ASTM-B61:15(R2021) pdf free download – Standard Specification for Steam or Valve Bronze Castings.
3. General Requirements
3.1 The following sections of Specification B824 form a part of this specification. In the event of a conflict between this specification and Specification B824, the requirements of this specification shall take precedence.
3.1.1 Terminology (Section 3).
3.1.2 Other Requirements (Section 7),
3. 1 .3 Dimensions, Mass, and Permissible Variations (Section 8),
3.1.4 Workmanship, Finish, and Appearance (Section 9),
3.1.5 Sampling (Section 10),
3.1.6 Number of Tests and Retests (Section 11),
3. 1 .7 Specimen Preparation (Section 1 2),
3.1.8 Test Methods (Section 13),
3.1.9 Significance of Numerical Limits (Section 14),
3.1.10 Inspection (Section 15),
3.1.11 Rejection and Rehearing (Section 16),
3.1.12 Certification (Section 17),
3.1.13 Test Report (Section 18),
3.1.14 Product Marking (Section 19), and
3.1.15 Packaging and Package Marking (Section 20).
4. Terminology
4.1 For definitions of terms relating to copper and copper alloys, refer to Terminology B846.
5. Ordering Information
5.1 Include the following information when placing orders for castings under this specification:
5.1.1 Quantity of castings required,
5.1.2 Copper Alloy UNS No. (Table 1),
5.1.3 Specification title, number, and year of issue,
5.1.4 Pattern or drawing number and condition (as-cast, machined).
5.1.5 Pressure test requirements. if specified in the purchase order (Specification B824),
5.1.6 Soundness requirements. if specified in the purchase order (Specification B824),
5.1.7 Certification, if specified in the purchase order (Specification B824),
5.1.8 Foundry test report, if specified in the purchase order (Specification B824),
5.1.9 Witness inspection, if specified in the purchase order (Specification B824),
5. 1 . 1 0 ASME Boiler and Pressure Vessel Code application (Section 10), and
5.1 .11 Product marking, if specified in the purchase order (Specification B824 and Section II).
5.2 When material is purchased for agencies of the U.S. government, specify the Supplementary Requirements in Specification B 24.
6. Chemical Composition
6.1 The alloy shall conform to the chemical requirements specified in Table I.
6.2 These specification limits do not preclude the presence of other elements. Limits may be established for unnamed elements by agreement between manufacturer or supplier and purchaser. Copper or zinc may be given as remainder and may be taken as the difference between the sum of all elements analyzed and 100 %. When all named elements in Table 1 are
analyzed, their sum shall be as follows:
Copper plus named elements, 99.3% minimum. (I)
7. Mechanical Property Requirements
7.1 Mechanical properties shall be determined from separately cast test bars and shall meet the requirements shown in Table 2.
8. Casting Repair
8.1 Castings shall not be plugged, welded, burned-in, or impregnated.
9. Sampling
9.1 Copper Alloy UNS No. C92200 test bar castings shall he cast to the form and dimensions shown in Figs. 2, 3, or 4 of Practice B 208.
10. Certification
10.1 When material is specified to meet the requirements of ASME Boiler and Pressure Vessel Code, the certification requirements of Specification B824 are mandatory.
11. Product Marking
11.1 Valves, flanges, and fittings shall he marked in accordance with the latest revision of the Standard Marking System for Valves, Fittings, Flanges, and Unions (No. SP-25) of the Manufacturers Standardization Society of the Valve and Fittings Industry, and in such position as not to injure the usefulness of the casting.
12. Keywords
12.1 Copper Alloy UNS No. C92200 valves; fittings; flanges: Navy M castings; steam bronze castings: valve castings; valve bronze.