ASTM F1267-91(1997)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: F 1267 – 91 (Reapproved 1997) An American National Standard
Standard Specification for
Metal, Expanded, Steel
This standard is issued under the fixed designation F 1267; 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 MIL-STD-163 Steel Mill Products Preparation for Ship-
ment and Storage
1.1 This specification covers expanded metal for shipboard
use.
3. Classification
1.1.1 Expanded metal covered by this specification is in-
3.1 Expanded metal shall be of the following types, classes,
tended for partition bulkheads (nonstructural), top side stowage
and grades as specified (see 4.1.2).
baskets, floor gratings, and other uses.
3.2 Type:
1.2 The values stated in inch-pound units are to be regarded
3.2.1 Type I—Expanded (see Fig. 1).
as the standard. The values given in parentheses are for
3.2.2 Type II—Expanded and flattened (see Fig. 2).
information only and may be approximate.
3.3 Class:
1.3 The following precautionary caveat pertains only to the
3.3.1 Class 1—Uncoated.
test methods portion, Section 10, of this specification. This
3.3.2 Class 2—Hot-dip zinc-coated (galvanized).
standard does not purport to address all of the safety problems
3.3.3 Class 3—Corrosion-resisting steel.
associated with its use. It is the responsibility of the user of this
3.4 Grade:
standard to establish appropriate safety and health practices
3.4.1 Grade A—0.0025 in. (0.06 mm) minimum coating
and determine the applicability of regulatory limitations prior
thickness.
to use.
3.4.2 Grade B—0.0012 in. (0.03 mm) minimum coating
2. Referenced Documents thickness.
2.1 ASTM Standards:
4. Ordering Information
A 167 Specification for Stainless and Heat-Resisting
4.1 Orders for material under this specification shall include
Chromium-Nickel Steel Plate, Sheet, and Strip
the following information, as required, to describe the material
A 568 Specification for Steel, Sheet, Carbon and High-
adequately:
Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, Gen-
2 4.1.1 ASTM designation,
eral Requirements for
4.1.2 Type, class, and grade of steel required (see 3.1),
A 700 Practices for Packaging, Marking, and Loading
3 4.1.3 Material required (see 5.1),
Methods for Steel Products for Domestic Shipment
4.1.4 Direction of shear, if not as specified (see 5.2.1),
2.2 SAE Standard:
4.1.5 Length, width, and thickness of uncoated mesh, and
SAE J 1086 Metals and Alloys in the Unified Numbering
4 weight per square foot uncoated (see Tables 1-4),
System
5 4.1.6 Size of sheet required, if other than sizes specified in
2.3 Military Standards:
6.1,
MIL-C-16173 Corrosion Preventive Compound, Solvent
4.1.7 Whether or not sheets from which samples have been
Cutback, Cold-Application
selected for coating thickness test may be included as part of
MIL-STD-105 Sampling Procedures and Tables for Inspec-
material shipped (see 9.1.2), and
tion by Attributes
4.1.8 Optional requirements, if any (see Supplementary
Requirements S1 through S3).
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
5. Materials and Manufacture
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
A01.19 on Steel Sheet and Strip.
5.1 Expanded metal shall be made from carbon steel sheets
Current edition approved Feb. 22, 1991. Published July 1991. Originally
of Unified Numbering System (UNS) alloys G 10250 to G
published as F 1267 – 89. Last previous edition F 1267 – 89.
Annual Book of ASTM Standards, Vol 01.03. 10350 as specified in Specification A 568, or from corrosion-
Annual Book of ASTM Standards, Vol 01.05.
resisting sheet as specified in Specification A 167 (see 4.1.3).
Available from Society of Automotive Engineers, 400 Commonwealth Drive,
5.2 Expanded metal shall be manufactured from sheet steel
Warrendale, PA 15096.
Available from Standardization Documents, Order Desk, Building. 4, Section
D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
F 1267
TABLE 2 Carbon Steel Sizes, Strand Sizes, and Weight for Type
A
II, Class 1 Metal
Size of Mesh
B
Dimensions Center to Center Width of Weight
of Bonds Strand, in. per
Style (See Fig. Square
Designation 2(c)) Foot
Uncoated,
C
lb
Width, Length,
FIG. 1 Type I, Expanded
in. (See in. (See
Fig. 2(a)) Fig. 2(b))
⁄4 number 18 0.25 1.031 0.080 1.80
⁄2 number 40 0.462 1.26 0.065 0.38
⁄2 number 18 0.462 1.26 0.100 0.70
⁄2 number 16 0.462 1.26 0.089 0.80
⁄2 number 13 0.462 1.26 0.111 1.40
⁄4 number 16 0.850 2.12 0.110 0.55
⁄4 number 13 0.923 2.12 0.137 0.76
⁄4 number 9 0.923 2.12 0.157 1.71
1 number 16 1.05 2.562 0.106 0.41
1 ⁄2 number 16 1.33 3.20 0.127 0.38
1 ⁄2 number 13 1.33 3.20 0.130 0.57
1 ⁄2 number 9 1.33 3.20 0.165 1.14
A
1 in. = 25.4 mm; 1 lb = 0.454 kg.
B
A tolerance of 610 % is permitted in dimensions, center to center.
FIG. 2 Type II, Expanded and Flattened
C
A variation in weight per square foot of 65 % is permissible, based on the
weight of a bundle.
TABLE 1 Carbon Steel Sizes, Strand Sizes, and Weight for Type
A
I, Class 1 Metal
TABLE 3 Stainless Steel Styles, Weights, Dimensions, and
A
Sheet Sizes for Type I, Class 3 Metal
Size of Mesh
B
Dimensions Center to Center Width of Weight C
Weight per Size of Mesh
C
of Bonds Strand, in. per
Style Strand, in.
Square Foot,
Width, in. Length, in.
Style (See Fig. Square Designation B (See Fig. 1 (c))
lb
(See Fig. 1 (a)) (See Fig. 1 (b))
Designation 1(c)) Foot
Uncoated, 1
⁄2 No. 18 0.73 0.480 1.20 0.085
C
lb
⁄2 No. 16 0.91 0.480 1.20 0.085
⁄4 No. 18 0.47 0.900 2.00 0.100
Width, Length,
⁄4 No. 16 0.60 0.900 2.00 0.100
in. (See Fig. in. (See Fig.
⁄4 No. 13 0.91 0.900 2.00 0.100
1(a)) 1(b))
⁄4 No. 9 2.05 0.900 2.00 0.150
⁄2 number 18 0.48 1.2 0.084–0.092 (0.70–0.77)
1 ⁄2 No. 16 0.43 1.33 3.00 0.115
⁄4 number 13 0.92 2.0 0.090–0.100 0.80
1 ⁄2 No. 13 0.68 1.33 3.00 0.115
⁄4 number 10 0.92 2.0 0.136–0.150 1.20
1 ⁄2 No. 9 1.37 1.33 3.00 0.155
⁄4 number 9 0.92 2.0 0.136–0.150 1.80
A
1 lb = 0.454 kg; 1 in. = 25.4 mm.
1.33 5.33 0.259–0.269 3.00
B
A variation in weight per square foot of 65 % is permissible, based on the
3 pound grating 1.44 5.00 0.232–0.242 3.00
weight of any sheet or bundle.
4 pound grating 1.33 5.33 0.292–0.304 4.00
C
A tolerance of 610 % is permitted in dimensions.
1 ⁄2 number 13 1.33 3.0 0.100–0.116 0.60
1 ⁄2 number 10 1.33 3.0 0.130–0.142 0.79
1 ⁄2 number 9 1.33 3.0 0.130–0.142 1.20
opening shall be integral with adjoining openings by means of
1 ⁄2 number 6 1.33 3.0 0.195–0.210 2.50
4.27 pound 1.412 4.0 0.292–0.304 4.27
unsheared bonds (see Fig. 1 and Fig. 2) of the original sheet.
grating
3.14 pound 2.00 6.00 0.305–0.317 3.14
6. Dimensions, Mass, and Permissible Variations
grating
A
6.1 Unless otherwise specified (see 4.1.6), Type I expanded
1 in. = 25.4 mm; 1 lb = 0.454 kg.
B
A tolerance of 610 % is permitted in dimensions, center to center.
metal shall be furnished in sheets 6 ft (1.8 m) wide by 8 ft (2.4
C
A variation in weight per square foot of 65 % is permissible, based on the
m) long, and Type II, flattened, expanded metal shall be
weight of any sheet or bundle.
furnished in sheets 4 ft (1.2 m) wide by 8 ft (2.4 m) long.
6.2 Types I and II expanded metal shall be furnished in
in thicknesses corresponding to Tables 1-4 as specified (see accordance with the weights and dimensions as specified in
4.1.5). Tables 1-4, respectively.
5.2.1 Unless otherwise specified (see 4.1.4), the steel shall 6.3 Tolerances for Type I sheets:
be sheared so that each sheet will be expanded into uniform 6.3.1 Strand width shall not vary in excess of 610 % of the
diamond-shaped openings, the longer diagonals of which shall nominal width.
be parallel to the rolling direction of the sheet. The strands (c 6.3.2 Sheet width shall be not less than ⁄4 in. (6 mm) below
on Fig. 1 and Fig. 2) that form the sides of the openings shall ordered width and shall not exceed ⁄8 in./ft of sheet width (10
be straight and shall be rectangular in cross-section. Each mm/m of sheet width).
F 1267
TABLE 4 Stainless Steel Styles, Weights, Dimensions, and
and thickness and shall be smooth and free from sharp edges.
A
Sheet Sizes for Type II, Class 3 Metal
Broken strands, weld-repaired strands, laminations, irregular-
shaped openings, and any other defects that may affect service-
C
Weight per Size of Mesh
C
ability shall not be acceptable.
Style Strand, in.
Square Foot,
Width, in. Length, in.
B
Designation (See Fig. 2 (c))
7.1.2 Expanded metal shall be free from burrs and slivers.
lb
(See Fig. 2 (a)) (See Fig. 2 (b))
Type II expanded metal shall be deburred prior to zinc coating.
⁄2 No. 18 0.70 0.475 1.24 0.100
7.1.3 Type II flattened, expanded metal shall have the
⁄2 No. 16 0.90 0.475 1.24 0.100
⁄4 No. 18 0.46 0.900 2.100 0.118 strands and bonds in the same plane as a result of passing
⁄4 No. 16 0.57 0.900 2.100 0.118
through flattening rolls.
⁄4 No. 13 0.88 0.900 2.100 0.118
7.2 Zinc coating:
⁄4 No. 9 1.96 0.900 2.100 0.165
1 ⁄2 No. 16 0.42 1.330 3.100 0.130
7.2.1 Only carbon steels shall be zinc coated.
1 ⁄2 No. 13 0.66 1.330 3.100 0.130
7.2.2 Class 2 expanded metal shall be completely and
1 ⁄2 No. 9 1.32 1.330 3.100 0.165
uniformly zinc coated by the hot-dip process, after shearing,
A
1 lb = 0.454 kg; 1 in. = 25.4 mm.
expanding, and deburring, shall be free from excessive accu-
B
A variation in weight per square foot of 65 % is permissible, based on the
weight of any sheet or bundle. mulations of zinc in the apexes of diamond openings, and shall
C
A tolerance of 610 % is permitted in dimensions.
be free from bare spots.
7.2.3 The zinc coated surface of the metal shall be uni-
6.3.3 Sheet length on 96-in. (2.4-m) length sheets shall not
formly smooth and free from dross, flux, and oxide residue or
vary by an amount greater than plus ⁄4 in. (19 mm) or minus
other discoloration producing material (see 10.2).
0 in.
7.2.3.1 Yellow discoloration produced by sal ammoniac
6.3.4 The greatest deviation of a side edge from a straight
fumes shall not be cause for rejection.
line shall not exceed ⁄4 in. (6 mm) in 96 in. (2.4 m).
7.2.3.2 Zinc “feathers’’ that may be removed as the result of
6.3.5 Sheet edges shall not deviate from parallel by more
normal handling, which does not result in exposure of the basis
than ⁄8 in. (10 mm) in 96 in. (2.4 m).
metal, shall not be cause for rejection.
6.3.6 Sheet edges shall be such that any intersecting side
7.2.4 Paint or paint-like material shall not be used to coat
and edge shall not be out of square in excess of ⁄8 in./ft (10
bare areas. Unless approved for each individual contract or
mm/m).
order by the purchaser, heat-applied galvanizing repair com-
6.3.7 Sheets shall be free from waves or buckles that are in
pounds shall not be used to cover bare areas.
excess of ⁄4 in. (19 mm) from a plane surface.
7.2.5 The thickness of the coating shall be 0.0025 in. (0.06
6.3.8 Each sheet shall have at least one end with closed
mm) minimum for Grade A expanded metal and 0.0012 in.
diamond openings and full length bonds.
(0.03 mm) minimum for Grade B expanded metal on all
6.4 Tolerances for Type II sheets:
surfaces except at the edges (corners) of the strands when
6.4.1 Strand width shall not vary in excess of 610 % of the
tested as specified in 10.2.
nominal width.
7.2.6 The requirements for thickness of coating using the
6.4.2 Sheet thickness after flattening shall not be greater
microscopic test method specified in 10.3 shall be 0.0025 in.
than 90 % and not less than 80 % of the nominal gage thickness
(0.06 mm) minimum average thickness for Grade A expanded
specified for the steel sheet.
metal and 0.0012 in. (0.03 mm) minimum average thickness
6.4.3 Sheet width after flattening shall not be less than ⁄4 in.
for Grade B expanded metal.
(6 mm) below nominal width and shall not exceed ⁄8in./ft (10
mm/m) of nominal width.
8. Sampling
6.4.4 Sheet length after flattening shall not vary from the
8.1 Expanded metal sheets of the same material, type, class,
nominal length by an amount greater than plus ⁄4 in. (6 mm) or
grade and dimensions, and manufactured under essentially the
minus 0 in.
same conditions, shall be considered a lot for purposes of
6.4.5 The greatest deviation of a side edge from a straight
acceptance inspection and tests.
line after flattening shall not exceed ⁄4 in. (6 mm) in 96 in. (2.4
8.2 Sampling for Coating Thickness Test—A random
m).
sample of expanded metal sheets shall be selected from each
6.4.6 Sheet edges shall not deviate from parallel by more
inspection lot (see 8.1) of Class 2 material, in accordance with
than ⁄8 in. (10 mm) in 96 in. (2.4 m).
Table 5, and subjected to the zinc-coating thickness test
6.4.7 Ends of sheets, after shearing, shall not be more than
specified in 10.2 and 10.3.
⁄16 in./ft (5 mm/m) out of square, in relation to the side of the
sheet used to gage the shearing.
6.4.8 Sheets shall be free from waves or buckles that are in
TABLE 5 Sampling for Lot Acceptance
excess of ⁄8 in. (10 mm) from a plane surface.
6.4.9 After flattening, each sheet shall be sheared on one
Number of Expanded Metal Sheets Number of Expanded Metal
in Inspection Lot Sheets for Test
end as close as practicable to the centerline of a row of bonds.
40 or under 1
7. Workmanship, Finish, and Appearance 41 to 300 2
301 to 1300 3
7.1 Workmanship:
1301 and over 4
7.1.1 The strands shall be substantially uniform in width
F 1267
9. Specimen Preparation micrometer calipers of which the spindle and anvil are flat or
conical in shape and the ends are ground to ⁄16 in. (2 mm)
9.1 Coating Thickness Test Specimens— Three test speci-
maximum radius.
mens in the form of single strands having a length of one or
10.2.3.1 If the zinc coating particle is not of sufficient size to
more sides of diamond openings shall be selected from each
permit four measurements, an additional particle may be
sample sheet at or near diagonally opposite corners and at the
removed from the strand in the same area and the thickness
center of the sheet.
determined.
9.1.1 The specimen strands shall be selected on the basis of
10.2.4 If all measurements on each sample specimen con-
visual appearance to represent the minimum coating thickness
form to the minimum thickness requirement for the particular
in the specified location.
grade represented, the lot shall be considered satisfactory.
9.1.2 When spec
...