ASTM B339-00(2005)
(Specification)Standard Specification for Pig Tin
Standard Specification for Pig Tin
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.
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 .
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 the standard. The values given in parentheses are for information only.
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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B339 – 00 (Reapproved 2005)
Standard Specification for
Pig Tin
This standard is issued under the fixed designation B339; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
TABLE 1 Chemical Composition and Impurity Contents
1. Scope
Composition, - wt%
1.1 This specification covers refined tin in pig form recov-
Grade “A” for
ered and cast from primary and secondary tin-bearing materi-
Element
Ultra Pure
Grade “A” the Manufacture
als. One grade of tin metal is specified and is designated by the Grade
of Tinplate
grade letter shown in Table 1.
Tin, min 99.85 99.85 99.95
1.2 The percent values of tin contained are to be regarded as
Antimony, max 0.04 0.04 0.005
the standard. Arsenic, max 0.05 0.05 0.005
Bismuth, max 0.030 0.030 0.015
1.3 The values stated in inch-pound units are to be regarded
Cadmium, max 0.001 0.001 0.001
as standard. The values given in parentheses are mathematical
Copper, max 0.04 0.04 0.005
conversions to SI units that are provided for information only Iron, max 0.010 0.010 0.010
Lead, max 0.05 0.010 0.001
and are not considered standard.
Ni+ Co, max 0.01 0.01 0.010
1.4 This standard does not purport to address all of the
Sulfur, max 0.01 0.01 0.010
Zinc, max 0.005 0.005 0.005
safety concerns, if any, associated with its use. It is the
Silver, max 0.01 0.01 0.010
responsibility of the user of this standard to become familiar
A
Other impurities 0.010 0.010
with all hazards including those identified in the appropriate
A
Maximum per impurity not listed above.
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
3. Terminology
regulatory limitations prior to use.
3.1 Definitions of Terms Specific to This Standard:
2. Referenced Documents
3.1.1 pig, n—an oblong or square mass of metal that has
2.1 ASTM Standards:
been cast while still molten into a mold that gives the metal its
E29 Practice for Using Significant Digits in Test Data to
particular shape.
Determine Conformance with Specifications
4. Ordering Information
E46 Test Methods for Chemical Analysis of Lead- and
Tin-Base Solder 4.1 Orders for material under this specification shall include
E51 Method for Spectrographic Analysis of Tin Alloys by the following information:
the Powder Technique 4.1.1 ASTM designation and year of issue,
E57 Method for Chemical Analysis of White Metal Bear- 4.1.2 Quantity in weight, metric tons or kilograms,
ings Alloy 4.1.3 Shape and size,
E88 Practice for Sampling Nonferrous Metals andAlloys in 4.1.4 Method of manufacturing (Section 5),
Cast Form for Determination of Chemical Composition 4.1.5 Chemistry (Section 6),
4.1.6 Product marking (Section 16), and
4.1.7 Packaging (Section 17).
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
5. Materials and Manufacture
B02.02 on Refined Lead, Tin, Antimony, and Their Alloys.
Current edition approved Nov. 1, 2005. Published February 2006. Originally
5.1 The refined tin shall be produced from primary, second-
approved in 1967. Last previous edition approved in 2000 as B339 - 00. DOI:
ary, or a combination of tin-bearing materials to obtain the
10.1520/B0339-00R05.
2 requirements of this specification.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 5.2 The refined metal for GradeAtin may be manufactured
Standards volume information, refer to the standard’s Document Summary page on
by fire refining, vacuum refining, electrolytic or electrowinning
the ASTM website.
refining methods, or a combination of these methods.
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
B339 – 00 (2005)
6. Chemical Composition
6.1 The tin shall conform to the requirements as to chemical
composition prescribed in Table 1.
7. Methods of Chemical Analysis
7.1 An analysis of each lot shall be made by the supplier.
The analysis shall be made from representative test samples
obtained from the lot during pouring or from the final pig
product. The chemical composition determined shall conform
to the requirements of Table 1.
7.2 If a product analysis is desired by the purchaser, it shall
be made in the purchaser’s laboratory or elsewhere. Such
analysis may be made by various methods including, but not
limited to, wet chemical or spectrographic techniques.
8. Lot
8.1 All tin of Grade A produced and cast at one time shall
constitute a lot for chemical analysis. Each pig of the lot shall
FIG. 1 Pig Tin Sampling Methods
bear a single identifying number that can be related to the
manufacturing lot. This lot number can be cast, metal die
10.3.2 Sampling—Aportion representative of the total ship-
stamped, or marked legibly upon each pig.
ment shall be selected at random for the final sample. For lots
containing at least 55 115 lb (25 000 kg) of pig tin, one pig
9. Workmanship, Finish and Appearance
shallbetakenforevery10 000lb(4530kg)orpartthereof.For
9.1 The manufacturer shall use care to have each lot of tin
smaller lots, five pigs shall be taken at random. In case of
material as uniform in quality as possible.
shipment lots less than five pigs, each pig shall be sampled at
9.2 The pigs shall be clean and reasonably free of adhering
least once or as many times as may be necessary to provide a
foreign material.
sufficient sample for analysis. A minimum of five pigs is
preferred for sampling. If a shipment is comprised of batches
10. Sampling for Chemical Analysis
identified by heat numbers, each heat should be sampled as a
10.1 Care must be taken to ensure that the sample selected
separate lot.
for testing is representative of the material. The method of
10.3.3 Sample Preparation—Each pig should be cleaned
sampling for chemical analysis shall be agreed upon mutually
thoroughly to rid the surface of dirt or adhering foreign
between the supplier and the purchaser and shall consist of one
material prior to sampling by one of the following methods:
of the following methods:
sawing, drilling, or melting.
10.1.1 Test samples taken from the lot during casting or
10.3.3.1 Sawing—The pigs selected shall be sawed com-
10.1.2 Test samples taken from the final solidified cast pig
pletely through as illustrated in Fig. 1 (one cut per pig) or shall
product.
be sawed half way across from both sides as illustrated in Fig.
10.2 Sampling From the Lot During Casting—The supplier
2 and Fig. 3 (two cuts on each pig). The sawings from all the
may obtain representative chill cast samples from the lot of
pigs shall be mixed thoroughly and quartered, and the samples
molten metal during casting.The shape of the cast sample shall
for analysis taken from the mixed material. The sawings must
be agreed upon by all parties concerned. The molten metal
be free of extraneous material introduced from the saw blade.
shall be mechanically stirred and dip samples taken. If the
All sawings should be screened to remove any coagulated saw
material is produced in a pot or kettle, the material shall be
chips and treated with a strong magnet to remove iron
drossed, stirred, and dip samples taken. If the facility does not
introduced by sawing. No lubricant shall be used when sawing.
allow for dip sampling, the samples shall be taken at the
10.3.3.2 Drilling—The pigs shall be drilled all the way
beginning, at the middle, and at the end of the pour. The
through the depth of pig as shown in Fig. 4 (one hole per pig)
sampling ladle must be clean and heated and the molten metal
or drilled half way through the depth of pig from top and
cast into chilled molds which produce forms suitable for
instrument use, drilling of cast sample, or sawing of cast
sample. Samples drawn at the producers plant shall be from a
clean bath of metal with all dross having been removed.
10.3 Sampling of Cast Pig Product:
10.3.1 If the pigs are of standard form (see Fig. 1), the
sample for chemical analysis shall be taken in accordance with
10.3.3.1, 10.3.3.2,or 10.3.3.4. If the
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