ASTM B339-00
(Specification)Standard Specification for Pig Tin
Standard Specification for Pig Tin
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 the standard. The values given in parentheses are for information only.
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 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 339 – 00
Standard Specification for
Pig Tin
This standard is issued under the fixed designation B 339; 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 (e) 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 the standard. The values given in parentheses are for
Copper, max 0.04 0.04 0.005
information only. Iron, max 0.010 0.010 0.010
Lead, max 0.05 0.010 0.001
1.4 This standard does not purport to address all of the
Ni+ Co, max 0.01 0.01 0.010
safety concerns, if any, associated with its use. It is the
Sulfur, max 0.01 0.01 0.010
Zinc, max 0.005 0.005 0.005
responsibility of the user of this standard to establish appro-
Silver, max 0.01 0.01 0.010
priate safety and health practices and determine the applica-
A
Other impurities 0.010 0.010
bility of regulatory limitations prior to use.
A
Maximum per impurity not listed above.
2. Referenced Documents
2.1 ASTM Standards:
4. Ordering Information
E 29 Practice for Using Significant Digits in Test Data to
4.1 Orders for material under this specification shall include
Determine Conformance with Specifications
the following information:
E 46 Test Methods for Chemical Analysis of Lead- and
4.1.1 ASTM designation and year of issue,
Tin-Base Solder
4.1.2 Quantity in weight, metric tons or kilograms,
E 51 Method for Spectrographic Analysis of Tin Alloys by
4.1.3 Shape and size,
the Powder Technique
4.1.4 Method of manufacturing (Section 5),
E 57 Method for Chemical Analysis of White Metal Bear-
4.1.5 Chemistry (Section 6),
ing Alloys
4.1.6 Product marking (Section 16), and
E 88 Practice for Sampling Nonferrous Metals and Alloys
4.1.7 Packaging (Section 17).
in Cast Form for Determination of Chemical Composition
5. Materials and Manufacture
3. Terminology
5.1 The refined tin shall be produced from primary, second-
3.1 Definitions of Terms Specific to This Standard:
ary, or a combination of tin-bearing materials to obtain the
3.1.1 pig—an oblong or square mass of metal that has been
requirements of this specification.
cast while still molten into a mold that gives the metal its
5.2 The refined metal for GradeAtin may be manufactured
particular shape.
by fire refining, vacuum refining, electrolytic or electrowinning
refining methods, or a combination of these methods.
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
6. Chemical Composition
B02.02 on Refined Lead, Tin, Antimony, and Their Alloys.
6.1 The tin shall conform to the requirements as to chemical
Current edition approved Oct. 10, 2000. Published November 2000. Originally
published as B 339-67. Last previous edition B 339-95. composition prescribed in Table 1.
Annual Book of ASTM Standards, Vol 14.02.
Discontinued—See 1994 Annual Book of ASTM Standards, Vol 03.05.
7. Methods of Chemical Analysis
Discontinued—See 1984 Annual Book of ASTM Standards, Vol 03.06.
7.1 An analysis of each lot shall be made by the supplier.
Discontinued—See 1987 Annual Book of ASTM Standards, Vol 03.05.
Annual Book of ASTM Standards, Vol 03.05. The analysis shall be made from representative test samples
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
B 339
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
bear a single identifying number that can be related to the
manufacturing lot. This lot number can be cast, metal die
stamped, or marked legibly upon each pig.
9. Workmanship, Finish, and Appearance
9.1 The manufacturer shall use care to have each lot of tin
material as uniform in quality as possible.
FIG. 1 Pig Tin Sampling Methods
9.2 The pigs shall be clean and reasonably free of adhering
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
bottom as shown in Fig. 5 (two holes ⁄2 depth per pig).Adrill
instrument use, drilling of cast sample, or sawing of cast
size of about ⁄2 in. (12.7 mm) in diameter is preferred and in
sample. Samples drawn at the producers plant shall be from a
no instance shall the drill size be less than ⁄8in. (9.5 mm) in
clean bath of metal with all dross having been removed.
diameter. A standing drill or bench drill should be used
10.3 Sampling of Cast Pig Product:
whenever possible, as hand held drills are normally high speed,
10.3.1 If the pigs are of standard form (see Fig. 1), the
therefore creating problems with drill breakage. In drilling, the
sample for chemical analysis shall be taken in accordance with
holes shall be spaced along a diagonal line from one corner of
10.3.3.1, 10.3.3.2, or 10.3.3.4. If the pigs differ in shape and
size from those shown in Fig. 1, the supplier and purchaser
should agree mutu
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.