1、Designation: F593 02 (Reapproved 2008)1F593 13Standard 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
2、year of last revision.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 Department of Defense.1 NOTE1.4 and 2.1 were editorially corrected
3、in January 2012.1. Scope 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 Seve
4、n groups of stainless steel alloys are covered, including twelve austenitic, two ferritic, four martensitic, and oneprecipitation hardening.Group AlloysA ConditionB1 304, 305, 384, 304 L, (CW) cold workedC18-9LW, 302HQD2 316, 316 L (CW) cold workedC3 321, 347 (CW) cold workedC4 430E (CW) cold worked
5、C5 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 Sizes 0.75 in. and larger
6、 may be hot worked and solution annealed. 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 approved by the p
7、urchaser, 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 studs included i
8、n 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 specified minimum
9、 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 This standard do
10、es 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.2. Referenced Documents2.1 ASTM Stand
11、ards:2A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless SteelsA276 Specification for Stainless Steel Bars and ShapesA342/A342M Test Methods for Permeability of Feebly Magnetic Materials1 This specification is under the jurisdiction of ASTM Committee F16 on F
12、asteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous Fasteners.Current edition approved May 1, 2008April 1, 2013. Published August 2008June 2013. Originally approved in 1978. Last previous edition approved in 20022008 asF593 02(2008) 21. DOI: 10.1520/F0593-02R08E01.10.1520/
13、F0593-02R13.2 For referencedASTM 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.This document is not an ASTM standard and is inte
14、nded 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 depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the curre
15、nt 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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1A380 Practice for Cleaning, Desc
16、aling, 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 and Wire Rods for Cold Heading and Cold ForgingA555/A555M Specification for General Requ
17、irements 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 BarsA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsA
18、967 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 SpecificationsF594 Specification for Stainless Steel NutsF606 Test Methods for Determining the Me
19、chanical Properties of Externally and Internally Threaded Fasteners, Washers, DirectTension Indicators, and RivetsF1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection2.2 ASME Standards:3B1.1 Unified Inch Screw ThreadsB18.2.1 Square and Hex Bolts and Scr
20、ews, Including Hex Cap Screws3. Ordering Information3.1 Orders for bolts, hex cap screws, and studs under this specification 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
21、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, hex 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 Compositi
22、on (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 report (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 s
23、pecified, fasteners shall be furnished to the latest issue.NOTE 1Example 10 000 pieces, Hex Cap Screw, 0.250 in. 20 3.00 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 no
24、ted for information only as suitable sources ofmaterial for the manufacture of bolts, hex cap screws, and studs to this specification.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 Thr
25、eadsUnless otherwise specified, the threads shall be rolled or cut at the option of the manufacturer.4.2 ConditionThe fasteners shall be furnished in the following conditions, unless specified to be furnished in one of theoptional conditions:Alloy GroupCondition Furnished UnlessOtherwise SpecifiedOp
26、tional Conditions (mustbe specified)1, 2, 3 CW AF, A, SH4 CW A5 H HT6 H HT7 AH none3 Available from Global Engineering Documents, 15 Inverness Way, East Englewood, CO 80112-5704, http:/.F593 132A Machined from annealed or solution-annealed stock thus retaining theproperties of the original material;
27、 or hot-formed and solution annealed.AF Headed 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 Hard
28、ened and tempered at 1050F (565C) minimum.HT Hardened 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, X
29、M1, 18-9LW, and302HQ):5.1.1 Condition 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 c
30、arbide and to provide the specified 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
31、 specified, the austenitic alloys 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), he
32、ld for an appropriatetime, and then 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.
33、3 Condition AFWhen ConditionAF is 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 Marten
34、siticAlloys 410, 416, and 416Se 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
35、.2 Condition HTWhen Condition HT 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
36、 h and air cooled to provide the 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 AHPrecip
37、itation Hardening Alloy 630 shall 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 C
38、omposition6.1 Alloy GroupsIt is 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 al
39、loy, in stead of an alloy group number, as permitted in 6.2.2.Alloy Group Alloys1 304, 304 L, 305, 384, 18-9LW, 302HQA2 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 430F may be furnished
40、.C When approved by the purchaser, Alloys 416 or 416Se may be furnished.6.2 Chemical Composition Limits:F593 1336.2.1 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 discretion of
41、 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 requirements of Ta
42、ble 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 composition shall be
43、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/A484M and A
44、555/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 asappropriate for the
45、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:Thread Diameter, in. Thread Length, in.0.75 or lessOver 0.752.25 D or longer3 D or longerand
46、 a breaking load of 120 000 lbf (535 kN) or less shall be tested full size and shall meet the full-size tensile (minimum andmaximum) and yield strength requirements in Table 2 for the specified alloy.7.3 Fasteners having a nominal thread diameter-length combination in accordance with 7.2 and a break
47、ing load exceeding120 000 lbf (535 kN) shall be tested full-size and shall meet the full size tensile (minimum and maximum) and yield strengthproperties in Table 2. When equipment of sufficient capacity for such tests is not available, or if excessive length of the fastenersmakes full-size testing i
48、mpractical, use of standard or round specimens that meet the “machined specimen test tensile properties”in Table 2 is permitted. In the event of discrepancy or dispute between test results obtained from full-size finished fasteners andstandard or round specimens, the referee method shall be tests pe
49、rformed on full-size finished fasteners.7.4 Fasteners that are too short (lengths less than that specified in 7.2 (see Test Methods F606 and Table 4); have insufficientthreads for tension; or have drilled or undersized heads, drilled or reduced bodies, and so forth, that are weaker than the threadsection, shall not be subject to tension tests but shall conform to the hardness (minimum and maximum) requirements of Table 2.TABLE 1 Chemical RequirementsAlloyGroupUNSDesigna-tionAlloy Composition, % maximum e
