ASTM B108-99

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Designation: B 108 – 99
Standard Specification for
Aluminum-Alloy Permanent Mold Castings
This standard is issued under the fixed designation B 108; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E 94 Guide for Radiographic Testing
E 155 Reference Radiographs for Examination of Alumi-
1.1 This specification covers aluminum-alloy permanent
num and Magnesium Castings
mold castings designated as shown in Table 1.
E 165 Test Method for Liquid Penetrant Examination
1.2 Alloy and temper designations are in accordance with
E 227 Test Method for Optical Emission Spectrometric
ANSI H35.1. The equivalent unified numbering system alloy
Analysis of Aluminum and Aluminum Alloys by the
designations are in accordance with Practice E 527.
Point-to-Plane Technique
1.3 For acceptance criteria for inclusion of new aluminum
E 527 Practice for Numbering Metals and Alloys (UNS)
and aluminum alloys and their properties in this specification,
E 607 Test Method for Optical Emission Spectrometric
see Annex A1 and Annex A2.
Analysis of Aluminum and Aluminum Alloys by the
1.4 The values stated in inch-pound units are to be regarded
Point-to-Plane Technique, Nitrogen Atmosphere
as the standard. The values given in parentheses are for
E 716 Practices for Sampling Aluminum and Aluminum
information only.
Alloys for Spectrochemical Analysis
2. Referenced Documents
E 1251 Test Method for Optical Emission Spectrometric
Analysis of Aluminum and Aluminum Alloys by the Argon
2.1 The following documents of the issue in effect on the
Atmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-
date of casting purchase form a part of this specification to the
pacitor Discharge
extent referenced herein:
2.3 ANSI Standard:
2.2 ASTM Standards:
H35.1 Alloy and Temper Designation Systems for Alumi-
B 179 Specification for Aluminum Alloys in Ingot Form for
num
Castings from all Casting Processes
2.4 Military Standards:
B 275 Practice for Codification of Certain Nonferrous Met-
MIL-STD-129 Marking for Shipment and Storage
als and Alloys, Cast and Wrought
MIL-STD-276 Impregnation of Porous Nonferrous Metal
B 557 Test Methods for Tension Testing Wrought and Cast
Castings
Aluminum- and Magnesium-Alloy Products
MIL-STD-278 Welding and Allied Processes for Machinery
B 597 Practice for Heat Treatment of Aluminum Alloys
for Ships
B 660 Practices for Packaging/Packing of Aluminum and
MIL-I-13857 Impregnation of Metal Castings
Magnesium Products
2.5 Federal Standard:
E 29 Practice for Using Significant Digits in Test Data to
Fed Std. No. 123 Marking for Shipment (Civil Agencies)
Determine Conformance with Specifications
E 34 Test Methods for Chemical Analysis of Aluminum and
3. Terminology
Aluminum-Base Alloys
3.1 Definitions:
E 88 Practice for Sampling Nonferrous Metals and Alloys
5 3.1.1 permanent mold casting—a metal object produced by
in Cast Form for Determination of Chemical Composition
introducing molten metal by gravity or low pressure into a
mold constructed of durable material, usually iron or steel, and
allowing it to solidify.
This specification is under the jurisdiction of ASTM Committee B07 on Light
Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on
Aluminum Alloy Ingots and Castings. Annual Book of ASTM Standards, Vol 03.03.
Current edition approved May 10, 1999. Published July 1999. Originally Annual Book of ASTM Standards, Vol 01.01.
published as B 108 – 36 T. Last previous edition B 108 – 98. Annual Book of ASTM Standards, Vol 03.06.
2 9
For ASME Boiler and Pressure Code application see related SB-108. Available from American National Standards Institute, 11 W. 42nd St., 13th
Annual Book of ASTM Standards, Vol 02.02. Floor, NY 10036.
4 10
Annual Book of ASTM Standards, Vol 14.02. Available from Standardization Documents Order Desk, Bldg. 4, Section D,
Annual Book of ASTM Standards, Vol 03.05. 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
B 108
A,B ,C
TABLE 1 Chemical Composition Limits
Alloy Composition, %
Other
E
Manga- Magne-
D Elements
ANSI UNS Aluminum Silicon Iron Copper Chromium Nickel Zinc Tin Titanium
nese sium
F
Each Total
204.0 A02040 remainder 0.20 0.35 4.2–5.0 0.10 0.15–0.35 . 0.05 0.10 0.05 0.15–0.30 0.05 0.15
208.0 A02080 remainder 2.5–3.5 1.2 3.5–4.5 0.50 0.10 . 0.35 1.0 . 0.25 . 0.50
213.0 A02130 remainder 1.0–3.0 1.2 6.0–8.0 0.6 0.10 . 0.35 2.5 . 0.25 . 0.50
222.0 A02220 remainder 2.0 1.5 9.2–10.7 0.50 0.15–0.35 . 0.50 0.8 . 0.25 . 0.35
242.0 A02420 remainder 0.7 1.0 3.5–4.5 0.35 1.2–1.8 0.25 1.7–2.3 0.35 . 0.25 0.05 0.15
296.0 remainder 2.0–3.0 1.2 4.0–5.0 0.35 0.05 . 0.35 0.50 . 0.25 . 0.35
308.0 remainder 5.0–6.0 1.0 4.0–5.0 0.50 0.10 . . 1.0 . 0.25 . 0.50
319.0 A03190 remainder 5.5–6.5 1.0 3.0–4.0 0.50 0.10 . 0.35 1.0 . 0.25 . 0.50
G
332.0 A03320 remainder 8.5–10.5 1.2 2.0–4.0 0.50 0.50–1.5 . 0.50 1.0 . 0.25 . 0.50
333.0 A03330 remainder 8.0–10.0 1.0 3.0–4.0 0.50 0.05–0.50 . 0.50 1.0 . 0.25 . 0.50
G
336.0 A03360 remainder 11.0–13.0 1.2 0.50–1.5 0.35 0.7–1.3 . 2.0–3.0 0.35 . 0.25 0.05 .
354.0 A03540 remainder 8.6–9.4 0.20 1.6–2.0 0.10 0.40–0.6 . . 0.10 . 0.20 0.05 0.15
H H
355.0 A03550 remainder 4.5–5.5 0.6 1.0–1.5 0.50 0.40–0.6 0.25 . 0.35 . 0.25 0.05 0.15
C355.0 A33550 remainder 4.5–5.5 0.20 1.0–1.5 0.10 0.40–0.6 . . 0.10 . 0.20 0.05 0.15
H H
356.0 A03560 remainder 6.5–7.5 0.6 0.25 0.35 0.20–0.45 . . 0.35 . 0.25 0.05 0.15
A356.0 A13560 remainder 6.5–7.5 0.20 0.20 0.10 0.25–0.45 . . 0.10 . 0.20 0.05 0.15
357.0 remainder 6.5–7.5 0.15 0.05 0.03 0.45–0.6 . . 0.05 . 0.20 0.05 0.15
I
A357.0 A13570 remainder 6.5–7.5 0.20 0.20 0.10 0.40–0.7 . . 0.10 . 0.04–0.20 0.05 0.15
359.0 A03590 remainder 8.5–9.5 0.20 0.20 0.10 0.50–0.7 . . 0.10 . 0.20 0.05 0.15
443.0 A04430 remainder 4.5–6.0 0.8 0.6 0.50 0.05 0.25 . 0.50 . 0.25 . 0.35
B443.0 A24430 remainder 4.5–6.0 0.8 0.15 0.35 0.05 . . 0.35 . 0.25 0.05 0.15
A444.0 A14440 remainder 6.5–7.5 0.20 0.10 0.10 0.05 . . 0.10 . 0.20 0.05 0.15
G
513.0 A05130 remainder 0.30 0.40 0.10 0.30 3.5–4.5 . . 1.4–2.2 . 0.20 0.05 0.15
J
535.0 A05350 remainder 0.15 0.15 0.05 0.10–0.25 6.2–7.5 . . . . 0.10–0.25 0.05 0.15
705.0 A07050 remainder 0.20 0.8 0.20 0.40–0.6 1.4–1.8 0.20–0.40 . 2.7–3.3 . 0.25 0.05 0.15
707.0 A07070 remainder 0.20 0.8 0.20 0.40–0.6 1.8–2.4 0.20–0.40 . 4.0–4.5 . 0.25 0.05 0.15
G
711.0 A07110 remainder 0.30 0.7–1.4 0.35–0.65 0.05 0.25–0.45 . . 6.0–7.0 . 0.20 0.05 0.15
713.0 A07130 remainder 0.25 1.1 0.40–1.0 0.6 0.20–0.50 0.35 0.15 7.0–8.0 . 0.25 0.10 0.25
850.0 A08500 remainder 0.7 0.7 0.7–1.3 0.10 0.10 . 0.7–1.3 . 5.5–7.0 0.20 . 0.30
G
851.0 A08510 remainder 2.0–3.0 0.7 0.7–1.3 0.10 0.10 . 0.3–0.7 . 5.5–7.0 0.20 . 0.30
G
852.0 A08520 remainder 0.40 0.7 1.7–2.3 0.10 0.6–0.9 . 0.9–1.5 . 5.5–7.0 0.20 . 0.30
A
When single units are shown, these indicate the maximum amounts permitted.
B
Analysis shall be made for the elements for which limits are shown in this table.
C
The following applies to all specified limits in this table: For purposes of determining conformance to these limits, an observed value or a calculated value obtained
from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limit in accordance with the rounding method of
Practice E 29.
D
ASTM alloy designations are recorded in Practice B 275.
E
Others includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not
specified in the specification. However, such analysis is not required and may not cover all metallic Others elements. Should any analysis by the producer or the purchaser
establish that an Others element exceeds the limit of Each or that the aggregate of several Others elements exceeds the limit of Total, the material shall be considered
nonconforming.
F
Other Elements—Total shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.
G
336.0 formerly A332.0, 332.0 formerly F332.0, 513.0 formerly A514.0, 711.0 formerly C712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.
H
If the iron content exceeds 0.45 %, manganese content shall not be less than one half of the iron.
I
Beryllium 0.04–0.07.
J
Beryllium 0.003–0.007, boron 0.005 max.
3.1.2 semi-permanent mold casting—a permanent mold artificially aged for Alloys 705.0-T5, 707.0-T5, and 713.0-T5
casting which is made using an expendable core such as sand. (see 11.3),
4.2.3 Whether test specimens cut from castings are required
4. Ordering Information
in addition to or instead of separately cast specimens (see
4.1 Orders for material under this specification shall include
Sections 11 and 15, and 13.2),
the following information:
4.2.4 Whether repairs are permissible (see Section 18),
4.1.1 This specification designation (which includes the
4.2.5 Whether inspection is required at the producer’s
number, the year, and the revision letter, if applicable),
works (see Section 19),
4.1.2 Alloy (see Section 7 and Table 1),
4.2.6 Whether certification is required (see Section 23),
4.1.3 Temper (see Section 11 and Table 2),
4.2.7 Whether surface requirements will be checked visu-
4.1.4 Applicable drawing or part number,
ally or by observational standards where such standards are
4.1.5 The quantity in either pieces or pounds.
established (see 20.1),
4.2 Additionally, orders for material to this specification
4.2.8 Whether liquid penetrant inspection is required (see
shall include the following information when required by the
20.2),
purchaser.
4.2.9 Whether radiographic inspection is required (see
4.2.1 Whether yield strength tests are required (see 11.1 and
20.3), and
Table 2, Footnote F),
4.2.2 Whether castings or test bars, or both, are to be 4.2.10 Whether foundry control is required (see 10.2).
B 108
4.2.11 Whether the material shall be packaged, or marked,
or both, in accordance with Practices B 660, MIL-STD-129,
and Fed. Std. No. 123 (see 24.4).
A,B
TABLE 2 Tensile Requirements
D
Yield Strength Typical Brinell
Alloy
Tensile Elongation in
F
(0.2 % offset), Hardness
C
Temper Strength, min, 2 in. or 4 3
min, ksi 500-kgf load,
E
G
ksi (MPa) Diameter, min, %
ANSI UNS
E
(MPa) 10-mm ball
204.0 A02040 T4 separately cast specimens 48.0 (331) 29.0 (200) 8.0 .
208.0 A02080 T4 33.0 (228) 15.0 (103) 4.5 75
T6 35.0 (241) 22.0 (152) 2.0 90
T7 33.0 (228) 16.0 (110) 3.0 80
213.0 A02130 F 23.0 (159) . . .
H
222.0 A02220 T551 30.0 (207) . 115
H
T65 40.0 (276) . 140
H
242.0 A02420 T571 34.0 (234) . 105
H
T61 40.0 (276) . 110
319.0 A03190 F 27.0 (186) 14.0 (97) 2.5 95
I H
336.0 A03360 T551 31.0 (214) . 105
H
T65 40.0 (276) . 125
I H
332.0 A03320 T5 31.0 (214) . 105
H
333.0 A03330 F 28.0 (193) . 90
H
T5 30.0 (207) . 100
H
T6 35.0 (241) . 105
H
T7 31.0 (214) . 90
354.0 A03540 T61
separately cast specimens 48.0 (331) 37.0 (255) 3.0
J
casting, designated area 47.0 (324) 36.0 (248) 3.0
J
castings, no location designated 43.0 (297) 33.0 (228) 2.0
T62
separately cast specimens 52.0 (359) 42.0 (290) 2.0
J
castings, designated area 50.0 (344) 42.0 (290) 2.0
J
castings, no location designated 43.0 (297) 33.0 (228) 2.0
H
355.0 A03550 T51 27.0 (186) . 75
H
T62 42.0 (290) . 105
H
T7 36.0 (248) . 90
H
T71 34.0 (234) 27.0 (186) 80
C355.0 A33550 T61
separately cast specimens 40.0 (276) 30.0 (207) 3.0 85–90
J
castings, designated area 40.0 (276) 30.0 (207) 3.0
J
castings, no location designated 37.0 (255) 30.0 (207) 1.0 85
356.0 A03560 F 21.0 (145) 10.0 (69) 3.0
T6 33.0 (228) 22.0 (152) 3.0 85
T71 25.0 (172) . 3.0 70
A356.0 A13560 T61
separately cast specimens 38.0 (262) 26.0 (179) 5.0 80–90
J
castings, designated area 33.0 (228) 26.0 (179) 5.0
J
castings, no location designated 28.0 (193) 26.0 (179) 3.0
357.0 T6 45.0 (310) . 3.0 .
A357.0 A13570 T61
separately cast specimens 45.0 (310) 36.0 (248) 3.0 100
J
castings, designated area 46.0 (317) 36.0 (248) 3.0 .
J
castings, no location designated 41.0 (283) 31.0 (214) 3.0 .
359.0 A03590 T61
separately cast specimens 45.0 (310) 34.0 (234) 4.0 90
J
castings, designated area 45.0 (310) 34.0 (234) 4.0
J
castings, no location designated 40.0 (276) 30.0 (207) 3.0
T62
separately cast specimens 47.0 (324) 38.0 (262) 3.0 100
J
castings, designated area 47.0 (324) 38.0 (262) 3.0
J
castings, no location designated 40.0 (276) 30.0 (207) 3.0
443.0 A04430 F 21.0 (145) 7.0 (49) 2.0 45
B443.0 A24430 F 21.0 (145) 6.0 (41) 2.5 45
A444.0 A14440 T4
separately cast specimens 20.0 (138) . 20 .
E
castings, designated area 20.0 (138) . 20 .
I
513.0 A05130 F 22.0 (152) 12.0 (83) 2.5 60
535.0 A05350 F 35.0 (241) 18.0 (124) 8.0 .
705.0 A07050 T1 or T5 37.0 (255) 17.0 (117) 10.0
707.0 A07070 T1 42.0 (290) 25.0 (173) 4.0
T7 45.0 (310) 35.0 (241) 3.0
I
711.0 A07110 T1 28.0 (193) 18.0 (124) 7.0 70
713.0 A07130 T1 or T5 32.0 (221) 22.0 (152) 4.0
B 108
TABLE 2 Continued
D
Yield Strength Typical Brinell
Alloy
Tensile Elongation in
F
(0.2 % offset), Hardness
C
Temper Strength, min, 2 in. or 4 3
min, ksi 500-kgf load,
E
G
ksi (MPa) Diameter, min, %
ANSI UNS E
(MPa) 10-mm ball
850.0 A08500 T5 18.0 (124) . 8.0
I
851.0 A08510 T5 17.0 (117) . 3.0
T6 18.0 (124) . 8.0
I
852.0 A08520 T5 27.0 (186) . 3.0
A
If agreed upon by manufacturer and the purchaser, other mechanical properties may be obtained by other heat treatments such as annealing, aging, or stress relieving.
B
For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded off to the nearest 0.1 ksi, and each
value for elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding method of Practice E 29.
C
Temper designations:
F As fabricated.
O Annealed.
T1 Cooled from an elevated temperature shaping process and naturally aged to a substantially stable condition.
T4 Solution heat-treated and naturally aged to a substantially stable condition.
T5 Cooled from an elevated temperature shaping process and then artificially aged.
T6 Solution heat-treated and then artificially aged.
...