ASTM A947M-16

Standard Specification for Textured Stainless Steel Sheet [Metric]

ABSTRACT
This guide covers standard specification for stainless steel, textured sheets, especially for use in electronic packaging applications. The textured side or sides of the sheet shall be produced in such a manner that guarantees repeatability of the pattern over time. The texture of any sheet shall conform to the textured reference identification criteria: pattern orientation; pattern appearance; height of pattern; size of pattern; type of pattern; pattern repetition configuration; and pattern effect on far side of sheet. The heat chemical composition shall be reported and shall conform to the specified requirements. The material shall undergo all the tests and inspections such as appearance testing, tensile strength testing, and corrosion testing in indoor and outdoor environment.
SCOPE
1.1 This specification covers stainless steel, textured sheets, especially for use in electronic packaging applications, for example, cabinet, rack, enclosure, and shelf constructions for telecommunication, computer, and data-processing equipment.  
1.2 This specification applies to all finished flat-rolled stainless products specified by standards organizations such as International Standards Organization (ISO), American Society for Testing and Materials (ASTM), European Committee for Standardization (CEN), German Institute for Standardization (DIN), and others participating in a global standards harmonization effort.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

• Status: Published
• Publication Date: 29-Feb-2016
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.17 - Flat-Rolled and Wrought Stainless Steel

Relations

• Replaces: ASTM A947M-15 - Standard Specification for Textured Stainless Steel Sheet [Metric]
• Effective Date: 01-Mar-2016
• Refers: ASTM A370-24 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Effective Date: 01-Mar-2024
• Refers: ASTM A240/A240M-23a - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
• Effective Date: 01-Nov-2023
• Refers: ASTM A480/A480M-23b - Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
• Effective Date: 01-Nov-2023
• Refers: ASTM A700-14(2019) - Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
• Effective Date: 01-Nov-2019
• Refers: ASTM A480/A480M-19 - Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
• Effective Date: 01-Sep-2019
• Refers: ASTM A370-19 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Effective Date: 01-Jul-2019
• Refers: ASTM A480/A480M-18 - Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
• Effective Date: 01-Sep-2018
• Refers: ASTM A370-17a - Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Effective Date: 15-Nov-2017
• Refers: ASTM A480/A480M-17 - Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
• Effective Date: 01-Nov-2017
• Refers: ASTM A240/A240M-17 - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
• Effective Date: 01-Nov-2017
• Refers: ASTM A370-17 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Effective Date: 01-Jan-2017
• Refers: ASTM A480/A480M-16b - Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
• Effective Date: 01-Dec-2016
• Refers: ASTM A240/A240M-16a - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
• Effective Date: 01-Dec-2016
• Refers: ASTM A240/A240M-16 - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
• Effective Date: 01-May-2016

Overview

ASTM A947M-16: Standard Specification for Textured Stainless Steel Sheet [Metric] defines the requirements for textured stainless steel sheets, with particular focus on their use in electronic packaging applications, such as cabinets, racks, enclosures, and shelves for telecommunications, computer, and data-processing equipment. This specification ensures consistent quality and repeatability of textured patterns, addressing both aesthetic and functional demands for stainless steel sheet products.

Adherence to ASTM A947M-16 guarantees dimensional consistency, repeatable texture patterns, and compliance with global standards-making it a key reference for manufacturers, suppliers, and purchasers working with stainless steel materials in high-precision applications.

Key Topics

• Scope & Applicability

  • Covers flat-rolled, textured stainless steel sheets used primarily for electronic and communication equipment.
  • Applies to products specified by organizations such as ISO, ASTM, CEN, and DIN, supporting global standard harmonization.
  • Utilizes metric (SI) measurement units.

• Texture Specification

  • Detailed identification criteria for the textured side, including:
    • pattern orientation, appearance, height, size, type, repetition, and effect on the far side.
  • Standardized pattern classification ensures repeatability and quality control.

• Order and Material Requirements

  • Purchasers must specify sheet quantity, dimensions, ASTM designation, texture identification, protective liner type, and marking preferences.
  • Option to request certifications for physical, mechanical, electrical, and optical properties.

• Testing and Inspection

  • Mechanical, electrical, and corrosion resistance testing in both indoor and outdoor environments.
  • Visual and dimensional inspection of the textured surfaces against master control samples.

• Permissible Variations

  • Strict tolerances for sheet thickness, width, length, flatness, squareness, and edge camber to ensure product consistency.

Applications

Textured stainless steel sheets specified by ASTM A947M-16 are widely used in:

• Electronic Equipment Cabinets and Enclosures

  • Provide electromagnetic shielding, corrosion resistance, and robust housing for telecommunication and IT systems.

• Data Processing and Networking Racks

  • Offer structural integrity and a professional appearance for server farms and network installations.

• Computer Equipment Shelving

  • Enhance durability while meeting aesthetic requirements for visible installations.

• Architectural and Industrial Design

  • Utilize patterned finishes for decorative, slip-resistant, or glare-reducing surfaces in commercial settings.

The specification's focus on precise texture characteristics, surface properties, and corrosion resistance makes it essential wherever long-term performance and appearance are critical. Its compatibility with international standards facilitates cross-border project specifications and procurement.

Related Standards

Users of ASTM A947M-16 may also reference the following standards when specifying or evaluating stainless steel sheet products:

• ASTM A240/A240M: Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and General Applications.
• ASTM A480/A480M: General requirements for flat-rolled stainless and heat-resisting steel plate, sheet, and strip.
• ASTM A370: Mechanical testing methods for steel products.
• ISO 1462: Accelerated corrosion tests and evaluation methods.
• DIN 17441: Technical delivery conditions for stainless cold-rolled steel.
• IEC 68: Environmental testing for electronics.

ASTM A947M-16 is a critical standard for anyone specifying, manufacturing, or purchasing textured stainless steel sheet, ensuring products meet rigorous international quality and performance requirements.

Keywords: ASTM A947M, textured stainless steel sheet, electronic packaging, stainless steel standards, sheet tolerances, corrosion resistance, pattern identification, mechanical testing, international standards, electronic enclosure materials.

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: A947M −16
Standard Specification for
Textured Stainless Steel Sheet [Metric]
This standard is issued under the fixed designation A947M; 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* D257 Test Methods for DC Resistance or Conductance of
Insulating Materials
1.1 This specification covers stainless steel, textured sheets,
D523 Test Method for Specular Gloss
especially for use in electronic packaging applications, for
2.2 ISO Standards:
example, cabinet, rack, enclosure, and shelf constructions for
ISO 1462 Accelerated Corrosion Tests and Evaluation of
telecommunication, computer, and data-processing equipment.
Results
1.2 This specification applies to all finished flat-rolled
ISO 6892 Metallic Materials Tensile Testing
stainless products specified by standards organizations such as 4
2.3 IEC Standard:
International Standards Organization (ISO), American Society
IEC 68 Environmental Testing
for Testing and Materials (ASTM), European Committee for
2.4 CEN Standard:
Standardization (CEN), German Institute for Standardization
EN 10002⁄1 Metallic Materials Tensile Testing
(DIN), and others participating in a global standards harmoni-
2.5 DIN Standards:
zation effort.
DIN 17441 Stainless Steel Technical Delivery Conditions
1.3 The values stated in SI units are to be regarded as the
for Stainless Cold Rolled Steel
standard. The values given in parentheses are for information
DIN 50021-SS Spray Test with Different Sodium Chloride
only.
Solutions
DIN 50980 Evaluation of Corrosion Tests
2. Referenced Documents
2 3. Terminology
2.1 ASTM Standards:
A240/A240M Specification for Chromium and Chromium- 3.1 Definitions of Terms Specific to This Standard:
Nickel Stainless Steel Plate, Sheet, and Strip for Pressure 3.1.1 textured—a three-dimensional design pattern, regard-
Vessels and for General Applications less of the specific production-process approach.
A370 Test Methods and Definitions for Mechanical Testing
4. Ordering Information
of Steel Products
A480/A480M Specification for General Requirements for 4.1 It is the responsibility of the purchaser to specify all
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
requirements that are necessary for material ordered under this
Sheet, and Strip specification. Such requirements may include, but are not
A700 Guide for Packaging, Marking, and Loading Methods
limited to the following:
for Steel Products for Shipment 4.1.1 Quantity—Number of sheets or weight.
A751 Test Methods, Practices, and Terminology for Chemi-
4.1.2 Dimensions of sheet (thickness (texture included),
cal Analysis of Steel Products width, and length). See Tables 1-5 and Section 9 for preferred
B117 Practice for Operating Salt Spray (Fog) Apparatus
sizes and tolerances.
B193 Test Method for Resistivity of Electrical Conductor 4.1.3 ASTM designation and date of issue.
Materials
4.1.4 Name and type of material.
4.1.5 Surface condition of the nontextured surface. See
Specification A480/A480M or DIN 17441 Table 8.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.17 on Flat-Rolled and Wrought Stainless Steel. Available from International Organization for Standardization (ISO), 1 rue de
Current edition approved March 1, 2016. Published March 2016. Originally Varembé, Case postale 56, CH-1211, Geneva 20, Switzerland.
approved in 1995. Last previous edition approved in 2015 as A947M – 15. DOI: Available from International Electrotechnical Commission (IEC), 3 rue de
10.1520/A0947M-16. Varembé, Case postale 131, CH-1211, Geneva 20, Switzerland.
2 5
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from European Committee for Standardization (CEN), Rue Breder-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM ode 2, B 1000 Bruxelles.
Standards volume information, refer to the standard’s Document Summary page on Available from German Institute for Standardization (DIN), Burggrafenstrasse
the ASTM website. 6, 1000 Berlin 30.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A947M − 16
A A
TABLE 1 Permissible Deviations in Thickness TABLE 5 Permissible Deviations on Squareness
Permissible Squareness Tolerances at Nominal
Nominal Length
Applicable Thickness
Thickness Width Ratio of AA/BB Dimension
Preferred Nominal Variations for
$# #1000 $1000 to#1600
Thickness Nominal Sheet
Widths$10
$#
. . . 2000 6 7
#1600
2000 3000 7 7
3000 3500 7 8
0.40 0.4 0.5 0.04
3500 5000 8 10
0.50; 0.60 0.5 0.7 0.05
5000 6000 12 12
0.70; 0.80; 0.90; 1.00 0.7 1.1 0.06
A
Dimensions stated are in millimetres.
1.20 1.1 1.5 0.08
1.50; 2.00 1.5 2.5 0.1
2.50; 3.00 2.5 3.5 0.12
3.50; 4.00 3.5 4.5 0.14
TABLE 6 Textured Reference Identification
4.50; 5.00; 6.00 4.5 6.0 0.15
Pattern orientation Note 1
A
In reference to preferred sheet thicknesses. Dimensions stated are in
Pattern appearance Note 2
millimetres.
Height of pattern Note 3
Size of pattern Note 4
Type of pattern Note 5
A
Pattern repetition configuration Note 6
TABLE 2 Permissible Deviations for Nominal Widths
Pattern effect on far side of sheet Note 7
Nominal
Permmissible Deviation at Nominal Width
Example of typical ordering description:
Thickness
S-F-O,6-1,3-6-170-3
$# #100 $100 to#300 $300 to#700 $700 to#1600
Note 1: S (Straight) Pattern oriented with flow line of rolling
process.
0.40 1.00 0.5 0.8 1.0 1.5
A (Angular) Pattern oriented 45° to flow line of rolling
1.00 1.75 0.7 1.0 1.5 1.5
process.
1.75 3.00 1.0 1.5 1.5 2.0
O (Other) Optional pattern orientation.
3.00 6.00 . . . . . . 2.0 2.0
Note 2: F (Fine) If the number of pattern repetitions under
A Note 6 exceeds 100.
Dimensions stated are in millimetres.
C (Coarse) If the number of pattern repetitions under
Note 6 is less than 100.
Note 3: Height of pattern in millimetres.
A
TABLE 3 Permissible Deviations for Nominal Length
Note 4: Size of individual pattern.
Permissible Deviation for Nominal (Largest individual pattern dimension in millimetres; length, width,
Nominal “L”
Length
diagonal, and so forth.)
Note 5: Type of pattern:
#2000 5
No. 0 round No. 7 trapezoidal No. 14 arrow
> 2000 0.0025 × Length
No. 1 square No. 8 lines No. 15 snowflake
No. 2 rectangular No. 9 points No. 16 teardrop
A
Dimensions stated are in millimetres.
No. 3 triangular No. 10 letters No. 17 combination
No. 4 hex No. 11 numbers No. 18 shapeless
No. 5 octal No. 12 bricks No. 19 irregular shape
A
No. 6 oblong No. 13 star No. 20 others not
TABLE 4 Permissible Deviations on Flatness
defined
Total Deviation, %
Note 6: Number of largest individual pattern repetitions within a 20-mm ·
Nominal Thickness
Relating to Length Relating to Width
20-mm area of the stainless steel sheet. (Partial pattern
D/L D/W
repetition included.)
Note 7: A two-sided pattern under this specification displays the same
0.40 2.00 0.4 0.5
pattern on both sides of the sheet. This pattern is usually
2.00 4.00 0.3 0.4
reserved for material thicknesses of 2.5 mm and thicker.
4.00 6.00 0.1 0.4
No. 1 Two-sided pattern.
A No. 2 One-sided pattern. No visible marks from an one-sided
Dimensions stated are in millimetres.
pattern, when viewed with the unaided eye from a distance of
1m.
No. 3 One-sided pattern. Shadings and reflections as a result from
the pattern process on the opposite side of the sheet shall be
4.1.6 Textured identification reference number. See Table 6.
acceptable.
4.1.7 Type and thickness of protective liner, if required by
No. 4 One-sided pattern. Measurable deformation, caused by the
pattern on the opposite side of the sheet shall be acceptable.
the purchaser.
4.1.8 Marking requirements. Reference: Practices A700.
NOTE 1—A typical ordering description is as follows: 500 sheets, 1.00
by 1200 by 2500 mm; Specification A240/A240M, Type 430; Surface
Finish Texture ID: S-F-O, 6-1, 3-6-170-3; 100 sheet maximum/skid,
5.2 Manufacture process of textured material under this
textured side up. Each skid marked with purchase order number, appli-
specification shall follow industry practices.
cable ASTM standard, and date of shipment.
5. Materials and Manufacture 6. Texture of Sheet
5.1 The textured side or sides of the sheet shall be produced 6.1 The texture of any sheet delivered under this specifica-
in such a manner that guarantees repeatability of the pattern tion shall meet the provisions outlined in Table 6 and Section
over time. See 6.2. 13.
A947M − 16
6.2 The customer shall either provide a control-sample (300
by 400 mm) or designate a control-sample from a chosen
textured material to ensure accurate repetition in appearance of
like products. See Section 13.
7. Chemical Composition
7.1 The heat chemical composition shall be reported to the
purchaser, or his representative, and shall conform to the
requirements specified in the applicableASTM standard of the
steel type selected for texturing.
7.2 Methods and practices relating to chemical analysis
required by this specification shall be in accordance with Test
FIG. 1 Squareness
Methods, Practices, and Terminology A751.
9.7 The maximum permissible deviation of the edge camber
8. Other Requirements
“D” for textured sheets is 0.2 % of the nominal length of the
8.1 If requested by the purchaser, physical (electrical and
sheet. (See 10.6)
optical) and mechanical (tensile, yield, and elongation)
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A947M − 15 A947M − 16
Standard Specification for
Textured Stainless Steel Sheet [Metric]
This standard is issued under the fixed designation A947M; 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*
1.1 This specification covers stainless steel, textured sheets, especially for use in electronic packaging applications, for example,
cabinet, rack, enclosure, and shelf constructions for telecommunication, computer, and data-processing equipment.
1.2 This specification applies to all finished flat-rolled stainless products specified by standards organizations such as
International Standards Organization (ISO), American Society for Testing and Materials (ASTM), European Committee for
Standardization (CEN), German Institute for Standardization (DIN), and others participating in a global standards harmonization
effort.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents
2.1 ASTM Standards:
A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and
for General Applications
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B117 Practice for Operating Salt Spray (Fog) Apparatus
B193 Test Method for Resistivity of Electrical Conductor Materials
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D523 Test Method for Specular Gloss
2.2 ISO Standards:
ISO 1462 Accelerated Corrosion Tests and Evaluation of Results
ISO 6892 Metallic Materials Tensile Testing
2.3 IEC Standard:
IEC 68 Environmental Testing
2.4 CEN Standard:
EN 10002 ⁄1 Metallic Materials Tensile Testing
2.5 DIN Standards:
DIN 17441 Stainless Steel Technical Delivery Conditions for Stainless Cold Rolled Steel
DIN 50021-SS Spray Test with Different Sodium Chloride Solutions
DIN 50980 Evaluation of Corrosion Tests
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.17
on Flat-Rolled and Wrought Stainless Steel.
Current edition approved Nov. 1, 2015March 1, 2016. Published December 2015March 2016. Originally approved in 1995. Last previous edition approved in 20132015
as A947M – 13.A947M – 15. DOI: 10.1520/A0947M-15.10.1520/A0947M-16.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from International Organization for Standardization (ISO), 1 rue de Varembé, Case postale 56, CH-1211, Geneva 20, Switzerland.
Available from International Electrotechnical Commission (IEC), 3 rue de Varembé, Case postale 131, CH-1211, Geneva 20, Switzerland.
Available from European Committee for Standardization (CEN), Rue Brederode 2, B 1000 Bruxelles.
Available from German Institute for Standardization (DIN), Burggrafenstrasse 6, 1000 Berlin 30.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A947M − 16
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 textured—a three-dimensional design pattern, regardless of the specific production-process approach.
4. Ordering Information
4.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this
specification. Such requirements may include, but are not limited to the following:
4.1.1 Quantity—Number of sheets or weight.
4.1.2 Dimensions of sheet (thickness (texture included), width, and length). See Tables 1-5 and Section 9 for preferred sizes and
tolerances.
4.1.3 ASTM designation and date of issue.
4.1.4 Name and type of material.
4.1.5 Surface condition of the nontextured surface. See Specification A480/A480M or DIN 17441 Table 8.
4.1.6 Textured identification reference number. See Table 6.
4.1.7 Type and thickness of protective liner, if required by the purchaser.
4.1.8 Marking requirements. Reference: Practices A700.
NOTE 1—A typical ordering description is as follows: 500 sheets, 1.00 by 1200 by 2500 mm; Specification A240/A240MA176,, Type 430; Surface
Finish Texture ID: S-F-O, 6-1, 3-6-170-3; 100 sheet maximum/skid, textured side up. Each skid marked with purchase order number, applicable ASTM
standard, and date of shipment.
5. Materials and Manufacture
5.1 The textured side or sides of the sheet shall be produced in such a manner that guarantees repeatability of the pattern over
time. See 6.2.
5.2 Manufacture process of textured material under this specification shall follow industry practices.
6. Texture of Sheet
6.1 The texture of any sheet delivered under this specification shall meet the provisions outlined in Table 6 and Section 13.
6.2 The customer shall either provide a control-sample (300 by 400 mm) or designate a control-sample from a chosen textured
material to ensure accurate repetition in appearance of like products. See Section 13.
7. Chemical Composition
7.1 The heat chemical composition shall be reported to the purchaser, or his representative, and shall conform to the
requirements specified in the applicable ASTM standard of the steel type selected for texturing.
7.2 Methods and practices relating to chemical analysis required by this specification shall be in accordance with Test Methods,
Practices, and Terminology A751.
8. Other Requirements
8.1 If requested by the purchaser, physical (electrical and optical) and mechanical (tensile, yield, and elongation) property
requirements shall be reported to the purchaser based on a lot size as specified in 8.2.
A
TABLE 1 Permissible Deviations in Thickness
Permissible
Applicable Thickness
Thickness
Preferred Nominal Variations for
Thickness Nominal Sheet
Widths $10
$ #
#1600
0.40 0.4 0.5 0.04
0.50; 0.60 0.5 0.7 0.05
0.70; 0.80; 0.90; 1.00 0.7 1.1 0.06
1.20 1.1 1.5 0.08
1.50; 2.00 1.5 2.5 0.1
2.50; 3.00 2.5 3.5 0.12
3.50; 4.00 3.5 4.5 0.14
4.50; 5.00; 6.00 4.5 6.0 0.15
A
In reference to preferred sheet thicknesses. Dimensions stated are in
millimetres.
A947M − 16
A
TABLE 2 Permissible Deviations for Nominal Widths
Nominal
Permmissible Deviation at Nominal Width
Thickness
$ # #100 $100 to #300 $300 to #700 $700 to #1600
0.40 1.00 0.5 0.8 1.0 1.5
1.00 1.75 0.7 1.0 1.5 1.5
1.75 3.00 1.0 1.5 1.5 2.0
3.00 6.00 . . . . . . 2.0 2.0
A
Dimensions stated are in millimetres.
A
TABLE 3 Permissible Deviations for Nominal Length
Permissible Deviation for Nominal
Nominal “L”
Length
#2000 5
> 2000 0.0025 × Length
A
Dimensions stated are in millimetres.
A
TABLE 4 Permissible Deviations on Flatness
Total Deviation, %
Nominal Thickness
Relating to Length Relating to Width
D/L D/W
0.40 2.00 0.4 0.5
2.00 4.00 0.3 0.4
4.00 6.00 0.1 0.4
A
Dimensions stated are in millimetres.
A
TABLE 5 Permissible Deviations on Squareness
Squareness Tolerances at Nominal
Nominal Length
Width Ratio of AA/BB Dimension
$ # #1000 $1000 to #1600
. . . 2000 6 7
2000 3000 7 7
3000 3500 7 8
3500 5000 8 10
5000 6000 12 12
A
Dimensions stated are in millimetres.
8.2 A lot shall consist of all sheets of the same thickness made from the same coil. In case the material cannot be identified by
coil, a lot shall consist of no more than 5000 kg (approximately 5 tons) of sheets of the same thickness.
8.3 Electrical Requirements:
8.3.1 The specific resistivity of the material measured at 20°C to be reported in ohms·mm /m (μΩ·cm).
8.3.2 The surface resistivity of the material measured at 20°C to be reported in milliohms. Refer to Test Methods D257.
8.4 Optical Requirements—The textured surface of the material selected under this specification shall meet the inspection
requirements (see 13.2) based on a visual sample comparison or a 6:1 art master pattern comparison, or both.
8.5 Mechanical Requirements—The mechanical properties, tensile strength, yield strength, and elongation of the material
selected for texturing shall be reported in values specified in 12.5 of this specification.
9. Dimensions, Mass, and Permissible Variations
9.1 Unless noted in the purchase order, the stated tolerance conditions in Tables 1-5 are deemed to be acceptable.
9.2 Table 1 lists the tolerance for sheet thickness relevant to the preferred thickness sizes of textured sheets in this specification.
9.3 Table 2 lists the tolerance for sheet widths relevant to the preferred width sizes of textured sheets in this specification.
9.4 Table 3 lists the tolerance for sheet lengths relevant to the preferred length sizes in this specification.
A947M − 16
TABLE 6 Textured Reference Identification
Pattern orientation Note 1
Pattern appearance Note 2
Height of pattern Note 3
Size of pattern Note 4
Type of pattern Note 5
Pattern repetition configuration Note 6
Pattern effect on far side of sheet Note 7
Example of typical ordering description:
S-F-O,6-1,3-6-170-3
Note 1: S (Straight) Pattern oriented with flow line of rolling
process.
A (Angular) Pattern oriented 45° to flow line
...