1、Designation: F593 13a1F593 17Standard Specification forStainless Steel Bolts, Hex Cap Screws, and Studs1This standard is issued under the fixed designation F593; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revi
2、sion.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon () 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 NOTEThe equation in Table 4 was editorially corrected i
3、n August 2016.1. Scope*1.1 This specification covers the requirements for stainless steel bolts, hex cap screws, and studs 0.25 to 1.50 in., inclusive, innominal diameter in a number of alloys in common use and intended for service applications requiring general corrosion resistance.1.2 Seven groups
4、 of stainless steel alloys are covered, including thirteenfourteen austenitic, two ferritic, four martensitic, andone precipitation hardening.Group AlloysA ConditionB1 304, 305, 384, 304 L, (CW) cold workedC18-9LW, 302HQD18-9LW, 302HQ, 304J3D2 316, 316 L (CW) cold workedC3 321, 347 (CW) cold workedC
5、4 430E (CW) cold workedC5 410F (H) hardened and tempered6 431 (H) hardened and tempered7 630 (AH) age hardenedA Unless otherwise specified on the inquiry and order, the choice of an alloy from within a group shall be at the discretion of the fastener manufacturer (see 6.1).B See 4.2 for options.C Si
6、zes 0.75 in. and larger may be hot worked and solution annealed, provided the bolts comply with the cold worked (CW) mechanical property requirements.D When approved by the purchaser, Alloys 303, 303Se, or XM1 may be furnished.E When approved by the purchaser, Alloy 430F may be furnished.F When appr
7、oved by the purchaser, Alloys 416 or 416Se may be furnished.1.3 Supplementary requirements of an optional nature are provided, applicable only when agreed upon between themanufacturer and the purchaser at the time of the inquiry and order.1.4 Suitable nuts for use with bolts, hex cap screws, and stu
8、ds included in this specification are covered by Specification F594.Unless otherwise specified, all nuts used on these fasteners shall conform to the requirements of Specification F594, shall be ofthe same alloy group, and shall have a specified minimum proof stress equal to or greater than the spec
9、ified minimum full-sizetensile strength of the externally threaded fastener.1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.6 Thi
10、s standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.1.7 This international s
11、tandard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.1 Th
12、is specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous Fasteners.Current edition approved Dec. 1, 2013June 1, 2017. Published January 2014June 2017. Originally approved in 1978. Last previous edition approve
13、d in 2013 asF593 13.F593 13a1. DOI: 10.1520/F0593-13AE01.10.1520/F0593-17.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. Becauseit may not be technically possible to adequately d
14、epict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM Internat
15、ional, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12. Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless SteelsA276 Specification for Stainless Steel Bars and ShapesA342/A342M Tes
16、t Methods for Permeability of Weakly Magnetic MaterialsA380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and SystemsA484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and ForgingsA493 Specification for Stainless Steel Wire a
17、nd Wire Rods for Cold Heading and Cold ForgingA555/A555M Specification for General Requirements for Stainless Steel Wire and Wire RodsA564/A564M Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and ShapesA582/A582M Specification for Free-Machining Stainless Steel Bar
18、sA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsA967 Specification for Chemical Passivation Treatments for Stainless Steel PartsD3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specificat
19、ionsF594 Specification for Stainless Steel NutsF606F606/F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners,Washers, and Rivets (Metric) F0606_F0606M Direct Tension Indicators, and RivetsF1470 Practice for Fastener Sampling for Specified Mecha
20、nical Properties and Performance Inspection2.2 ASME Standards:3B1.1 Unified Inch Screw ThreadsB18.2.1 Square and Hex Bolts and Screws, Including Hex Cap Screws2.3 JIS Standard:4JIS G4309 Stainless Steel Wires3. Ordering Information3.1 Orders for bolts, hex cap screws, and studs under this specificat
21、ion shall include the following:3.1.1 Quantity (number of pieces of each item and size),3.1.2 Name of item (bolt, hex cap screw, stud, etc.),3.1.3 Size (nominal diameter, threads per inch, length; see Section 9),3.1.4 Alloy group number (see 6.1), and3.1.5 Condition (see 4.2).3.2 Orders for bolts, h
22、ex cap screws, and studs under this specification may include the following optional requirements:3.2.1 Forming (see 4.1.2),3.2.2 Rolled or cut threads (see 4.1.3),3.2.3 Composition (see 6.2),3.2.4 Corrosion Resistance (see 8.1),3.2.5 Finish (see 10.3),3.2.6 Rejection (see 16.1), and3.2.7 Test repor
23、t (see 17.2).3.2.8 Supplementary requirements, if any, to be specified on the order (see S1 through S8), and3.2.9 ASTM specification and year of issue. When year of issue is not specified, fasteners shall be furnished to the latest issue.NOTE 1Example 10 000 pieces, Hex Cap Screw, 0.250 in. 20 3.00
24、in., Alloy Group 1, Condition CW, Furnish Test Report, SupplementaryRequirement S3.4. Manufacture4.1 Manufacture:4.1.1 Specifications A276, A493, A564/A564M, and A582/A582M are noted for information only as suitable sources ofmaterial for the manufacture of bolts, hex cap screws, and studs to this s
25、pecification.4.1.2 FormingUnless otherwise specified, the fasteners shall be cold formed, hot formed, or machined from suitable materialat the option of the manufacturer.4.1.3 ThreadsUnless otherwise specified, the threads shall be rolled or cut at the option of the manufacturer.2 For referencedASTM
26、 standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from Global Engineering Documents, 15 Inverness Way, East Englewood,
27、CO 80112-5704, http:/.4 Available from Japanese Industrial Standards Committee (JIS) 1-3-1 Kasumigaski, Chiyoda-ku, Tokyo 100-8901, Japan. http:www.jisc.go.jpF593 1724.2 ConditionThe fasteners shall be furnished in the following conditions, unless specified to be furnished in one of theoptional cond
28、itions:Alloy GroupCondition Furnished UnlessOtherwise SpecifiedOptional Conditions (mustbe specified)1, 2, 3 CW AF, A, SH4 CW A5 H HT6 H HT7 AH noneA Machined from annealed or solution-annealed stock thus retaining theproperties of the original material; or hot-formed and solution annealed.AF Headed
29、 and rolled from annealed stock and then reannealed.AH Solution-annealed and age-hardened after forming.CW Headed and rolled from annealed stock thus acquiring a degree of coldwork. Sizes 0.75 in. and larger may be hot-worked and solution-annealed.H Hardened and tempered at 1050F (565C) minimum.HT H
30、ardened and tempered at 525F (274C) minimum.SH Machined from strain-hardened stock or cold-worked to develop thespecific properties.5. Heat Treatment5.1 Alloy Groups 1, 2, and 3 (Austenitic Alloys 303, 303Se, 304, 304 L, 305, 316, 316 L, 321, 347, 384, XM1, 18-9LW, 302HQ,and 302HQ):304J3):5.1.1 Cond
31、ition AWhen Condition A is specified, the austenitic alloys shall be heated to 1900 6 50F (1038 6 28C), atwhich time the chromium carbide will go into the solution, be held for a sufficient time, and then be cooled at a rate sufficient toprevent precipitation of the carbide and to provide the specif
32、ied properties.5.1.2 Condition CWWhen Condition CW is specified, the austenitic alloys shall be annealed in accordance with 5.1.1,generally by the raw material manufacturer and then cold worked to develop the specified properties.5.1.3 Condition AFWhen Condition AF is specified, the austenitic alloy
33、s shall be annealed in accordance with 5.1.1 after allcold working (including heading and threading) has been completed.5.2 Alloy Group 4 (Ferritic Alloys 430 and 430F):5.2.1 Condition AThe ferritic alloys shall be heated to a temperature of 1450 6 50F (788 6 28C), held for an appropriatetime, and t
34、hen air cooled to provide the specified properties.5.2.2 Condition CWWhen Condition CW is specified, the ferritic alloys shall be annealed in accordance with 5.2.1, generallyby the raw material manufacturer and then cold worked to develop the specified properties.5.2.3 Condition AFWhen ConditionAF i
35、s specified, the ferritic alloys shall be annealed in accordance with 5.2.1 after all coldworking (including heading and threading) has been completed.5.3 Alloy Group 5 (Martensitic Alloys 410, 416, and 416Se):5.3.1 Condition HWhen Condition H is specified, the MartensiticAlloys 410, 416, and 416Se
36、shall be hardened and temperedby heating to 1850 6 50F (1010 6 28C) sufficient for austenitization, held for at least 12 h and rapid air- or oil-quenched, andthen reheating to 1050F (565C) minimum for at least 1 h and air cooled to provide the specified properties.5.3.2 Condition HTWhen Condition HT
37、 is specified, the Martensitic Alloys 410, 416, and 416Se shall be hardened andtempered by heating to 1850 6 50F (1010 6 28C) sufficient for austenitization, held for at least 12 h and rapid air- oroil-quenched, and then reheating to 525F (274C) minimum for at least 1 h and air cooled to provide the
38、 specified properties.5.4 Alloy Group 6 (Martensitic Alloy 431):5.4.1 Conditions H and HTMartensitic Alloy 431 shall be hardened and tempered in accordance with 5.3.1 and 5.3.2 asapplicable.5.5 Alloy Group 7 (Precipitation Hardening Alloy 630):5.5.1 Condition AHPrecipitation Hardening Alloy 630 shal
39、l be solution annealed and aged by heating to 1900 6 25F (10386 14C) for at least 12 h and rapid air- or oil-quenched to 80F (27C) maximum, then reheating to a temperature of 1150 6 15F(621 6 8C) for 4 h and air cooled to provide the specified properties.6. Chemical Composition6.1 Alloy GroupsIt is
40、the intent of this specification that fasteners shall be ordered by alloy group numbers, which includealloys considered to be chemically equivalent for general purpose use. The alloy groupings are shown as follows. The purchaserhas the option of ordering a specific alloy, in stead of an alloy group
41、number, as permitted in 6.2.2.F593 173Alloy Group Alloys1 304, 304 L, 305, 384, 18-9LW, 302HQA1 304, 304 L, 305, 384, 18-9LW, 302HQ,304J3A2 316, 316 L3 321, 3474 430B5 410C6 4317 630A When approved by the purchaser, Alloys 303, 303Se, or XM1 may be furnished.B When approved by the purchaser, Alloy 4
42、30F may be furnished.C When approved by the purchaser, Alloys 416 or 416Se may be furnished.6.2 Chemical Composition Limits:6.2.1 Ordering by Alloy GroupUnless otherwise specified on the inquiry and order (see Supplementary Requirement S4), thechoice of an alloy from within a group shall be at the d
43、iscretion of the fastener manufacturer as required by his method of fastenerfabrication and material availability. The specific alloy used by the fastener manufacturer shall be clearly identified on anycertification required by the order and shall have a chemical composition conforming to the requir
44、ements of Table 1 for the specificalloy.6.2.2 Ordering by Specific AlloyWhen ordered by a specific alloy number, the fasteners shall conform to the chemicalcomposition limits of Table 1 for the specific alloy.6.3 Product Analysis:6.3.1 When performed, product analysis to determine chemical compositi
45、on shall be performed on at least one fullymanufactured finished fastener representing each lot. The chemical composition thus determined shall conform to the requirementsof Table 1 for the specified alloy or alloy group as appropriate, subject to the Product Analysis Tolerance in SpecificationsA484
46、/A484M and A555/A555M.6.3.2 In the event of discrepancy, a referee chemical analysis of samples from each lot shall be made in accordance with 14.1.7. Mechanical Properties7.1 The finished fasteners shall meet the applicable mechanical property and test requirements of Table 2 and Table 3 asappropri
47、ate for the specified alloy group and condition and shall be tested for conformance to the mechanical property requirementsas specified herein.7.2 Fasteners having a nominal thread diameter-length combination as follows:TABLE 1 Chemical RequirementsAlloyGroupUNSDesigna-tionAlloy Composition, % maxim
48、um except as shownCarbon Manga-nesePhos-phorusSulfur Silicon Chromium Nickel Copper Molybdenum OthersAustenitic Alloys1 S30300 303 0.15 2.00 0.20 0.15 min 1.00 17.0 to 19.0 8.0 to 10.0 . . . 0.60 maxA . . .1 S30323 303 Se 0.15 2.00 0.20 0.060 1.00 17.0 to 19.0 8.0 to 10.0 . . . . . . Se 0.15 min1 S3
49、0400 304 0.08 2.00 0.045 0.030 1.00 18.0 to 20.0 8.0 to 10.5 1.00 . . . . . .1 S30403 304 L 0.03 2.00 0.045 0.030 1.00 18.0 to 20.0 8.0 to 12.0 1.00 . . . . . .1 S30500 305 0.12 2.00 0.045 0.030 1.00 17.0 to 19.0 10.5 to 13.0 1.00 . . . . . .1 S38400 384 0.08 2.00 0.045 0.030 1.00 15.0 to 17.0 17.0 to 19.0 . . . 0.50 maxA . . .1 S20300 XM1 0.08 5.0 to 6.5 0.040 0.18 to 0.35 1.00 16.0 to 18.0 5.0 to 6.5 1.75 to 2.25 . . . . . .1 S30430 189LW 0.10 2.00 0.045 0.030 1.00 17.0 to 19.0 8.0 to 10.0 3.0 to 4.0
