1、 FSC 9525 Beneficial comments, recommendations, additions, deletions, clarifications, etc., and any data that may improve this document should be sent to: Commander, Naval Sea Systems Command, Department of the Navy, SEA 05Q, - 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160. QQ-N-286G 07 Decembe
2、r 2000 SUPERSEDING QQ-N-00286F(SH) 29 November 1990 QQ-N-286E 02 August 1985 FEDERAL SPECIFICATION NICKEL-COPPER-ALUMINUM ALLOY, WROUGHT (UNS N05500) The General Services Administration has authorized the use of this federal specification by all federal agencies. 1. SCOPE AND CLASSIFICATION 1.1 Scop
3、e. This specification covers all nickel-copper-aluminum alloy wrought forms formerly classified as class A. This alloy is designated under the Unified Numbering System for Metals and Alloys as UNS N05500. Except for cases where nonmagnetic properties are paramount, this alloy is intended to be age h
4、ardened prior to placing the material in service. 1.2 Classification. 1.2.1 Forms and conditions. The material should be furnished in the following forms and conditions, as specified (see 6.2). Form 1 - Bar, rod, unaged. Condition: Hot finished, unaged Cold drawn, unaged. Annealed (hot finished or c
5、old drawn), unaged. Form 2 - Bar, rod, age hardened. Condition: Hot finished and age hardened Cold drawn and age hardened Annealed (hot finished or cold drawn), and age hardened. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 2
6、Form 3 - Sheet. Condition: Cold rolled and annealed. Cold rolled, annealed, and age hardened. Form 4 - Strip. Condition: Cold rolled and annealed. Cold rolled, annealed, and age hardened. Cold rolled, half or full hard, as rolled. Cold rolled, half or full hard, and age hardened. Form 5 - Wire. Cond
7、ition: Cold, as drawn. Cold drawn and annealed. Cold drawn, spring temper, as drawn. Cold drawn, annealed, and age hardened. Cold drawn (as drawn) and age hardened. Cold drawn, spring temper, and age hardened. Form 6 - Plate. Condition: Hot rolled and annealed. Hot rolled, annealed, and age hardened
8、. Form 7 - Forgings (Including bar and rod formed by forging). Condition:Hot finished, unaged. Annealed, unaged. Hot finished and age hardened. Annealed and age hardened. (Note: Constant cross-section bars and rods formed by forging are considered to be “forgings“ only for purposes of: A) Sample fre
9、quency for mechanical properties (see 4.2.2.4 and 4.2.2.5). B) Visual and dimensional inspections (see 4.2.2.6). C) Ultrasonic testing requirements (see 4.3.3.2). Constant cross-section bars and rods are not otherwise considered to be “part forgings“ or “intricate or complex shape forgings.“ 1.2.2 F
10、inishes. The material shall be furnished in the following finishes, as specified (see 6.2). Age hardened condition of finishes (a)-(d) and (g) below shall be furnished with the age hardening oxide intact: A) Hot finished. B) As drawn. C) Rough turned or rough ground (rounds only). D) Semismooth mach
11、ined (rounds only). E) Smooth finished machined (rounds only). F) Bright finish (shafting only). G) Pickled. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 3 2. APPLICABLE DOCUMENTS 2.1 Government publications. The following documents, of
12、the issues in effect on the date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein: 2.1.1 Specifications and standards. FEDERAL STANDARD FED-STD-182 Continuous Identification Marking of Nickel and Nickel Base Alloys. (Activities outside
13、the Federal Government may obtain copies of Federal specifications, standards, and commercial item descriptions as outlined under General Information in the Index of Federal Specifications, Standards and Commercial Item Descriptions. The index, which includes cumulative bimonthly supplements as issu
14、ed, is for sale on a subscription basis by the Superintendent of Documents, U.S. Government Printing Office, Washington DC 20402.) (Copies of listed Federal and Military standards and specifications, Commercial Item Descriptions (CIDS), Handbooks and associated documents listed in the Department of
15、Defense Index of Specifications and Standards (dodiss) should be obtained from the DOD Single Stocking Standardization Documents Ordering Desk, 700 Robbins Avenue, Building 4D, Philadelphia PA 19111-5094. Copies of industry association documents should be obtained from the sponsor. Copies of all oth
16、er listed documents should be obtained from the contracting activity or as directed by the contracting officer.) (Federal Government activities may obtain copies of Federal Standardization documents and the Index of Federal Specifications, Standards and Commercial Item Descriptions from established
17、points in these agencies.) MILITARY STANDARD MIL-STD-1684 - Control of Heat Treatment. MIL-STD-2132 - Nondestructive Examination Requirements for Special Applications. (Unless otherwise indicated, copies of Federal and Military specifications and standards are available from the Standardization Docu
18、ments Order Desk, 700 Robbins Avenue, Building 4D,Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawings and publications. The following other Government documents, drawings and publications form a part of this document to the extent specified herein. Unless otherwise specified, th
19、e issues are those cited in the solicitation (see 6.2) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 4 PUBLICATIONS NAVAL SEA SYSTEMS COMMAND T9074-AS-GIB-010/271 - Requirements for Nondestructive Testing Methods. (Copies of this publicat
20、ion are available from the Naval Inventory Control Point, 700 Robins Avenue, Philadelphia, PA 19111-5094) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless a specific issue is identified, the issue in effect on date of invitation
21、 for bids or request for proposal shall apply. AMERICAN PETROLIUM INSTITUTE (API) 6A, Appendix H Recommended Practice for Heat Treating Equipment Qualification, Specification for Wellhead and Christmas Tree Equipment. (Application for copies should be addressed to API, 1220 L Street, Northwest, Wash
22、ington, DC 20005.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) E 8 Tension Testing of Metallic Materials. E 10 Standard Test Method For Brinell Hardness of Metallic Materials. E 18 Standard Test Method For Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials. E 76 Methods
23、for Chemical Analysis of Nickel-Copper Alloys. E 112 Methods for Determining Average Grain Size E 290 Standard Test Method for Semi-Guided Bend Test for Ductility of Metallic Materials E 340 Method for Macroetching Metals and Alloys E 602 Method for Sharp Notch Tensile Testing with Cylindrical Speci
24、mens (Application for copies should be addressed to ASTM, 100 Bar Harbor Drive, W. Conshohocken, PA 19428-2959.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) AMS 2750 - Pyrometry (Application for copies should be addressed to Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.) P
25、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 5 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document shall take precedence. Nothing in this documen
26、t, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Processing. Nickel-copper-aluminum alloy shall be produced by the electric furnace (EAF) or vacuum induction furnace (VIM) process and further refined by any process proved adequ
27、ate to pass the slow strain rate tensile test (see 3.4 and 4.3.6). Casting may be by ingot or continuous cast methods. Cast ingots or billets shall be hot worked to a fine uniform grain structure. Final processing shall be by hot working or cold working, and heat treating. 3.1.1 Forgings as final pr
28、oduct. For all forgings other than bar or rod, a forging sketch shall be prepared when specified (see 6.2). Forgings with final forged diameter or distance across parallel surfaces of 4 inches or greater shall be to such a configuration that they can be ultrasonically inspected 100 percent by volume
29、 with three directional coverage. 3.1.2 Heat treatment. Heat treatments shall be controlled in accordance with one of the following specifications: A) AMS 2750 and meet the minimum requirements for a class 2, type RM furnace with a uniformity requirement of 25F. B) Appendix H of API Specification 6A
30、. Furnaces with one working sensor in each control zone have been surveyed within the last three months and furnaces with more than one working sensor in each control zone have been surveyed within the last six months. c) MIL-STD-1684. 3.1.2.1 Solution treatment. Solution treating shall be accomplis
31、hed by holding at a minimum temperature of 1600F, followed by water quenching. The time at temperature must be such that the entire volume of material is heated to the solution treating temperature. 3.1.2.2 Age hardening. Age hardening shall be accomplished by any process proved adequate to meet the
32、 mechanical property requirements. 3.2 Chemical requirements. Chemical composition of the material shall conform to table I. When a product (check) analysis is specified (see 6.2), the material shall conform to the requirements of table I, subject to the permissible tolerances for check analysis. 3.
33、3 Mechanical properties. Mechanical properties shall be as specified in tables II through VI, as applicable. Unaged material shall meet the mechanical properties specified after heat treatment. 3.3.1 Unaged material. Material ordered in the unaged condition shall, after proper heat treatment, be cap
34、able of meeting the mechanical properties of the corresponding heat treated condition of the forms specified in tables II through VI, as applicable. 3.3.2 Bending properties (sheet and strip). Sheet and strip, except half hard and age hardened or full hard and age hardened strip, shall not crack whe
35、n subjected to cold bending (See 4.3.2.5). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 6 3.4 Susceptibility to intergranular cracking. The material shall not be susceptible to intergranular cracking (see 4.3.6). 3.5 Duplex grain structu
36、re. Duplex grain structure is not permitted in barstock with a diameter of 3 inches or less. Duplex grain structure is defined as any structure in which the average grain sizes for the two grain size specimens, prepared in accordance with 4.3.5, differ by more than 5 ASTM grain size numbers. The uni
37、formity of grain size shall be determined for bar and rod as specified in 4.3.5. Plate, sheet, strip, and wire shall be excluded from this requirement. 3.6 Recovered materials. The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with parag
38、raph 23.403 of the Federal Acquisition Regulation (FAR). TABLE I. Chemical composition. Elements Requirements, percent (Maximum unless a range or a minimum is indicated.) Product (check) analysis variations, under minimum or over maximum, of the specified limit of the element, percent Nickel 1/ 63.0
39、 minimum 0.45 Aluminum 2.30 - 3.15 0.20 Carbon(total) 0.18 0.02 Iron 2.0 0.05 Manganese 1.5 0.04 Silicon 0.50 0.03 Titanium 0.35 - 0.85 0.03 (minimum) 0.04 (maximum) Cobalt 0.25 0.03 Sulfur 0.006 0.002 Copper 2/ 27.0 - 33.0 0.15 (minimum) 0.20 (maximum) Tin 0.006 0.002 Phosphorous 0.02 0.005 Zinc 0.
40、02 0.005 Lead 0.006 0.002 1/ Element may be determined arithmetically by difference. 2/ Silver counting as copper. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 7 TABLE II. Mechanical properties (bar, rod, forged parts and plate unaged 1/
41、). Hardness(maximum) Form Condition Size, inches Brinell (3000 kg) Rockwell Up to 4, incl. 245 C23 Hot finished Over 4 260 C26 Hot finished and annealed All 185 B90 Rounds Cold drawn and annealed All 185 B90 Hot finished All 245 C23 Hot finished and annealed All 185 B90 Hexagons, squares, rectangles
42、 and forged parts Cold drawn and annealed All 185 B90 Hexagons Cold drawn All 260 C26 to 1, incl. 280 C29 Over 1 to 3, incl. 260 C26 Rounds Cold drawn Over 3 to 4, incl. 240 C22 Plate: Hot rolled and annealed Up to 4, incl 185 B90 1/ No tensile tests are required except as provided for in 4.3.2.2 TA
43、BLE III. Mechanical properties (age hardened bar; rod, forged parts and plate). Form Condition Diameter or maximum distance between parallel surfaces (inches) Tensile strength lb/in (minimum) Yield strength 0.2% offset lb/in (minimum) Elongation in 2 inches or 4D, percent (minimum) 1/Up to 4, inc. 1
44、40,000 100,000 20.0 Hot finished and age hardened Over 4 140,000 100,000 17.0 Up to 1 130,000 90,000 20.0 Rounds Annealed and age hardened 3/ 1 and over 130,000 85,000 20.0 Hot finished and age hardened All sizes 140,000 100,000 20.0 Up to 1 130,000 90,000 20.0 Hexagons, squares, rectangles and forg
45、ed parts 2/ Annealed and age hardened 3/ 1 and over 130,000 85,000 20.0 to 1, incl 145,000 110,000 15.0 Over 1 to 3, incl 140,000 100,000 17.0 Rounds Cold drawn and age hardened Over 3 to 4, incl 135,000 95,000 20.0 Hexagons Cold drawn and age hardened to 2, incl. 140,000 100,000 15.0 Plate Hot roll
46、ed, annealed and age hardened Up to 4, incl. 130,000 80,000 20.0 1/ Not applicable to subsize tensile specimens less than 0.250 inch diameter (see 4.3.2.3). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 8 2/ When specified (see 6.2), for
47、forged rings and discs, hardness measurements may be utilized in lieu of tensile tests. 3/ Applicable to both hot finished and cold drawn material. TABLE IV. Mechanical properties of sheet and strip. Form and condition Tensile strength lb/in (minimum) Yield strength at 0.2% offset (minimum) 1/ Elong
48、ation in 2 inches, percent (minimum) 1/ Rockwell hardness Cold rolled and annealed B85 Max Sheet Cold rolled, annealed, and age hardened 130,000 90,000 15 Cold rolled and annealed B85 Max Cold rolled, annealed, and age hardened 130,000 90,000 15 Cold rolled, half hard, as rolled C20 Min Cold rolled,
49、 half hard, and age hardened 145,000 110,000 8 Cold rolled, full hard, as rolled C25 Min Strip Cold rolled full hard and age hardened 170,000 130,000 5 1/ No yield strength or elongation requirements for sheet and strip under 0.020 inch thick. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-N-286G 9 TABLE V. Tensile strength of cold drawn wire in coils. Cond
