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ASTM B595-95e1

(Specification)

Standard Specification for Sintered Aluminum Structural Parts

Standard Specification for Sintered Aluminum Structural Parts

SCOPE
1.1 This specification covers sintered aluminum structural parts made primarily from aluminum powders to which controlled amounts of master alloys or elemental copper, magnesium, and silicon have been added by blending.
1.2 This specification covers the following variables:
1.2.1 Composition— Depending upon levels of copper, magnesium, and silicon content, two grades, and
1.2.2 Density—Type.
1.3 Parts ordered to this specification will be in one of the following conditions:
1.3.1 As-sintered,
1.3.2 As-repressed for additional density, or
1.3.3 All other conditions plus heat treated.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

Status
Historical
Publication Date
09-Oct-1995
Technical Committee
B09 - Metal Powders and Metal Powder Products
Drafting Committee
B09.05 - Structural Parts
Current Stage
Ref Project

Relations

Replaced By
ASTM B595-95(2000) - Standard Specification for Sintered Aluminum Structural Parts
Effective Date
10-Oct-1995
Referred By
ASTM B925-15(2022) - Standard Practices for Production and Preparation of Powder Metallurgy (PM) Test Specimens
Effective Date
10-Oct-1995

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ASTM B595-95e1 - Standard Specification for Sintered Aluminum Structural PartsASTM B595-95e1 - Standard Specification for Sintered Aluminum Structural Parts
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ASTM B595-95e1 - Standard Specification for Sintered Aluminum Structural Parts
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: B 595 – 95
Standard Specification for
Sintered Aluminum Structural Parts
This standard is issued under the fixed designation B 595; 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.
e NOTE—Footnote 1 was corrected editorially in March 1996.
1. Scope 4.1.1 Dimensions (see 9.1),
4.1.2 Chemical composition (see 6.1),
1.1 This specification covers sintered aluminum structural
4.1.3 Density (see 7.1),
parts made primarily from aluminum powders to which con-
4.1.4 State of heat treatment,
trolled amounts of master alloys or elemental copper, magne-
4.1.5 Mechanical property requirements (see 8.1), and
sium, and silicon have been added by blending.
4.1.6 Certification (see 14.1).
1.2 This specification covers the following variables:
1.2.1 Composition—Depending upon levels of copper, mag-
5. Materials and Manufacture
nesium, and silicon content, two grades, and
5.1 Structural parts shall be made by molding and sintering
1.2.2 Density—Type.
metal powders to produce finished parts conforming to the
1.3 Parts ordered to this specification will be in one of the
requirements of this specification.
following conditions:
1.3.1 As-sintered,
6. Chemical Composition
1.3.2 As-repressed for additional density, or
6.1 The material shall conform to the requirements of Table
1.3.3 All other conditions plus heat treated.
1.
1.4 The values stated in SI units are to be regarded as the
6.2 The chemical analysis shall be made in accordance with
standard. The values given in parentheses are for information
the methods prescribed in the latest edition of the Annual Book
only.
of ASTM Standards, Vol 03.05, or any other approved method
agreed upon between the manufacturer and the purchaser.
2. Referenced Documents
2.1 ASTM Standards:
7. Density
B 243 Terminology of Powder Metallurgy
7.1 The parts shall conform to the density range prescribed
B 328 Test Method for Density and Interconnected Porosity
in Table 2.
of Sintered Powder Metal Structural Parts and Oil-
7.2 The density shall be measured in accordance with Test
Impregnated Bearings
3 Method B 328.
E 8 Test Methods for Tension Testing of Metallic Materials
7.3 If the density does not vary more than 0.1 g/cm from
one section of the structural part to any other section, the
3. Terminology
overall density shall fall within the limits prescribed in Table 2.
3.1 Definitions—Definitions of powder metallurgy terms
7.4 If the density varies more than 0.1 g/cm from one
can be found in Terminology B 243. Additional descriptive
section of the structural part to any other section, the manu-
information is available in the Related Material Section of
facturer and the purchaser shall agree upon a critical section of
Volume 02.05 of the Annual Book of ASTM Standards.
the part where the stresses are the highest. The density of this
4. Ordering Information critical section rather than the average density shall fall within
the limits prescribed in Table 2.
4.1 Orders for material to this specification shall include the
following information:
8. Mechanical Properties
8.1 The manufacturer and the purchaser shall agree on
This specification is under the jurisdiction of ASTM Committee B-9 on Metal
qualification tests for the determination of mechanical proper-
Powders and Metal Powder Products and is the direct responsibility of Subcom-
ties.
mittee B09.05 on Structural Parts.
8.2 These tests shall be performed on production parts.
Current edition approved Feb. 21, 1996. Published April 1996. Originally
published as B 595 – 73. Last previous edition B 595 – 95. Discontinued June 1991
8.3 These tests shall be determined after consideration of
and reinstated as B 595 – 95.
the function of the part.
Annual Book of ASTM Standards, Vol 02.05.
3 8.4 The limits and sampling plan shall be agreed upon
Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 595
TABLE 1 Chemical Requirements
11.2 Chemical Analysis—If required by purchase agree-
Composition, % ment, at least one sample for chemical analysis shall be taken
Element
A A
from each lot. A representative sample of chips may be
AXX-6061 ACXX-2014
obtained by dry milling, drilling or crushing at least two pieces
Copper 0.5 max 3.5–5.0
Magnesium 0.4–1.2 0.2–0.8 with clean dry tools without lubrication. In order to obtain
Silicon 0.2–0.8 1.2 max
oil-free chips, the parts selected for test shall have the oil
Aluminum, min 96.0 91.5
extracted in accordance with Test Method B 328, if necessary.
Total of other elements, 1.5 1.5
determined by difference, 11.3 Mechanical Tests—The manufacturer and purchaser
max
shall agree on a representative number of specimens for
A
An “XX” denotes position of thermal condition designation.
mechanical tests.
TABLE 2 Density 12. Inspection
Type Dry Density, g/cm
12.1 Unless otherwise specified, inspection of parts sup-
I 2.30 to 2.45 plied on contract shall be made by the purchaser.
II 2.45 to 2.60
III 2.60 min
13. Rejection and Rehearing
13.1 Parts that fail to conform to the requirements of this
specification
...

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FIG. 1 Bored Forgings
Note 1: Sensitivity multiplication factor such that a 10 % indication at the forging bore surface will be equivalent to a 1/8 in. [3 mm] diameter flat bottom hole. Inspection frequency: 2.0 MHz or 2.25 MHz. Material velocity: 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s].
FIG. 2 Solid Forgings
Note 1: Sensitivity multiplication factor such that a 10 % indication at the forging centerline surface will be equivalent to a 1/8 in. [3 mm] diameter flat bottom hole. Inspection frequency: 2.0 MHz or 2.25 MHz. Material velocity: 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s].
FIG. 3 Conversion Factors to Be Used in Conjunction with Fig. 1 and Fig. 2 if a Change in the Reference Reflector Diameter is Required
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