1、AMERICAN NATIONAL WHSTANDARDHHP ANSI/ASTM A 412-75 Standard Specification for STAINLESS AND HEAT-RESISTING CHROMIUM-NICKEL-MANGANESE STEEL PLATE,SHEET,AND STRIP1 This Standard is issued under the fixed designation A 412;the number immediately following the designation indicates the year of original
2、adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.1.Scope 1.1 This specification2 covers annealed,and annealed and cold-rolled,chromium-nickel-manganese austenitic stainless and heat-re-sisting steel plate,sheet,and strip.1.1.
3、1 Type 201 is satisfactory for applica-tions where severe forming characteristics are not too important.Type 201 is nonmagnetic when annealed,but is magnetic after cold working.1.1.2 Type 202 is satisfactory for applica-tions where severe forming characteristics are important.Type 202 is nonmagnetic
4、 when annealed,but is slightly magnetic after cold working.1.1.3 Types XM-10 and XM-11 are intended for applications where normal forming charac-teristics are important.They are nonmagnetic in the annealed condition and also after 10 per-cent cold working.1.1.4 Type XM-14 is intended for applica-tio
5、ns requiring service at cryogenic tempera-tures:It is nonmagnetic in the annealed con-dition and slightly magnetic after cold working.1.1.5 Type XM-19 is intended for applica-tions requiring added corrosion resistance and high strength.It is readily formed and welded.1.1.6 Type XM-29 is intended for
6、 applica-tions requiring good formability and good weldability.It is nonmagnetic even when se-verely cold formed.NOTE 1The values stated in U.S.customary units are to be regarded as the standard.2.General Requirements for Delivery 2.1 Material furnished under this specifica-tion shall conform to the
7、 applicable require-ments of the current edition of ASTM Speci-fication A 480,General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet,and Strip.3 3.Ordering Information 3.1 Orders for material under this specifi-cation shall include the following information:3.1.1 Quantit
8、y(weight or number of pieces),3.1.2 3.1.3 3.1.4 3.1.5 3.1.6 480),3.1.7 Type(Table 1),3.1.8 ASTM designation and date of issue,and 3.1.9 Additions to the specification or spe-cial requirements.NOTE 2A typical ordering description is as fol-lows:100 pieces,high-strength cold-rolled stainless steel str
9、ip,0.050 by 16 by 120 in.,Type 201,Vi-Hard temper,tensile strength 150,000 psi min,ASTM A 412 dated 4.Process 4.1 The steel shall be made by one or more of the following processes:electric-arc,elec-Name of material(stainless steel),Condition(see Section 6),Dimensions,Form(plate,sheet,or strip),Edge,
10、strip only(see Specification A 1 This specification is under the jurisdiction of ASTM Committee A-l on Steel,Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.17 on Flat Stainless Steel Products.Current edition approved Sept.26,1975.Published December 1975.Origi
11、nally published as A 412-57 T.Last previous edition A 412-72.2 For ASME Boiler and Pressure Vessel Code ap-plications see related Specification SA-412 in Section II of that code.3 Annual Book of ASTM Standards,Part 3.303 NOTICE:This standard has either been superseded and replaced by a new version o
12、r withdrawnContact ASTM International(www.astm.org)for the lastest information A 412 trie-induction,or other suitable commercial processes.5.Chemical Requirements 5.1 The steel shall conform to the require-ments as to chemical composition specified in Table 1.6.Conditions 6.1 Sheet and strip may be
13、specified in one of the following conditions:Type Condition 201 annealed quarter-hard half-hard three quarter-hard full-hard 202 annealed quarter-hard XM-10 annealed cold rolled 10 percent XM-11 annealed cold rolled 10 percent XM-14 annealed XM-19 annealed XM-29 annealed 6.2 Plate may be specified i
14、n the hot-rolled annealed,hot-rolled annealed and descaled,or hot-rolled annealed and polished condition(see Section 9 of Specification A 480).7.Mechanical Requirements 7.1 The material shall conform to the re-quirements as to mechanical properties speci-fied in Table 2.8.Bend Test Specimens 8.1 Ben
15、d test specimens shall withstand cold bending without cracking when subjected to either the free-bend method or the con-trolled-bend(V-block)method at the condi-tion specified by Tables 3 or 4,respectively.The choice of method of test for materials in physical conditions other than annealed shall be
16、 at the option of the seller.8.2 The axis of the bend test specimen shall be parallel to the direction of rolling.8.3 The bend test specimen shall be bent around a diameter equal to the product of the bend factor times the nominal thickness of the test specimen.8.3.1 Free-bend test specimens shall be bent cold,either by pressure or by blows.However,in case of dispute,tests shall be made by pressure.8.3.2 Controlled-bend(V-block)test speci-mens shall be bent cold by means of V-blocks or a mating
