ASTM A417-93(1998)

Standard Specification for Steel Wire, Cold-Drawn, for Zig-Zag, Square-Formed, and Sinuous-Type Upholstery Spring Units

SCOPE
1.1 This specification covers round, uncoated, cold-drawn spring wire in coils having properties and quality intended for the manufacture of the following upholstery springs:
1.1.1 Type A—Zig-zag (U-formed),
1.1.2 Type B—Square-formed, and
1.1.3 Type C—Sinuous for furniture spring units.
1.2 These types of upholstery springs are used in the manufacture of automotive seat springs and furniture springs. The wire is not intended for the manufacture of mechanical springs.

General Information

• Status: Historical
• Publication Date: 14-Jul-1993
• ICS: 77.140.25 - Spring steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.03 - Steel Rod and Wire

Relations

• Replaced By: ASTM A417-93(2004) - Standard Specification for Steel Wire, Cold-Drawn, for Zig-Zag, Square-Formed, and Sinuous-Type Upholstery Spring Units (Withdrawn 2008)
• Effective Date: 01-Mar-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A 417 – 93 (Reapproved 1998)
Standard Specification for
Steel Wire, Cold-Drawn, for Zig-Zag, Square-Formed, and
Sinuous-Type Upholstery Spring Units
This standard is issued under the fixed designation A 417; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.5 ASTM designation and date of issue, and
3.1.6 Heat (cast) analysis (if desired).
1.1 This specification covers round, uncoated, cold-drawn
spring wire in coils having properties and quality intended for
NOTE 1—A typical ordering description is as follows: 50 000 lb
the manufacture of the following upholstery springs:
[15 000 kg] cold-drawn, upholstery, spring wire Type A for zig-zag-type
springs, Class 1, 200 to 300 ksi, size 0.148 in. [3.0 mm] in 2000-lb [700
1.1.1 Type A—Zig-zag (U-formed),
kg] coils to ASTM A 417, dated .
1.1.2 Type B—Square-formed, and
1.1.3 Type C—Sinuous for furniture spring units.
4. Manufacture
1.2 These types of upholstery springs are used in the
4.1 The steel shall be made by any of the following
manufacture of automotive seat springs and furniture springs.
processes: open-hearth, basic-oxygen, or electric-furnace.
The wire is not intended for the manufacture of mechanical
4.2 A sufficient discard shall be made to ensure freedom
springs.
from injurious piping and undue segregation.
2. Referenced Documents 4.3 The wire shall be cold-drawn to produce the desired
mechanical properties.
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing
5. Chemical Composition
of Steel Products
5.1 Upholstery spring wire for these types of springs is
A 700 Practices for Packaging, Marking, and Loading
3 customarily produced within the chemical ranges shown be-
Methods for Steel Products for Domestic Shipment
low. Chemical composition and processing may vary depend-
E 29 Practice for Using Significant Digits in Test Data to
4 ing on the gage of wire and specific use.
Determine Conformance With Specifications
A
Carbon, % 0.50 to 0.75
2.2 AIAG Standard:
A
Manganese, % 0.60 to 1.20
AIAG B-5 02.00 Primary Metals Identification Tag Appli-
Phosphorus, max, % 0.040
cation Standard Sulfur, max, % 0.050
3. Ordering Information
A
In any lot in which all the wire is of the same size and type, and submitted for
inspection at the same time, the carbon content shall not vary more than 0.20 %,
3.1 Orders for material under this specification should
and the manganese content shall not vary more than 0.30 %.
include the following information for each ordered item:
5.2 An analysis of each heat (cast) shall be made by the
3.1.1 Quantity (weight),
manufacturer to determine the percentage of elements specified
3.1.2 Name of material (name of specific type required)
above. The analysis shall be made from a test sample prefer-
(Section 1 and Table 1),
ably taken during the pouring of the heat (cast). The chemical
3.1.3 Diameter (Table 2),
composition thus determined shall be reported to the purchaser
3.1.4 Packaging, marking, and loading (Section 10),
or his representative upon request.
6. Mechanical Properties
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
Stainless Steel and Related Alloys, and is the direct responsibility of Subcommittee 6.1 Tension Test:
A01.03 on Steel Rod and Wire.
6.1.1 Requirements—The material as represented by tension
Current edition approved July 15, 1993. Published September 1993. Originally
test specimens shall conform to the requirements prescribed in
published as A 417 – 57 T. Last previous edition A 417 – 90.
Table 1 for the various sizes and specified types.
Annual Book of ASTM Standards, Vol 01.03.
Annual Book of ASTM Standards, Vol 01.05.
6.1.2 Number of Tests—One test specimen shall be taken for
Annual Book of ASTM Standards, Vol 14.02.
each ten coils, or fraction thereof, in a lot. Each heat in a given
Available from the Automotive Industry Action Group, 26200 Lahser, Suite
lot shall be tested.
200, Southfield, MI 48034.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 417 – 93 (1998)
A
TABLE 1 Tensile Strength Requirements
7. Dimensions and Permissible Variations
7.1 The diameter of the wire shall not vary from that
B
Tensile Strength, ksi Tensile Strength, ksi
Diameter
C C
specified by more than the tolerances specified in Table 2.
(MPa) (MPa)
Decimal Size, Wire Gage
in. [mm]
min max min max
8. Workmanship
Type A, Zig-Zag Type Automobile Seat and Back Spring Units
8.1 Surface Condition—The surface of the wire as received
Class I Class II
shall be smooth and shall have a uniform finish suitable for
0.092 [2.4] 13 220 250 230 260
shaping the various type springs. No serious die marks,
0.106 [2.6] 12 215 245 225 255
0.120 [3.0] 11 210 240 215 245
scratches, or seams may be present.
0.135 [3.5] 10 205 235 210 240
8.2 The wire shall be properly cast. To test for cast, a few
0.148 [3.8] 9 200 230 210 240
convolutions of wire shall be cut from the coil and allowed to
0.162 [4.2] 8 190 220 200 230
fall on a flat surface. The wire shall lie substantially flat on
Type B, Square-Formed Type Automobile Seat and Back Spring Units
itself and shall not spring up and show a wavy condition.
0.092 [2.4] 13
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