Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

SCOPE
1.1 This specification covers cold-finished and hot-finished stainless steel wire and wire rods for cold heading or cold forging for applications, such as fasteners, where corrosion resistance is a factor.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents are in parentheses and may be approximate.

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ASTM A493-95(2000) - Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 493 – 95 (Reapproved 2000)
Standard Specification for
Stainless Steel Wire and Wire Rods for Cold Heading and
Cold Forging
This standard is issued under the fixed designation A 493; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.9 Special requirements, and
3.1.10 Supplementary requirements.
1.1 This specification covers cold-finished and hot-finished
stainless steel wire and wire rods for cold heading or cold
4. General Requirements for Delivery
forging for applications, such as fasteners, where corrosion
4.1 In addition to the requirements of this specification, all
resistance is a factor.
requirements of the current editions of Specification A 555/
1.2 The values stated in inch-pound units are to be regarded
A 555M shall apply. Failure to comply with the general
as the standard. The SI equivalents are in parentheses and may
requirements of Specification A 555/A 555M constitutes non-
be approximate.
conformance with this specification.
2. Referenced Documents
NOTE 1—A typical ordering description is as follows: 5000 lb (2268 kg)
2.1 ASTM Standards:
.225 in. (5.72 mm) round Type 305 cold heading wire, lightly drafted,
copper coated, 32 in. (813 mm) max OD—22 in. (559 mm) min ID, coils,
A 262 Practices for Detecting Susceptibility to Intergranu-
ASTM Specification A 493 – XX. End use: hex head machine bolts.
lar Attack in Austenitic Stainless Steels
A 555/A555M Specification for General Requirements for
5. Manufacture
Stainless Steel Wire and Wire Rods
5.1 Heat Treatment:
A 751 Test Methods, Practices, and Terminology for
5.1.1 Austenitic grades shall be annealed at 1800°F (980°C)
Chemical Analysis of Steel Products
minimum, so that grain boundary carbides enter into solution,
3. Ordering Information and rapidly quenched to prevent grain boundary precipitation
of carbides that would cause susceptibility to intergranular
3.1 It is the responsibility of the purchaser to specify all
corrosion. See Supplementary Requirements.
requirements that are necessary for material ordered under this
5.1.2 Ferritic and martensitic grades shall be annealed to
specification. Such requirements may include, but are not
meet the requirements for mechanical properties.
limited to the following:
5.2 Condition:
3.1.1 Quantity (weight),
5.2.1 Wire shall be furnished in one of the following
3.1.2 Size (diameter),
conditions:
3.1.3 Type or UNS number (see Table 1),
5.2.1.1 Lightly drafted (normal condition and need not be
3.1.4 Name (wire or wire rods),
specified if this is condition desired),
3.1.5 ASTM designation and issue date,
5.2.1.2 Annealed, or
3.1.6 Condition (see 5.2),
5.2.1.3 Drafted to a specified tensile strength range (as
3.1.7 Coating (see 5.3),
agreed upon between purchaser and producer).
3.1.8 Coil size (inside and outside diameter),
5.2.2 Rods shall be furnished in the annealed condition,
scale removed.
5.3 Coatings and Lubricants:
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
5.3.1 Coatings are necessary for most cold-heading or
A01.17on Flat Stainless Steel Products.
forming operations. An electroplated copper coating is often
Current edition approved Jan. 15, 1995. Published March 1995. Originally
used. The following coatings may be specified: copper, lime, or
published as A 493 – 63. Last previous edition A 493 – 94.
Annual Book of ASTM Standards, Vols 01.03. special (as agreed upon between purchaser and producer).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 493 – 95 (2000)
TABLE 1 Chemical Requirements
Grade Composition, %
UNS AISI Carbon, Manga- Phos- Sulfur, Silicon, Chromium Nickel Copper Molyb- Nitrogen, Other
A A
Designation Type max nese, phorus, max max denum max Elements
max max
Austenitic Grades
S 30200 302 0.15 2.00 0.045 0.030 1.00 17.0–19.0 8.0–10.0 1.00 max† 0.10
S 30400 304 0.08 2.00 0.045 0.030 1.00 18.0–20.0 8.0–10.5 1.00 max† 0.10
S 30403 304L 0.030 2.00 0.045 0.030 1.00 18.0–20.0 8.0–12.0 1.00 max† 0.10
S 30430 0.03 2.00 0.045 0.030 1.00 17.0–19.0 8.0–10.0 3.0–4.0
S 30500 305 0.04 2.00 0.045 0.030 1.00 17.0–19.0 10.5–13.0 1.00 max
S 31600 316 0.08 2.00 0.045 0.030 1.00 16.0–18.0 10.0–14.0 2.00–3.00 0.10
S 31603 316L 0.030 2.00 0.045 0.030 1.00 16.0–18.0 10.0–14.0 2.00–3.00† 0.10
S 38400 384 0.04 2.00 0.045 0.030 1.00 15.0–17.0 17.0–19.0
Ferritic Grades
S 40940 0.06 1.00 0.045 0.040 1.00 10.5–11.7 0.50 max Cb 10XC–0.75
S 42900 429 0.12 1.00 0.040 0.030 1.00 14.0–16.0
S 43000 430 0.04 1.00 0.040 0.030 1.00 16.0–18.0
S 44401 . . . 0.025 1.00 0.040 0.030 . . . 17.5–19.5 1.00 max 1.75–2.50 0.035 Ti+Cb 0.20+43
(C+N)−0.80
B B
...

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