1、m 9999974 OL7L.547 707 m . A-A-52610 .- . .V -mc1 . A-A-526 1 O June24.1996 SUPERSEDING 6 December 1992 MlL-N-62418(AT) Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any other data which may improve this document should be sent by letter to: U.S. Army Tank-auto
2、motive and Armaments Command, ATTN: AMSTA-TR-E/BLUE, Warren, MI 48397-5000. COMMERCIAL ITEM DESCRIPTION -. NICKEL BASE ALLOY, SHEET AND PLATE CORROSION AND HEAT RESISTANT, SOLUTION HEAT TREATED (“ES 230) (METRIC) The General Services Administration has authorized the use of this Commercial Item Desc
3、ription (CID) for all federal agencies. 1. SCOPE. This CID covers the chemical composition and mechanical properties of nickel base doy in form of sheet and plate. This material is used primarily for formed and drawn parts requiring high strength up to 980 degrees Celsius (OC) (1800 degrees Fahrenhe
4、it (OF), and oxidation resistance up to 1095OC (2000F). 2. CLASSIFICATION. The nickel base alloy covered in this specifcation shall be classified as follows (see 3.1 and 7.2): Type Ia - Hot rolled sheet Type Ib - Cold rolled sheet Type II - Hot rolled plate Provided by IHSNot for ResaleNo reproducti
5、on or networking permitted without license from IHS-,-,-A-A-52610 W 9999974 L7L548 643 . . A-A-526 I O 3. SALIENT CHARACTERISTICS - 3.1 Materials. The nickel base doy shall come in three types (see 2) and shd be solution heat treated (see 4.1). T 3.1.1 Finish. The surface of the sheet or plate shaii
6、 be delivered descaied unless solutionizing produces a bright finish of equal or better quality than the no. 1 finish for corrosion resistant sheet (see 7.2). 3.1.2 Chemical comriosition. The alloy sha be nickel base, unified numbering system (UNS) NO6230 in the forms of sheet and plate. The chemica
7、l composition of the alloy shd codom to the percentage by weight of each element as specified in ASTM B435 or equivalent (see 7.2). 3.1.2.1 Chemical composition variation. Mowable variation of the chemical composition shd be in accordance with the requirements of ASTM B435. 3.1.3 Recvcled. virgn and
8、 reclaimed materials. There are no requirements for the exclusive use of virgin materiais. The use of recycled or reclaimed (recovered) materials is acceptable provided that all other requirements of this specification are met (see 4.1). 3.2 Tolerances. Unless otherwise specied in the contract or pu
9、rchase order (see 7.2) tolerances shaii be in accordance with the requirements of AMs 2262. 3.3 Performance. The material shall conform to the following mechanical and physical properties after heat treatment. 3.3.1 Mechanical moperties. Mechanical properties of the heat treated material shaU be as
10、specified herein. 3 -3.1.1 Tensile. The room temperature tensile properties of the nickel base doy shall be as follows and in accordance with ASTM B435: Megapascals Ultimate strength, minimum: 758 110 O00 Yield strength at 0.2% offset, minimum: 3 10 45 O00 Elongation in 50.8 millimeter (mm) 2 inch (
11、in), minimum thickness 0.38 mm (.O15 in) and over Elongation - 40% 40% .- - I NOTE: For material thicknesses less than 0.38 mm (0.015 inch), elongation shd be as agreed upon by the procuring activity and the supplier. (I 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without
12、license from IHS-,-,- A-A-52610 = 9999974 0171549 5T A-A-526 1 O 3.3.1.2 Stress rupture. A test specimen maintained at a temperature of 1700 k 3F (927 ASTM E290, “Standard Test Methods for Semi-hided Bend Test for Ductility of Metallic Materials OD Adopted)”; and ASTM B435, “Standard Specification f
13、or UNS N06002, UNS N06230, UNS N12160, and UNS R30556 Plate, Sheet, and Strip are available from American Society For Testing and Materials, 100 Ban Harbor Drive, West Conshohocken, PA 19428-2959. 7.2 Orderino data. Acquisition documents must specify the following: - - -. a. Title, number, and date
14、of this CID. b. Issue of DODISS to be cited in the CID, and ifrequired, the specific issue of individual documents referenced. I 7 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-C. d. e. f g* h. 1. Ia - Hot rolled sheet Ib - Cold rolied sheet II -
15、 Hot roiled plate r IL“: CID number Designates a CID A-A-52b10 9999974 O373553 338 = . A-A-526 1 O . . Chemical composition, if applicable, for oversize. Type of nickel base alloy plate or sheet. Iffinish other than as specified. Iftolerances shall be other than as specified. Bend factor for materia
16、l greater than 4.75 mm. Identification and marking. Selection of applicable level and packaging requirements. 7.3 Cross-reference data. Alloy conforming to this CID is interchangeable/substitutable with alloy conforming to MIL,-N-62418(AT) and Textron Lycornhg internal specification M3633B, dated 13
17、 June 1991. 7.4 Part identification number TPDQ . The PINS to be used for nickel base alloy required to this CID are created as foliows: MILITARY INTERESTS: Custodian: Army - AT CNIL AGENCY COORDINATING ACTIVITY: GSA- FSS Preparing Activity: Army - AT (Project 9630-0039) 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
