ASTM B560-00(2005)
(Specification)Standard Specification for Modern Pewter Alloys
Standard Specification for Modern Pewter Alloys
ABSTRACT
This specification covers three modern alloy types, made from tin, antimony, and copper, used in the fabrication of pewter articles by casting, spinning, drawing, or forming. These alloy types include: castings (Type I), sheets (Type 2), and special-purpose alloys (Type 3). The metal may be supplied in the form of bar, ingot, rolled sheet, and circle, all of which shall be available in the specified nominal dimensions (thickness, width, length, and/or diameter) and mass. Pewter alloy shall be defined as having a composition within the prescribed range for tin, antimony, and copper, and shall conform to the specified impurity limits for lead, arsenic, iron, and zinc.
SCOPE
1.1 This specification covers three alloy types, made from tin, antimony, and copper, used in the fabrication of pewter articles by casting, spinning, drawing, or forming. The metal may be supplied in the form of bars, ingots, rolled sheet, and circles.
1.2 Pewter alloy shall be defined as having a composition within the range from 90 to 98 % tin, 1 to 8 % antimony, and 0.25 to 3 % copper. Compositions are given in Table 1.
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.
1.4This 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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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B560 – 00 (Reapproved 2005)
Standard Specification for
Modern Pewter Alloys
This standard is issued under the fixed designation B560; 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.
1. Scope 3. Classification
1.1 This specification covers three alloy types, made from 3.1 The hardness and workability of pewter varies with the
tin, antimony, and copper, used in the fabrication of pewter amount of antimony and copper alloyed with the tin. Casting
articles by casting, spinning, drawing, or forming. The metal alloys generally contain less copper and a slightly higher tin
may be supplied in the form of bars, ingots, rolled sheet, and content than sheet alloys. The composition for castings (Type
circles. 1) and sheet (Type 2) are shown in Table 1 , but individual
1.2 Pewter alloy shall be defined as having a composition fabricators may choose compositions in the range given for
within the range from 90 to 98 % tin, 1 to 8 % antimony, and each type.Aspecial-purpose alloy (Type 3), high in tin, is used
0.25 to 3 % copper. Compositions are given in Table 1. for articles requiring a softer metal.All types must conform to
1.3 The values stated in inch-pound units are to be regarded the impurity limits shown in Table 1.
as standard. The values given in parentheses are mathematical 3.2 The following applies to all specified limits in this
conversions to SI units that are provided for information only standard: For purposes of determining conformance with these
and are not considered standard. specifications an observed value or a calculated value shall be
1.4 This standard does not purport to address all of the rounded “to the nearest unit” in the last right-hand place of
safety concerns, if any, associated with its use. It is the figures used in expressing the limiting value, in accordance
responsibility of the user of this standard to become familiar with the rounding method of Practice E29.
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 TABLE 1 Chemical Requirements
safety and health practices, and determine the applicability of
Composition, -wt%
regulatory limitations prior to use.
Element B
Type 1 Casting Type 2 Sheet Alloy Type 3 Special
A
Alloy Purpose Alloys
2. Referenced Documents
UNS Number L13911 L13912 L13963
2.1 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to
Tin 90–93 90–93 95–98
Antimony 6–8 5–7.5 1.0–3.0
Determine Conformance with Specifications
Copper 0.25–2.0 1.5–3.0 1.0–2.0
E51 Method for Spectrographic analysis of Tin Alloys by
Lead, max 0.05 0.05 0.05
the Powder Technique
Arsenic, max 0.05 0.05 0.05
Iron, max 0.015 0.015 0.015
E57 Method for ChemicalAnalysis of White Metal Bearing
Zinc, max 0.005 0.005 0.005
Alloys
A
Nominal Type 1 alloy composition: 92 Sn, 7.5 Sb, and 0.5 Cu.
E88 Practice for Sampling Nonferrous Metals andAlloys in
B
Nominal Type 2 alloy composition: 91 Sn, 7 Sb, and 2 Cu.
Cast Form for Determination of Chemical Composition
This specification is under the jurisdiction of ASTM Committee B02 on
4. Ordering Information
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1 Orders for material under this specification should
B02.02 on Refined Lead, Tin, Antimony, and Their Alloys.
Current edition approved Nov. 1, 2005. Published February 2006. Originally
include the following:
approved in 1972. Last previous edition approved in 2000 as B560 - 00. DOI:
4.1.1 Quantity,
10.1520/B0560-00R05.
2 4.1.2 Form—bars, sheet, or circles,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.3 Type and composition (Table 1),
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
4.1.4 Size (sheet—thickness, width and length; circles—
the ASTM website.
thickness and diameter), and
Withdrawn. The last approved version of this historical standard is referenced
4.1.5 Marking.
on www.astm.org.
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B560 – 00 (2005)
5. Materials and Manufacture 9. Sampling
5.1 The manufacturer shall use care to have each shipment 9.1 Unless otherwise agreed upon by the manufacturer and
of each form as uniform in quality and composition as possible the purchaser, heat (ladle) analyses furnished by the manufac-
and of a commercially satisfactory appearance. turer shall be accepted as defining the composition of the
material furnished.
6. Chemical Composition
9.2 If samples for check analyses are desired, they shall be
so specified by the purchaser at the time of placement of the
6.1 The material shall conform to the requirements as to
order.
chemical composition specified in Table 1. Nominal composi-
9.3 Check analyses samples shall consist of three bars or
tions, agreed upon by the manufacturer and purchaser, may be
ingots selected to represent a shipment of less than 1000 lb
prescribed under this specification.
(454 kg) and five bars or ingots to represent a shipment of over
7. Dimensions, Mass, and Permissible Variations 1000 lb (454 kg). The bars shall be selected at random,
preferably under such conditions that every piece in the lot is
7.1 Sheet pewter is commercially available in thicknesses
accessible for selection (for example, while shipment is being
from 0.031 to 0.064 6 0.002 in. (0.79 to 1.63 mm) (Table 2).
loaded or unloaded).Asaw cut shall be made entirely through
Thinner sheet down to a thickness of 0.010 in. (0.25 mm) can
the piece on its long axis and the saw chips collected. Sawings
be supplied to special order. Sheet can be supplied in widths up
thoroughly mixed and split into three parts shall constitute
...
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