ASTM B299-07
(Specification)Standard Specification for Titanium Sponge
Standard Specification for Titanium Sponge
ABSTRACT
This specification covers virgin titanium metal melting stock. This virgin metal is commonly designated as sponge titanium because it is most commonly porous and spongelike in texture, although metal produced electrolytically is granular and is essentially nonporous. Sponge titanium is usually prepared by reduction of titanium tetrachloride and gets its spongelike character from the processes involved in production. This spongy characteristic, however, is not considered essential and may be expected to vary greatly with manufacturing methods. For example, virgin titanium produced electrolytically is crystalline or granular in character and is essentially nonporous. The metal is usually supplied in lump or granular form. The virgin titanium shall be free of scrap, intentionally added contaminants and shall be in uniform, well-mixed blends. The titanium metal shall conform to the chemical composition and Brinell hardness requirements prescribed.
SCOPE
1.1 This specification covers virgin titanium metal melting stock. This virgin metal is commonly designated as sponge titanium because it is most commonly porous and spongelike in texture, although metal produced electrolytically is granular and is essentially nonporous.
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.
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Designation: B 299 – 07
Standard Specification for
1
Titanium Sponge
This standard is issued under the fixed designation B 299; 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 istic, however, is not considered essential and may be expected
to vary greatly with manufacturing methods. For example,
1.1 This specification covers virgin titanium metal melting
virgin titanium produced electrolytically is crystalline or
stock. This virgin metal is commonly designated as sponge
granular in character and is essentially nonporous.The metal is
titaniumbecauseitismostcommonlyporousandspongelikein
usually supplied in lump or granular form. This specification,
texture, although metal produced electrolytically is granular
however, is not limited to metal prepared by reduction of the
and is essentially nonporous.
tetrachloride.
1.2 The values stated in inch-pound units are to be regarded
4.2 Only virgin titanium, free of scrap and intentionally
as the standard. The values given in parentheses are for
added contaminants, shall be supplied under this specification.
information only.
It shall be supplied in uniform, well-mixed blends, each of
2. Referenced Documents
which shall be clearly designated.
2
2.1 ASTM Standards:
5. Chemical Composition
E10 Test Method for Brinell Hardness of Metallic Materi-
5.1 The titanium metal supplied under this specification
als
shall conform to the chemical composition requirements pre-
E 1409 Test Method for Determination of Oxygen and
scribed in Table 1.
Nitrogen in Titanium and TitaniumAlloys by the Inert Gas
Fusion Technique
6. Hardness
E 1447 Test Method for Determination of Hydrogen in
6.1 The Brinell Hardness of a lot shall be the average of the
Titanium and Titanium Alloys by the Inert Gas Fusion
hardness determinations on each button prepared as described
Thermal Conductivity/Infrared Detection Method
in 5.1.The average hardness of each button for the lot shall not
E 1941 TestMethodforDeterminationofCarboninRefrac-
exceedthevaluesspecifiedinTable1.Measurementshallbein
tory and Reactive Metals and Their Alloys
accordance with Test MethodE10, using a 0.394 in. (10-mm)
E 2371 Test Method forAnalysis of Titanium and Titanium
ball, 3307-lbf (1500-kgf) load, and 30-s dwell.
Alloys by Atomic Emission Plasma Spectrometry
7. Sampling
3. Terminology
7.1 The sampling method used shall be a matter of agree-
3.1 Lot Definitions:
ment between the manufacturer and the purchaser. The follow-
3.1.1 sponge, n—a lot shall consist of a single blend
ing are acceptable industrial practices:
produced at one time.
7.1.1 The blend shall be sampled as required in 7.1.2 and
4. Materials and Manufacture 7.1.3 unless otherwise agreed upon between the manufacturer
and the purchaser.
4.1 Sponge titanium is usually prepared by reduction of
7.1.2 Thesamplefordeterminingtheconformanceofthelot
titanium tetrachloride and gets its spongelike character from
to the chemical and physical requirements shall be obtained by
the processes involved in production. This spongy character-
sampling the lot to produce a 0.25 % sample but not less than
30 lb (14 kg) providing the lot is crushed to a particle size of
1
This specification is under the jurisdiction of ASTM Committee B10 on
1 in. (25.4 mm) or less in size. The blended evaluation sample
Reactive and Refractory Metals and Alloys and is the direct responsibility of
shall be split to produce two or more samples 0.1 lb (45 g) or
Subcommittee B10.01 on Titanium.
moreeach,tobemeltedintobuttons,andonesampleofatleast
Current edition approved Nov. 1, 2007. Published November 2007. Originally
approved in 1955. Last previous edition approved in 2001 as B 299 - 01.
0.5 lb (227 g).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1.3 The buttons shall be melted in a furnace under an
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
inert-gas atmosphere. The resulting 0.1-lb (45-g) buttons shall
Standards volume information, refer to the standard’s Document Summary page on
be checked for Brinell hardness and samples shall be taken
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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B299–07
TABLE 1 Chemical Requirements
Weight by % (Dry Basis)
Element
A B C D E
GP EL SL ML MD
Nitrogen, max 0.02 0.008 0.015 0.015 0.015
Carbon, max 0.03 0.02 0.02 0.02 0.02
F
Sodium, max 0.10 0.19 . .
F
Magnesium, max 0.08 . 0.50 0.08
Aluminum, max 0.05 0.03 0.05 0.05 .
Chloride, max 0.20 0.10 0.2
...
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:B299–01 Designation: B 299 – 07
Standard Specification for
1
Titanium Sponge
This standard is issued under the fixed designation B 299; 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
1.1 This specification covers virgin titanium metal melting stock. This virgin metal is commonly designated as sponge titanium
because it is most commonly porous and spongelike in texture, although metal produced electrolytically is granular and is
essentially nonporous.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
E 10 Test Method for Brinell Hardness of Metallic Materials
E120Test Methods for Chemical Analysis of Titanium and Titanium Alloys 1409 Test Method for Determination of Oxygen
and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique
E 1447 Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal
Conductivity/Infrared Detection Method
E 1941 Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys
E 2371 Test Method for Analysis of Titanium and Titanium Alloys by Atomic Emission Plasma Spectrometry
3. Terminology
3.1 Lot Definitions:
3.1.1 castings—a lot shall consist of all castings produced from the same pour.
3.1.2ingot—no definition required.
3.1.3rounds, flats, tubes, and wrought powder metallurgical products (single definition, common to nuclear and non-nuclear
standards)—a lot shall consist of a material of the same size, shape, condition, and finish produced from the same ingot or powder
blend by the same reduction schedule and the same heat treatment parameters. Unless otherwise agreed between manufacturer and
purchaser, a lot shall be limited to the product of an 8 h period for final continuous anneal, or to a single furnace load for final
batch anneal.
3.1.4spongesponge, n—a lot shall consist of a single blend produced at one time.
3.1.5weld fittings—definitions is to be mutually agreed upon between manufacturer and the purchaser.
4. Materials and Manufacture
4.1 Sponge titanium is usually prepared by reduction of titanium tetrachloride and gets its spongelike character from the
processes involved in production. This spongy characteristic, however, is not considered essential and may be expected to vary
greatly with manufacturing methods. For example, virgin titanium produced electrolytically is crystalline or granular in character
and is essentially nonporous. The metal is usually supplied in lump or granular form. This specification, however, is not limited
to metal prepared by reduction of the tetrachloride.
4.2 Only virgin titanium, free of scrap and intentionally added contaminants, shall be supplied under this specification. It shall
be supplied in uniform, well-mixed blends, each of which shall be clearly designated.
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
B10.01 on Titanium.
Current edition approved Nov. 10, 2001. Published January 2002. Originally published as B299-55T. Last previous edition B299-99.
Current edition approved Nov. 1, 2007. Published November 2007. Originally approved in 1955. Last previous edition approved in 2001 as B 299 - 01.
2
Annual Book of ASTM Standards, Vol 03.01.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@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 ----------------------
B299–07
5. Chemical Composition
5.1 The titanium metal supplied under this specification shall conform to the chemical composition requirements prescribed in
Table 1.
6. Hardness
6.1 The Brinell Hardness of a lot shall be the average of the hardness determinations on each button prepared as described in
Section 5.5.1. The average hardness of each button for the lot shall not exceed the values specified in Table 1. Measurement shall
be in accordance with Test
...
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