1、Designation:A 629 88(Reapproved 1994)e1Standard Specification forTool-Resisting Steel Flat Bars and Shapes for SecurityApplications1This standard is issued under the fixed designation A 629;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revi
2、sion,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.e1NOTESection 10 was added editorially in June 1994.1.Scope1.1 This specification covers the requirements for perfor
3、-mance characteristics including simulated service tests andtesting equipment for determining the characteristics of homo-geneous steel flat bars and shapes except those covered bySpecification A 627,and Specification A 628.This does notpreclude the possibility of severing or penetrating this materi
4、alby cutting means other than that described herein.Thismaterial can be severed with tungsten/carbide coated or tippedsaws.2.Referenced Documents2.1 ASTM Standards:A 627 Specification for Homogeneous Tool-Resisting SteelBars for Security Applications2A 628 Specification for Tool-Resisting Composite
5、SteelPlates for Security Applications3E 329 Specification for Agencies Engaged in the Testingand/or Inspection of Materials Used in Construction42.2Other Documents:U.S.Federal Specification GG-B-451d,dated April 11,1960,andAmendments 1,2,and 3:Blade,Hand Hacksawand Blade,Power Hacksaw.53.Terminology
6、 Definitions3.1 equipment manufacturera manufacturer who fabri-cates and assembles security products,including tool-resistingsteel enclosures,for installation in areas requiring securityagainst ingress and egress.This manufacturer processes semi-finished materials to produce a finished product fabri
7、cated intocomponents and is responsible for all heat-treating and otherfabricating processes to obtain the performance characteristicsspecified herein.The manufacturer is also responsible forfabricating and assembling ancillary items so as not to impairthe performance characteristics of the product.
8、3.2 homogeneous steelone which is nominally of uniformchemistry throughout.3.3 lotall flat bars and shapes of the same nominaldimensions from the same mill heat.3.4 testing laboratorya recognized testing laboratory ca-pable of complying with Recommended Practice E 329,se-lected by the equipment manu
9、facturer.4.Ordering Information4.1 Orders for products under this specification shall includethe following information:4.1.1 Name of material,4.1.2 Dimensions(thickness,width,web thickness,andother descriptions of special shapes),4.1.3 ASTM designation(A 629)and date of issue,4.1.4 Test reports(if r
10、equired),4.1.5 Certifications(if required),and4.1.6 Special requirements,if any.5.Chemical Requirements5.1 The selection of chemical composition shall be at thediscretion of the equipment manufacturer.6.Mechanical Requirements6.1 Cutting Test:6.1.1 RequirementsThe flat bar or shape shall not becompl
11、etely severed during the test.6.1.2 Number of Specimens:6.1.2.1 The equipment manufacturer shall take three heat-treated specimens no less than 7 in.(178 mm)in length fromthe lot for which the test is conducted.6.1.2.2 The testing laboratory shall select one specimen forconduct of the cutting test.1
12、This specification is under the jurisdiction of ASTM Committee F-33 onDetention and Correctional Facilities and is the direct responsibility of Subcommit-tee F33.02 on Physical Barriers.Current edition approved April 29,1988.Published July 1988.Originallypublished as A 629 68.Last previous edition A
13、 629 77(1981).2Annual Book of ASTM Standards,Vol 04.07.3Discontinued;see 1982 Annual Book of ASTM Standards,Vol 01.03.4Annual Book of ASTM Standards,Vol 14.02.5Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.1Copyright ASTM I
14、nternational,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.6.1.3 Test Method:6.1.3.1 The testing laboratory shall be responsible for de-termining that all hacksaw blades used comply with U.S.Federal Specification GG-B-451d,Type 1,Grade A,Class 2,nominal length 12 in
15、.(305 mm),18 teeth/in.(710 teeth/m).6.1.3.2 The test shall be conducted on a 6 by 6-in.or 152 by152-mm,gravity-feed,power-hacksaw machine under thefollowing conditions:Blade tension400 lbf(1779 N)Gravity feed pressure16 6 1lbf(71 6 4 N)Maximum lift on return strokes0.125 in.(3.18 mm)Speed60 strokes/
16、minLength of stroke6 in.(152 mm)Cutting fluidnone6.1.3.3 The cutting resistance of the specimen shall bedetermined by placing it firmly in a vice underneath the sawblade in the power hacksaw with the narrowest dimensions ofthe shape in contact with the saw blade,and causing 18 000cutting cycles of the saw to be made on the shape at one point.The point at which the cutting test is conducted shall be not lessthan12in.(12.7 mm)from either end of the specimen.Thedirection of cut shall be perpendicul
