ASTM B247-20

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B247 − 15 B247 − 20
Standard Specification for
Aluminum and Aluminum-Alloy Die Forgings, Hand
Forgings, and Rolled Ring Forgings
This standard is issued under the fixed designation B247; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers aluminum-alloy (Note 1) die forgings, hand forgings, and rolled ring forgings as shown in Table
2, Table 3, and Table 4 in Section 10 for heat-treatable alloy forgings supplied in the F and 01 tempers. The maximum thicknesses
for forgings within the scope of this specification are as indicated in those tables.
NOTE 1—Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.
NOTE 2—For forging stock supplied as rolled or cold-finished bar rolled, cold-finished bar, extruded bar, or rod see Specification B211B211/B211M.
For forging stock supplied as extruded bar or rod see Specification B221.
1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System
alloy designations are those of Table 1 preceded by A9, for example, A91100 for aluminum 1100 in accordance with Practice E527.
1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.
1.4 This specification is the inch-pound companion to Specification B247M; therefore, no SI equivalents are presented in the
specification.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
2.2 ASTM Standards:
B211B211/B211M Specification for Aluminum and Aluminum-Alloy Rolled or Cold-Finished Cold Finished Bar, Rod, and Wire
(Metric) B0211_B0211M
B221 Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B594 Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products
B660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products
B918B918/B918M Practice for Heat Treatment of Wrought Aluminum Alloys
B985 Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for
Compositional Analysis
E10 Test Method for Brinell Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys (Withdrawn 2017)
This specification is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.03 on Aluminum
Alloy Wrought Products.
Current edition approved Oct. 1, 2015May 1, 2020. Published October 2015May 2020. Originally approved in 1950. Last previous edition approved in 20092015 as
B247 – 09.B247 – 15. DOI: 10.1520/B0247-15.10.1520/B0247-20.
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-247 in Section II of that Code.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B247 − 20
A,B,C,JD
TABLE 1 Chemical Composition Limits
Man-Man- Mag-Mag- Chro-Chro- Zir- DE Alumi-
Other Elements
Alloy Silicon Iron Copper Nickel Zinc Titanium
ganese nesium miummium conium num
EF
Each Total
F
1100 0.95 Si + Fe 0.05–0.20 0.05 . . . 0.10 . . 0.05 0.15 99.00 min
G
1100 0.95 Si + Fe 0.05–0.20 0.05 . . . 0.10 . . 0.05 0.15 99.00 min
G
2014 0.50–1.2 0.7 3.9–5.0 0.40–1.2 0.20–0.8 0.10 . 0.25 0.15 . 0.05 0.15 rem
H
2014 0.50–1.2 0.7 3.9–5.0 0.40–1.2 0.20–0.8 0.10 . 0.25 0.15 . 0.05 0.15 rem
2018 0.9 1.0 3.5–4.5 0.20 0.45–0.9 0.10 1.7–2.3 0.25 . . 0.05 0.15 rem
2025 0.50–1.2 1.0 3.9–5.0 0.40–1.2 0.05 0.10 . 0.25 0.15 . 0.05 0.15 rem
2218 0.9 1.0 3.5–4.5 0.20 1.2–1.8 0.10 1.7–2.3 0.25 . . 0.05 0.15 rem
H
2219 0.20 0.30 5.8–6.8 0.20–0.40 0.02 . . 0.10 0.02–0.10 0.10–0.25 0.05 0.15 rem
I
2219 0.20 0.30 5.8–6.8 0.20–0.40 0.02 . . 0.10 0.02–0.10 0.10–0.25 0.05 0.15 rem
2618 0.10–0.25 0.9–1.3 1.9–2.7 . 1.3–1.8 . 0.9–1.2 0.10 0.04–0.10 . 0.05 0.15 rem
3003 0.6 0.7 0.05–0.20 1.0–1.5 . . . 0.10 . . 0.05 0.15 rem
4032 11.0–13.5 1.0 0.50–1.3 . 0.8–1.3 0.10 0.50–1.3 0.25 . . 0.05 0.15 rem
5083 0.40 0.40 0.10 0.40–1.0 4.0–4.9 0.05–0.25 . 0.25 0.15 . 0.05 0.15 rem
6061 0.40–0.8 0.7 0.15–0.40 0.15 0.8–1.2 0.04–0.35 . 0.25 0.15 . 0.05 0.15 rem
6066 0.9–1.8 0.50 0.7–1.2 0.6–1.1 0.8–1.4 0.40 . 0.25 0.20 . 0.05 0.15 rem
6151 0.6–1.2 1.0 0.35 0.20 0.45–0.8 0.15–0.35 . 0.25 0.15 . 0.05 0.15 rem
7049 0.25 0.35 1.2–1.9 0.20 2.0–2.9 0.10–0.22 . 7.2–8.2 0.10 . 0.05 0.15 rem
7050 0.12 0.15 2.0–2.6 0.10 1.9–2.6 0.04 . 5.7–6.7 0.06 0.08–0.15 0.05 0.15 rem
I
7075 0.40 0.50 1.2–2.0 0.30 2.1–2.9 0.18–0.28 . 5.1–6.1 0.20 . 0.05 0.15 rem
J
7075 0.40 0.50 1.2–2.0 0.30 2.1–2.9 0.18–0.28 . 5.1–6.1 0.20 . 0.05 0.15 rem
7076 0.40 0.6 0.30–1.0 0.30–0.8 1.2–2.0 . . 7.0–8.0 0.20 . 0.05 0.15 rem
7175 0.15 0.20 1.2–2.0 0.10 2.1–2.9 0.18–0.28 . 5.1–6.1 0.10 . 0.05 0.15 rem
A
Limits are in weight percent maximum unless shown as a range or stated otherwise.
B
Analysis shall be made for the elements for which limits are shown in this table.
C
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-off method of Practice E29.
D
In case there is a discrepancy in the values listed in Table 1 with those listed in the “International Alloy Designations and Chemical Composition Limits for Wrought
Aluminum and Wrought Aluminum Alloys” (known as the “Teal Sheets”), the composition limits registered with the Aluminum Association and published in the “Teal Sheets”
shall be considered the controlling composition. The “Teal Sheets” are available at http://www.aluminum.org/tealsheets.
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
The aluminum content shall be calculated by subtracting from 100.00 % the sum of all metallic elements present in amounts of 0.010 % or more each, rounded to the
second decimal before determining the sum.
H
Upon agreement between purchaser and producer or supplier, a zirconium-plus-titanium limit of 0.20 % maximum is permitted.
I
Vanadium, 0.05–0.15 %. The total for other elements does not include Vanadium.
J
Upon agreement between purchaser and producer or supplier, a zirconium-plus-titanium limit of 0.25 % maximum is permitted.
J
In case there is a discrepancy in the values listed in Table 1 with those listed in the “International Alloy Designations and Chemical Composition Limits for Wrought
Aluminum and Wrought Aluminum Alloys” (known as the “Teal Sheets”), the composition limits registered with the Aluminum Association and published in the “Teal Sheets”
shall be considered the controlling composition. The “Teal Sheets” are available at http://www.aluminum.org/tealsheets.
E165E165/E165M Practice for Liquid Penetrant Testing for General Industry
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E607 Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen
Atmosphere (Withdrawn 2011)
E716 Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical
Composition by Spark Atomic Emission Spectrometry
E1004 Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy Current) Method
E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry
E3061 Test Method for Analysis of Aluminum and Aluminum Alloys by Inductively Coupled Plasma Atomic Emission
Spectrometry (Performance Based Method)
G47 Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products
2.3 ANSI Standard:
H35.1/H35.1(M) Alloy and Temper Designation Systems
2.4 Military Standards:Standard:
MIL-STD-129 Marking for Shipment and Storage (referenced in MIL-STD-649 and applies only to direct shipments to
Department of Defense agencies).
Available from Aluminum Association, Inc., 1400 Crystal Dr. Blvd., Suite 430, Arlington, VA 22202, http://www.aluminum.org.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA
19111-5098, http://www.dodssp.daps.mil.19111-5094, http://quicksearch.dla.mil.
B247 − 20
A,B
TABLE 2 Mechanical Property Limits for Die Forgings
Specimen Axis Specimen Axis
Parallel to Direction of Grain Not Parallel to Direction of Grain
C C
Flow Flow
E
Elongation in 2 in. or
4 × 4 × Dia,
Dia, min, %
Brinell Hard-
Elongation
Alloy and Specified Thick-Thickness,
E
Yield Tensile Yield
Hardness,
Separate in
Tensile
Temper Temper ness, in.
E E D
Strength
Strength Strength 2 in. or ness , min
Test
Strength
E
(0.2 % Strength, , (0.2 % 4 × 4 × Diameter,
E
Coupon
Strength, ,
Offset), min, Offset), Dia., min,
min, ksi
Forgings (from stock
min, ksi ksi min, ksi % %
Test
Forgings
or forged)
F
Coupon
1100-H112 up through 4.000 11.0 4.0 18 25 . . . 20
2014-T4 up through 4.000 55.0 30.0 11 16 . . . 100
2014-T6 up through 1.000 65.0 56.0 6 8 64.0 55.0 3 125
1.001–2.000 65.0 56.0 6 . 64.0 55.0 2 125
2.001–3.000 65.0 55.0 6 . 63.0 54.0 2 125
3.001–4.000 63.0 55.0 6 . 63.0 54.0 2 125
2018-T61 up through 4.000 55.0 40.0 7 10 . . . 100
2025-T6 up through 4.000 52.0 33.0 11 16 . . . 100
2218-T61 up through 4.000 55.0 40.0 7 10 . . . 100
2219-T6 up through 4.000 58.0 38.0 8 10 56.0 36.0 4 100
2618-T61 up through 4.000 58.0 45.0 4 6 55.0 42.0 4 115
3003-H112 up through 4.000 14.0 5.0 18 25 . . . 25
4032-T6 up through 4.000 52.0 42.0 3 5 . . . 115
5083-H111 up through 4.000 42.0 22.0 14 14 39.0 20.0 12 .
5083-H112 up through 4.000 40.0 18.0 16 16 39.0 16.0 14 .
6061-T6 up through 4.000 38.0 35.0 7 10 38.0 35.0 5 80
6066-T6 up through 4.000 50.0 45.0 8 12 . . . 100
6151-T6 up through 4.000 44.0 37.0 10 14 44.0 37.0 6 90
7049-T73 up through 1.000 72.0 62.0 7 10 71.0 61.0 3 135
1.001–2.000 72.0 62.0 7 10 70.0 60.0 3 135
2.001–3.000 71.0 61.0 7 10 70.0 60.0 3 135
3.001–4.000 71.0 61.0 7 10 70.0 60.0 2 135
4.001–5.000 70.0 60.0 7 10 68.0 58.0 2 135
G
7050-T74 up through 2.000 72.0 62.0 7 10 68.0 56.0 5 135
2.001–4.000 71.0 61.0 7 10 67.0 55.0 4 135
4.001–5.000 70.0 60.0 7 10 66.0 54.0 3 135
5.001–6.000 70.0 59.0 7 10 66.0 54.0 3 135
7075-T6 up through 1.000 75.0 64.0 7 10 71.0 61.0 3 135
1.001–2.000 74.0 63.0 7 . 71.0 61.0 3 135
2.001–3.000 74.0 63.0 7 . 70.0 60.0 3 135
3.001–4.000 73.0 62.0 7 . 70.0 60.0 2 135
7075-T73 up through 3.000 66.0 56.0 7 . 62.0 53.0 3 125
3.001–4.000 64.0 55.0 7 . 61.0 52.0 2 125
7075-T7352 up through 3.000 66.0 56.0 7 . 62.0 51.0 3 125
3.001–4.000 64.0 53.0 7 . 61.0 49.0 2 125
7076-T61 up through 4.000 70.0 60.0 10 14 67.0 58.0 3 140
G
7175-T74 up through 3.000 76.0 66.0 7 10 71.0 62.0 4 .
G
7175-T7452 up through 3.000 73.0 63.0 7 10 68.0 55.0 4 .
G
7175-T7454 up through 3.000 75.0 65.0 7 10 70.0 61.0 4 .
B247 − 20
A
To determine conformance to this specification, each value for tensile strength and yield strength shall be rounded to the nearest 0.1 ksi and each value for elongation
to the nearest 0.5 % (or the nearest 0.1 % if measured in accordance with 7.8.4 of Test Methods B557), in accordance with the rounding-off method of Practice E29.
B
For the basis for establishment of strength property limits, see Annex A1.
C
These values apply to standard specimens. For the heat-treatable alloys the thicknesses shown are the maximum thickness at time of heat treatment for which the
indicated properties apply. Forgings machined prior to heat treatment shall develop the properties applicable to the heat-treated thickness provided the as-forged thickness
is not more than twice the heat-treated thickness.
D
For information only. The hardness is usually measured on the surface of a forging using a 500-kgf500 kgf load and 10-mm10 mm ball.
E
Tensile property test requirements in any direction are limited to a minimum material dimension of 2.000 in. because of the difficulty to obtain a tension test specimen
suitable for routine control testing.
F
From stock or forged. These values apply to standard ⁄2-in. diameter test specimens machined from the stock used in making the forgings, or from separately forged
coupons representative of the forgings.
G
Beginning with the 1985 issue the T736, T73652, and T73654 tempers were replaced by the T74, T7452, and T7454 tempers respectively as applicable to alloys 7050
and 7175.
A,B,C
TABLE 3 Mechanical Property Limits for Rolled Ring Forgings
Elongation
Maximum
Yield Strength in 2 in. or
Alloy andand Temper Heat Treat Tensile Strength,
Direction (0.2 % Offset), 4 × Diameter,4
D
Temper Section Thick-Thickness, min, ksi
D
min, ksi × Diameter,
ness, in.
min, %
2014-T6 and up through tangential 65.0 55.0 7
E
2014-T652 2.500 axial 62.0 55.0 3
F
radial 60.0 52.0 2
2.501 to 3.000 tangential 65.0 55.0 6
axial 62.0 52.0 2
F
radial . . .
2219-T6 up through tangential 56.0 40.0 6
2.500 axial 55.0 37.0 4
F
radial 53.0 35.0 2
2618-T61 up through tangential 55.0 41.0 6
2.500 axial 55.0 41.0 5
F
radial . . .
6061-T6 and up through tangential 38.0 35.0 10
E
6061-T652 2.500 axial 38.0 35.0 8
F
radial 37.0 33.0 5
6061-T6 and up through tangential 38.0 35.0 10
E
6061-T652 2.500 axial 38.0 35.0 8
F
radial 37.0 33.0 5
2.501 to 3.500 tangential 38.0 35.0 8
axial 38.0 35.0 6
F
radial 37.0 33.0 4
6151-T6 and up through tangential 44.0 37.0 5
E
6151-T652 2.500 axial 44.0 35.0 4
F
radial 42.0 35.0 2
6151-T6 and up through tangential 44.0 37.0 5
E
6151-T652 2.500 axial 44.0 35.0 4
F
radial 42.0 35.0 2
7075-T6 and up through tangential 73.0 62.0 7
E
7075-T652 2.000 axial 72.0 61.0 3
F
radial 68.0 58.0 2
7075-T6 and up through tangential 73.0 62.0 7
E
7075-T652 2.000 axial 72.0 61.0 3
F
radial 68.0 58.0 2
2.001 to 3.500 tangential 71.0 60.0 6
axial 70.0 59.0 3
F
radial . . .
A
To determine conformance to this specification each value for tensile strength and yield strength shall be rounded to the nearest 0.1 ksi and each value for elongation
to the nearest 0.5 % (or the nearest 0.1 % if measured in accordance with 7.8.4 of Test Methods B557), in accordance with the rounding-off method of Practice E29.
B
Tensile property test requirements in any direction are limited to a minimum material dimension of 2.000 in. because of the difficulty to obtain a tension test specimen
suitable for routine control testing.
C
Applicable only to rings which have an OD-to-wall thickness ratio of 10/1 or greater. Those having a smaller ratio shall be the subject of agreement between the purchaser
and producer.
D
The basis for establishment of mechanical property limits is shown in Annex A1.
E
Forgings may be available in the T651 temper but shall be the subject of agreement between the purchaser and producer.
F
Radial properties are not specified requirements. For wall thicknesses 2 in. and greater, they will be determined when specifically requested for informational purposes
only.
B247 − 20
TABLE 4 Ultrasonic Discontinuity Limits for Die and Hand
A
Forgings
Thick- Maximum Weight Discontinuity
Alloy Product
B
ness, in. per Piece, lb Class
2014 0.500–4.000 die forgings 300 B
2219 0.500–4.000
7049 0.500–4.000
7050 0.500–4.000
7075 0.500–4.000
7175 0.500–4.000
2014 1.000–8.000 hand forgings 600 A
2219 1.000–8.000
7049 1.000–8.000
7050 1.000–8.000
7075 1.000–8.000
7175 1.000–8.000
A
Discontinuities in excess of those listed in this table shall be allowed if it is
established that they will be removed by machining or that they are in noncritical
areas.
B
The discontinuity class limits are defined in Section 11 of Practice B594.
2.5 SAE:SAE Standard:
AMS 2772 Heat Treatment of Aluminum Alloys Raw Materials
2.6 Federal Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
2.7 National Aerospace Standard:
NAS 410 Certification and Qualification of Nondestructive Test Personnel
2.8 Other Standards:Standard:
CEN EN 14242 Aluminum and aluminum alloys. Chemical Analysis. Inductively coupled plasma optical emission spectral
analysis
3. Terminology
3.1 Definitions:
3.1.1 Refer to Terminology B881 for definitions of product terms used in this specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 capable of—Thethe term capable of as used in this specification means that the test need not be performed by the producer
of the material. However,material; however, should subsequent testing by the purchaser establish that the material does not meet
the requirements, the material shall be subject to rejection.
4. Ordering Information
4.1 Orders for material to this specification shall include the following information:
4.1.1 This specification designation (which includes the number, the year, and the revision letter, if applicable),
4.1.2 Quantity in pieces or pounds,
4.1.3 Alloy (Section 7),
4.1.4 Temper (Section 8), and
4.1.5 Dimensions (Section 13). A drawing is required for die forgings and for hand forgings whose shapes are not simple
rectangles,rectangles.
Available from Society of Automotive Engineers SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001,15096, http://www.sae.org.
Available from Aerospace Industries Association of America, Inc. (AIA), 1000 Wilson Blvd., Suite 1700, Arlington, VA 22209-3928, http://www.aia-aerospace.org.
Available from European Committee for Standardization, Central Secretariat (CEN), rue de Stassart 36, B1050 Brussels, Belgium, http://www.cen.eu/esearch.
Standardization (CEN), Avenue Marnix 17, B-1000, Brussels, Belgium, http://www.cen.eu.
B247 − 20
4.2 Additionally, orders for material to this specification shall include the following information when required by the
purchaser:
4.2.1 For die forgings, whether tensile property and grain flow survey shall be made (8.2.1.1),
4.2.2 For die forgings, whether tension tests are required using specimens not parallel to the direction of grain flow and whether
such test specimens shall be prepared by a specific method (8.3.1),
4.2.3 For hand forgings, whether tension tests shall be made in other than the long transverse and short transverse directions
(8.3.3),
4.2.4 For rolled ring forgings, whether tension tests shall be made in the radial direction (8.3.4),
4.2.5 Whether it is required in tension tests that small elongations shall be measured by a special procedure (8.4.2),
4.2.6 Whether heat treatment is to be in accordance with Practicea B918 is required (specific heat treatment practice described
in Section 9.29),,
4.2.7 Whether 7075-F material shall meet the requirements for T73 temper (10.3),
4.2.8 Whether ultrasonic inspection is required (Section 14 and Table 4),
4.2.9 Whether liquid-penetrant inspection is required (15.3),
4.2.10 Whether inspection or witness of inspection and tests by the purchaser’s representative is required prior to material
shipment (Section 16),
4.2.11 Whether certification is required (Section 18),
4.2.12 Whether hand forgings shall be marked for identification (Section 19), and
4.2.13 Whether Practices B660 applies and, if so, the levels of preservation, packaging, and packing required (Section 20).
5. Materials and Manufacture
5.1 The forgings may be manufactured by pressing, hammering, or rolling at the option of the producer.
6. Responsibility for Quality Assurance
6.1 Responsibility for Inspection and Tests—Unless otherwise specified in the contract or purchase order, the producer is
responsible for the performance of all inspection and test requirements specified herein. The producer may use their own or any
other suitable facilities for the performance of the inspection and test requirements specified herein, unless disapproved by the
purchaser in the order or at the time of contract signing. The purchaser shall have the right to perform any of the inspection and
tests set forth in this specification where such inspections are deemed necessary to ensure that material conforms to prescribed
requirements.
6.2 Lot Definition—An inspection lot shall be defined as follows:
6.2.1 For heat-treated tempers, an inspection lot shall consist of forgings of the same shape, or a group of forgings of similar
size and shape, of the same alloy and heat-treated in the same furnace charge. If forgings are heat-treated in a continuous furnace,
forgings charged consecutively during continuous operation of the furnace shall be considered a furnace charge; for such forgings
weighing 5 lb or less the maximum weight of a lot shall be 2000 lb, and for heavier forgings it shall be 6000 lb.6000 lb.
6.2.2 For nonheat-treated tempers, an inspection lot shall consist of an identifiable quantity of forgings of similar size and shape
of the same alloy and temper subjected to inspection at one time.
7. Chemical Composition
7.1 Limits—The forgings shall conform to the chemical composition limits specified in Table 1. Conformance shall be
determined by the producer by taking samples in accordance with E716 when the ingots are poured and analyzing those samples
in accordance with Test Methods E607, E1251, E34E3061, or EN 14242. At least one sample shall be taken for each group of
ingots poured simultaneously from the same source of molten metal. If the producer has determined the chemical composition
during pouring of the ingots, they shall not be required to sample and analyze the finished product.
7.2 If it becomes necessary to analyze forgings for conformance to chemical composition limits, the methods of sampling and
methods of analysis shall be as provided in the following:
7.2.1 Methods of Sampling—Samples for chemical analysis shall be taken in accordance with B985.
7.2.2 Methods of Analysis—Analysis shall be performed in accordance with Test Methods E607, E1251, E34E3061, or
EN 14242.
NOTE 3—It is standard practice in the United States aluminum industry to determine conformance to the chemical composition limits prior to further
processing of ingots into wrought products. Due to the continuous nature of the process, it is not practical to keep a specific ingot analysis identified with
a specific quantity of finished material.
8. Mechanical Properties of Material as Supplied
8.1 Limits:
8.1.1 Die forgings shall conform to the tensile requirements in Table 2.
B247 − 20
8.1.1.1 Die forgings shall be capable of conforming to the Brinell hardness requirements in Table 2 when measured at or near
the surface, except that in case of question the basis for acceptance shall be conformance with the specified minimum tensile
requirements of Table 2.
8.1.2 Hand forgings shall conform to the tensile requirements in Table 5.
8.1.3 Rolled ring forgings shall conform to the tensile property requirements in Table 3.
B247 − 20
A,B
TABLE 5 Mechanical Property Limits for Hand Forging
Elonga-Elongation
Yield Strength tion in 2
Alloy and Tensile Strength,
C
Thickness, in. Direction (0.2 % Offset), in. or 4 ×
Temper min, ksi
min, ksi Diameter,4 × Diameter,
min, %
2014-T6 up through 2.000 longitudinal 65.0 56.0 8
long transverse 65.0 56.0 3
2.001–3.000 longitudinal 64.0 56.0 8
long transverse 64.0 55.0 3
short transverse 62.0 55.0 2
3.001–4.000 longitudinal 63.0 55.0 8
long transverse 63.0 55.0 3
short transverse 61.0 54.0 2
4.001–5.000 longitudinal 62.0 54.0 7
long transverse 62.0 54.0 2
short transverse 60.0 53.0 1
5.001–6.000 longitudinal 61.0 53.0 7
long transverse 61.0 53.0 2
short transverse 59.0 53.0 1
6.001–7.000 longitudinal 60.0 52.0 6
long transverse 60.0 52.0 2
short transverse 58.0 52.0 1
7.001–8.000 longitudinal 59.0 51.0 6
long transverse 59.0 51.0 2
short transverse 57.0 51.0 1
2014-T652 up through 2.000 longitudinal 65.0 56.0 8
long transverse 65.0 56.0 3
2.001–3.000 longitudinal 64.0 56.0 8
long transverse 64.0 55.0 3
short transverse 62.0 52.0 2
3.001–4.000 longitudinal 63.0 55.0 8
long transverse 63.0 55.0 3
short transverse 61.0 51.0 2
4.001–5.000 longitudinal 62.0 54.0 7
long transverse 62.0 54.0 2
short transverse 60.0 50.0 1
5.001–6.000 longitudinal 61.0 53.0 7
long transverse 61.0 53.0 2
short transverse 59.0 50.0 1
6.001–7.000 longitudinal 60.0 52.0 6
long transverse 60.0 52.0 2
short transverse 58.0 49.0 1
7.001–8.000 longitudinal 59.0 51.0 6
long transverse 59.0 51.0 2
short transverse 57.0 48.0 1
2219-T6 up through 4.000 longitudinal 58.0 40.0 6
long transverse 55.0 37.0 4
D
short transverse 53.0 35.0 2
2219-T852 up through 4.000 longitudinal 62.0 50.0 6
long transverse 62.0 49.0 4
D
short transverse 60.0 46.0 3
2618-T61 up through 2.000 longitudinal 58.0 47.0 7
long transverse 55.0 42.0 5
D
short transverse 52.0 42.0 4
2.001–3.000 longitudinal 57.0 46.0 7
long transverse 55.0 42.0 5
short transverse 52.0 42.0 4
3.001–4.000 longitudinal 56.0 45.0 7
B247 − 20
TABLE 5 Continued
Elonga-Elongation
Yield Strength tion in 2
Alloy and Tensile Strength,
C
Thickness, in. Direction (0.2 % Offset), in. or 4 ×
Temper min, ksi
min, ksi Diameter,4 × Diameter,
min, %
long transverse 53.0 40.0 5
short transverse 51.0 39.0 4
5083-H111 up through 4.000 longitudinal 42.0 22.0 14
long transverse 39.0 20.0 12
5083-H112 up through 4.000 longitudinal 40.0 18.0 16
long transverse 39.0 16.0 14
6061-T6 up through 4.000 longitudinal 38.0 35.0 10
or T652 long transverse 38.0 35.0 8
D
short transverse 37.0 33.0 5
6061-T6 up through 4.000 longitudinal 38.0 35.0 10
or T652 long transverse 38.0 35.0 8
D
short transverse 37.0 33.0 5
4.001–8.000 longitudinal 37.0 34.0 8
long transverse 37.0 34.0 6
short transverse 35.0 32.0 4
7049-T73 2.001–3.000 longitudinal 71.0 61.0 9
long transverse 71.0 59.0 4
short transverse 69.0 58.0 3
3.001–4.000 longitudinal 69.0 59.0 8
long transverse 69.0 57.0 3
short transverse 67.0 56.0 2
4.001–5.000 longitudinal 67.0 56.0 7
long transverse 67.0 56.0 3
short transverse 66.0 55.0 2
7049-T7352 1.001–3.000 longitudinal 71.0 59.0 9
long transverse 71.0 57.0 4
D
short transverse 69.0 56.0 3
3.001–4.000 longitudinal 69.0 57.0 8
long transverse 69.0 54.0 3
short transverse 67.0 53.0 2
4.001–5.000 longitudinal 67.0 54.0 7
long transverse 67.0 53.0 3
short transverse 66.0 51.0 2
E
7050-T7452 up through 2.000 longitudinal 72.0 63.0 9
long transverse 71.0 61.0 5
2.001–3.000 longitudinal 72.0 62.0 9
long transverse 70.0 60.0 5
short transverse 67.0 55.0 4
3.001–4.000 longitudinal 71.0 61.0 9
long transverse 70.0 59.0 5
short transverse 67.0 55.0 4
4.001–5.000 longitudinal 70.0 60.0 9
long transverse 69.0 58.0 4
short transverse 66.0 54.0 3
5.001–6.000 longitudinal 69.0 59.0 9
long transverse 68.0 56.0 4
short transverse 66.0 53.0 3
6.001–7.000 longitudinal 68.0 58.0 9
long transverse 67.0 56.0 4
short transverse 65.0 52.0 3
7.001–8.000 longitudinal 67.0 57.0 9
long transverse 66.0 52.0 4
short transverse 64.0 50.0 3
B247 − 20
TABLE 5 Continued
Elonga-Elongation
Yield Strength tion in 2
Alloy and Tensile Strength,
C
Thickness, in. Direction (0.2 % Offset), in. or 4 ×
Temper min, ksi
min, ksi Diameter,4 × Diameter,
min, %
7075-T6 up through 2.000 longitudinal 74.0 63.0 9
long transverse 73.0 61.0 4
2.001–3.000 longitudinal 73.0 61.0 9
long transverse 71.0 59.0 4
short transverse 69.0 58.0 3
3.001–4.000 longitudinal 71.0 60.0 8
long transverse 70.0 58.0 3
short transverse 68.0 57.0 2
4.001–5.000 longitudinal 69.0 58.0 7
long transverse 68.0 56.0 3
short transverse 66.0 56.0 2
5.001–6.000 longi
...