SPECIFICATION FOR COPPER-NICKEL-ZINC ALLOY (NICKEL SILVER) AND COPPER-NICKEL ROD AND BAR

Transcription

1 SPECIFICATION FOR COPPER-NICKEL-ZINC ALLOY (NICKEL SILVER) AND COPPER-NICKEL ROD AND BAR 98 SB-151 (Identical with ASTM Specification B ) 1. Scope 1.1 This specification establishes the requirements for copper-nickel-zinc and copper-nickel rod and bar for general application produced from Copper Alloy UNS Nos. C70600, C71500, C74500, C75200, C75700, C76400, C77000, and C This specification is the companion to SI Specification B 151M; therefore, no SI equivalents are presented in this specification. NOTE 1 Requirements for copper-nickel-zinc alloy wire appear in Specification B Referenced Documents 2.1 ASTM Standards: B 151M Specification for Copper-Nickel-Zinc (Nickel Silver) and Copper-Nickel Rod and Bar (SI) B 206 Specification for Copper-Nickel-Zinc (Nickel Silver) and Copper-Nickel Alloy Wire B 249 Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar and Shapes B 601 Practice for Temper Designations for Copper and Copper Alloys Wrought and Cast E 3 Methods of Preparation of Metallographic Specimens E 8 Test Methods for Tension Testing of Metallic Materials E 75 Test Methods for Chemical Analysis of Copper- Nickel and Copper-Nickel-Zinc Alloys E 76 Test Methods for Chemical Analysis of Nickel- Copper Alloys E 112 Test Methods for Determining Average Grain Size E 255 Practice for Sampling Copper and Copper Alloys for Determination of Chemical Composition E 478 Test Methods for Chemical Analysis of Copper Alloys 3. Ordering Information 3.1 The contract or purchase order for product under this specification shall include the following information: ASTM designation and year of issue (for example, B 151-XX), Copper Alloy UNS No. designation (Section 4 and Table 1), Temper (Section 7 and Tables 2, 3, and 4), Form: cross section, such as round, hexagonal, square, etc. (Section 11), Diameter or distance between parallel surfaces (Section 11), Weight: total for each form, size, and temper, When product is purchased for subsequent welding application (Table 1, Footnote C), When material is purchased for agencies of the U.S. Government (Section 10). 103

2 SB SECTION II TABLE 1 CHEMICAL REQUIREMENTS Composition % max (unless shown as range or min) Other Copper Alloy Copper, Nickel, Manganese, Named UNS No. incl. Silver incl. Cobalt Lead Iron Max. Zinc Elements C70600 A 86.5 min B C C max C C min B C C max C C remainder... C remainder... C remainder... C remainder... C remainder... C remainder... A Phosphorus and sulfur content shall each be 0.02% max. B Copper plus elements with specific limits, 99.5% min. C When the product is for subsequent welding applications and so specified by the purchaser, zinc shall be 0.50% max, lead 0.02% max, phosphorus 0.02% max, sulfur 0.02% max, and carbon 0.05% max. TABLE 2 GRAIN SIZE REQUIREMENTS FOR OS (ANNEALED) TEMPER ROD AND BAR Copper Alloy Temper Grain Size, mm UNS No. Designation Nominal Minimum Maximum All alloys OS All alloys OS C74500, C75200, OS C75700, C76400, and C The following options are available and should be specified in the contract or purchase order when required: Heat identification or traceability detail, Certification, and Test report. 4. General Requirements 4.1 The following sections of Specification B 249 are part of this specification: Terminology, Material and Manufacture, Workmanship, Finish and Appearance, Sampling, Specimen Preparation Test Methods, Inspection, Certification, Test Report, Packaging and Package Marking. 4.2 An identical section in this specification supplements the referenced section. 5. Material and Manufacture 5.1 Material: As specified in the contract or purchase order, the product furnished shall be produced from Copper Alloy UNS No. C70600, C71500, C74500, C75200, C75700, C76400, C77000, or C Chemical Composition 6.1 The product material composition shall conform to the requirements prescribed in Table 1 for the Copper Alloy UNS No. designation specified in the contract or purchase order. 104

3 PART B NONFERROUS MATERIAL SPECIFICATIONS SB-151 TABLE 3 TENSILE REQUIREMENTS FOR COPPER-NICKEL-ZINC ALLOY ROD AND BAR Tensile Strength, ksi A Copper Alloy UNS Copper Alloy UNS Nos. C74500, Nos. C75200 and C75700, C76400, Diameter or Distance C79200 and C77000 Temper Between Parallel Designation Surfaces, in. Min Max Min Max Rod: round H to 0.50, incl Rod: round, hexagonal, octagonal H to 025, incl Over 0.25 to 0.50, incl Over 0.50 to 1.0, incl Over A 1 ksi p 1000 psi. Bar: square, rectangular all sizes These specification limits do not preclude the presence of other elements. Limits may be established and analysis required for unnamed elements by agreement between the manufacturer and the purchaser. 6.2 For copper alloys in which zinc is specified as the remainder, zinc may be taken as the difference between the sum of results for all elements determined and 100%. 6.3 When all elements listed in Table 1 for a specified alloy are determined, the sum of results shall be 99.5% minimum. 7. Temper 7.1 Tempers available under this specification and as defined in Practice B 601 are: O60, OS035, OS070, H01, and H04. NOTE 3 The purchaser should confer with the manufacturer or supplier concerning the availability of a specific form and temper. 8. Grain Size Requirements 8.1 Grain Size: Product in the OS temper shall conform to the requirement prescribed in Table 2 for the specified copper alloy and temper Grain size shall be the basis for acceptance or rejection for OS temper product produced from Copper Alloy UNS Nos. C74500, C75200, C75700, C76400, C77000, and C Mechanical Properties Requirements 9.1 Tensile Requirement: Copper-Nickel-Zinc Alloys UNS Nos. C74500, C75200, C75700, C76400, C77000, and C79200, in tempers H01 and H04 shall conform to the requirement prescribed in Table 3 for the specified shape and size and the tensile strength shall be the basis of acceptance or rejection for product in these tempers Copper-Nickel Alloys UNS Nos. C70600 and C71500 in tempers H01, H04, and O60 shall 105

4 SB SECTION II TABLE 4 TENSILE REQUIREMENTS FOR COPPER-NICKEL ALLOY ROD AND BAR Tensile Strength Yield Strength at 0.5% Elongation in 4 Temper min, Extension Under Load, Diameter or Thickness Designation Diameter or Distance Between Parallel Surfaces, in. ksi A min, ksi A of Specimen, min, % A Copper Alloy UNS No. C70600 O60 round, hexagonal, and octagonal rods all sizes H04 round, hexagonal, and octagonal rods up to 3 8, incl over 3 8 to 1, incl over 1 to O60 rectangular bars and shapes all sizes For Thicknesses H04 rectangular bars up to 3 8, incl over 3 8 to 1 2, incl over 1 2 to H04 shapes all sizes (As agreed between manufacturer or supplier and puchaser) Copper Alloy UNS No. C71500 O60 round, hexagonal, and octagonal rods up to 1 2, incl over 1 2 to 1, incl over H01 round, hexagonal, and octagonal rods up to 1 2, incl over 1 2 to 1, incl over 1 to 3, incl H04 up to 1 2, incl over 1 2 to 1, incl over 1 to 2, incl O60 rectangular bars and shapes all sizes For Thicknesses H04 rectangular bars up to 1 2, incl over 1 2 to 1, incl H04 shapes all sizes (As agreed between manufacturer or supplier and puchaser) A ksi p 1000 psi. B In any case, a minimum gage length of 1 in. shall be used. conform to the requirement prescribed in Table 4 for the specified shape and size and tensile properties shall be the basis of acceptance or rejection for all tempers. 10. Purchases for U.S. Government 10.1 When specified in the contract or purchase order, product purchased for agencies of the U.S. Government shall conform to the special government regulations specified in the Supplemental Requirements section. 11. Dimensions, Mass, and Permissible Variations 11.1 The following titled sections and tables in Specification E 249 are a part of this specification Diameter or Distance Between Parallel Surfaces: Rod: Round, Hexagonal, Octagonal Table

5 PART B NONFERROUS MATERIAL SPECIFICATIONS SB Bar: Rectangular and Square Tables 9 and Length Tables 12 and Straightness Table Edge Contours. 12. Number of Tests and Retests 12.1 Tests: Chemical Analysis: Chemical composition shall be determined as the per element mean of results from at least two replicate determinations of the sample(s) and the results of each replication shall conform to compositional requirements Other Tests: Grain size and tensile properties shall be determined from specimens prepared from each of two sample pieces selected for tests and each specimen shall conform to test requirement(s) Retests: When requested by the manufacturer or supplier, a retest may be permitted when test results obtained by the purchaser fail to conform with the product specification requirements(s) Retesting shall be as directed in the product specification for the initial test except for the number of test specimens which shall be twice that normally required for the test. Test results for all specimens shall conform to the product specification requirement(s) in retest and failure to comply shall be cause for lot rejection. Element Range, % Method Copper E 478 Iron E 75 Lead E 478 (AA) Manganese E 75 Nickel 8 34 E 478 (Gravimetric) Zinc E 478 (AA) Zinc 2 40 E 478 (Titrimetric) 14. Rejection and Rehearing 14.1 Rejection: Product that fails to conform to the requirements of the product specification may be rejected Rejection shall be reported to the manufacturer or supplier, promptly and in writing In case of disagreement or dissatisfaction with the results of the test upon which rejection was based, the manufacturer or supplier may take claim for a rehearing Rehearing: As a result of product rejection, the manufacturer or supplier may make claim to the purchaser for retest to be conducted by the manufacturer or supplier and the purchaser. Samples of the rejected product shall be taken in accordance with the product specification and tested by both parties as directed in the product specification, or, alternatively, upon agreement by both parties, an independent laboratory may be selected for the tests using the test methods prescribed in the product specification. 13. Test Methods 13.1 The test method(s) used for quality control or production control, or both, for the determination of conformance with product property requirements are discretionary The test method(s) used to obtain data for the preparation of certification or test report, or both, shall be made available to the purchaser on request Chemical Analysis: Chemical composition shall be determined, in case of disagreement, as follows: 15. Keywords 15.1 copper alloy bar; copper alloy rod; coppernickel alloy bar; copper-nickel alloy rod; copper-nickelzinc alloy bar; copper-nickel-zinc alloy rod; cupronickel bar; cupronickel rod; nickel silver bar; nickel silver rod; UNS C70600 bar; UNS C71500 bar; UNS bar; UNS bar, UNS C75700 bar; UNS C76400 bar; UNS C77000 bar; UNS C79200 bar; UNS C70600 rod; UNS C71500 rod; UNS C74500 rod; UNS C75200 rod, UNS C75700 rod; UNS C76400 rod; UNS C77000 rod; UNS C79200 rod 107

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