ASTM B881-98a(2004)
(Terminology)Standard Terminology Relating to Aluminum- and Magnesium- Alloy Products
Standard Terminology Relating to Aluminum- and Magnesium- Alloy Products
SCOPE
1.1 This terminology covers the principal terms and definitions relating to aluminum- and magnesium- alloy products. It is published to encourage uniformity of terminology throughout Committee B07 product specifications.
1.2 Certain definitions and definitions of terms specific to a standard will remain in the individual standards and will not be included in this terminology. See 3.4.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: B 881 – 98a (Reapproved 2004)
Standard Terminology Relating to
Aluminum- and Magnesium-Alloy Products
This standard is issued under the fixed designation B 881; 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 B 210 Specification for Aluminum and Aluminum-Alloy
Drawn Seamless Tubes
1.1 This terminology covers the principal terms and defini-
B 211 Specification for Aluminum and Aluminum-Alloy
tions relating to aluminum- and magnesium-alloy products. It
Bar, Rod, and Wire
is published to encourage uniformity of terminology through-
B 221 Specification for Aluminum-Alloy Extruded Bars,
out Committee B07 product specifications.
Rods, Wire, Shapes, and Tubes
1.2 Certain definitions and definitions of terms specific to a
B 234 Specification for Aluminum and Aluminum-Alloy
standard will remain in the individual standards and will not be
Drawn SeamlessTubes for Condensers and Heat Exchang-
included in this terminology (see 3.4).
ers
2. Referenced Documents B 236 Specification for Aluminum Bars for Electrical Pur-
poses (Bus Bars)
2.1 ASTM Standards:
B 241/B 241M Specification for Aluminum and
B 26/B 26M Specification forAluminum-Alloy Sand Cast-
Aluminum-Alloy Seamless Pipe and Seamless Extruded
ings
Tube
B 80 Specification for Magnesium-Alloy Sand Castings
B 247 Specification for Aluminum and Aluminum-Alloy
B 85 Specification for Aluminum-Alloy Die Castings
Die Forgings, Hand Forgings, and Rolled Ring Forgings
B 90/B 90M Specification for Magnesium-Alloy Sheet and
B 308/B 308M Specification forAluminumAlloy 6061-T6
Plate
Standard Structural Profiles
B 91 Specification for Magnesium-Alloy Forgings
B 313/B 313M Specification for Aluminum and
B 92/B 92M Specification for Magnesium Ingot and Stick
Aluminum-Alloy Round Welded Tubes
for Remelting
B 316/B 316M Specification for Aluminum and
B 93/B 93M Specification for Magnesium Alloys in Ingot
Aluminum-Alloy Rivet and Cold Heading-Wire and Rods
Form for Sand Castings, Permanent Mold Castings, and
B 317 Specification for Aluminum Alloy Extruded Bar,
Die Castings
Rod, Tube, Pipe, and Structural Profiles for Electrical
B 94 Specification for Magnesium-Alloy Die Castings
Purposes (Bus Conductor)
B 107/B 107M Specification for Magnesium-Alloy Ex-
B 345/B 345M Specification for Aluminum and
truded Bars, Rods, Shapes, Tubes, and Wire
Aluminum-Alloy Seamless Pipe and Seamless Extruded
B 108 Specification for Aluminum-Alloy Permanent Mold
TubeforGasandOilTransmissionandDistributionPiping
Castings
Systems
B 179 Specification for Aluminum Alloys in Ingot and
B 361 Specification for Factory-Made Wrought Aluminum
Molten Forms for Castings from all Casting Processes
and Aluminum-Alloy Welding Fittings
B 199 Specification for Magnesium-Alloy Permanent Mold
B 373 Specification for Aluminum Foil for Capacitors
Castings
B 403 Specification for Magnesium-Alloy Investment Cast-
B 209 Specification for Aluminum and Aluminum-Alloy
ings
Sheet and Plate
B 404/B 404M Specification for Aluminum and
Aluminum-Alloy Seamless Condenser and Heat-
This terminology is under the jurisdiction of ASTM Committee B07 on Light
Exchanger Tubes with Integral Fins
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on
B 429 Specification for Aluminum-Alloy Extruded Struc-
Aluminum Alloy Wrought Products.
tural Pipe and Tube
Current edition approved April 1, 2004. Published April 2004. Originally
approved in 1998. Last previous edition approved in 1998 as B 881 – 98.
B 479 Specification for Annealed Aluminum and
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Aluminum-Alloy Foil for Flexible Barrier, Food Contact,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and Other Applications
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 881 – 98a (2004)
B 483/B 483M Specification for Aluminum and investment casting, n—casting produced by surrounding
Aluminum-Alloy Drawn Tubes for General Purpose Ap- (investing) an expendable pattern (usually wax or plastic)
plications with a refractory slurry that sets at room temperature, after
B 491/B 491M Specification for Aluminum and which the pattern is removed through the use of heat, and the
resultant cavity is filled with molten metal and allowed to
Aluminum-Alloy Extruded Round Tubes for General-
Purpose Applications solidify. B 403, B 618
B 547/B 547M Specification for Aluminum and permanent mold casting, n—casting produced by introduc-
ing molten metal by gravity or low pressure into a mold
Aluminum-Alloy Formed and Arc-Welded Round Tube
constructed of durable material, usually iron or steel, and
B 594 Practice for Ultrasonic Inspection of Aluminum-
allowing it to solidify. B 108, B 199
Alloy Wrought Products for Aerospace Applications
sand casting, n—casting produced by pouring molten metal
B 618 Specification for Aluminum-Alloy Investment Cast-
into a sand mold and allowing it to solidify. B 26/B 26M,
ings
B80
B 632/B 632M Specification for Aluminum-Alloy Rolled
semi-permanent mold casting, n—permanent mold casting
Thread Plate
which is made using an expendable core such as sand.
B 666/B 666M Practice for Identification Marking of Alu-
B 108, B 199
minum and Magnesium Products
circle, n—circular blank fabricated from plate, sheet, or foil.
B 736 Specification for Aluminum, Aluminum Alloy, and
B 666/B 666M
Aluminum-Clad Steel Cable Shielding Stock
extrusion billet, n—solid or hollow form, commonly cylindri-
B 807 Practice for Extrusion Press Solution Heat Treatment
cal, used as the final length of material charged into the
of Aluminum Alloys
extrusion press cylinder, and is usually a cast product, but
may be a wrought product or sintered from powder compact.
3. Terminology
B 807
3.1 Definitions—The definitions are grouped by subject and
extrusion ingot, n—solid or hollow cast form, usually cylin-
listed in alphabetical order.
drical, suitable for extruding. B 807
Alclad, adj—having an aluminum or aluminum-alloy coating extrusion log, n—starting stock for extrusion billet. Extrusion
log is usually produced in lengths from which shorter
that is metallurgically bonded to either one side or both
surfaces of an aluminum alloy product, and that is anodic to extrusion billets are cut. B 807
the alloy to which it is bonded, thus electrolytically protect- foil, n—rolled wrought product, rectangular in cross section,
ing the core alloy against corrosion. (See also individual and of thickness less than 0.006 in. [up through 0.15 mm].
product type such as Alclad plate, Alclad sheet, and so B 373, B 479, B 666/B 666M
forth). B 209, B 210, B 211, B 221, B 234, B 241/B 241M,
bright two-side foil, n—foilhavingauniformbrightspecular
B 313/B 313M, B 345/B 345M, B 404/B 404M, B 547/ finish on both sides. B 373, B 479
B 547M
matte one-side foil, n—foil having a diffuse reflecting finish
bar, n—solid wrought product that is long in relation to its on one side and a bright specular finish on the other.
cross section, is square or rectangular with sharp or rounded B 373, B 479
corners/edges (excluding plate and flattened wire), or is a
forging, n—metal part worked to a predetermined shape by
regular hexagon or octagon, and in which at least one one or more processes such as hammering, upsetting, press-
perpendicular distance between parallel faces is 0.375 in. or
ing, rolling, and so forth. B 91, B 247, B 666/B 666M
greater [over 10.00 mm]. B 107/B 107M, B 211, B 221,
blocker-type forging, n—forging made in a single set of
B 236, B 317, B 594, B 666/B 666M
impressions to the general contour of a finished part.
bus bar, n— rigid electric conductor in the form of a bar.
B 247
B 236, B 317, B 666/B 666M
die forging, n—forging formed to the required shape and
extruded bar, n—bar brought to final dimensions by hot size by working in impression dies. B 91, B 247, B 594,
extruding. B 107/B 107M, B 221, B 236, B 317
B 666/B 666M
rolled bar, n—barbroughttofinaldimensionsbyhotrolling. hammer forging, n—forging produced by repeated blows of
B 211, B 236
a forging hammer. B91
saw-plate bar, n—bar brought to final thickness by hot or
hand forging, n—forging, manually-manipulated, which is
cold rolling and to final width by sawing. B 236 worked, through repeated strokes or blows, between flat or
bus conductor, n—rigid electric conductor of any cross simply shaped dies. B 247, B 594, B 666/B 666M
section. B 236, B 317
rolled ring forging, n—cylindricalproductofrelativelyshort
height, circumferentially rolled from a hollow section.
casting, n—metal object, at or near dimensions shape, pro-
duced by introducing molten metal into a mold or a die and B 247, B 594
allowing it to solidify. B 666/B 666M
forging stock, n—wrought or cast rod, bar, or other section
suitable for forging. B 247
die casting, n—casting produced by introducing molten
metal under substantial pressure into a metal die and ingot, n—cast form suitable for fabricating (rolling, forging,
characterized by a high degree of fidelity to the die cavity. extruding, and so forth) or remelting. B 92/B 92M, B 93/
B 85, B 94 B 93M, B 179, B 666/B 666M
B 881 – 98a (2004)
mill finish, adj—having a nonuniform finish which may vary rivets. B 316/B 316M
from piece to piece and within a piece, and which may not extruded rod, n—rod produced by hot extruding. B 107/
be entirely free of stains or oil. See also mill finish sheet. B 107M, B 221, B 317
B 209, B 632/B 632M rivet rod, n—See cold-heading rod. B 316/B 316M
parent coil or plate, n—coil of sheet or a plate that has been
shape, n—this term is no longer recommended; the term
processed to final temper as a single unit and may subse-
profile is preferred.
quently be cut into two or more smaller coils or into
sheet, n—rolled wrought product that is rectangular in cross
individual sheets or smaller plates to provide the required
section, with thickness 0.006 in. and greater [over 0.15 mm]
width and length. B 209
but less than 0.250 in. [up through 6.30 mm], and with
pipe, n—tube in standardized combination of outside diameter
sheared, slit, or sawed edges. B 90/B 90M, B 209,
and wall thickness, commonly designated by “Nominal Pipe
B 313/B 313M, B 547/B 547M, B 666/B 666M
Sizes” and “ANSI Schedule Numbers.” B 241/B 241M,
Alclad sheet, n—composite sheet product comprised of an
B 317, B 345/B 345M, B 429, B 666/B 666M
aluminum-alloy core h
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