ASTM B560-20

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 Pewter alloy types as shown in Table 1, made from tin, antimony, and copper, used in the production and fabrication of finished or semi-finished pewter products 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 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, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Sep-2020
• ICS: 77.120.60 - Lead, zinc, tin and their alloys
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.02 - Refined Lead, Tin, Antimony, and Their Alloys

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B560 −20
Standard Specification for
1
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* E51 Method for Spectrographic Analysis of Tin Alloys by
3
the Powder Technique (Withdrawn 1983)
1.1 This specification covers three Pewter alloy types as
E57 Methods for ChemicalAnalysis ofWhite Metal Bearing
shown in Table 1, made from tin, antimony, and copper, used
3
Alloys (Withdrawn 1986)
in the production and fabrication of finished or semi-finished
E88 Practice for Sampling Nonferrous Metals and Alloys in
pewterproductsbycasting,spinning,drawing,orforming.The
Cast Form for Determination of Chemical Composition
metal may be supplied in the form of bars, ingots, rolled sheet,
E527 Practice for Numbering Metals and Alloys in the
and circles.
Unified Numbering System (UNS)
1.2 Pewter alloy shall be defined as having a composition
within the range from 90 to 98 % tin, 1 to 8 % antimony, and
3. Classification
0.25 to 3 % copper. Compositions are given in Table 1.
3.1 The hardness and workability of pewter varies with the
1.3 The values stated in inch-pound units are to be regarded
amount of antimony and copper alloyed with the tin. Casting
as standard. The values given in parentheses are mathematical
alloys generally contain less copper and a slightly higher tin
conversions to SI units that are provided for information only
content than sheet alloys. The composition for castings (Type
and are not considered standard.
1) and sheet (Type 2) are shown in Table 1, but individual
fabricators may choose compositions in the range given for
1.4 This standard does not purport to address all of the
each type.Aspecial-purpose alloy (Type 3), high in tin, is used
safety concerns, if any, associated with its use. It is the
for articles requiring a softer metal.All types shall conform to
responsibility of the user of this standard to become familiar
the impurity limits shown in Table 1.
with all hazards including those identified in the appropriate
Material Safety Data Sheet (MSDS) for this product/material
3.2 The following applies to all specified limits in this
as provided by the manufacturer, to establish appropriate
standard: For purposes of determining conformance with these
safety, health, and environmental practices, and determine the
specifications an observed value or a calculated value shall be
applicability of regulatory limitations prior to use.
rounded “to the nearest unit” in the last right-hand place of
1.5 This international standard was developed in accor-
figures used in expressing the limiting value, in accordance
dance with internationally recognized principles on standard-
with the rounding method of Practice E29.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 4. Ordering Information
mendations issued by the World Trade Organization Technical
4.1 Orders for material under this specification should
Barriers to Trade (TBT) Committee.
include the following:
4.1.1 Quantity,
2. Referenced Documents
4.1.2 Form—bars, sheet, or circles,
2
2.1 ASTM Standards:
4.1.3 Type and composition (Table 1),
E29 Practice for Using Significant Digits in Test Data to
4.1.4 Size (sheet—thickness, width and length; circles—
Determine Conformance with Specifications
thickness and diameter), and
4.1.5 Marking.
1
This specification is under the jurisdiction of ASTM Committee B02 on
5. Materials and Manufacture
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.02 on Refined Lead, Tin, Antimony, and Their Alloys. 5.1 The manufacturer shall use care to have each shipment
Current edition approved Oct. 1, 2020. Published October 2020. Originally
of each form as uniform in quality and composition as possible
approved in 1972. Last previous edition approved in 2014 as B560 – 00 (2014).
and of a commercially satisfactory appearance.
DOI: 10.1520/B0560-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B560 − 00 (Reapproved 2014) B560 − 20
Standard Specification for
1
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 Scope*
1.1 This specification covers three alloy types, Pewter alloy types as shown in Table 1, made from tin, antimony, and copper, used
in the production and fabrication of pewter articlesfinished or semi-finished pewter products 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 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 safety, health, and
healthenvironmental practices, and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
E51 Method for Spectrographic Analysis of Tin Alloys by the Powder Technique (Withdrawn 1983)
3
E57 Methods for Chemical Analysis of White Metal Bearing Alloys (Withdrawn 1986)
E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. Classification
3.1 The hardness and workability of pewter varies with the amount of antimony and copper alloyed with the tin. Casting alloys
generally contain less copper and a slightly higher tin content than sheet alloys. The composition for castings (Type 1) and sheet
1
This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.02 on Refined
Lead, Tin, Antimony, and Their Alloys.
Current edition approved Oct. 1, 2014Oct. 1, 2020. Published October 2014October 2020. Originally approved in 1972. Last previous edition approved in 20102014 as
B560 – 00 (2010).(2014). DOI: 10.1520/B0560-00R14.10.1520/B0560-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B560 − 20
TABLE 1 Chemical Requirements
Composition, -wt%
Element
Type 1 Casting Type 2 Sheet Type 3 Special
AB BC
Alloy Alloy Purpose Alloys
A
UNS Number L13911 L13912 L13963
Tin 90–93 90–93 95–98
Antimony 6–8 5–7.5 1.0–3.0
Copper 0.25–2.0 1.5–3.0 1.0–2.0
Lead, max 0.05 0.05 0.05
Arsenic, max 0.05 0.05 0.05
Iron, max 0.015 0.015 0.015
Zinc, max 0.005 0.005 0.005
A
UNS Designations established in accordance with Practice E527.
B
Nominal Type 1 alloy composition: 92 Sn, 7.5 Sb, and 0.5 Cu.
C
Nominal Type 2 alloy composition: 91 Sn, 7 Sb, and 2 Cu.
(Type 2) are shown in Table 1, but individual fabricators may choose compositions in the range given for each type. A
special-purpose alloy (Type 3), high in tin, is used for ar
...