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ASTM A1067 - A 1067M - 12a.pdf

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ASTM A1067 - A 1067M - 12a.pdf

Designation A1067/A1067M − 12aStandard Specification forTest Coupons for Steel Castings1This standard is issued under the fixed designation A1067/A1067M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification defines the geometries of severalseparately-cast and integrally-cast test coupons for use asspecified in the applicable casting product 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 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 standard. 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, 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 standard 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, 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 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. Performance 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 considered 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 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. 1-9. Other designs may besuitable when shown to produce acceptable properties or whereagreed.7. Workmanship, Finish, and Appearance7.1 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 it represents.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved Nov. 1, 2012. Published November 2012. Originallyapproved in 2010. Last previous edition approved in 2012 as A1067/A1067M–12.DOI 10.1520/A1067_A1067M-12A.*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 States19. Number of Tests and Retests9.1 Sufficient test coupons shall be produced to provide theneeded number of test specimens.10. Certification10.1 Certification of the test 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. Keywords12.1 Castings; steel; stainless steel; test coupon; test bar;heat; master heat; sub-heatFeature 4–leg design 2–leg designin. mm in. mmA21⁄4 60 21⁄4 60B11⁄4 35 11⁄4 35C250250D11⁄4 35 11⁄4 35E Optional Optional Optional OptionalW83⁄8 215 37⁄8 100T****L 5 min. 125 min. 5 min. 125 min.R11⁄2 12.51⁄2 12.5Rx 0 –1⁄16 0–2 0–1⁄16 0–2*Use of and size of taper is at the discretion of the foundryFIG. 1 Test Coupons for CastingsA1067/A1067M − 12a2Feature in. mmA11⁄16 30B 5 to 11 125 to 280C 4 100D1⁄2 to 31⁄2 13 to 90E 5 125F41⁄16 105G3 75H11⁄2 40I1⁄8 3FIG. 2 Test Coupon for Tension TestFeature in. mmA11⁄4 35B 3 min.* 80 min.*C 1.00 25d1⁄4 ** 5**R1⁄4 ** 5**E1⁄2 * 13**Suggested Dimension **Plus finishing stockFIG. 3 Design and Dimensions of the ICI Test CouponA1067/A1067M − 12a3Feature in. mmA1⁄2 ** 13**B250C21⁄4 60E 8* 200*F 3* 75*G21⁄2 * 65*H1⁄2 ** 13**I5⁄8 * 17*J15⁄8 * 40 min.*K1⁄4 min.* 7 min.*L1⁄2 * 13*M11⁄2 * 40*N 12* 300*R3⁄8 10* Suggested dimension. ** Plus finishing stock.FIG. 4 Cast-to-Shape Test Coupon for Tension Test SpecimenA1067/A1067M − 12a4FIG. 5 Specimen from CastingA1067/A1067M − 12a5NOTE 1Longitudinal axis and gage length of test specimen must be within cross-hatched zone.FIG. 6 Separately Cast BlockFeature in. mmA11⁄2 min. 40 min.B11⁄2 min. 40 min.C11⁄2 min. 40 min.D3⁄4 min. 20 min.FIG. 7 Prolongation Test CouponA1067/A1067M − 12a6NOTE 1Longitudinal axis and gage length of test specimen must be within cross-hatched zone.FIG. 8 Thermal Buffer PadsFeature in. mmL 5 125D 5 125FIG. 9 Cylindrical Coupon for Centrifugal CastingsA1067/A1067M − 12a7SUPPLEMENTARY REQUIREMENTSThere are currently no supplementary requirements for this standard.APPENDIXNonmandatory InformationX1. MOLD MATERIALX1.1 Atest coupon is used to demonstrate that the metal canobtain the specified minimum properties, not that the castinghas 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 the capa-bility of the metal, any design that produces compliant prop-erties should be acceptable. There are a few exceptionsX1.2.1 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.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; 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.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issueA1067/A1067M –12 that may impact the use of this standard. Approved Nov. 1, 2012.1 The minimum length of the coupon Fig. 9 was changedfrom 4 in. 100 mm to 5 in. 125 mm, and the SI equivalentfor the diameter from 130 to 125 mm.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 determination 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 withdrawn. 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 comments 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 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 websitewww.astm.org. Permission rights to photocopy the standard may also be secured from the ASTM website www.astm.org/COPYRIGHT/.A1067/A1067M − 12a8

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