ASTM E454-12(2021)
(Specification)Standard Specification for Industrial Perforated Plate and Screens (Square Opening Series)
Standard Specification for Industrial Perforated Plate and Screens (Square Opening Series)
ABSTRACT
This specification covers the various sizes of square opening perforated plates and screens for general industrial uses, including the separating or grading of materials according to designated nominal particle size, and lists standards for openings punched with various bar sizes and thicknesses of plate for various grades of service. This specification does not apply to perforated plate or screens with round, hexagon, slotted, or other shaped openings.
SCOPE
1.1 This specification covers the sizes of square opening perforated plate and screens for general industrial uses, including the separating or grading of materials according to designated nominal particle size, and lists standards for openings from 5 in. (125 mm) to 0.127 (1/8 ) in. (3.35 mm) punched with bar sizes and thicknesses of plate for various grades of service. Methods of checking industrial perforated plate and screens are included as information in Annex A3.
1.2 This specification does not apply to perforated plate or screens with round, hexagon, slotted, or other shaped openings.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:E454 −12 (Reapproved 2021)
Standard Specification for
Industrial Perforated Plate and Screens (Square Opening
Series)
This standard is issued under the fixed designation E454; 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.
INTRODUCTION
Industrial perforated plate can be produced in many thousands of combinations of size and shape
of opening, bar size, thickness of material, and type of metal. Such variety is often confusing and, to
the vast majority of perforated plate users, unnecessary, since each usually requires only a very few
specifications.
The purpose of this specification is to simplify this problem by a condensed table of recommended
specifications covering a wide range of openings in which industrial perforated plate is made, with
several recommended bar sizes and thicknesses of plate for each opening, for use in various grades of
service.
By making selections from this standard, the user will be guided to specifications that are being
regularly produced, thus avoiding inadvertent selection of specifications that, because of little or no
demand,areunobtainable,exceptonspecialorder(usuallyquiteexpensiveunlessthequantityordered
is sufficient to justify the cost of special tooling).
Ifauserhasaspecificapplicationforindustrialperforatedplatethatcannotbesolvedbyaselection
from this standard, it is recommended that he consult his perforated plate supplier on the availability
of an acceptable alternative specification.
1. Scope 1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This specification covers the sizes of square opening
responsibility of the user of this standard to establish appro-
perforated plate and screens for general industrial uses, includ-
priate safety, health, and environmental practices and deter-
ing the separating or grading of materials according to desig-
mine the applicability of regulatory limitations prior to use.
nated nominal particle size, and lists standards for openings
1.5 This international standard was developed in accor-
from 5 in. (125 mm) to 0.127 ( ⁄8) in. (3.35 mm) punched with
dance with internationally recognized principles on standard-
bar sizes and thicknesses of plate for various grades of service.
ization established in the Decision on Principles for the
Methodsofcheckingindustrialperforatedplateandscreensare
Development of International Standards, Guides and Recom-
included as information in Annex A3.
mendations issued by the World Trade Organization Technical
1.2 This specification does not apply to perforated plate or
Barriers to Trade (TBT) Committee.
screenswithround,hexagon,slotted,orothershapedopenings.
2. Referenced Documents
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical 2.1 ASTM Standards:
conversions to SI units that are provided for information only E323 Specification for Perforated-Plate Sieves for Testing
and are not considered standard. Purposes
E1638 Terminology Relating to Sieves, Sieving Methods,
and Screening Media
ThisspecificationisunderthejurisdictionofASTMCommitteeE29onParticle
and Spray Characterization and is the direct responsibility of Subcommittee E29.01
on Sieves, Sieving Methods, and Screening Media. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2021. Published October 2021. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1972. Last previous edition approved in 2016 as E454 – 12 (2016). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/E0454-12R21. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E454−12 (2021)
FIG. 1Unfinished End Pattern Finished End Pattern
2.2 ISO Standards: 3.2.10 percent open area, n—theratioofthetotalareaofthe
ISO 2194 Industrial screens —Woven wire cloth, perforated apertures to the total area expressed in percentage.
plate and electroformed sheet — Designation and nominal
3.2.11 perforated pattern, n—the patterns that the perfora-
sizes of openings
tions are arranged in, usually in a staggered pattern with
2.3 Other Documents:
midpoints nominally at the vertices of isosceles triangles or
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
square patterns arranged in line with their midpoints nominally
Mil-Std-129 Marking for Shipment and Storage
at the vertices of squares.
3.2.12 screen, n—(1) surface provided with apertures of
3. Terminology
uniform size and shape; (2) another term used interchangeably
3.1 Definitions:
for woven wire cloth; (3) machine provided with one or more
3.1.1 For general terms related to sieves, sieving methods,
screen surfaces.
and screening media, see Terminology E1638.
3.2.13 screening, v—process of separating a mixture of
3.2 Definitions of Terms Specific to This Standard:
different sizes by means of one or more screen surfaces.
3.2.1 aperture, n—the opening in a screening or sieving
3.2.14 smooth side or punch side, n—surface of the plate
medium.
that was uppermost during the punching operation and through
3.2.2 bar, n—the metal between perforations.
which the punch entered the plate.
3.2.3 blank, n—unperforated area located other than along
3.2.15 unfinished end pattern, n—condition that occurs with
the perimeter of a plate.
some specifications of staggered pattern perforations as a result
3.2.4 break-out, n—term applied to the action that occurs
of tool design.
ahead of the punch in its going through the plate.
3.2.15.1 Discussion—On one end of the plate, the pattern
3.2.4.1 Discussion—The fracturing of the material results in
will appear to be incomplete as a result of unperforated holes
a tapered hole with the small dimensions on the punch side.
in the even numbered rows, while on the other end of the same
3.2.5 centers, n—dimensional sum of one perforation and
plate, the pattern will appear to be incomplete because of
one bar or the dimensional distance from the center of one
unperforated holes in the odd numbered rows (Fig. 1).
perforation to the center of an adjacent perforation.
4. Standard Specifications
3.2.6 die side, n—surface of the plate that was against the
4.1 Standard specifications for industrial perforated plate
die during the punching operation.
and screens are listed in Table 1.
3.2.7 finished end pattern, n—condition that occurs with
4.2 Openings—The series of standard openings listed in
some specifications of staggered pattern perforations as a result
Table 1 include those of the USA Standard Sieve Series,
of tool design in which the pattern is completed on both ends
Specification E323, and those of the ISO apertures for indus-
of the plate (Fig. 1).
trial plate screens, ISO 2194, with the addition of those
3.2.8 gage (also gauge) , n—anumberdesignatingaspecific
openings in common usage.
thicknessofmetalsheettabulatedinastandardizedseries,each
4.3 Relationship of Grades—The purpose of the several
of which represents a decimal fraction of an inch.
grades is to provide combinations of opening and bar size for
3.2.9 margin or border , n—unperforated area located along
various types of service, from medium-light to heavy. Since it
the perimeter of a plate.
is possible to vary the bar size independently from the plate
thickness, each of the service grades lists up to three combi-
Available from International Organization for Standardization (ISO), 1, ch. de
nations of bar and gage for each opening. The entire standard
la Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzerland, http://
series has been designed for a logical relationship of bar size to
www.iso.ch.
4 opening in each grade and between grades with the capability
Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
Philadelphia, PA 19111-5094, http://quicksearch.dla.mil. of also being able to vary the plate thickness.
E454−12 (2021)
TABLE 1 USA Standard Specifications for Industrial Perforated Plate and Screens (Square Opening Series)—(U.S. Customary Units)
Perforated Opening Medium Light Medium Medium Heavy Heavy
USA In-
Standard Gage- Open Gage- Open Gage- Open Gage- Open
dustrial Open- Bar, Open- Bar, Open- Bar, Open- Bar,
(metric), Steel, Area, Steel, Area, Steel, Area, Steel, Area,
Standard, ing, in. in. ing, in. in. ing, in. in. ing, in. in.
mm in. percent in. percent in. percent in. percent
in.
1 1 5 5 3 3
125 5 5 ⁄2 ⁄2 82.6 5 ⁄8 ⁄8 79.0 5 ⁄4 ⁄4 75.6 5 1 1 69.4
5 5 3 1 7 5 1 7
125 5 5 ⁄8 ⁄8 79.0 5 ⁄4 ⁄2 75.6 5 ⁄8 ⁄8 72.4 5 1 ⁄8 ⁄8 66.6
5 1 3 5 7 3 1
125 5 5 ⁄8 ⁄2 79.0 5 ⁄4 ⁄8 75.6 5 ⁄8 ⁄4 72.4 5 1 ⁄8 1 66.6
1 1 1 1 5 5 1 3 3 1
... ... 4 ⁄2 ⁄2 ⁄2 81.0 4 ⁄2 ⁄8 ⁄8 77.1 4 ⁄2 ⁄4 ⁄4 73.4 4 ⁄2 1 1 66.9
1 5 3 1 3 1 1 7 5 1 1 7
... ... 4 ⁄2 ⁄8 ⁄8 77.1 4 ⁄2 ⁄4 ⁄2 73.4 4 ⁄2 ⁄8 ⁄8 70.1 4 ⁄2 1 ⁄8 ⁄8 64.0
1 5 1 1 3 5 1 7 3 1 1
... ... 4 ⁄2 ⁄8 ⁄2 77.1 4 ⁄2 ⁄4 ⁄8 73.4 4 ⁄2 ⁄8 ⁄4 70.1 4 ⁄2 1 ⁄8 1 64.0
1 1 1 1 1 5 5 1 3 3 1
106 4 ⁄4 4 ⁄4 ⁄2 ⁄2 80.1 4 ⁄4 ⁄8 ⁄8 76.0 4 ⁄4 ⁄4 ⁄4 72.3 4 ⁄4 1 1 65.5
1 1 5 3 1 3 1 1 7 5 1 1 7
106 4 ⁄4 4 ⁄4 ⁄8 ⁄8 76.0 4 ⁄4 ⁄4 ⁄2 72.3 4 ⁄4 ⁄8 ⁄8 68.8 4 ⁄4 1 ⁄8 ⁄8 62.5
1 1 5 1 1 3 5 1 7 3 1 1
106 4 ⁄4 4 ⁄4 ⁄8 ⁄2 76.0 4 ⁄4 ⁄4 ⁄8 72.3 4 ⁄4 ⁄8 ⁄4 68.8 4 ⁄4 1 ⁄8 1 62.5
1 1 5 5 3 3
100 4 4 ⁄2 ⁄2 79.0 4 ⁄8 ⁄8 74.8 4 ⁄4 ⁄4 70.9 4 1 1 64.0
5 3 3 1 7 5 1 7
100 4 4 ⁄8 ⁄8 74.8 4 ⁄4 ⁄2 70.9 4 ⁄8 ⁄8 67.3 4 1 ⁄8 ⁄8 60.9
5 1 3 5 7 3 1
100 4 4 ⁄8 ⁄2 74.8 4 ⁄4 ⁄8 70.9 4 ⁄8 ⁄4 67.3 4 1 ⁄8 1 60.9
3 1 1 3 5 5 3 3 3 3 7 7
... ... 3 ⁄4 ⁄2 ⁄2 77.9 3 ⁄4 ⁄8 ⁄8 73.5 3 ⁄4 ⁄4 ⁄4 69.4 3 ⁄4 ⁄8 ⁄8 65.7
3 5 3 3 3 1 3 7 5 3 3
... ... 3 ⁄4 ⁄8 ⁄8 73.5 3 ⁄4 ⁄4 ⁄2 69.4 3 ⁄4 ⁄8 ⁄8 65.7 3 ⁄4 1 ⁄4 62.3
3 5 1 3 3 5 3 7 3 3 7
... ... 3 ⁄4 ⁄8 ⁄2 73.5 3 ⁄4 ⁄4 ⁄8 69.4 3 ⁄4 ⁄8 ⁄4 65.7 3 ⁄4 1 ⁄8 62.3
1 1 1 1 1 5 5 1 3 3 1 7 7
90 3 ⁄2 3 ⁄2 ⁄2 ⁄2 76.6 3 ⁄2 ⁄8 ⁄8 72.0 3 ⁄2 ⁄4 ⁄4 67.8 3 ⁄2 ⁄8 ⁄8 64.0
1 1 5 3 1 3 1 1 7 5 1 3
90 3 ⁄2 3 ⁄2 ⁄8 ⁄8 72.0 3 ⁄2 ⁄4 ⁄2 67.8 3 ⁄2 ⁄8 ⁄8 64.0 3 ⁄2 1 ⁄4 60.5
1 1 5 1 1 3 5 1 7 3 1 7
90 3 ⁄2 3 ⁄2 ⁄8 ⁄2 72.0 3 ⁄2 ⁄4 ⁄8 67.8 3 ⁄2 ⁄8 ⁄4 64.0 3 ⁄2 1 ⁄8 60.5
1 3 3 1 1 1 1 5 5 1 3 3
... ... 3 ⁄4 ⁄8 ⁄8 80.4 3 ⁄4 ⁄2 ⁄2 75.1 3 ⁄4 ⁄8 ⁄8 70.3 3 ⁄4 ⁄4 ⁄4 66.0
1 1 5 1 5 3 1 3 1 1 7 5
... ... 3 ⁄4 ⁄2 ⁄16 75.1 3 ⁄4 ⁄8 ⁄8 70.3 3 ⁄4 ⁄4 ⁄2 66.0 3 ⁄4 ⁄8 ⁄8 62.1
1 1 3 1 5 1 1 3 5 1 7 3
... ... 3 ⁄4 ⁄2 ⁄8 75.1 3 ⁄4 ⁄8 ⁄2 70.3 3 ⁄4 ⁄4 ⁄8 66.0 3 ⁄4 ⁄8 ⁄4 62.1
3 3 1 1 5 5 3 3
75 3 3 ⁄8 ⁄8 79.0 3 ⁄2 ⁄2 73.5 3 ⁄8 ⁄8 68.5 3 ⁄4 ⁄4 64.0
1 5 5 3 3 1 7 5
75 3 3 ⁄2 ⁄16 73.5 3 ⁄8 ⁄8 68.5 3 ⁄4 ⁄2 64.0 3 ⁄8 ⁄8 59.9
1 3 5 1 3 5 7 3
75 3 3 ⁄2 ⁄8 73.5 3 ⁄8 ⁄2 68.5 3 ⁄4 ⁄8 64.0 3 ⁄8 ⁄4 59.9
3 3 3 3 1 1 3 5 5 3 3 3
... ... 2 ⁄4 ⁄8 ⁄8 77.4 2 ⁄4 ⁄2 ⁄2 71.6 2 ⁄4 ⁄8 ⁄8 66.4 2 ⁄4 ⁄4 ⁄4 61.7
3 1 5 3 5 3 3 3 1 3 7 5
... ... 2 ⁄4 ⁄2 ⁄16 71.6 2 ⁄4 ⁄8 ⁄8 66.4 2 ⁄4 ⁄4 ⁄2 61.7 2 ⁄4 ⁄8 ⁄8 57.6
3 1 3 3 5 1 3 3 5 3 7 3
... ... 2 ⁄4 ⁄2 ⁄8 71.6 2 ⁄4 ⁄8 ⁄2 66.4 2 ⁄4 ⁄4 ⁄8 61.7 2 ⁄4 ⁄8 ⁄4 57.6
1 1 3 3 1 1 1 1 5 5 1 3 3
63 2 ⁄2 2 ⁄2 ⁄8 ⁄8 75.6 2 ⁄2 ⁄2 ⁄2 69.4 2 ⁄2 ⁄8 ⁄8 64.0 2 ⁄2 ⁄4 ⁄4 59.2
1 1 1 5 1 5 3 1 3 1 1 7 5
63 2 ⁄2 2 ⁄2 ⁄2 ⁄16 69.4 2 ⁄2 ⁄8 ⁄8 64.0 2 ⁄2 ⁄4 ⁄2 59.2 2 ⁄2 ⁄8 ⁄8 54.9
1 1 1 3 1 5 1 1 3 5 1 7 3
63 2 ⁄2 2 ⁄2 ⁄2 ⁄8 69.4 2 ⁄2 ⁄8 ⁄2 64.0 2 ⁄2 ⁄4 ⁄8 59.2 2 ⁄2 ⁄8 ⁄4 54.9
1 3 3 1 1 1 1 5 5 1 3 3
... ... 2 ⁄4 ⁄8 ⁄8 73.5 2 ⁄4 ⁄2 ⁄2 66.9 2 ⁄4 ⁄8 ⁄8 61.2 2 ⁄4 ⁄4 ⁄4 56.3
1 1 5 1 5 3 1 3 1 1 7 5
... ... 2 ⁄4 ⁄2 ⁄16 66.9 2 ⁄4 ⁄8 ⁄8 61.2 2 ⁄4 ⁄4 ⁄2 56.3 2 ⁄4 ⁄8 ⁄8 51.8
1 1 3 1 5 1 1 3 5 1 7 3
... ... 2 ⁄4 ⁄2 ⁄8 66.9 2 ⁄4 ⁄8 ⁄2 61.2 2 ⁄4 ⁄4 ⁄8 56.3 2 ⁄4 ⁄8 ⁄4 51.8
1 1 5 5 1 3 3 1 1 1 1 5 5
53 2 ⁄8 2 ⁄8 ⁄16 ⁄16 76.0 2 ⁄8 ⁄8 ⁄8 72.3 2 ⁄8 ⁄2 ⁄2 65.5 2 ⁄8 ⁄8 ⁄8 59.7
1 1 3 1 1 1 5 1 5 3 1 3 1
53 2 ⁄8 2 ⁄8 ⁄8 ⁄4 72.3 2 ⁄8 ⁄2 ⁄16 59.7 2 ⁄8 ⁄8 ⁄8 59.7 2 ⁄8 ⁄4 ⁄2 54.6
1 1 3 5 1 1 3 1 5 1 1 3 5
53 2 ⁄8 2 ⁄8 ⁄8 ⁄16 72.3 2 ⁄8 ⁄2 ⁄8 59.7 2 ⁄8 ⁄8 ⁄2 59.7 2 ⁄8 ⁄4 ⁄8 54.6
5 5 3 3 1 1 5 5
50 2 2 ⁄16 ⁄16 74.8 2 ⁄8 ⁄8 70.9 2 ⁄2 ⁄2 64.0 2 ⁄8 ⁄8 58.0
3 1 1 5 5 3 3 1
50 2 2 ⁄8 ⁄4 70.9 2 ⁄2 ⁄16 64.0 2 ⁄8 ⁄8 58.0 2 ⁄4 ⁄2 52.9
3 5 1 3 5 1 3 5
50 2 2 ⁄8 ⁄16 70.9 2 ⁄2 ⁄8 64.0 2 ⁄8 ⁄2 58.0 2 ⁄4 ⁄8 52.9
7 5 5 7 3 3 7 1 1 7 5 5
... ... 1 ⁄8 ⁄16 ⁄16 73.5 1 ⁄8 ⁄8 ⁄8 69.4 1 ⁄8 ⁄2 ⁄2 62.3 1 ⁄8 ⁄8 ⁄8 56.3
7 3 1 7 1 5 7 5 3 7 3 1
... ... 1 ⁄8 ⁄8 ⁄4 69.4 1 ⁄8 ⁄2 ⁄16 62.3 1 ⁄8 ⁄8 ⁄8 56.3 1 ⁄8 ⁄4 ⁄2 51.0
7 3 5 7 1 3 7 5 1 7 3 5
... ... 1 ⁄8 ⁄8 ⁄16 69.4 1 ⁄8 ⁄2 ⁄8 62.3 1 ⁄8 ⁄8 ⁄2 56.3 1 ⁄8 ⁄4 ⁄8 51.0
3 3 5 5 3 3 3 3 1 1 3 5 5
45 1 ⁄4 1 ⁄4 ⁄16 ⁄16 72.0 1 ⁄4 ⁄8 ⁄8 67.8 1 ⁄4 ⁄2 ⁄2 60.5 1 ⁄4 ⁄8 ⁄8 54.3
3 3 3 1 3 1 5 3 5 3 3 3 1
45 1 ⁄4 1 ⁄4 ⁄8 ⁄4 67.8 1 ⁄4 ⁄2 ⁄16 60.5 1 ⁄4 ⁄8 ⁄8 49.0 1 ⁄4 ⁄4 ⁄2 49.0
3 3 3 5 3 1 3 3 5 1 3 3 5
45 1 ⁄4 1 ⁄4 ⁄8 ⁄16 67.8 1 ⁄4 ⁄2 ⁄8 60.5 1 ⁄4 ⁄8 ⁄2 49.0 1 ⁄4 ⁄4 ⁄8 49.0
5 1 1 5 5 5 5 3 3 5 1 1
... ... 1 ⁄8 ⁄4 ⁄4 75.1 1 ⁄8 ⁄16 ⁄16 70.3 1 ⁄8 ⁄8 ⁄8 66.0 1 ⁄8 ⁄2 ⁄2 58.5
5 5 3 5 3 1 5 1 5 5 5 3
... ... 1 ⁄8 ⁄16 ⁄16 70.3 1 ⁄8 ⁄8 ⁄4 66.0 1 ⁄8 ⁄2 ⁄16 58.5 1 ⁄8 ⁄8 ⁄8 52.1
5 5 1 5 3 5 5 1 3 5 5 1
... ... 1 ⁄8 ⁄16 ⁄4 70.3 1 ⁄8 ⁄8 ⁄16 66.0 1 ⁄8 ⁄2 ⁄8 58.5 1 ⁄8 ⁄8 ⁄2 52.1
1 1 1 1 1 5 5 1 3 3 1 1 1
37.5 1 ⁄2 1 ⁄2 ⁄4 ⁄4 73.5 1 ⁄2 ⁄16 ⁄16 68.5 1 ⁄2 ⁄8 ⁄8 64.0 1 ⁄2 ⁄2 ⁄2 56.3
1 1 5 3 1 3 1 1 1 5 1 5 3
37.5 1 ⁄2 1 ⁄2 ⁄16 ⁄16 68.5 1 ⁄2 ⁄8 ⁄4 64.0 1 ⁄2 ⁄2 ⁄16 56.3 1 ⁄2 ⁄8 ⁄8 49.8
1 1 5 1 1 3 5 1 1 3 1 5 1
37.5 1 ⁄2 1 ⁄2 ⁄16 ⁄4 68.5 1 ⁄2 ⁄8 ⁄16 64.0 1 ⁄2 ⁄2 ⁄8 56.3 1 ⁄2 ⁄8 ⁄2 49.8
3 1 1 3 5 5 3 3 3 3 1 1
... ... 1 ⁄8 ⁄4 ⁄4 71.6 1 ⁄8 ⁄16 ⁄16 66.4 1 ⁄8 ⁄8 ⁄8 61.7 1 ⁄8 ⁄2 ⁄2 53.8
3 5 3 3 3 1 3 1 5 3 5 3
... ... 1 ⁄8 ⁄16 ⁄16 66.4 1 ⁄8 ⁄8 ⁄4 61.7 1 ⁄8 ⁄2 ⁄16 53.8 1 ⁄8 ⁄8 ⁄8 47.3
3 5 1 3 3 5 3 1 3 3 5 1
... ... 1 ⁄8 ⁄16 ⁄4 66.4 1 ⁄8 ⁄8 ⁄16 61.7 1 ⁄8 ⁄2 ⁄8 53.8 1 ⁄8 ⁄8 ⁄2 47.3
E454−12 (2021)
TABLE1 Continued
Perforated Opening Medium Light Medium Medium Heavy Heavy
USA In-
Standard Gage- Open Gage- Open Gage- Open Gage- Open
dustrial Open- Bar, Open- Bar, Open- Bar, Open- Bar,
(metric), Steel, Area, Steel, Area, Steel, Area, Steel, Area,
Standard, ing, in. in. ing, in. in. ing, in. in. ing, in. in.
mm in. percent in. percent in. percent in. percent
in.
1 1 1 1 1 5 5 1 3 3 1 1 1
31.5 1 ⁄4 1 ⁄4 ⁄4 ⁄4 69.4 1 ⁄4 ⁄16 ⁄16 64.0 1 ⁄4 ⁄8 ⁄8 59.2 1 ⁄4 ⁄2 ⁄2 51.0
1 1 5 3 1 3 1 1 1 5 1 5 3
31.5 1 ⁄4 1 ⁄4 ⁄16 ⁄16 64.0 1 ⁄4 ⁄8 ⁄4 59.2 1 ⁄4 ⁄2 ⁄16 51.0 1 ⁄4 ⁄8 ⁄8 44.4
1 1 5 1 1 3 5 1 1 3 1 5 1
31.5 1 ⁄4 1 ⁄4 ⁄16 ⁄4 64.0 1 ⁄4 ⁄8 ⁄16 59.2 1 ⁄4 ⁄2 ⁄8 51.0 1 ⁄4 ⁄8 ⁄2 44.4
3 3 3 3 1 1 3 5 5 3 3 3
... ... 1 ⁄16 ⁄16 ⁄16 74.6 1 ⁄16 ⁄4 ⁄4 68.2 1 ⁄16 ⁄16 ⁄16 62.7 1 ⁄16 ⁄8 ⁄8 57
...
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