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ASTM B 848 Document Information:
Title
Standard Specification for Powder Forged (P/F) Ferrous Materials
ASTM International
Publication Date:
Oct 1, 2005
Scope:
(Footnote *)
This specification covers powder forged ferrous materials fabricated
by hot densification of
atomized prealloyed or iron powders and intended for use as structural
parts.
This specification covers powder forged parts made from the following
materials:
Compositions:
P/F-10XX Carbon Steel (produced from atomized iron powder and graphite
powder),
P/F-10CXX Copper-Carbon Steel (produced from atomized iron powder,
copper and graphite powders),
P/F-11XX Carbon Steel with manganese sulfide for enhanced
machinability (produced from atomized
iron powder, manganese sulfide, and graphite powders),
P/F-11CXX Copper-Carbon Steel with manganese sulfide for enhanced
machinability (produced from
atomized iron powder, copper, manganese sulfide, and graphite
powders),
P/F-42XX Nickel-Molybdenum Steel (produced from prealloyed atomized
iron-nickel-molybdenum powder
and graphite powder),
P/F-46XX Nickel-Molybdenum Steel (produced from prealloyed atomized
iron-nickel-molybdenum powder
and graphite powder),
P/F-44XX Molybdenum Steel (produced from pre-alloyed atomized
iron-molybdenum powder and graphite
powder), and
P/F-49XX Molybdenum Steel (produced from pre-alloyed atomized
iron-molybdenum powder and graphite
powder).
NOTE 1 - Alloy composition designations are modifications of the
AISI-SAE nomenclature. For
example: 10CXX designates a plain carbon steel containing copper and
XX amount of carbon.
Compositional limits of alloy and impurity elements may be different
from the AISI-SAE limits.
Chemical composition limits are specified in Section 6.
NOTE 2 - XX designates the forged carbon content, in hundredths of a
percent, that is specified by
the purchaser for the application. For a given specified carbon
content, the permissible limits
shall be as specified in 6.2.
Grades:
Grade A - Density equivalent to a maximum of 0.5 % porosity. The
minimum density of those sections
of the powder forged part so designated by the applicable part drawing
shall not be less than the
value specified in Table 1.
Grade B - Density equivalent to a maximum of 1.5 % porosity. The
minimum density of those sections
of the powder forged part so designated by the applicable part drawing
shall not be less than the
value specified in Table 1.
Property values stated in inch-pound units are the standard.
Conversion factors to SI units may be
approximate.
Footnote * - A Summary of Changes section appears at the end of this
standard.
Keywords:
- powder forged (P/F) parts
- powder forged (P/F) steels
- powder forging (P/F)
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