ASTM A407-18

Standard Specification for Steel Wire, Cold-Drawn, for Coiled-Type Springs

SCOPE
1.1 This specification covers round, cold-drawn, steel spring wire having properties and quality intended for the manufacture of the following types of upholstery springs:  
1.1.1 Type A—Coiled (Marshall pack),  
1.1.2 Type B—Coiled and knotted,  
1.1.3 Type C—Coiled and knotted (offset style),  
1.1.4 Type D—Coiled and hooked (single and cross helicals),  
1.1.5 Type E—Coiled and hooked (short tension—regular tensile strength),  
1.1.6 Type F—Coiled and hooked (short tension—high tensile strength),  
1.1.7 Type G—Regular lacing,  
1.1.8 Type H—Automatic lacing,  
1.1.9 Type I—Zig-zag (U-formed),  
1.1.10 Type J—Square-formed, and  
1.1.11 Type K—Sinuous for furniture spring units.  
1.2 These types of upholstery springs are used in the manufacture of automotive seat springs, furniture springs, bed spring units, mattresses, furniture cushions, and automobile seats. This wire is not intended for the manufacture of mechanical springs.  
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 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

• Status: Historical
• Publication Date: 28-Feb-2018
• ICS: 77.140.25 - Spring steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.03 - Steel Rod and Wire

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A407 − 18
Standard Specification for
1
Steel Wire, Cold-Drawn, for Coiled-Type Springs
This standard is issued under the fixed designation A407; 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* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers round, cold-drawn, steel spring
A370 Test Methods and Definitions for Mechanical Testing
wire having properties and quality intended for the manufac-
of Steel Products
ture of the following types of upholstery springs:
A700 Guide for Packaging, Marking, and Loading Methods
1.1.1 Type A—Coiled (Marshall pack),
for Steel Products for Shipment
1.1.2 Type B—Coiled and knotted,
A941 Terminology Relating to Steel, Stainless Steel, Related
1.1.3 Type C—Coiled and knotted (offset style),
Alloys, and Ferroalloys
1.1.4 Type D—Coiled and hooked (single and cross
E29 Practice for Using Significant Digits in Test Data to
helicals),
Determine Conformance with Specifications
1.1.5 Type E—Coiled and hooked (short tension—regular
2.2 AIAG Standard:
tensile strength),
AIAG B-10 Trading Partner Labels Implementation Guide-
3
lines
1.1.6 Type F—Coiled and hooked (short tension—high
tensile strength),
3. Terminology
1.1.7 Type G—Regular lacing,
3.1 Definitions—For definitions of terms used in this
1.1.8 Type H—Automatic lacing,
specification, refer to Terminology A941.
1.1.9 Type I—Zig-zag (U-formed),
1.1.10 Type J—Square-formed, and
4. Ordering Information
1.1.11 Type K—Sinuous for furniture spring units.
4.1 Orders for material under this specification shall include
1.2 These types of upholstery springs are used in the
the following information for each ordered item:
manufacture of automotive seat springs, furniture springs, bed
4.1.1 Quantity (weight),
spring units, mattresses, furniture cushions, and automobile
4.1.2 Name of material (name of specific type required)
seats. This wire is not intended for the manufacture of
(Section 1 and Table 1),
mechanical springs.
4.1.3 Diameter (Table 2),
4.1.4 Packaging, marking, and loading (Section 14), and
1.3 The values stated in inch-pound units are to be regarded
4.1.5 ASTM designation and date of issue.
as standard. The values given in parentheses are mathematical
4.2 The purchaser shall have the option to specify additional
conversions to SI units that are provided for information only
and are not considered standard. requirements, including but not limited to:
4.2.1 Requirements for certifications, heat analysis, or test
1.4 This international standard was developed in accor-
reports, (see Sections 6 and 13),
dance with internationally recognized principles on standard-
4.2.2 Special packing, marking, and loading requirements
ization established in the Decision on Principles for the
(see Section 14),
Development of International Standards, Guides and Recom-
4.2.3 Other special requirements, if any.
mendations issued by the World Trade Organization Technical
NOTE 1—A typical ordering description is as follows: 50 000 lb [15 000
Barriers to Trade (TBT) Committee.
kg], cold-drawn upholstery spring wire Type B for coiling and knotting,
1 2
This specification is under the jurisdiction of ASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
A01.03 on Steel Rod and Wire. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 1, 2018. Published April 2018. Originally the ASTM website.
3
approved in 1957. Last previous edition approved in 2013 as A407 – 07 (2013). Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd.,
DOI: 10.1520/A0407-18. Suite 200, Southfield, MI 48033-7100, www.aiag.org.
*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
1

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A407 − 18
A A
TABLE 1 Tensile Strength Requirements TABLE 2 Permissible Variations in Wire Diameter
Diameter, in. [mm] Variations, plus and Permissible Out-of-
Tensile Strength, ksi [MPa]
Diameter, Wire
minus, in. [mm] Round, in. [mm]
in. [mm] Gauge
min max
Type A, Marshall Pack
Sizes finer than 0.076 [1.93] 0.001 [0.02] 0.001 [0.02]
0.048 [1.22] 18 255 [1760] 295 [2030]
Sizes 0.076 to 0.192 [1.93 to 4.88], 0.002 [0.05] 0.002 [0.05]
0.054 [1.37] 17 250 [1720] 290 [2000]
incl
0.062 [1.57] 16
...

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: A407 − 07 (Reapproved 2013) A407 − 18
Standard Specification for
1
Steel Wire, Cold-Drawn, for Coiled-Type Springs
This standard is issued under the fixed designation A407; 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 Scope*
1.1 This specification covers round, cold-drawn, steel spring wire having properties and quality intended for the manufacture
of the following types of upholstery springs:
1.1.1 Type A—Coiled (Marshall pack),
1.1.2 Type B—Coiled and knotted,
1.1.3 Type C—Coiled and knotted (offset style),
1.1.4 Type D—Coiled and hooked (single and cross helicals),
1.1.5 Type E—Coiled and hooked (short tension—regular tensile strength),
1.1.6 Type F—Coiled and hooked (short tension—high tensile strength),
1.1.7 Type G—Regular lacing,
1.1.8 Type H—Automatic lacing,
1.1.9 Type I—Zig-zag (U-formed),
1.1.10 Type J—Square-formed, and
1.1.11 Type K—Sinuous for furniture spring units.
1.2 These types of upholstery springs are used in the manufacture of automotive seat springs, furniture springs, bed spring units,
mattresses, furniture cushions, and automobile seats. This wire is not intended for the manufacture of mechanical springs.
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 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.2 AIAG Standard:
AIAGB-5 02.00AIAG B-10 Primary Metals Identification Tag Application StandardTrading Partner Labels Implementation
3
Guidelines
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology A941.
4. Ordering Information
4.1 Orders for material under this specification shouldshall include the following information for each ordered item:
4.1.1 Quantity (weight),
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.03
on Steel Rod and Wire.
Current edition approved April 1, 2013March 1, 2018. Published April 2013April 2018. Originally approved in 1957. Last previous edition approved in 20072013 as
A407 – 07.A407 – 07 (2013). DOI: 10.1520/A0407-07R13.10.1520/A0407-18.
2
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.
3
Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd., Suite 200, Southfield, MI 48033-7100, www.aiag.org.
*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
1

---------------------- Page: 1 ----------------------
A407 − 18
4.1.2 Name of material (name of specific type required) (Section 1 and Table 1),
4.1.3 Diameter (Table 2),
4.1.4 Packaging, marking, and loading (Section 1214), and
4.1.5 ASTM designation and date of issue, and issue.
3.1.6 Heat (cast) analysis (if desired).
NOTE 1—A typical ordering description is as follows: 50 000 lb [15 000 kg], cold-drawn upholstery spring wire Type B for coiling and knotting, size
0.080 in. [2.0 mm], 1500-lb [700 kg] coils on tubular carriers to ASTM A407 dated.
4.2 The purchaser shall have the option to specify additional requirements, including but not limited to:
4.2.1 Requirements for certifications, heat analysis, or test reports, (see Sections 6 and 13),
4.2.2 Special packing, marking, and loading
...