ASTM B299-01

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Designation: B 299 – 01
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 4. Materials and Manufacture
1.1 This specification covers virgin titanium metal melting 4.1 Sponge titanium is usually prepared by reduction of
stock. This virgin metal is commonly designated as sponge titanium tetrachloride and gets its spongelike character from
titaniumbecauseitismostcommonlyporousandspongelikein the processes involved in production. This spongy character-
texture, although metal produced electrolytically is granular istic, however, is not considered essential and may be expected
and is essentially nonporous. to vary greatly with manufacturing methods. For example,
1.2 The values stated in inch-pound units are to be regarded virgin titanium produced electrolytically is crystalline or
as the standard. The values given in parentheses are for granular in character and is essentially nonporous.The metal is
information only. usually supplied in lump or granular form. This specification,
however, is not limited to metal prepared by reduction of the
2. Referenced Documents
tetrachloride.
2.1 ASTM Standards: 4.2 Only virgin titanium, free of scrap and intentionally
E 10 Test Method for Brinell Hardness of Metallic Materi-
added contaminants, shall be supplied under this specification.
2
als It shall be supplied in uniform, well-mixed blends, each of
E 120 Test Methods for ChemicalAnalysis of Titanium and
which shall be clearly designated.
3
Titanium Alloys
5. Chemical Composition
3. Terminology
5.1 The titanium metal supplied under this specification
3.1 Lot Definitions: shall conform to the chemical composition requirements pre-
3.1.1 castings—a lot shall consist of all castings produced
scribed in Table 1.
from the same pour.
6. Hardness
3.1.2 ingot—no definition required.
3.1.3 rounds, flats, tubes, and wrought powder metallurgical 6.1 The Brinell Hardness of a lot shall be the average of the
products (single definition, common to nuclear and non- hardness determinations on each button prepared as described
nuclear standards)—a lot shall consist of a material of the in Section 5. The average hardness of each button for the lot
same size, shape, condition, and finish produced from the same shall not exceed the values specified in Table 1. Measurement
ingot or powder blend by the same reduction schedule and the shall be in accordance withTest Method E 10, using a 0.394 in.
same heat treatment parameters. Unless otherwise agreed (10-mm) ball, 3307-lbf (1500-kgf) load, and 30-s dwell.
between manufacturer and purchaser, a lot shall be limited to
7. Sampling
the product of an 8 h period for final continuous anneal, or to
a single furnace load for final batch anneal. 7.1 The sampling method used shall be a matter of agree-
ment between the manufacturer and the purchaser. The follow-
3.1.4 sponge—a lot shall consist of a single blend produced
at one time. ing are acceptable industrial practices:
7.1.1 The blend shall be sampled as required in 7.1.2 and
3.1.5 weld fittings—definitions is to be mutually agreed
upon between manufacturer and the purchaser. 7.1.3 unless otherwise agreed upon between the manufacturer
and the purchaser.
7.1.2 Thesamplefordeterminingtheconformanceofthelot
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This specification is under the jurisdiction of ASTM Committee B10 on
to the chemical and physical requirements shall be obtained by
Reactive and Refractory Metals and Alloysand is the direct responsibility of
sampling the lot to produce a 0.25 % sample but not less than
Subcommittee B10.01on Titanium.
30 lb (14 kg) providing the lot is crushed to a particle size of
Current edition approved Nov. 10, 2001. Published January 2002. Originally
published as B 299 - 55 T. Last previous edition B 299 - 99.
1 in. (25.4 mm) or less in size. The blended evaluation sample
2
Annual Book of ASTM Standards, Vol 03.01.
3
Annual Book of ASTM Standards, Vol 03.05.
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B299–01
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
...