ASTM B240-07 - 1.7.2007
 
1. Scope

1.1 This specification covers commercial zinc and zinc-aluminum (ZA) alloys in ingot form for remelting for the manufacture of pressure die castings, foundry castings and continuous cast bar stock as designated and specified in . Seven alloy compositions are specified, designated as follows:

1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are used primarily for remelting in the manufacture of pressure die castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840 are used for remelting in the manufacture of both foundry and pressure die castings. Castings made from these ingots are specified in Specification B 86, Standard Specification for Zinc and Zinc-Aluminum Alloys for Foundry and Die Castings.

1.3 The values stated in inch-pound units are to be regarded as standard.

1.4 Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described in Appendix X1.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

B86-23

Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings

B897-23

Standard Specification for Configuration of Zinc and Zinc Alloy Jumbo, Block, Half Block, and Slab Ingot

B949-23

Standard Specification for General Requirements for Zinc and Zinc Alloy Products

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

ISO 301

Zinc Alloy Ingots Intended for Casting

ISO 3815–1

Zinc and zinc alloys -- Part 1: Analysis of solid samples by optical emission spectrometry.

Methods for Emission Spectrochemical AnalysisMethods for Emission Spectrochemical Analysis: General Practices, Nomenclature, Standard Methods, Proposed Methods, Suggested Methods, ASTM International, 1982.

B899-25

Standard Terminology Relating to Non-ferrous Metals and Alloys

B908-22

Standard Practice for the Use of Color Codes for Zinc Casting Alloy Ingot

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

B275-14

Standard Practice for Codification of Certain Zinc, Tin and Lead Die Castings (Withdrawn 2020)

E536-23

Standard Test Methods for Chemical Analysis of Zinc and Zinc Alloys

ISO 3815–2

Zinc and zinc alloys -- Part 2: Analysis by inductively coupled plasma optical emission spectrometry.