ASTM B102-00
(Specification)Standard Specification for Lead- and Tin-Alloy Die Castings
Standard Specification for Lead- and Tin-Alloy Die Castings
SCOPE
1.1 This specification covers die castings produced from five alloys whose primary metal is either lead or tin. Table 1 lists the designations for these alloys as well as their chemical compositions.
1.2 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.
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Designation: B 102 – 00
Standard Specification for
Lead- and Tin-Alloy Die Castings
This standard is issued under the fixed designation B 102; 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.
1. Scope 2.4 Military Standards: MIL-STD-129 Marking for Ship-
ment and Storage (Military Agencies)
1.1 This specification covers die castings produced from
five alloys whose primary metal is either lead or tin. Table 1
2.5 Military Specifications: MIL-P-116 Methods of Preser-
lists the designations for these alloys as well as their chemical
vation
compositions.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions:
priate safety and health practices and determine the applica-
3.1.1 die casting—a metal object produced by the introduc-
bility of regulatory limitations prior to use.
tion of molten metal under substantial pressure into a metal die
2. Referenced Documents and characterized by a high degree of fidelity to the die cavity.
2.1 The following documents of the issue in effect on date
4. Ordering Information
of order acceptance form a part of this specification to the
4.1 Orders for die castings shall include the following basic
extent referenced herein.
information:
2.2 ASTM Standards:
4.1.1 This specification number and date,
B 23 Specification for White Metal BearingAlloys (Known
2 4.1.2 Quantity and delivery schedule, as required,
Commercially as Babbitt Metal)
4.1.3 Part name and number,
B 275 Practice for Codification of Certain Nonferrous Met-
3 4.1.4 Alloy (Table 1), and
als and Alloys, Cast and Wrought
4.1.5 Drawings of die casting, when required, giving all
E 8 Test Methods forTensionTesting of Metallic Materials
necessary dimensions and showing latest revisions and allow-
E 23 Test Methods for Notched Bar Impact Testing of
4 ances for machining, if any. Location of ejector pin marks or
Metallic Materials
parting lines shall be at the option of the producer, unless
E 29 Practice for Using Significant Digits in Test Data to
5 specifically designated on the drawing.
Determine Conformance with Specifications
4.2 Additional tests, options and special inspection require-
E 46 Test Methods for Chemical Analysis of Lead- and
6 ments as provided below shall be specified in the contract or
Tin-Base Solder
purchase order, as additional procedures. Extended delivery
E 88 Practice for Sampling Nonferrous Metals and Alloys
7 time may be involved.
in Cast Form for Determination of Chemical Composition
4.2.1 Chemical analysis (7.1.1),
2.3 Federal Standards:
8 4.2.2 Quality assurance (Section 9),
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
4.2.3 Special proof tests or mechanical properties (Section
7),
This specification is under the jurisdiction of ASTM Committee B02 on 4.2.4 General quality options for internal soundness or for
Nonferrous Metals and Alloys,and is the direct responsibility of Subcommittee
finish (Section 11),
B02.02on Lead, Tin and their Alloys.
4.2.5 Source inspection (Section 11),
Current edition approved Dec. 10, 2000. Published January 2001. Originally
4.2.6 Certification (Section 12),
published as B 102 – 36. Last previous edition B 102-93
Annual Book of ASTM Standards, Vol 02.04.
4.2.7 Marking for identification (Section 13), and
Annual Book of ASTM Standards, Vol 02.02.
4.2.8 Special packaging (Section 14).
Annual Book of ASTM Standards, Vol 03.01.
Annual Book of ASTM Standards, Vol 14.02.
Discontinued-See 1994 Annual Book of ASTM Standards, Vol 03.05.
Annual Book of ASTM Standards, Vol 03.05.
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 102
A
TABLE 1 Chemical Requirements
Composition, %
B,C
Alloy Tin Antimony Lead Copper Other Elements, max
Min Desired Max Min Desired Max Min Desired Max Min Desired Max Iron Arsenic Zinc Aluminum
D
CY44A 90 91 92 4 4.5 5 . . 0.35 4 4.5 5 0.08 0.08 0.01 0.01
YC135A 80 82 84 12 13 14 . . 0.35 4 5 6 0.08 0.08 0.01 0.01
D
PY1815A 64 65 66 14 15 16 17 18 19 1.5 2 2.5 0.08 0.15 0.01 0.01
D
YT155A 4 5 6 14 15 16 79 80 81 . . 0.50 . 0.15 0.01 0.01
D
Y10A . . . 9.25 10 10.75 89 90 91 . . 0.50 . 0.15 0.01
A
Forpurposesofacceptanceandrejection,theobservedvalueorcalculatedvalueobtainedfromanalysisshouldberoundedofftothenearestunitinthelastright-hand
place of figures, used in expressing the specified limit, in accordance with the rounding procedure prescribed in Section 3 of Recommended Practice E 29.
B
These alloy designations were established in accordance with Recommended Practice B 275.
C
Prior to 1952 these alloys were designated as No. 1, No. 2, No.3, No. 4, and No. 5, respectively.
D
These alloys are similar to grades Nos.1, 5, 8 and 12, respectively, of Specifications B 23.
5. Quality Assurance 7. Permissible Variations in Dimensions
5.1 Responsibility for Inspection—When specified in the 7.1 Permissible variations in dimensions shall be within the
contract or purchase order, the producer or supplier is respon-
limits specified on the drawings or in the contract or purchase
sible for the performance of all inspection and test require- order.
ments specified herein. Except as otherwise specified in the
7.2 Dimensional tolerance deviations waived by the pur-
contract or order, the producer or supplier may use his own or
chasershallbeconfirmedinwritingtotheproducerorsupplier.
any other suitable facilities for the performance of the inspec-
tion and test requirements specified herein, unless disapproved
8. General Quality
by the purchaser. The purchaser shall have the right to perform
8.1 Internal Soundness—When specified, the soundness of
any of the inspections and tests set forth in this specification.
die castings shall conform to standards or requirements agreed
Quality assurance standards shall be agreed upon between the
upon between the producer or supplier and the purchaser. The
producer or supplier and purchaser at the time a contract or
number and extent of imperfections shall not exceed those
order is placed.
specified by the purchaser. The standards or requirements may
5.2 Lot Definition— An inspection lot shall be defined as
consist of radiographs, photographs, or sectioned die castings.
follows:
8.2 Imperfections inherent in die castings shall not be cause
5.2.1 An inspection lot shall consist of the production from
for rejection provided it is demonstrated that the die castings
each die or compound die on each machine for each 24 h
are in accordance with the requirements and standards agreed
during the first week of normal operation and the production
upon.
for each 48 h thereafter of normal operation. Any significant
8.3 Workmanship— Die castings shall be of uniform quality
change in the machine, composition, die or continuity of
free of injurious discontinuities that will adversely affect their
operation shall be considered as the start of a new lot. Die
serviceability.
castings inspected by this method shall be so marked or
8.4 Finish—When specified in the contract or purchase
handled during the finishing operations as not to lose their
order the as-cast surface finish required shall conform to
identity.
standards agreed upon between the purchaser and the producer
5.2.2 Each die casting of a randomly selected sample shall
or supplier.
be examined to determine conformance to the requirements
8.5 Pressure Tightness—When specified in the contract or
with respect to general quality, dimensions, and identification
purchase order the pressure tightness of die castings shall
marking. The producer or supplier may use a system of
conform to standards agreed upon between the purchaser and
statistical quality control for such examinati
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