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ASTM B 817 Document Information:
Title
Standard Specification for Powder Metallurgy (P/M) Titanium Alloy Structural Components
ASTM International
Publication Date:
Jun 10, 2003
Scope:
This specification covers powder metallurgy (P/M) structural
components fabricated from
commercially pure (CP) titanium powder mixed with master alloy powder
and elemental powders in
appropriate quantity to yield combined material chemistries comparable
to ingot metallurgy (I/M)
alloys Titanium 6A1-4V and Titanium 6A1-6V-2Sn.
This specification covers the following materials:
Two types depending on alloy composition as detailed in Table 1.
Type I is comparable to I/M Ti-6A1-4V.
Type II is comparable to I/M Ti-6A1-6V-2Sn.
Two grades of each type that result from the specific titanium powder
used are as follows:
Grade 1 is made from sponge fines with residual levels of chlorine and
sodium.
Grade 2 is made from hydride/dehydride (HDH) or other process titanium
with significantly lower
chlorine and sodium content.
Two classes as a function of density (see Table 2) are as follows:
Class A density ratio is 94 % minimum.
Class B density ratio is 99 % minimum. (Warning - CP titanium powder
may be pyrophoric; its use may
involve an explosion hazard.)
The values stated in inch-pound units are to be regarded as the
standard. The SI units given in
parentheses are for information only.
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. Specific
precautionary statements are given in 1.2.3.2.
Keywords:
- compaction
- cold isostatic pressing (CIP)
- ELCL titanium
- HDH titanium powder
- hot isostatic pressing (HIP)
- powder metallurgy
- "sponge fines" titanium powder
- structural components
- Ti-6A1-4V
- Ti-6A1-6V-2Sn
- titanium
- titanium alloys
- vacuum sinter
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