ASTM B93/B93M-00

Standard Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings

SCOPE
1.1 This specification covers magnesium alloys in ingot form for remelting for the manufacture of sand castings, permanent mold castings, investment castings, and die castings.
Note 1--Supplementary information pertaining to the alloys covered by this specification when used in the form of castings is given in Specifications B80, B94, B199 and B403.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.

General Information

• Status: Historical
• Publication Date: 09-Dec-2000
• ICS: 77.150.20 - Magnesium products
• Technical Committee: B07 - Light Metals and Alloys
• Drafting Committee: B07.04 - Magnesium Alloy Cast and Wrought Products

Relations

• Replaced By: ASTM B93/B93M-03 - Standard Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings
• Effective Date: 10-Aug-2003
• Referred By: ASTM B199-17 - Standard Specification for Magnesium-Alloy Permanent Mold Castings
• Effective Date: 10-Dec-2000
• Referred By: ASTM D4054-23 - Standard Practice for Evaluation of New Aviation Turbine Fuels and Fuel Additives
• Effective Date: 10-Dec-2000
• Referred By: ASTM B80-23 - Standard Specification for Magnesium-Alloy Sand Castings
• Effective Date: 10-Dec-2000
• Referred By: ASTM B94-18 - Standard Specification for Magnesium-Alloy Die Castings
• Effective Date: 10-Dec-2000
• Referred By: ASTM B951-11(2018) - Standard Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and Wrought
• Effective Date: 10-Dec-2000
• Referred By: ASTM B881-17 - Standard Terminology Relating to Aluminum- and Magnesium-Alloy Products
• Effective Date: 10-Dec-2000

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 93/B 93M – 00
Standard Specification for
Magnesium Alloys in Ingot Form for Sand Castings,
Permanent Mold Castings, and Die Castings
This standard is issued under the fixed designation B 93/B 93M; 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 * seller. Some forms in commercial use are:
Approximate
1.1 This specification covers magnesium alloys in ingot
Approximate Size Length by Width
Form Weight,
by Height, in. (mm)
form for remelting for the manufacture of sand castings,
lb (kg)
3 3
permanent mold castings, investment castings, and die cast- Five-segment 23 by 2 ⁄4 by 1 ⁄4 (583 by 70 by 44) 5 (2.3)
Four-segment 28 by 4 ⁄2 by 4 (711 by 114 by 102) 20 (9.1)
ings.
1 5 5
Self- 26 ⁄2 by 6 ⁄8 by 2 ⁄8 (672 by 168 by 67) 25 (11.3)
Palletizing
NOTE 1—Supplementary information pertaining to the alloys covered
by this specification when used in the form of castings is given in
3.1.4 Inspection required at the manufacturer’s works (see
Specifications B 80, B 94, B 199 and B 403.
8.1).
1.2 The values stated in either inch-pound units or SI units
3.1.5 For inch-pound orders specify B93; for metric orders
are to be regarded separately as standard. The values stated in
specify B93M. Do not mix units.
each system are not exact equivalents; therefore, each system
4. Chemical Composition
shall be used independently of the other.
4.1 The ingots shall conform to the chemical composition
2. Referenced Documents
limits prescribed in Table 1 for sand cast alloys and permanent
2.1 The following documents of the issue in effect on date
mold-cast alloys and in Table 2 for die-cast alloys. Conform-
of order acceptance form a part of this specification to the
ance shall be determined by the manufacturer by analyzing
extent referenced herein:
samples taken at the time the ingots are poured or samples
2.2 ASTM Standards:
taken from the ingots. If the manufacturer has determined the
B 275 Practice for Codification of Certain Nonferrous Met-
chemical composition of the material during manufacture, he
als and Alloys, Cast and Wrought
shall not be required to sample and analyze the ingots.
E 29 Practice for Using Significant Digits in Test Data to
4.2 The alloys shall conform to the chemical composition
Determine Conformance with Specifications
requirements prescribed in Table 1 and Table 2 (Note 2 and
E 35 Test Methods for Chemical Analysis of Magnesium
Note 3).
and Magnesium Alloys
NOTE 2—Analysis shall regularly be made only for the elements
E 88 Practice for Sampling Nonferrous Metals and Alloys
specifically mentioned in the tables. If, however, the presence of other
in Cast Form for Determination of Chemical Composition
elements is suspected or indicated in the course of routine analysis, further
E 527 Practice for Numbering Metals and Alloys (UNS)
analysis shall be made to determine that the total of these other elements
is not in excess of the limits specified in the last column of the table.
3. Ordering Information
NOTE 3—The following applies to all specified limits in the tables: For
purposes of acceptance and rejection, an observed value or a calculated
3.1 Orders for ingot to this specification shall include the
value obtained from analysis shall be rounded off in accordance with the
following information:
rounding off method of Practice E 29 to the nearest unit in the last
3.1.1 Quantity in pounds (kilograms)
right-hand place of figures used in expressing the specified limit.
3.1.2 Alloy (Section 4 and Table 1 or Table 2), and
3.1.3 Form: as agreed upon between the purchaser and
5. Workmanship, Finish and Appearance
5.1 The ingots shall be uniform in quality and shall be
This specification is under the jurisdiction of ASTM Committee B07 on Light commercially free of slag or other foreign material.
Metals and Alloys and is the direct responsibility of Subcommittee B07.04 on
Magnesium Alloy Cast and Wrought Products.
6. Sampling for Chemical Analysis
Current edition approved Dec. 10, 2000. Published December 2000. Originally
6.1 Sufficient samples shall be taken by the manufacturer to
published as B 93–34. Last previous edition B 93/B 93M–98.
Annual Book of ASTM Standards, Vol 02.02.
ensure conformance to the chemical composition requirement
Annual Book of ASTM Standards, Vol 14.02.
of the alloy.
Annual Book of ASTM Standards, Vol 03.05.
5 6.1.1 Samples may be taken from the molten metal when the
Annual Book of ASTM Standards, Vol 01.01.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
B 93/B 93M
TABLE 1 Chemical Requirements for Alloy Ingot for Remelt to Sand, Permanent, Mold and Investment Castings—Composition %
Others Total
A
Alloy Mag- Alumi- Manga- Rare Zir- Silicon, Copper, Nickel, Iron,
UNS Zinc Thorium Silver each Others,
ASTM nesium num nese Earths conium max max max max
B B
max max
AM100A M10101 remainder 9.4–10.6 0.13–0.35 0.2 max . . . 0.20 0.08 0.010 . 0.30
AZ63A M11631 remainder 5.5–6.5 0.15–0.35 2.7–3.3 . . . 0.20 0.20 0.010 . 0.30
AZ81A M11811 remainder 7.2–8.0 0.15–0.35 0.5–0.9 . . . 0.20 0.08 0.010 . 0.30
AZ91C M11915 remainder 8.3–9.2 0.15–0.35 0.45–0.9 . . . 0.20 0.08 0.010 . 0.30
AZ91E M11918 remainder 8.3–9.2 0.17–0.50 0.45–0.9 . . . 0.20 0.015 0.0010 . 0.005 0.01 0.30
AZ92A M11921 remainder 8.5–9.5 0.13–0.35 1.7–2.3 . . . 0.20 0.20 0.010 . 0.30
C
EQ21A M18330 remainder . . . . 1.5–3.0 0.3–1.0 0.01 0.05–0.10 0.01 1.3–1.7 0.30
EZ33A M12331 remainder . . 2.0–3.0 . 2.6–3.9 0.3–1.0 0.01 0.03 0.010 . 0.30
HK31A M13311 remainder . . 0.25 max 2.6–3.8 . 0.3–1.0 0.01 0.10 0.010 . 0.30
HZ32A M13321 remainder . . 1.8–2.4 2.6–3.8 0.10 max 0.3–1.0 0.01 0.03 0.010 . 0.30
K1A M18011 remainder . . . . . 0.3–1.0 0.01 0.03 0.010 . 0.30
C C
QE22A M18221 remainder . 0.15 max 0.2 max . 1.9 –2.4 0.3–1.0 0.01 0.03 0.010 2.0–3.0 0.30
D D C C
QH21A M18211 remainder . 0.15 max 0.2 max 0.6 –1.6 0.6 –1.5 0.3–1.0 0.01 0.03 0.010 2.0–3.0 0.30
EF G
WE43A M18430 remainder . 0.15 max 0.20 max . 2.4-4.4 0.3–1.0 0.01 0.03 0.005 . . . 0.30
EF G
WE54A M18410 remainder . 0.15 max 0.20 max . 1.5–4.0 0.3–1.0 0.01 0.03 0.005 . 0.30
ZC63A M16331 remainder . 0.25–0.75 5.5–6.5 . . . 0.20 2.4–3.00 0.001 . . . . 0.30
ZE41A M16411 remainder . 0.15 max 3.7–4.8 . 1.0–1.75 0.3–1.0 0.01 0.03 0.010 . 0.30
ZE63A M16631 remainder . . 5.5–6.0 . 2.0–3.0 0.3–1.0 0.01 0.03 0.010 . 0.30
ZH62A M16621 remainder . . 5.3–6.0 1.5–2.1 . 0.3–1.0 0.01 0.03 0.010 . 0.30
ZK51A M16511 remainder . . 3.8–5.3 . . 0.3–1.0 0.01 0.03 0.010 . 0.30
ZK61A M16611 remainder . . 5.7–6.3 . . 0.3–1.0 0.01 0.03 0.010 . 0.30
A
These alloy designations were established in accordance with Practice B 275. UNS designations were
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