ASTM B846-06a
(Terminology)Standard Terminology for Copper and Copper Alloys
Standard Terminology for Copper and Copper Alloys
SCOPE
1.1 The terms defined in this terminology standard are applicable to copper and copper alloy products specifications, test methods, practices, and other documents within the jurisdiction of Committee B05 on Copper and Copper Alloys.
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Designation:B846–06a
Standard Terminology for
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Copper and Copper Alloys
This standard is issued under the fixed designation B846; 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.
1. Scope acid dipped-dry rolled finish—see finish, acid dipped-dry
rolled.
1.1 The terms defined in this terminology standard are
Admiralty—an alloy containing nominally 71 % copper: 1 %
applicable to copper and copper alloy products specifications,
tin and 28 % zinc, originally developed by the British
test methods, practices, and other documents within the juris-
Admiralty and generally available in tube, flat products, and
diction of Committee B05 on Copper and Copper Alloys.
wire. Its principal use is in heat exchanger and condenser
2. Referenced Documents
tubes.Aninhibitormaybeaddedtoincreasetheresistanceto
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dezincification.
2.1 ASTM Standards:
Admiralty, inhibited (arsenical, antimonial or
B153 Test Method for Expansion (Pin Test) of Copper and
phosphorized)—admiralty modified by the addition of
Copper-Alloy Pipe and Tubing
small amounts of arsenic, antimony or phosphorus to inhibit
B170 Specification for Oxygen-Free Electrolytic Copper—
dezincification. (Copper Alloy Nos. C44300, C44400,
Refinery Shapes
C44500)
B379 Specification for Phosphorized Coppers—Refinery
air stain—see stain, air.
Shapes
alpha—the name of a phase or of a certain range of copper
E8 Test Methods for Tension Testing of Metallic Materials
alloys which contain one or more alloying elements dis-
E10 Test Method for Brinell Hardness of Metallic Materials
solved in copper, the phase being a homogeneous solid
E18 Test Methods for Rockwell Hardness of Metallic Ma-
solution.
terials
alpha beta brass—a series of copper-zinc alloys containing
E23 Test Methods for Notched Bar Impact Testing of
approximately 55 to 63 % copper and the remainder mostly,
Metallic Materials
if not all, zinc and composed of crystals or grains of both the
E112 Test Methods for Determining Average Grain Size
alpha and the beta phases.
3. Significance and Use
aluminum brass—a copper alloy containing nominally
77.5 % copper, 2 % aluminum and 20.5 % zinc with an
3.1 This terminology is not intended to apply to any
arsenical inhibitor, available in tube form. Its principal use is
standard, test method, practice, or other document not within
in heat exchanger and condenser tubes. (Copper Alloy No.
the jurisdiction of Committee B05 on Copper and Copper
C68700)
Alloys.
aluminum bronze—copper alloys with aluminum as the
4. Terminology
principal alloying element, normally in the range of 3 to
11 % with or without the additions of other elements.
acid dip—see dip solution.
(Copper Alloy Nos. C60800 – 64699 incl.)
anneal (annealing)—a thermal treatment to change the prop-
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This terminology is under the jurisdiction ofASTM Committee B05 on Copper erties or grain structure of the product. When applied to a
and Copper Alloys and is the direct responsibility of Subcommittee B05.93 on
cold-worked product having a single phase: to produce
Terminology.
softening by recrystallization or recrystallization and grain
Current edition approved Nov. 15, 2006. Published December 2006. Originally
growth, with the accompanying changes in properties.When
approved in 1993. Last previous edition approved in 2006 as B846 – 06. DOI:
10.1520/B0846-06A.
applied to a product having two or more phases: to produce
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
softening by changes in the phase relationship that may
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
include recrystallization and grain growth.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. annular ring—see circular ring.
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B846–06a
arbor—a cylindrical core around which metal is wound to blank—a piece of flat product intended for subsequent fabri-
obtain a desired inside diameter of the wound coil or roll. cation by forming, bending, cupping, drawing, hot pressing,
arc welding—a group of welding processes wherein coales- and so forth.
cence is produced by heating with an arc or arcs, with or blanking—the process of cutting metal blanks by a die and
without the application of pressure, and with or without the punch set in a press, or by sawing or shearing.
use of filler metal. Bourdon gauge tube—see tube, Bourdon gauge.
architectural bronze—an alloy containing nominally 57 % brass—any copper all
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