Orders for products should include the following infor-
combustion engines and other closed system heat sources.
mation:
1.2 Values given in inch-pound units are the standard except
4.1.1 ASTM designation and year of issue (for example,
for grain size, which are given in SI units. Values given in
B 569–XX),
parentheses are for information only.
4.1.2 Copper Alloy UNS No. designation (for example,
C26000),
2. Referenced Documents
4.1.3 Temper (Section 7),
2.1 ASTM Standards:
4.1.4 Dimensions: thickness, width, length, and so forth
B 248 Specification for General Requirements for Wrought
(Section 11), and
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
4.1.5 Quantity: total weight each form, temper, and size.
Bar
4.2 The following options are available and should be
B 601 Practice for Temper Designations for Copper and
specified at the time of placing an order when required:
Copper Alloys—Wrought and Cast
4.2.1 Heat identification or traceability details,
B 846 Terminology for Copper and Copper Alloys
4.2.2 Certification, and
E 3 Methods of Preparation of Metallographic Specimens
4.2.3 Mill test report.
E 8 Test Methods for Tension Testing of Metallic Materials
5. Materials and Manufacture
E 29 Practice for Using Significant Digits in Test Data to
Determine Conformance With Specifications
5.1 Material:
E 112 Test Methods for Determining Average Grain Size
5.1.1 The material of manufacture shall be cast bar, cake, or
E 478 Test Methods for Chemical Analysis of Copper
slab of Copper Alloy UNS No. C23000, C26000, or C26130 of
Alloys
such purity and soundness as to be suitable for processing into
the products prescribed herein.
3. Terminology
5.1.2 In the event heat identification or traceability is
3.1 Definitions—For definitions of terms used in this speci-
required, the purchaser shall specify the details desired.
fication, refer to Terminology B 846.
NOTE 2—Because of the discontinuous nature of the processing of
3.2 Definitions of Terms Specific to This Standard:
castings into wrought products, it is not always practical to identify a
specific casting analysis with a specific quantity of finished material.
This specification is under the jurisdiction of ASTM Committee B-5 on Copper 5.2 Manufacture:
and Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
5.2.1 The product width shall be 3 in. (76.2 mm) and under,
Sheet, and Strip.
and thickness shall be less than 0.018 in. (0.457 mm).
Current edition approved May 10, 1998. Published March 1999. Originally
5.2.2 The product shall be manufactured by such hot-
published as B 569 – 72. Last previous edition B 569 – 93.
Annual Book of ASTM Standards, Vol 02.01.
working, cold-working, and annealing processes as to produce
Annual Book of ASTM Standards, Vol 03.01.
a uniform wrought structure in the finished product.
Annual Book of ASTM Standards, Vol 14.02.
Annual Book of ASTM Standards, Vol 03.06.
*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.
B569–98
5.2.2.1 The product shall be hot- or cold-worked to the 10. Dimensions, Mass, and Permissible Variations
finished size, and subsequently annealed, when required, to
10.1 Unless closer tolerances are specified in the contract or
meet the temper properties specified.
purchase order, the product furnished shall conform to the
following thickness and width tolerances:
6. Chemical Composition
10.1.1 Thickness Tolerances—Table 4.
10.1.2 Width Tolerances—Table 5.
6.1 The material shall conform to the chemical composi-
10.2 Straightness Tolerances—The maximum edgewise
tional requirements in Table 1 for Copper Alloy UNS No.
curvature (depth of arc) in any 72-in. (1830-mm) continuous
designation specified in the ordering information.
length shall not exceed ⁄8in. (3.18 mm).
6.1.1 These composition limits do not preclude the presence
of other elements. Limits may be established and analysis
11. Workmanship, Finish and Appearance
required for unnamed elements by agreement between the
manufacturer and the purchaser. 11.1 The strip shall be free of defects, but blemishes of a
nature that do not interfere with normal commercial operations
6.2 Zinc, specified as the “Remainder,” may be taken as the
difference between the sum of results for all elements deter- are acceptable. It shall be well-cleaned and free of dirt. A
superficial film of residual light lubricant may be present and is
mined and 100 %.
acceptable unless otherwise specified.
6.2.1 When zinc is determined, however, copper may be
11.2 The surface finish and appearance shall be the normal
taken by difference, and when so taken, the results must
commercial quality for the alloy, thickness, and temper or-
conform with the requirements of Table 1 for copper.
dered. When application information is provided with the
6.3 When all elements listed in Table 1 are determined for
purchase order, the surface shall be that commercially produc-
C26000 and C26130 the sum of results shall be 99.7 % min and
ible for the application. Superficial films of discoloration, or
for C23000 the sum of results shall be 99.8 % min.
lubricants, or tarnish inhibitors are permissible unless other-
wise specified.
7. Temper
7.1 Products shall be produced in tempers H01 ( ⁄4 hard),
12. Sampling
1 1
H02 ( ⁄2 hard), O81 (Annealed-to-Temper— ⁄4 hard), and O82
12.1 Sampling—The lot size, portion size, and selection of
(Annealed-to-Temper— ⁄2 hard) as defined in Practice B 601.
sample pieces shall be as follows:
NOTE 3—The purchaser should confer with the manufacturer or sup-
12.1.1 Lot Size—An inspection lot shall be 10 000 lb (4550
plier for the availability of product in a specific temper.
kg) or less of material of the same mill form, alloy, temper, and
nominal dimensions, subject to inspection at one time or shall
8. Grain Size of Annealed Tempers
be the product of one cast bar from a single melt charge, whose
8.1 Annealed-to-Temper (O81 and O82) strip shall have an
weight shall not exceed 25 000 lb (11 350 kg), that has been
average grain size of 0.015 mm max as determined by Test
processed continuously and subject to inspection at one time.
Methods E 112.
12.1.2 Portion Size—A portion shall be four or more pieces
selected to be representative of each lot. If the lot consists of
9. Mechanical Property Requirement less than four pieces, representative samples shall be taken
from each piece.
9.1 Tensile Strength Requirement—The product furnished
12.1.2.1 Chemical Analysis—The sample for chemical
shall conform to the requirements prescribed in Tables 2 and 3
analysis shall be taken in accordance with Practice E 255 for
for the temper specified in the ordering information when
product in its final form. Unless otherwise required by the
tested in accordance with Test Methods E 8.
purchaser, at the time the order is placed the manufacturer shall
9.2 Yield Strength Requirement—The product furnished
have the option of determining conformance to chemical
shall be capable of conforming to the requirements prescribed
composition by analyzing samples taken at the time the
in Tables 2 and 3 for the temper specified in the ordering
castings are poured or samples taken from the semifinished
information when tested in accordance with Test Methods E 8.
product if heat identity can be maintained throughout all
9.3 Elongation Test Requirement—The product furnished
operations. If the manufacturer determines the chemical com-
shall conform to the requirements prescribed in Tables 2 and 3
position during manufacture, he shall not be required to sample
for the temper specified in the ordering information when
and analyze the finished product. The minimum weight of the
tested in accordance with Test Methods E 8.
composite sample in accordance with Practice E 255 shall be
150 g.
12.1.2.2 Samples for All Other Tests—Samples for all other
TABLE 1 Chemical Requirements
tests shall be taken from the sample portion in 12.1.2 and be of
Copper Composition, %
a convenient size to accommodate the test and comply with the
Alloy UNS Lead, Iron,
Copper Arsenic Zinc
requirements of the appropriate ASTM product standards and
No. max max
A
C23000 84.0–86.0 0.05 0.05 . . . Remainder
test methods.
B
C26000 68.5–71.5 0.07 0.05 . . . Remainder
B
C26130 68.5–71.5 0.05 0.05 0.02–0.08 Remainder
13. Number of Tests and Retests
A
Cu + Sum of Named Elements = 99.8 %.
B
Cu + Sum of Named Elements = 99.7 %. 13.1 Tests:
B569–98
TABLE 2 Tensile Strength Requirements and Tension Test Values for Rolled-to-Temper Material
A A
Tensile Strength, ksi (MPa ) Yield Strength, ksi (MPa ) % Elongation
Copper Alloy At 0.5 % In 2 in.
Temper Designation At 0.2 % Offset
UNS No. Extension Under Load (50 mm)
Standard Former Minimum Maximum Minimum Maximum Minimum Maximum Minimum
C23000 H01 ⁄4 Hard 44 (305) 54 (370) 25 (170) 48 (330) 23 (160) 48 (330) 18
C26000 and C26130 H01 ⁄4 Hard 49 (340) 59 (405) 33 (230) 48 (330) 30 (205) 45 (205) 12
C26000 and C26130 H02 ⁄2 Hard 58 (400) 68 (470) 43 (295) 58 (400) 40 (2
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