ASTM B881-98a
(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 B-7 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.
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Standards Content (Sample)
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Designation: B 881 – 98a
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 Bar, Rod, and Wire
B 221 Specification for Aluminum-Alloy Extruded Bars,
1.1 This terminology covers the principal terms and defini-
Rods, Wire, Shapes, and Tubes
tions relating to aluminum- and magnesium-alloy products. It
B 234 Specification for Aluminum and Aluminum-Alloy
is published to encourage uniformity of terminology through-
Drawn Seamless Tubes for Condensers and Heat Exchang-
out Committee B-7 product specifications.
ers
1.2 Certain definitions and definitions of terms specific to a
B 236 Specification for Aluminum Bars for Electrical Pur-
standard will remain in the individual standards and will not be
poses (Bus Bars)
included in this terminology. See 3.4.
B 241/B 241M Specification for Aluminum and
2. Referenced Documents Aluminum-Alloy Seamless Pipe and Seamless Extruded
Tube
2.1 ASTM Standards:
B 247 Specification for Aluminum and Aluminum-Alloy
B 26/B 26M Specification for Aluminum-Alloy Sand Cast-
Die Forgings, Hand Forgings, and Rolled Ring Forgings
ings
B 308/B 308M Specification for Aluminum Alloy 6061-T6
B 80 Specification for Magnesium-Alloy Sand Castings
Standard Structural Profiles
B 85 Specification for Aluminum-Alloy Die Castings
B 313/B 313M Specification for Aluminum and
B 90/B 90M Specification for Magnesium-Alloy Sheet and
Aluminum-Alloy Round Welded Tubes
Plate
B 316/B 316M Specification for Aluminum and
B 91 Specification for Magnesium-Alloy Forgings
Aluminum-Alloy Rivet and Cold Heading-Wire and Rods
B 92/B 92M Specification for Magnesium Ingot and Stick
B 317 Specification for Aluminum Alloy Extruded Bar,
for Remelting
Rod, Tube, Pipe, and Structural Profiles for Electrical
B 93/B 93M Specification for Magnesium Alloys in Ingot
Purposes (Bus Conductor)
Form for Sand Castings, Permanent Mold Castings, and
B 345/B 345M Specification for Aluminum and
Die Castings
Aluminum-Alloy Seamless Pipe and Seamless Extruded
B 94 Specification for Magnesium-Alloy Die Castings
Tube for Gas and Oil Transmission and Distribution Piping
B 107/B 107M Specification for Magnesium-Alloy Ex-
Systems
truded Bars, Rods, Shapes, Tubes, and Wire
B 361 Specification for Factory-Made Wrought Aluminum
B 108 Specification for Aluminum-Alloy Permanent Mold
and Aluminum-Alloy Welding Fittings
Castings
B 373 Specification for Aluminum Foil for Capacitors
B 179 Specification for Aluminum Alloys in Ingot and
B 403 Specification for Magnesium-Alloy Investment Cast-
Molten Forms for Castings from all Casting Processes
ings
B 199 Specification for Magnesium-Alloy Permanent Mold
B 404/B 404M Specification for Aluminum and
Castings
Aluminum-Alloy Seamless Condenser and Heat-
B 209 Specification for Aluminum and Aluminum-Alloy
Exchanger Tubes with Integral Fins
Sheet and Plate
B 429 Specification for Aluminum-Alloy Extruded Struc-
B 210 Specification for Aluminum and Aluminum-Alloy
tural Pipe and Tube
Drawn Seamless Tubes
B 479 Specification for Annealed Aluminum and
B 211 Specification for Aluminum and Aluminum-Alloy
Aluminum-Alloy Foil for Flexible Barrier, Food Contact,
and Other Applications
B 483/B 483M Specification for Aluminum and
This terminology is under the jurisdiction of ASTM Committee B07 on Light
Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on
Aluminum-Alloy Drawn Tubes for General Purpose Ap-
Aluminum Alloy Wrought Products.
plications
Current edition approved May 10, 1998. Published March 1999. Originally
published as B 881–98. Last previous edition B 881–98.
Annual Book of ASTM Standards, Vol 02.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 881
B 491/B 491M Specification for Aluminum and solidify. B 403, B 618
Aluminum-Alloy Extruded Round Tubes for General-
permanent mold casting, n—casting produced by introduc-
Purpose Applications
ing molten metal by gravity or low pressure into a mold
B 547/B 547M Specification for Aluminum and
constructed of durable material, usually iron or steel, and
Aluminum-Alloy Formed and Arc-Welded Round Tube
allowing it to solidify. B 108, B 199
B 594 Practice for Ultrasonic Inspection of Aluminum-
sand casting, n—casting produced by pouring molten metal
Alloy Wrought Products for Aerospace Applications
into a sand mold and allowing it to solidify. B 26, B 80
B 618 Specification for Aluminum-Alloy Investment Cast-
semi-permanent mold casting, n—permanent mold casting
ings
which is made using an expendable core such as sand.
B 632/B 632M Specification for Aluminum-Alloy Rolled
B 108, B 199
Thread Plate
circle, n—circular blank fabricated from plate, sheet, or foil.
B 666/B 666M Practice for Identification Marking of Alu-
B 666/B 666M
minum and Magnesium Products
extrusion billet, n—solid or hollow form, commonly cylindri-
B 736 Specification for Aluminum, Aluminum Alloy, and
cal, used as the final length of material charged into the
Aluminum-Clad Steel Cable Shielding Stock
extrusion press cylinder, and is usually a cast product, but
B 807 Practice for Extrusion Press Solution Heat Treatment
may be a wrought product or sintered from powder compact.
of Aluminum Alloys
B 807
extrusion ingot, n—solid or hollow cast form, usually cylin-
3. Terminology
drical, suitable for extruding. B 807
3.1 Definitions—The definitions are grouped by subject and
extrusion log, n—starting stock for extrusion billet. Extrusion
listed in alphabetical order.
log is usually produced in lengths from which shorter
Alclad, , adj—having an aluminum or aluminum-alloy coating
extrusion billets are cut. B 807
that is metallurgically bonded to either one side or both
foil, n—rolled wrought product, rectangular in cross section,
surfaces of an aluminum alloy product, and that is anodic to
and of thickness less than 0.006 in. [up through 0.15 mm].
the alloy to which it is bonded, thus electrolytically protect-
B 373, B 479, B 666/B 666M
ing the core alloy against corrosion. (See also individual
bright two-side foil, n—foil having a uniform bright specular
product type such as Alclad plate, Alclad sheet, etc.).
finish on both sides. B 373, B 479
B 209, B 210, B 211, B 221, B 234, B 241/B 241M, B 313/
matte one-side foil, n—foil having a diffuse reflecting finish
B 313M, B 345/B 345M, B 404/B 404M, B 547/B 547M
on one side and a bright specular finish on the other.
bar, n—solid wrought product that is long in relation to its
B 373, B 479
cross section, is square or rectangular with sharp or rounded
forging, n—metal part worked to a predetermined shape by
corners/edges (excluding plate and flattened wire), or is a
one or more processes such as hammering, upsetting, press-
regular hexagon or octagon, and in which at least one
ing, rolling, etc. B 91, B 247, B 666/B 666M
perpendicular distance between parallel faces is 0.375 in. or
blocker-type forging, n—forging made in a single set of
greater [over 10.00 mm]. B 107, B 211, B 221, B 236,
B 317, B 594, B 666/B 666M impressions to the general contour of a finished part.
B 247
bus bar, n— rigid electric conductor in the form of a bar.
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—bar brought to final dimensions by hot rolling.
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—cylindrical product of relatively short
casting, n—metal object, at or near dimensions shape, pro-
height, circumferentially rolled from a hollow section.
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
die casting, n—casting produced by introducing molten
suitable for forging. B 247
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, etc.) or remelting. B 92/B 92M, B 93/B 93M,
B 85, B 94
B 179, B 666/B 666M
investment casting, n—casting produced by surrounding
(investing) an expendable pattern (usually wax or plastic) mill finish, adj—having a nonuniform finish which may vary
with a refractory slurry that sets at room temperature, after from piece to piece and within a piece, and which may not
which the pattern is removed through the use of heat, and the be entirely free of stains or oil. See also mill finish sheet.
resultant cavity is filled with molten metal and allowed to B 209, B 632
B 881
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, B 313/
and wall thickness, commonly designated by “Nominal Pipe 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 having on both surfaces (if on one side
drawn pipe, n—pipe brought to final dimensions by drawing only, it is Alclad one-side sheet) a metallurgically bonded
through a die. B 241/B 241M, B 345
...
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