1、Designation: A 1067 10Standard Specification forTest Coupons for Steel Castings1This standard is issued under the fixed designation A 1067; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pare
2、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This standard defines the geometries of severalseparately-cast and integrally-cast test coupons for use asspecified in the applicable casting produc
3、t or common require-ments standard. This standard does not address procedures formolding, casting, heat treating, machining, or testing; theseitems are addressed as needed and appropriate by the appli-cable product or common requirements standard.NOTE 1The test coupons described herein were formerly
4、 defined inmultiple casting specifications. Those standards now reference this docu-ment when test coupons are required and should be consulted forapplicable manufacturing and processing requirements.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as s
5、tandard. Thevalues stated in each system may not be exact equivalents;therefore, each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard.1.3 This standard does not purport to address all of thesafety concerns, if any,
6、 associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Ordering Information2.1 The applicable casting product standard or commonrequirements standa
7、rd or both provide information regardingthe number of coupons, molding materials to be used, heattreatment concerns, and other processing issues.3. Materials and Manufacture3.1 Unless specified otherwise by the purchaser, test cou-pons shall be poured from the same heat, or from the samemaster heat,
8、 or from a sub-heat from the same master heat asthe castings they are to represent.3.2 Except where specified herein or in the applicableproduct or common requirements standard, the details of thegating and risering of the coupons are left to the discretion ofthe producer.3.3 The test coupons shall
9、be processed and heat-treated asspecified in the applicable product or common requirementsspecification. Except when specified otherwise, the portion ofthe test coupon from which the test specimen or specimens areto be machined may be cut from the riser or feeder prior to heattreatment.4. Performanc
10、e Requirements4.1 The primary function of the test coupon is to providesound specimens useable for the determination of mechanical,physical, corrosion, or other properties of the metal used toproduce the castings. If the test results conform to the statedrequirements, then the test coupon may be con
11、sidered to havefunctioned acceptably.5. Other Requirements5.1 The casting producer shall establish procedures for theidentification and traceability of the coupons from pouringthrough testing.6. Dimensions and Permissible Variations6.1 The drawings shown in this standard are not necessarilydrawn to
12、scale. The values shown in the tables constitute thedimensional requirements.6.2 The drawings shown in this standard depict the morecommonly used test coupons (Figs. 1-8). Other designs may besuitable when shown to produce acceptable properties or whereagreed.7. Workmanship, Finish and Appearance7.1
13、 Care should be taken in the preparation and pouring ofthe molds to avoid the creation of inclusions or other anomaliesin the resulting test specimens.8. Sampling8.1 Care shall be taken in the production and processing ofthe test coupon to assure that it is representative of the castingor castings i
14、t represents.9. Number of Tests and Retests9.1 Sufficient test coupons shall be produced to provide theneeded number of test specimens.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.1
15、8 on Castings.Current edition approved May 1, 2010. Published June 2010.1*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.10. Certification10.1 Certification of the test
16、 coupon is not applicable,except when specified by the casting purchaser.11. Product Marking11.1 Marking of test coupons other than as necessary toprovide the identification and traceability described in 6.1 isnot needed, except where specified by the casting purchaserand agreed by the producer.12.
17、Keywords12.1 Castings; steel; stainless steel; test coupon; test bar;heat; master heat; sub-heatFeature 4leg design 2leg designin. mm in. mmA214 60 214 60B114 35 114 35C250250D114 35 114 35E Optional Optional Optional OptionalW838 215 378 100T* * * *L 5 min. 125 min. 5 min. 125 min.R112 12.512 12.5R
18、x 0 116 02 0116 02*Use of and size of taper is at the discretion of the foundry.FIG. 1 Test Coupons for CastingsA1067102Feature in. mmA1116 30B 5 to 11 125 to 280C 4 100D12 to 312 13 to 90E 5 125F4116 105G3 75H112 40I18 3FIG. 2 Test Coupon for Tension TestFeature in. mmA114 35B 3 min.* 80 min.*C 1.0
19、0 25d14 * 5*R14 * 5*E12 * 13*Suggested Dimension *Plus finishing stockFIG. 3 Design and Dimensions of the ICI Test CouponA1067103Feature in. mmA12 * 13*B2 50C214 60E 8* 200*F 3* 75*G212 * 65*H12 * 13*I58 * 17*J158 * 40 min.*K14 min.* 7 min.*L12 * 13*M112 * 40*N 12* 300*R38 10* Suggested dimension. *
20、 Plus finishing stock.FIG. 4 Cast-to-Shape Test Coupon for Tension Test SpecimenA1067104FIG. 5 Specimen from CastingA1067105NOTE 1Longitudinal axis and gage length of test specimen must be within cross-hatched zone.FIG. 6 Separately Cast BlockFeature in. mmA112 min. 40 min.B112 min. 40 min.C112 min.
21、 40 min.D34 min. 20 min.FIG. 7 Prolongation Test CouponA1067106SUPPLEMENTARY REQUIREMENTSThere are currently no supplementary requirements for this standard.APPENDIX(Nonmandatory Information)X1. MOLD MATERIALX1.1 A test coupon is used to demonstrate that the metalcan obtain the specified minimum pro
22、perties, not that thecasting has certain properties. Thus it serves as a check of thecomposition and heat treatment. It is not (and cannot be) acheck of the gating and feeding system used for the casting or of any of the other processing variables.X1.2 Since the coupons are used to demonstrate theca
23、pability of the metal, any design that produces compliantproperties should be acceptable. There are a few exceptions:X1.2.1 The mold material used for the test coupons must notbe a more powerful chill than the material used for the casting.(Chilling may provide improved properties in some instances.
24、)Conversely, test coupons may be produced using a moldmaterial that is a less powerful chill (more insulating) than thatused for the casting.X1.2.2 In the case of a heavy section casting, a heavysection coupon may be appropriate for thickness-sensitivealloys. (This is related to the chilling issue;
25、a thin section testcoupon cools more quickly than a thick section casting.)X1.3 Pursuant to the above, a test specimen taken from asacrificial casting and which produces test results that complywith the requirements of the applicable product standardshould be considered as acceptable.NOTE 1Longitudi
26、nal axis and gage length of test specimen must be within cross-hatched zone.FIG. 8 Thermal Buffer PadsA1067107SUMMARY OF CHANGESThese test coupons were previously defined in multiple other standards. Committee A01 has identified thelocations of selected changes to these test coupon definitions that
27、may impact the use of this standard.(1) Fig. 1, (Keel block re-drawn; previously defined inA703,Fig. 2; A781, Fig. 1; A957, Fig. 2; and A985, Fig. 2.): Keyletters replaced numeric dimensions in the sketch; SI valuesrevised to be more rational, to reflect more realistic precisionlevels, and to be com
28、patible with A1058; and explanatory tabledeleted.(2) Fig. 2, (Round bar previously defined in A447, Fig. 1;A703, Fig. 3; A781, Fig. 2; A957, Fig. 3; and A985, Fig 3.):Key letters replaced numeric dimensions in the sketch and SIvalues revised to be more rational, to reflect more realisticprecision le
29、vels, and to be compatible with A1058.(3) Fig. 3, (ICI bar re-drawn; previously defined in A703,Fig. 1; A957, Fig. 1; and A985, Fig. 1.): Key letters replacednumeric dimensions in the sketch and SI values revised to bemore rational, to reflect more realistic precision levels, and tobe more compatibl
30、e with A1058. Certain dimensions desig-nated as “suggested.”(4) Fig. 4, (Investment cast bar previously defined in A703,Fig. 4; A781, Fig. 3; A957, Fig. 4; and A985, Fig. 4.): Keyletters replaced numeric dimensions in the sketch and SI valuesrevised to be more rational, to reflect more realistic pre
31、cisionlevels, and to be more compatible with A1058. Certaindimensions designated as “suggested.”(5) Fig. 5, (Attached test coupon previously defined inA703,Fig. S26.1; A781, Fig. S15.1; and A985, Fig. S26.1.)(6) Fig. 6, (Separately cast block previously defined inA703,Fig. S26.2; A757, Fig. 4, A781,
32、 Fig. 4; and A985, Fig. S26.2.)(7) Fig. 7, (Prolongation previously defined in A703, Fig.S26.3; A757, Fig. 6; A781; Fig. S15.3; and A985, Fig. S26.3.):Key letters replaced numeric dimensions in the sketch and SIvalues revised to reflect more realistic precision levels.(8) Fig. 8, (Thermal buffer pad
33、 previously defined in A703,Fig. 26.4; A757, Fig. 5; A781, Fig. S15.4, and A985, Fig.S26.4.)ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determinatio
34、n of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdra
35、wn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your c
36、omments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single
37、or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).A1067108
