ASTM B299-08
(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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
General Information
Relations
Buy Standard
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:B299 −08
StandardSpecification for
1
Titanium Sponge
This standard is issued under the fixed designation B299; 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 the processes involved in production. This spongy
characteristic, however, is not considered essential and may be
1.1 This specification covers virgin titanium metal melting
expected to vary greatly with manufacturing methods. For
stock. This virgin metal is commonly designated as sponge
example, virgin titanium produced electrolytically is crystal-
titaniumbecauseitismostcommonlyporousandspongelikein
line or granular in character and is essentially nonporous. The
texture, although metal produced electrolytically is granular
metal is usually supplied in lump or granular form. This
and is essentially nonporous.
specification, however, is not limited to metal prepared by
1.2 The values stated in inch-pound units are to be regarded
reduction of the tetrachloride.
as standard. The values given in parentheses are mathematical
4.2 Only virgin titanium, free of scrap and intentionally
conversions to SI units that are provided for information only
added contaminants, shall be supplied under this specification.
and are not considered standard.
It shall be supplied in uniform, well-mixed blends, each of
which shall be clearly designated.
2. Referenced Documents
2
2.1 ASTM Standards:
5. Chemical Composition
E10 Test Method for Brinell Hardness of Metallic Materials
5.1 The titanium metal supplied under this specification
E1409 Test Method for Determination of Oxygen and Nitro-
shall conform to the chemical composition requirements pre-
gen in Titanium and Titanium Alloys by the Inert Gas
scribed in Table 1.
Fusion Technique
E1447 Test Method for Determination of Hydrogen in Tita-
6. Hardness
nium and Titanium Alloys by Inert Gas Fusion Thermal
Conductivity/Infrared Detection Method
6.1 Brinell hardness testing is optional unless requested by
E1941 Test Method for Determination of Carbon in Refrac-
the purchaser. The Brinell Hardness of a lot shall be the
tory and Reactive Metals andTheirAlloys by Combustion
average of the hardness determinations on each button pre-
Analysis
pared as described in 5.1. The average hardness of each button
E2371 Test Method for Analysis of Titanium and Titanium
for the lot shall not exceed the values specified in Table 1.
Alloys by Atomic Emission Plasma Spectrometry
Measurement shall be in accordance with Test Method E10,
using a 0.394 in. (10-mm) ball, 3307-lbf (1500-kgf) load, and
3. Terminology
30-s dwell.
3.1 Lot Definitions:
3.1.1 sponge, n—a lot shall consist of a single blend
7. Sampling
produced at one time.
7.1 The sampling method used shall be a matter of agree-
ment between the manufacturer and the purchaser. The follow-
4. Materials and Manufacture
ing are acceptable industrial practices:
4.1 Sponge titanium is usually prepared by reduction of
7.1.1 The blend shall be sampled as required in 7.1.2 and
titanium tetrachloride and gets its spongelike character from
7.1.3 unless otherwise agreed upon between the manufacturer
and the purchaser.
1
This specification is under the jurisdiction of ASTM Committee B10 on
7.1.2 Thesamplefordeterminingtheconformanceofthelot
Reactive and Refractory Metals and Alloysand is the direct responsibility of
to the chemical and physical requirements shall be obtained by
Subcommittee B10.01 on Titanium.
sampling the lot to produce a 0.25 % sample but not less than
Current edition approved Nov. 1, 2008. Published December 2008. Originally
30 lb (14 kg) providing the lot is crushed to a particle size of
approved in 1955. Last previous edition approved in 2007 as B299 - 07. DOI:
10.1520/B0299-08.
1 in. (25.4 mm) or less in size. The blended evaluation sample
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
shall be split to produce two or more samples 0.1 lb (45 g) or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
moreeach,tobemeltedintobuttons,andonesampleofatleast
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 0.5 lb (227 g).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B299−08
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 .
...
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:B299–07 Designation: B 299 – 08
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 (´) 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.
1.2The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
1.2 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E 10 Test Method for Brinell Hardness of Metallic Materials
E 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 sponge, n—a lot shall consist of a single blend produced at one time.
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.
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
6.1The Brinell Hardness of a lot shall be the average of the hardness determinations on each button prepared as described in
6.1 Brinell hardness testing is optional unless requested by the purchaser. The Brinell Hardness of a lot shall be the average of
the hardness determinations on each button prepared as described in 5.1. The average hardness of each button for the lot shall not
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. 1, 2007.2008. Published November 2007.December 2008. Originally approved in 1955. Last previous edition approved in 20012007 as
B 299 - 017.
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 ----------------------
B299–08
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 0.20 0.20 0.12
Iron, max 0.15 0.05 0.05 0.15 0.12
Silicon, max 0.04 0.04 0.04 0.04 0.04
Hydrogen, max 0.03 0.02 0.05 0.03 0.010
Water, max 0.02 0.02 0.02 0.02 0.02
Oxygen, max 0.15 0.08 0.10 0.10 0.10
G
Chromium, max . . . . 0.06
G
Nickel, max . . . . 0.05
All other impurities (total), max 0.05 0.05 0.05 0.05 0.05
Titani
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.