ASTM B386-91(1997)

Standard Specification for Molybdenum and Molybdenum Alloy Plate, Sheet, Strip, and Foil

SCOPE
1.1 This specification covers unalloyed molybdenum and molybdenum alloy plate, sheet, strip, and foil as follows:
1.1.1 Molybdenum 360 -Unalloyed vacuum arc-cast molybdenum.
1.1.2 Molybdenum 361 -Unalloyed powder metallurgy molybdenum.
1.1.3 Molybdenum Alloy 363 -Vacuum arc-cast molybdenum-0.5% titanium-0.1% zirconium (TZM) alloy.
1.1.4 Molybdenum Alloy 364 -Powder metallurgy molybdenum-0.5% titanium-0.1% zirconium (TZM) alloy.
1.1.5 Molybdenum 365 -Unalloyed vacuum arc-cast molybdenum, low carbon.
1.1.6 Molybdenum Alloy 366 -Vacuum arc-cast molybdenum-30% tungsten alloy.
1.2 The values stated in inch-pound units are to be regarded as the standard.

General Information

• Status: Historical
• Publication Date: 09-Oct-1997
• ICS: 77.150.99 - Other products of non-ferrous metals
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.04 - Molybdenum and Tungsten

Relations

• Replaced By: ASTM B386-03 - Standard Specification for Molybdenum and Molybdenum Alloy Plate, Sheet, Strip, and Foil
• Effective Date: 01-Nov-2003

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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.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 386 – 91 (Reapproved 1997)
Standard Specification for
Molybdenum and Molybdenum Alloy Plate,
Sheet, Strip, and Foil
This standard is issued under the fixed designation B 386; 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.
1. Scope 4.1.3 Chemical requirements (Table 2 and Table 3),
4.1.4 Mechanical requirements (Section 7 and Table 1),
1.1 This specification covers unalloyed molybdenum and
4.1.5 Softening temperature (Section 8),
molybdenum alloy plate, sheet, strip, and foil as follows:
4.1.6 Tolerances (Section 9, Table 4 and Fig. 1),
1.1.1 Molybdenum 360— Unalloyed vacuum arc-cast mo-
4.1.7 Workmanship and quality level requirements (Section
lybdenum.
10),
1.1.2 Molybdenum 361— Unalloyed powder metallurgy
4.1.8 Packaging (Section 16),
molybdenum.
4.1.9 Marking (Section 15),
1.1.3 Molybdenum Alloy 363—Vacuum arc-cast
4.1.10 Certification and reports (Section 14), and
molybdenum-0.5 % titanium-0.1 % zirconium (TZM) alloy.
4.1.11 Disposition of rejected material (Section 13).
1.1.4 Molybdenum Alloy 364—Powder metallurgy
molybdenum-0.5 % titanium-0.1 % zirconium (TZM) alloy.
5. Materials and Manufacture
1.1.5 Molybdenum 365— Unalloyed vacuum arc-cast mo-
5.1 The various molybdenum mill products covered by this
lybdenum, low carbon.
specification shall be formed with the conventional extrusion,
1.1.6 Molybdenum Alloy 366—Vacuum arc-cast
forging, or rolling equipment normally found in primary
molybdenum-30 % tungsten alloy.
ferrous and nonferrous plants. The ingot metal for Molybde-
1.2 The values stated in inch-pound units are to be regarded
num 360 and 365 and Molybdenum Alloys 363 and 366 is
as the standard.
vacuum arc-melted in furnaces of a type suitable for reactive,
2. Referenced Documents refractory metals and for Molybdenum 361 and Molybdenum
Alloy 364, the metal is consolidated by powder metallurgy
2.1 ASTM Standards:
methods.
E 8 Test Methods for Tension Testing of Metallic Materials
E 345 Test Methods for Tension Testing of Metallic Foil
6. Chemical Composition
3. Descriptions of Terms Specific to This Standard 6.1 The molybdenum and molybdenum alloy ingots and
3 billets for conversion to finished products covered by this
3.1 Plate—Any product ⁄16 in. or more in thickness.
specification shall conform to the requirements of the chemical
3.2 Sheet—Any product 0.187 in. (4.75 mm) or less in
composition prescribed in Table 2.
thickness, to a minimum of 0.005 in. (0.13 mm) in thickness.
6.2 Check Analysis:
3.3 Strip—Any product 0.187 in. (4.75 mm) or less in
6.2.1 Check analysis is an analysis made by the purchaser or
thickness and less than 5 in. (127 mm) in width.
the manufacturer of the metal after it has been processed into
3.4 Foil—Any product less than 0.005 in. (0.13 mm) in
finished mill forms, and is either for the purpose of verifying
thickness.
the composition of a heat or lot or to determine variations in the
4. Ordering Information
composition within a heat or lot.
6.2.2 Check analysis tolerances do not broaden the specified
4.1 Orders for material under this specification shall include
heat analysis requirements but cover variations between labo-
the following information as applicable:
ratories in the measurement of chemical content.
4.1.1 Material number and temper designation (Section 1
6.2.3 The manufacturer shall not ship material that is
and Table 1),
outside the limits specified in Table 2 for the applicable type,
4.1.2 Product form (Section 3),
with the exception of oxygen and nitrogen, whose percentage
may vary with the method of fabrication.
This specification is under the jurisdiction of ASTM Committee B-10 on
6.2.4 Check analysis limits shall be as specified in Table 3.
Reactive and Refractory Metals and Alloysand is the direct responsibility of
Subcommittee B10.04on Molybdenum and Tungsten.
7. Mechanical Properties
Current edition approved March 26, 1991. Published May 1991. Originally
e1
published as B 386 – 62 T. Last previous edition B 386 – 85 .
7.1 Material supplied under this specification shall conform
Annual Book of ASTM Standards, Vol 03.01.
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 386
TABLE 1 Mechanical Requirements
Yield Elonga-
B
Tensile
Strength tion in 2 Minimum
Temper Strength,
Type Thickness, in. (mm) 0.2 % Offset, in. or 50 Bend Ra-
A
Condition min, ksi
min, mm, min, dius
(MPa)
ksi (MPa) %
360, 361 SR to 0.001 (0.025) 115 (795) 95 (655) 1 .
365 over 0.001 to 0.002 (0.025 to 0.05) 115 (795) 95 (655) 2 .
over 0.002 to 0.003 (0.05 to 0.075) 115 (795) 95 (655) 3 .
over 0.003 to 0.004 (0.075 to 0.1) 115 (795) 95 (655) 4 .
C
0.005 to 0.010 (0.13 to 0.25) 110 (760) 90 (620) 5 2t
over 0.010 to 0.020 (0.25 to 0.5) 110 (760) 90 (620) 6 2t
over 0.020 to 0.060 (0.5 to 1.5) 105 (725) 85 (585) 10 2t
over 0.060 to 0.100 (1.5 to 2.5) 100 (690) 80 (550) 14 2t
over 0.100 to 0.187 (2.5 to 4.75) 100 (690) 80 (550) 18 2t
3 1
⁄16to ⁄2 (4.75 to 12.7) 100 (690) 80 (550) 10 .
D
over ⁄2 to 1 (12.7 to 25.4) 95 (655) 80 (550) 2 .
D
over1to1 ⁄2 (25.4 to 38) 95 (655) 80 (550) 1 .
363, 364 SR 0.010 to 0.025 (0.25 to 0.635) 120 (830) 100 (690) 6 2t
over 0.025 to 0.060 (0.635 to 1.5) 120 (830) 100 (690) 7 2t
over 0.060 to 0.090 (1.5 to 2.3) 120 (830) 100 (690) 9 .
over 0.090 to 0.187 (2.3 to 4.75) 120 (830) 100 (690) 10 .
3 1
⁄16 to ⁄2 (4.75 to 12.7) 120 (830) 100 (690) 10 .
over ⁄2 to 1 (12.7 to 25.4) 110 (760) 95 (655) 10 .
over1to1 ⁄2 (25.4 to 38) 100 (690) 85 (585) 8 .
3 1
360 RX ⁄16 to 1 ⁄2 (4.75 to 38) 55 (380) 25 (170) 20 .
3 1
363, 364 RX ⁄16 to 1 ⁄2(4.75 to 38) 75 (515) 45 (310) 10 .
A
SR 5 stress-relieved. RX 5 essentially fully recrystallized.
B
Both longitudinal and transverse tests between 65 and 85°F (18 and 29°C).
C
Material thickness 5 t.
D
Transverse elongation variable due to cross rolling limitations.
TABLE 2 Chemical Requirements
Composition,%
Element Material Number
360 361 363 364 365 366
C 0.030 max 0.010 max 0.010–0.030 0.010–0.040 0.010 max 0.030 max
A
O, max 0.0015 0.0070 0.0030 0.030 0.0015 0.0025
A
N, max 0.002 0.002 0.002 0.002 0.002 0.002
Fe, max 0.010 0.010 0.010 0.010 0.010 0.010
Ni, max 0.002 0.005 0.002 0.005 0.002 0.002
Si, max 0.010 0.010 0.010 0.005 0.010 0.010
Ti . . 0.40–0.55 0.40–0.55 . .
W . . . . . 27–33
Zr . . 0.06–0.12 0.06–0.12 . .
Mo balance balance balance balance balance balance
A
Pending approved methods of analysis, deviations from these limits alone shall not be cause for rejection.
TABLE 3 Permissible Variations in Check Analysis
to the mechanical property requirements given in Table 1,
Check Analy- Permissible Vari-
when tested in the transverse direction to final working at test Material No. sis Limits, ations in Check
max or range, % Analysis, %
temperatures between 65 and 85°F (18 and 29°C).
C 360, 363, 364, 366, 0.010–0.040 60.005
7.2 Tension test specimens shall be prepared and tested in
361, 365 0.010 60.002
accordance with Test Methods E 8 or E 345 for foil. Tensile A
O 361 0.0070 +10 % relative
360, 363, 365, 366 0.0030 +10 % relative
properties shall be determined using a strain rate of 0.002 to
364 0.030 +10 % relative
0.005 in./in.·min (or mm/mm·min) through 0.6 % offset and
A
N 361
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