ASTM B760-07
(Specification)Standard Specification for Tungsten Plate, Sheet, and Foil
Standard Specification for Tungsten Plate, Sheet, and Foil
ABSTRACT
This specification covers wrought unalloyed tungsten plate, sheet, and foil. The various tungsten flat products covered by this specification shall be formed with the conventional rolling, forging, or extrusion equipment, normally found in primary ferrous and nonferrous plants. The ingot metal shall be consolidated employing either the powder metallurgy or vacuum-arc-casting process. The materials shall conform to the required chemical composition for carbon, oxygen, nitrogen, iron, nickel, and silicon. Plate, sheet, and foil shall be furnished in the following metallurgical condition: hot-rolled, stress relieved, and cold-rolled. The materials shall also conform to the required permissible variations in physical dimensions such as thickness, width, length, and flatness.
SCOPE
1.1 This specification covers wrought unalloyed tungsten plate, sheet, and foil.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following precautionary caveat pertains only to the test method portions of this specification: 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:B760 −07
StandardSpecification for
1
Tungsten Plate, Sheet, and Foil
This standard is issued under the fixed designation B760; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.2 Product Forms:
3.2.1 foil, n—a flat product less than 0.005 in. (0.13 mm) in
1.1 This specification covers wrought unalloyed tungsten
thickness.
plate, sheet, and foil.
3.2.2 plate, n—aflatproduct0.188in.(4.75mm)ormorein
1.2 The values stated in inch-pound units are to be regarded
thickness.
as the standard. The values given in parentheses are for
3.2.3 sheet, n—a flat product from .005 in. (0.13 mm) to
information only.
0.187 in. (4.75 mm) in thickness.
1.3 The following precautionary caveat pertains only to the
test method portions of this specification: This standard does
4. Ordering Information
not purport to address all of the safety concerns, if any,
4.1 Ordersformaterialunderthisspecificationshallinclude
associated with its use. It is the responsibility of the user of this
the following information:
standard to establish appropriate safety and health practices
4.1.1 Material identification and metallurigical condition
and determine the applicability of regulatory limitations prior
(Section 7),
to use.
4.1.2 Product form (Section 3),
4.1.3 Chemical requirements (Table 1),
2. Referenced Documents
4.1.4 Tolerances (Section 9, Table 2, and Fig. 1),
2
2.1 ASTM Standards:
4.1.5 Workmanship and quality level requirements (Section
E29Practice for Using Significant Digits in Test Data to
10),
Determine Conformance with Specifications
4.1.6 Packaging (Section 14),
4.1.7 Marking (Section 14),
3. Terminology
4.1.8 Certification and reports (Section 13), and
3.1 Lot Definitions:
4.1.9 Disposition of rejected material (Section 12).
3.1.1 ingot, n—no definition required.
5. Materials and Manufacture
3.1.2 A manufacturing lot shall consist of a material of the
samesize,shape,condition,andfinishproducedfromtheingot 5.1 The various tungsten flat products covered by this
orpowderblendbythesamerollingreductionscheduleandthe specification shall be formed with the conventional rolling,
same heat treatment parameters. Unless otherwise agreed forging, or extrusion equipment, normally found in primary
between manufacturer and purchaser, a lot shall be limited to ferrous and nonferrous plants.
the product of an 8 h period for final continuous anneal, or to
5.2 The ingot metal is consolidated employing either the
a single furnace load for final batch anneal.
powder metallurgy or vacuum-arc-casting process.
3.1.3 A chemical analysis lot shall consist of a single
powder blend in the case of products manufactured from 6. Chemical Composition
pressed and sintered powder metallurgy shapes, or a single
6.1 The tungsten ingots or billets for conversion to finished
ingot in the case of products manufactured from ingot.
products covered by this specification shall conform to the
requirements of the chemical composition prescribed in Table
1.
1
This specification is under the jurisdiction of ASTM Committee B10 on
Reactive and Refractory Metals and Alloys and is the direct responsibility of
6.2 Heat Analysis:
Subcommittee B10.04 on Molybdenum and Tungsten.
6.2.1 Heat analysis is an analysis made by the manufacturer
Current edition approved Dec. 1, 2007. Published December 2007. Originally
ofthemetalonarepresentativesampleofpowderfromasingle
approved in 1986. Last previous edition approved in 1999 as B760-86(1999).
DOI: 10.1520/B0760-07.
powder blend in the case of material made from pressed and
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
sintered powder billets, or on a representative sample of a cast
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ingot or intermediate product from that ingot in the case of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. material made from cast ingot.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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B760−07
TABLE 1 Chemical Composition/Check Analysis
9.2 The width tolerances shall be as agreed upon between
Composition, Permissible Variations in the manufacturer and the purchaser. In general, shearing
Element
max, % Check Analysis, %
1
tolerancewillbe 6 ⁄16in.(61.6mm)andslittingtolerancewill
C 0.010 ±0.002 1
be 6 ⁄32 in. (60.8 mm).
A
O 0.010 + 10 % relative
N 0.010 + 0.0005
9.3 The length and camber tolerances shall be as agreed
Fe 0.010 + 0.001
upon between the manufacturer and the purchaser.
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:B760–86(Reapproved 1999) Designation: B 760 – 07
Standard Specification for
1
Tungsten Plate, Sheet, and Foil
This standard is issued under the fixed designation B760; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1This specification covers unalloyed tungsten plate, sheet, and foil.
1.2The values stated in inch-pound units are to be regarded as the standard.
1.1 This specification covers wrought unalloyed tungsten plate, sheet, and foil.
1.2 Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformation
only.
1.3 The following precautionary caveat pertains only to the test method portions of this specification: 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.
2. Terminology Referenced Documents
2.1 Definitions of Terms Specific to This Standard:
2.1.1foil—any product less than 0.005 in. (0.13 mm) in thickness.
3
2.1.2plate—any product ⁄16 in. (4.75 mm) or more in thickness.
2.1.3sheet—any product 0.187 in. (4.75 mm) or less in thickness, to a minimum of 0.005 in. (0.13 mm) in thickness. ASTM
2
Standards:
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3. Ordering Information
3.1Orders for material under this specification shall include the following information:
3.1.1Material identification and temper designation,
3.1.2Product form (Section 2Terminology
3.1 Lot Definitions:
3.1.1 ingot, n—no definition required.
3.1.2 Amanufacturing lot shall consist of a material of the same size, shape, condition, and finish produced from the ingot or
powder blend by the same rolling reduction schedule and the same heat treatment parameters. Unless otherwise agreed between
manufacturerandpurchaser,alotshallbelimitedtotheproductofan8hperiodforfinalcontinuousanneal,ortoasinglefurnace
load for final batch anneal.
3.1.3 A chemical analysis lot shall consist of a single powder blend in the case of products manufactured from pressed and
sintered powder metallurgy shapes, or a single ingot in the case of products manufactured from ingot.
3.2 Product Forms:
3.2.1 foil, n—a flat product less than 0.005 in. (0.13 mm) in thickness.
3.2.2 plate, n—a flat product 0.188 in. (4.75 mm) or more in thickness.
3.2.3 sheet, n—a flat product from .005 in. (0.13 mm) to 0.187 in. (4.75 mm) in thickness.
4. Ordering Information
4.1 Orders for material under this specification shall include the following information:
4.1.1 Material identification and metallurigical condition (Section 7),
1
This specification is under the jurisdiction of ASTM Committee B-10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of Subcommittee
B10.04 on Molybdenum and Tungsten.
Current edition approved Feb. 28, 1986. Published April 1986.
1
This specification is under the jurisdiction of ASTM Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of Subcommittee
B10.04 on Molybdenum and Tungsten.
Current edition approved Dec. 1, 2007. Published December 2007. Originally approved in 1986. Last previous edition approved in 1999 as B760-86(1999).
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B760–07
3.1.3Chemical requirements (
4.1.2 Product form (Section 3),
4.1.3 Chemical requirements (Table 1),
3.1.4Tolerances (Section 6
4.1.4 Tolerances (Section 9, Table 2, and Fig. 1),
34.1.5 Workmanship and quality level requirements (Section 710),
3.1.6Packaging (Section 13
4.1.6 Packaging (Section 14),
3.1.7Marking (Section 12
4.1.7 Marking (Section 14),
3.1.8Certification and reports (Section 11
4.1.8 Certification and reports (Section 13), and
3.1.9Disposition of rejected material (Section 10
4.1.9 Disposition of rejected material (Section 12).
4.Materials and
...
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