ASTM B339 - 12

    Standard Specification for Pig Tin

    Active Standard ASTM B339 | Developed by Subcommittee: B02.02

    Book of Standards Volume: 02.04


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    Abstract

    This specification covers refined tin in pig form recovered and cast from primary and secondary tin bearing materials. One grade of tin metal is specified and is designated as Grade A. The refined tin shall be produced from primary, secondary, or a combination of tin-bearing materials to obtain the requirements of this specification, and may be manufactured by fire refining, vacuum refining, electrolytic or electrowinning refining methods, or a combination of these methods. The metal shall conform to the chemical composition requirements prescribed for tin, antimony, arsenic, bismuth, cadmium, copper, iron, lead, nickel, sulfur, zinc, silver, and other impurities. All tin of Grade A produced and cast at one time shall constitute a lot for chemical analysis. Sampling for chemical analysis shall be one of the following methods: (1) sampling from the lot during casting, and (2) sampling from the solidified cast pig product by sawing, drilling, or melting. The methods of sampling cast pig product are illustrated. If product analysis is desired, it may be made by methods including, but not limited to, wet chemical or spectrographic techniques.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    Significance and Use

    For the purpose of determining compliance with the specified limits for requirements of the properties listed in Table 1, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.

    1. Scope

    1.1 This specification covers refined tin in pig form recovered and cast from primary and secondary tin-bearing materials. One grade of tin metal is specified and is designated by the grade letter shown in Table 1.

    1.2 The percent values of tin contained are to be regarded as the standard.

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.4 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.

    TABLE 1 Chemical Composition and Impurity Contents

    ElementComposition, - wt%
    Grade AGrade BGrade A for the Manufacture of Tinplate Ultra Pure
    Grade
    Tin, min99.8599.8599.8599.95
    Antimony, max0.040.015 0.04 0.005
    Arsenic, max0.050.05 0.05 0.005
    Bismuth, max 0.0300.030 0.030 0.015
    Cadmium, max 0.0010.001 0.001 0.001
    Copper, max0.040.04 0.04 0.005
    Iron, max 0.0100.010 0.010 0.010
    Lead, max0.050.5 0.010 0.001
    Ni + Co, max0.010.01 0.01 0.010
    Sulfur, max0.010.01 0.01 0.010
    Zinc, max 0.0050.005 0.005 0.005
    Silver, max0.010.01 0.01 0.010
    Other impuritiesA 0.010 0.010

    A Maximum per impurity not listed above.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E46 Test Methods for Chemical Analysis of Lead- and Tin-Base Solder

    E51 Method for Spectrographic Analysis of Tin Alloys by the Powder Technique

    E57 Methods for Chemical Analysis of White Metal Bearing Alloys

    E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition


    ICS Code

    ICS Number Code 77.120.60 (Lead, zinc, tin and their alloys)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/B0339-12

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