Transcript
Designation: A493 − 09 (Reapproved 2013)
Standard Specification for
Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging1 This standard is issued under the fixed designation A493; the number immediately following the designation indicates the year of original origin al adoption or, in the case of revis revision, ion, the year of last revision. revision. A number in paren parenthese thesess indicates the year of last reappr reapproval. oval. 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.
3.1.8 Coil size (inside and outside diameter), diameter), 3.1.9 Specia Speciall requirements, requirements, and 3.1.10 Supplementary requirements. requirements.
1. Sco Scope* pe* 1.1 This specification specification covers cold-finished cold-finished and hot-fi hot-finished nished stainle stai nless ss ste steel el wir wiree and wire rods for col cold d hea headin ding g or col cold d forging forg ing for applications, applications, such as fasten fasteners, ers, where corro corrosion sion resistance is a factor.
4. General Requirements Requirements for Delivery Delivery 4.1 In addition to the requirements requirements of this specification, specification, all requir req uireme ements nts of the cur curren rentt edi editio tions ns of Spe Specific cificatio ation n A555/ A555M shal shalll ap appl ply y. Fai Failu lure re to co comp mply ly wi with th th thee ge gene nera rall requirement requi rementss of Specifi Specification cation A555/A555M A555/A555M constitut constitutes es nonconformanc confo rmancee with this specifi specification. cation.
1.2 The values stated in inch-poun inch-pound d units are to be regar regarded ded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 2. Referenc Referenced ed Documents Documents
NOTE 1—A typical ordering description is as follows: 5000 lb (2268 kg) 0.225 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, ASTM Specification A493 – XX. End use: hex head machine bolts.
2.1 ASTM Standards:2 A262 Practices A262 Practices for Detectin Detecting g Suscep Susceptibility tibility to Inter Intergranu granular lar Attack in Austenitic Stainless Steels A555/A555M Specifi Specification cation for Gener General al Requir Requirements ements for Stainless Steel Wire and Wire Rods A751 Test A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
5. Manu Manufactu facture re 5.1 Heat Treatment: 5.1.1 Austen Austenitic itic grades shall be annealed at 1800 1800°F °F (980°C) minimum, so that grain boundary carbides enter into solution, and rapidly quenched to prevent grain boundary precipitation of car carbid bides es that wou would ld cau cause se sus suscep ceptib tibilit ility y to int interg ergran ranula ularr corrosion. See Supplementary Requirements. 5.1.2 5.1 .2 Fer Ferrit ritic ic and martensit martensitic ic gra grades des sha shall ll be ann anneale ealed d to meet the requirements for mechanical properties.
3. Orde Ordering ring Information Information 3.1 It is the responsi responsibil bility ity of the purchaser purchaser to spe specif cify y all requirements that are necessary for material ordered under this specific spe cificatio ation. n. Suc Such h req requir uiremen ements ts may incl include ude,, but are not limited to the following: 3.1.1 Quanti Quantity ty (weight), 3.1.2 Size (diameter), (diameter), 3.1.3 Type or UNS number (see Table 1), 1), 3.1.4 Name (wire or wire rods), rods), 3.1.5 ASTM designation designation and issue date, 3.1.6 Condit Condition ion (see 5.2 (see 5.2), ), 3.1.7 Coating (see (see 5.3 5.3)),
5.2 Condition: 5.2. 5. 2.1 1 Wire Wire sh shall all be fu furn rnis ishe hed d in on onee of th thee fo follo llowi wing ng conditions: 5.2.1.1 5.2.1 .1 Lightl Lightly y drafted (normal condition condition and need not be specified if this is condition desired), 5.2.1.2 5.2.1 .2 Annea Annealed, led, or 5.2.1. 5.2 .1.3 3 Drafted Drafted to a spe specifi cified ed tens tensile ile str streng ength th ran range ge (as agreed upon between purchaser and producer). 5.2.2 5.2 .2 Rod Rodss sha shall ll be fur furnis nished hed in the ann anneale ealed d con conditi dition, on, scale remov removed. ed.
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This specification is under the jurisdiction of ASTM Committee A01 A01 on on Steel, Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee A01.17 on A01.17 on Flat-Rolled and Wrought Stainless Steel. Current Curre nt editi edition on approv approved ed Oct. 1, 2013. Published Published October 2013. Originally Originally approved approv ed in 1963. Last previous edition approved approved in 2009 as A493 – 09. DOI: 10.1520/A0493-09R13. 2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at
[email protected]. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.
5.3 Coatings and Lubricants: 5.3. 5. 3.1 1 Co Coati ating ngss ar aree ne nece cess ssar ary y fo forr mo most st co cold ld-h -hea eadi ding ng or forming operations. An electroplated copper coating is often used. The following coatings may be specified: copper, lime, or special (as agreed upon between purchaser and producer). 5.3.2 5.3 .2 Lub Lubric ricants ants are app applied lied over the coa coating ting during during the finall dra fina drafti fting ng ope operati ration on per perfor formed med by the pro produc ducer er.. Soa Soap p is
*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
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A493 − 09 (2013) TABLE 1 Chemical Requirements Grade UNS Designation
Composition, % AISI Type
Carbon, maxA
Manganese, max
Phosphorus, max
Sulfur, max
Silicon, max
Chromium
Nickel
Copper
8 . 0 – 1 0 .0 8 . 0 – 1 0 .5 8. 0– 1 2. 0 8 .0 – 1 0 .0 1 0 .5 – 1 3 .0 10.0–14.0 10 10.0–14.0 10 1 7 .0 – 1 9 .0
1 .0 0 m a x 1 .0 0 m a x 1 .0 0 m a x 3.0–4.0 3. 1 .0 0 m a x 1.
M ol y b denum
Nitrogen, maxA
Other Elements
Austenitic Grades S 30 20 0 S 30 40 0 S 30 40 3 S 30 43 0 S 30 50 0 S 31 60 0 S 31 60 3 S 38 40 0
3 02 3 04 3 04 L 3 05 31 3 16 3 16 L 3 84
0 .1 5 0 .0 8 0 .0 3 0 0 .0 3 0 .0 4 0 .0 8 0 .0 3 0 0 .0 4
2 .0 0 2 .0 0 2. 00 2 .0 0 2 .0 0 2 .0 0 2. 00 2 .0 0
0 .0 4 5 0 .0 4 5 0 .0 4 5 0. 04 5 0 .0 4 5 0 .0 4 5 0 .0 4 5 0 .0 4 5
0. 03 0 0. 03 0 0 .0 3 0 0. 03 0 0. 03 0 0. 03 0 0 .0 3 0 0. 03 0
1 .0 0 1 .0 0 1 .0 0 1. 00 1 .0 0 1 .0 0 1 .0 0 1 .0 0
1 7 . 0 – 1 9 .0 1 8 . 0 – 2 0 .0 1 8. 0– 2 0. 0 1 7 .0 – 1 9 .0 1 7 . 0 – 1 9 .0 1 6 . 0 – 1 8 .0 1 6. 0– 1 8. 0 1 5 . 0 – 1 7 .0
0 .1 0 0 .1 0 0 .1 0
2 .0 0 – 3 .0 0 2 .0 0 – 3 .0 0
0 .1 0 0. 10
Ferritic Grades S 40 94 0
0 .0 6
1 .0 0
0. 04 5
0. 04 0
1. 00
10.5–11.7
0 .5 0 m a x
S 42 90 0 S 43 00 0 S 44 40 1
4 29 4 30 ...
0 .1 2 0 .0 4 0 .0 2 5
1 .0 0 1 .0 0 1 .0 0
0 .0 4 0 0 .0 4 0 0 .0 4 0
0. 03 0 0. 03 0 0 .0 3 0
1 .0 0 1 .0 0 ...
1 4 . 0 – 1 6 .0 1 6 . 0 – 1 8 .0 1 7 .5 – 1 9 .5
1 .0 0 m a x
S 44625B
...
0.010B
0 .4 0
0 .0 2 0
0 .0 2 0
0. 40
2 5. 0– 2 7. 5
0. 50 m a x
S 44700B
...
0.010B
0 .3 0
0 .0 2 5
0 .0 2 0
0. 20
2 8. 0– 3 0. 0
S 44800B
...
0.010B
0 .3 0
0 .0 2 5
0 .0 2 0
0. 20
2 8. 0– 3 0. 0
Cb 10XC–0.75
1 .7 5 – 2 .5 0
0. 03 5
Ti+Cb 0.20+4× (C+N)−0.80
0. 2 m a x
0 .7 5 – 1 . 5 0
0.015B
0. 15 m a x
0 .1 5 m a x
3. 5– 4. 2
0.020B
2 . 0 0 – 2 .5 0
0. 15 m ax
3 .5 – 4 .2
0.020B
Ni+Cu 0.5 max C+N 0.025 max C+N 0.025 max
2 .0 0 – 3 .0 0
0 .4 0 – 0 .8 5 1..00–3.00 1
Martensitic Grades S 41 00 0 S 42 01 0 S 42 03 0 S 43 10 0 S 44 00 4 A B
4 10 ... ... 4 31 4 40 C
0 .1 5 0 .1 5 – 0 . 3 0 0 .3 0 0 .2 0 0. 95 – 1. 20
1 .0 0 1 .0 0 1 .0 0 1 .0 0 1 .0 0
0 .0 4 0 0 .0 4 0 0 .0 4 0 0 .0 4 0 0. 04 0
0. 03 0 0. 03 0 0 .0 3 0 0. 03 0 0 .0 3 0
1 .0 0 1 .0 0 1 .0 0 1 .0 0 1. 00
11.5–13.5 1 3 . 5 – 1 5 .0 1 2. 0– 1 4. 0 1 5 . 0 – 1 7 .0 1 6 .0 – 1 8 .0
0. 35 – 0. 85 1 .2 5 – 2 .5 0
0 .7 5 m a x
Maximum, unless otherwise indicated. Product analysis tolerance over the maximum limit for carbon and nitrogen to be 0.002 %.
generally genera lly use used. d. The fol follow lowing ing lub lubrica ricants nts may be spe specifi cified: ed: soap, grease, or special (as agreed upon between purchaser and producer).
passing Practice E of Practices A262. A262. When Supplementary Requirement Requir ement S1 is invok invoked, ed, all austen austenitic itic grades shall be tested and pass Practice E of Practices A262 A262..
6. Chemical Requirement Requirementss
9. Pack Packagin aging g and Package Package Marking
6.1 The steel shall conform conform to the requirements requirements for chemical composition compo sition specified in in Table Table 1. 1.
9.1 Packaging— Coils Coils shall be bundled or boxed in such a manner man ner as to ass assure ure safe del deliver ivery y to the their ir des destin tinatio ation n whe when n properly transported by any common carrier.
6.2 Methods Methods and pra practic ctices es rela relatin ting g to che chemic mical al ana analys lysis is required by this specification shall be in accordance with Test Methods, Practices, and Terminology A751 A751..
9.2 Markings— Each Each lift, bundle, or box shall be properly tagged with durable tags (metal, plastic, or equivalent), showing size size,, gra grade, de, cold cold-he -headi ading ng wir wire, e, con conditi dition on coa coatin ting, g, hea heatt number, and ASTM A493.
7. Mechanical Requirem Requirements ents 7.1 The material material sha shall ll con confor form m to the requirem requirements ents as to mechanical mechan ical prop properties erties specified in Table Table 2. Material can be manufactured to tensile strength ranges other than those shown in Table in Table 2. 2. The producer should be consulted when material is required to tensile strength ranges other than those specified.
10. Keyw Keywords ords 10.1 austen austenitic itic stainless steel; ferritic stainless steel; martensitic stainless steel; stainless steel cold forging wire; stainless steel cold heading wire
8. Resistance to Intergranular Intergranular Corrosion Corrosion 8.1 8. 1 All au aust sten eniti iticc gr grad ades es in th thee an anne neal aled ed co cond nditi ition on or annealed anneale d and lig lightly htly drafted drafted con condit dition ion sha shall ll be cap capabl ablee of
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A493 − 09 (2013) TABLE 2 Mechanical Property Requirements for Lightly Drafted and Annealed Wire
NOTE 1— This table applies to sizes 0.100 in. (2.5 mm) and larger. For smaller sizes, similar mechanical properties apply to ferritic and martensitic grades; howev grades; however er the produ producer cer shou should ld be consu consulted lted regarding somewhat somewhat higher tensile properties applicable applicable to austen austenitic itic grades. Grade UNS No.
As-Annealed Type No.
k s i m ax .
Lightly Drafted MPa max .
k s i max .
MPa max.
6 55 6 20 620 6 05 5 85 6 20 585 5 50
105 105 1 02 96 95 95 93 85
725 725 7 05 6 60 65 5 65 5 640 58 5
48 5 4 85 5 20 5 50 69 0 69 0 69 0
80 90 86 90 1 05 1 05 1 05
55 0 62 0 59 5 6 20 725 725 725
5 65 69 0 76 0 760 76 0
85 1 05 115 115 120
58 5 725 795 7 95 830
Austenitic Grades S 30 20 0 S 30 40 0 S 30 40 3 S 30 43 0 S 30 50 0 S 31 60 0 S 31 60 3 S 38 40 0
30 2 30 4 3 0 4L ... 30 5 31 6 3 1 6L 38 4
95 90 90 88 85 90 85 80 Ferritic Grades
S 40 94 0 S 42 90 0 S 43 00 0 S 44 40 1 S 44 62 5 S 44 70 0 S 44 80 0
409Cb 42 9 43 0 ... ... ... ...
70 85 75 80 1 00 1 00 1 00 Martensitic Grades
S 41 00 0 S 42 01 0 S 42 03 0 S 43 10 0 S 44 00 4
41 0 ... ... 43 1 44 0 C
82 1 00 110 110 110
SUPPLEMENTARY REQUIREMENTS The following may be required when the purchase order so specifies:
S1. Auste Austeniti niticc Grades S1.1 Austen Austenitic itic grades shall shall be tested and pass the test for intergranular susceptibility in accordance with Practice E of Practices A262 Practices A262..
SUMMARY OF CHANGES Committee A01 has identified the location of selected changes to this standard since the last issue (A493 – 95 (2004)) that may impact the use of this standard. (Approved April 1, 2009.) (1) UNS S442030 added to Table 1 and and Table Table 2. 2.
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