ASTM B981-19 pdf download.Standard Specification for Low Leaded Brass Rod, Bar and Shapes.
3. General Requirements
3.1 The following sections of Specifications B249/B249M (rod, bar, and shapes) and B250/B250M (wrought copper alloy wire) constitute a part of this specification.
3.1.1 Terminology,
3.1.2 Materials and Manufacture,
3.1.3 Workmanship, Finish, and Appearance,
3.1.4 Sampling,
3.1.5 Number of Tests and Retest,
3.1.6 Specimen Preparation,
3.1.7 Test Methods,
3.1.8 Significance of Numerical Limits,
3.1.9 Inspection,
3.1.10 Rejection and Rehearing,
3.1.11 Certification,
3.1.12 Mill Test Report,
3.1.13 Packaging and Package Marking, and
3.1.14 Supplementary Requirements.
3.2 In addition, when a section with a title identical to those referenced in 3.1 appears in this specification, it contains additional requirements that supplement those appearing in Specifications B249/B249M and B250/B250M.
4. Ordering Information
4.1 Include the following information when placing orders for product under this specification, as applicable:
4.1.1 ASTM specification designation and year of issue (Bxxx/BxxxM – XX).
4.1.2 Copper Alloy UNS No. designations (C36300, C36500, C37000, C37100 and C37700, see Section 6 and Table 1.
4.1.3 Temper (see Section 7 and Table 2 and Table 3).
4.1.4 Product cross section form (for example, round, hexagonal, square, etc.).
4.1.5 Dimensions (see Section 9).
4.1.6 How furnished: straight lengths or coils (see 5.2).
4.1.7 Edge contours (see Section 9).
4.1.8 Quantity; total weight, footage, or number of pieces for each size.
4.2 The following options are available and shall be speci- fied at the time of placing the order when required:
4.2.1 Tensile test requirement for product 1 ⁄ 2 in. [12 mm] and over (see 8.2).
4.2.2 Certification (refer to Specifications B249/B249M or B250/B250M).
4.2.3 Mill Test Report (refer to Specifications B249/B249M or B250/B250M).
4.2.4 When product is purchased for agencies of the U.S. Government see Section 11.
5. Materials and Manufacture
5.1 Material—The material of manufacture shall be a cast billet of Copper Alloys UNS No. C36300, C36500, C37000, C37100 and C37700 and of such purity and soundness as to be suitable for hot extrusion into rod, bar, wire, and shaped products.
5.1.1 In the event that heat identification or traceability is
required, the purchaser shall specify the details desired.
N OTE 2—Due to the discontinuous nature of the processing of castings into wrought products, it is not always practical to identify a specific casting analysis with a specific quantity of finished material.
5.2 Manufacture—Product produced under this specification shall be in straight lengths; however, it shall be furnished in coils when so specified in the contract or purchase order (see
4.1.6).ASTM B981 pdf download.