ASTM A228/A228M-16
(Specification)Standard Specification for Steel Wire, Music Spring Quality
Standard Specification for Steel Wire, Music Spring Quality
ABSTRACT
This specification covers high quality, round, cold-drawn steel music spring quality wire for the manufacture of springs subject to high stresses or requiring good fatigue properties. The steel shall either be ingot cast or strand cast. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, sulfur, and silicon. Steel specimens shall also undergo tension test, wrap test, and torsion tests. Final products shall be marked by a tag.
SCOPE
1.1 This specification covers two types of round, cold-drawn steel music spring quality wire, uniform in mechanical properties, intended especially for the manufacture of springs subject to high stresses or requiring good fatigue properties.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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Designation:A228/A228M −16
Standard Specification for
1
Steel Wire, Music Spring Quality
This standard is issued under the fixed designationA228/A228M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2.2 Federal Standard:
3
Fed. Std. No. 123,Marking for Shipment (Civil Agencies)
1.1 This specification covers two types of round, cold-
4
2.3 American National Standard:
drawn steel music spring quality wire, uniform in mechanical
B32.100Preferred Metric Sizes for Flat, Round, Square,
properties, intended especially for the manufacture of springs
Rectangular, and Hexagonal Metal Products
subject to high stresses or requiring good fatigue properties.
5
2.4 AIAG Standard:
1.2 The values stated in either SI units or inch-pound units
AIAG B-502.00 Primary Metals IdentificationTagApplica-
are to be regarded separately as standard. The values stated in
tion Standard
each system may not be exact equivalents; therefore, each
3. Terminology
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
3.1 Definitions—For definitions of terms used in this
with the standard.
specification, refer to Terminology A941.
2. Referenced Documents
4. Ordering Information
2
2.1 ASTM Standards:
4.1 Orders for steel wire under this specification shall
A370Test Methods and Definitions for Mechanical Testing
contain the following information:
of Steel Products
4.1.1 Quantity (weight in lbs, or mass in kg),
A510/A510MSpecification for General Requirements for
4.1.2 Name (music steel spring wire) and type (Type 1 or
Wire Rods and Coarse Round Wire, Carbon Steel
Type 2) of material,
A700Guide for Packaging, Marking, and Loading Methods
4.1.3 Diameter (Table 1 and Section 9),
for Steel Products for Shipment
4.1.4 Finish (see 10.2),
A751Test Methods, Practices, and Terminology for Chemi-
4.1.5 Packaging (Section 15), and
cal Analysis of Steel Products
4.1.6 ASTM designation and year of issue.
A938Test Method for Torsion Testing of Wire
4.2 Thepurchasershallhavetheoptiontospecifyadditional
A941TerminologyRelatingtoSteel,StainlessSteel,Related
requirements, including but not limited to:
Alloys, and Ferroalloys
4.2.1 Requirements for certifications, heat, or test reports,
E29Practice for Using Significant Digits in Test Data to
(see Section 14),
Determine Conformance with Specifications
4.2.2 Special packing, marking, and loading requirements
E1077Test Methods for Estimating the Depth of Decarbur-
(see Section 15), and
ization of Steel Specimens
4.2.3 Other special requirements, if any,
NOTE 1—Atypical inch-pound units ordering description is as follows:
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
10000 lb Music Steel SpringWire,Type 1, 0.055 in. diameter, phosphate
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.03 on Steel Rod and Wire.
3
Current edition approved Dec. 1, 2016. Published January 2017. Originally Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
approved in 1939. Last previous edition approved in 2014 as A228/A228M–14. Section D, 700 Robbins Ave., Philadelphia, PA 19111–5098, http://
DOI: 10.1520/A0228_A0228M-16. www.dodssp.daps.mil.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Standards volume information, refer to the standard’s Document Summary page on Available fromAutomotive IndustryAction Group (AIAG), 26200 Lahser Rd.,
the ASTM website. Suite 200, Southfield, MI 48033, http://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 ----------------------
A228/A228M−16
TABLE 1 Tensile Requirements
wire furnished to this specification shall be in accordance with
Inch-Pound Units
Specification A510/A510M.
5.2 The finished wire shall be free from detrimental pipe
Diameter, Tensile Strength, Tensile Strength,
A
in. ksi Diameter, ksi
and undue segregation.
A
min max in. min max
5.3 The wire shall be cold drawn to produce the desired
0.004 439 485 0.059 296 327
mechanical properties.
0.005 426 471 0.063 293 324
5.3.1 Type 1 wire shall be directly drawn from either
0.006 415 459 0.067 290 321
...
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: A228/A228M − 14 A228/A228M − 16
Standard Specification for
1
Steel Wire, Music Spring Quality
This standard is issued under the fixed designation A228/A228M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Scope*
1.1 This specification covers a high quality,two types of round, cold-drawn steel music spring quality wire, uniform in
mechanical properties, intended especially for the manufacture of springs subject to high stresses or requiring good fatigue
properties.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A510/A510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
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
A938 Test Method for Torsion Testing of Wire
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
E1077 Test Methods for Estimating the Depth of Decarburization of Steel Specimens
2.2 Federal Standard:
3
Fed. Std. No. 123, Marking for Shipment (Civil Agencies)
4
2.3 American National Standard:
B32.4B32.100 Preferred Metric Sizes for Flat, Round, Square, Rectangle,Rectangular, and HexagonHexagonal Metal Products
5
2.4 AIAG Standard:
AIAG B-5 02.00 Primary Metals Identification Tag Application Standard
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology A941.
4. Ordering Information
4.1 Orders for steel wire under this specification shall contain the following information:
4.1.1 Quantity (weight in lbs, or mass in kg),
4.1.2 Name of material (music steel spring wire), wire) and type (Type 1 or Type 2) of material,
4.1.3 Diameter (Table 1 and Section 9),
4.1.4 Finish (see 10.2),
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 March 1, 2014Dec. 1, 2016. Published April 2014January 2017. Originally approved in 1939. Last previous edition approved in 20072014 as
A228/A228M – 07.A228/A228M – 14. DOI: 10.1520/A0228_A0228M-14. 10.1520/A0228_A0228M-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111–5098, http://www.dodssp.daps.mil.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd., Suite 200, Southfield, MI 48033, http://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 ----------------------
A228/A228M − 16
TABLE 1 Tensile Requirements
Inch-Pound Units
Diameter, Tensile Strength, Tensile Strength,
A
in. ksi Diameter, ksi
A
min max in. min max
0.004 439 485 0.059 296 327
0.005 426 471 0.063 293 324
0.006 415 459 0.067 290 321
0.007 407 449 0.072 287 317
0.008 399 441 0.076 284 314
0.009 393 434 0.080 282 312
0.010 387 428 0.085 279 308
0.011 382 422 0.090 276 305
0.012 377 417 0.095 274 303
0.013 373 412 0.100 271 300
0.014 369 408 0.102 270 299
0.015 365 404 0.107 268 296
0.016 362 400 0.110 267 295
0.018 356 393 0.112 266 294
0.020 350 387 0.121 263 290
0.022 345 382 0.125 261 288
...
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