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Designation: A 228/A 228M – 02 Standard Specification for Steel Wire, Music Spring Quality1

时间:2014-5-29 14:29:05 作者:158009900 来源:De 阅读:1540次
Designation: A 228/A 228M – 02 Standard Specification for Steel Wire, Music Spring Quality1

Designation: A 653/A 653M – 05 Standard Speci?cation for Steel Sheet, Zinc-Coated
When the amount of copper, nickel, chromium, or molybdenum is less than 0.02 %, report
This abstract is a brief summary of the referenced standard. It is informational only and not
purchase order or contract specifies the applicable “M” specification designation (SI
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美国钢丝标准

1. Scope
1.1 This specification covers a high quality, round, colddrawn 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 (metric) units or inchpound units are to be regarded separately as standard. The
values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.
2. Referenced Documents
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products2
A 510 Specification for General Requirements for Wire
Rods and Coarse Round Wire, Carbon Steel2
A 510M Specification for General Requirements for Wire
Rods and Coarse Round Wire, Carbon Steel [Metric]2
A 700 Practices for Packaging, Marking, and Loading
Methods for Steel Products for Domestic Shipment3
A 751 Test Methods, Practices, and Terminology for
Chemical Analysis of Steel Products2
A 938 Standard Test Method for Torsion Testing of Wire2
A 941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys4
E 29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications5
E 1077 Test Method for Estimating the Depth of Decarburization of Steel Specimens6
2.2 Military Standard:
MIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage7
2.3 Federal Standard:
Fed. Std. No. 123, Marking for Shipment (Civil Agencies)7
2.4 American National Standard:
B32.4 Preferred Metric Sizes for Round, Square, Rectangle,
and Hexagon Metal Products8
2.5 AIAG Standard:
AIAG B-5 02.00 Primary Metals Identification Tag Application Standard9
3. Terminology
3.1 Definitions—For definitions of terms used in this speci-
fication, refer to Terminology A 941.
4. Ordering Information
4.1 It shall be the responsibility of the purchaser to specify
all requirements that are necessary for material under this
specification. Such requirements may include, but are not
limited to, the following information:
4.1.1 Quantity (mass),
4.1.2 Name of material (music steel spring wire),
4.1.3 Dimensions (Table 1 and Section 9),
4.1.4 Finish (see 10.2),
4.1.5 Packaging (Section 15),
4.1.6 Heat analysis report, if requested (see 6.2),
4.1.7 Certification or test report, or both, if specified (Section 14), and
4.1.8 ASTM designation and year of issue.
NOTE 1—A typical metric ordering description is as follows: 2500 kg
Music Spring Wire, 1.40 mm diameter, phosphate coated in 25 kg coils to
ASTM A 288M dated _____, or for inch-pound units, 5000 lb Music
Spring Wire, 0.055 in. diameter, phosphate coated in 50 lb coils to ASTM
A 288 dated _____.
5. Materials and Manufacture
5.1 The steel may be made by any commercially accepted
steel-making process. The steel may be either ingot cast or
strand cast. The rod to be used in the manufacture of wire
furnished to this specification shall be in accordance with
Specification A 510 or A 510M.
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 10, 2002. Published April 2002. Originally
published as A 228 – 39 T. Last previous edition A 228/A 228M – 00.
2
Annual Book of ASTM Standards, Vol 01.03.
3
Annual Book of ASTM Standards, Vol 01.05.
4
Annual Book of ASTM Standards, Vol 01.01.
5
Annual Book of ASTM Standards, Vol 14.02.
6
Annual Book of ASTM Standards, Vol 03.01.
7
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
8
Available from American National Standards Institute, 11 West 42nd Street,
13th Floor, New York, NY 10036.
9
Available from the Automotive Industry Action Group, 26200 Lahser, Suite
200, Southfield, MI 48034.
1
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
Copyright by ASTM Int'l (all rights reserved);
Reproduction authorized per License Agreement with SANJEEV RIVERA (LEE SPRING COMPANY); Mon Jun 20 16:41:27 EDT 20055.2 The finished wire shall be free from detrimental pipe
and undue segregation.
5.3 The wire shall be cold drawn to produce the desired
mechanical properties.
6. Chemical Composition
6.1 The steel shall conform to the requirements for chemical
composition prescribed in Table 2.
6.2 Heat Analysis—Each heat of steel shall be analyzed by
the manufacturer to determine the percentage of elements
prescribed in Table 2. This analysis shall be made from a test
specimen preferably taken during the pouring of the heat.
When requested in the purchase order, the heat analysis shall
be reported to the purchaser.
6.3 Product Analysis—An analysis may be made by the
purchaser from finished wire representing each heat of steel.
The chemical composition thus determined, as to elements
required or restricted, shall conform to the product analysis
requirements specified in Table 7 of Specification A 510M or
A 510.
6.4 For referee purposes, Test Methods, Practices, and
Terminology A 751 shall be used.
7. Mechanical Properties
7.1 Tension Test:
7.1.1 Requirements—The material as represented by tension
test specimens shall conform to the requirements prescribed in
Table 1.
7.1.2 Number of Tests—One test specimen shall be taken
from each end of every coil or from the top or outside end of
each reel or spool.
7.1.3 Test Method—The tension test shall be made in
accordance with Test Methods and Definitions A 370.
7.1.4 For wire diameters over 6.0 mm [0.250 in.], mechanical properties and chemical composition shall be negotiated
between purchaser and supplier and shall be included on the
order information.
7.2 Wrap Test:
7.2.1 Requirements—The wrap test shall be applied only to
sizes smaller than 0.70 mm [0.028 in.] in diameter.
7.2.2 Number of Tests—One test specimen shall be taken
from the top or outside end of each coil, reel or spool and shall
be tested for conformance.
7.2.3 Test Method—Each test specimen shall be closed
wound on an arbor of its own diameter for a minimum of four
full wraps. Wire so tested shall not show any splits or fractures.
7.3 Torsion Test:
7.3.1 Requirements—The torsion test shall be applied to
wire sizes 0.70 mm [0.028 in.] and larger in diameter. For wire
sizes smaller in diameter than 0.70 mm [0.028 in.], the torsion
test may be substituted for the wrap test (7.2). In this case, the
minimum number of torsions to failure will be equivalent to 25
in a test length of 100d.
7.3.2 Number of tests—One test specimen shall be taken
from the top or outside end of each coil, reel, or spool and shall
be tested for conformance.
7.3.3 Test Method—Test specimens shall be prepared and
tested as shown in A 938 with the following exception. The

1540
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