Designation: A827/A827M − 14

Standard Specification for

Plates, Carbon Steel, for Forging and Similar Applications1
This standard is issued under the fixed designation A827/A827M; 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* A6/A6M, for the ordered material, unless a conflict exists in

1.1 This specification covers carbon steel plates, forging which case this specification shall prevail.
quality, intended for forging, quenching-and-tempering, and 4. Materials and Manufacture
similar applications in which uniformity of composition and
freedom from injurious imperfections are important. 4.1 The steel shall be killed.
1.2 The plates are available in six grades, or chemical 5. Chemical Composition
compositions. 5.1 The heat analysis shall conform to the requirements for
1.3 When the steel is to be welded, it is presupposed that a the applicable grade listed in Table 1.
welding procedure suitable for the grade of steel and intended
use or service will be utilized. See Appendix X3 of Specifica- 6. Mechanical Property Requirements
tion A6/A6M for information on weldability. 6.1 The plates shall not be subject to mechanical property
1.4 The values stated in either SI units or inch-pound units testing unless otherwise specified on the order.
are to be regarded separately as standard. The values stated in 7. Quality
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining 7.1 General—The plates shall be free of injurious imperfec-
values from the two systems may result in non-conformance tions and shall have a workmanlike finish.
with the standard. 7.2 Finish—The plates shall be furnished with a finish such
as that produced by hot-rolling, except for ground areas
2. Referenced Documents resulting from conditioning operations, unless otherwise speci-
2.1 ASTM Standards:2 fied on the order.
A6/A6M Specification for General Requirements for Rolled 7.3 Surface Imperfections:
Structural Steel Bars, Plates, Shapes, and Sheet Piling 7.3.1 All injurious surface imperfections shall be removed
2.2 ASME Code:3 by the material manufacturer or processor.
ASME Boiler and Pressure Vessel Code, Section IX 7.3.1.1 Shallow imperfections shall be ground to sound
metal; the ground area shall be well-faired and the thickness of
3. General Requirements and Ordering Information the ground plate shall not be reduced below the minimum
thickness permitted.
3.1 Material furnished under this specification shall con- 7.3.1.2 All surface imperfections, the removal of which will
form to the requirements of the current edition of Specification reduce the plate thickness below the minimum permitted, shall
be cause for rejection; however, such imperfections may be
repaired by welding as provided in 7.5.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
7.4 Edge Imperfections:
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships. 7.4.1 Laminar-type discontinuities 1 in. [25 mm] and less in
Current edition approved May 1, 2014. Published May 2014. Originally length, and visible to the unaided eye on the edges of plates as
approved in 1984. Last previous edition approved in 2011 as A827/A827M – 11. prepared for shipment by the manufacturer or processor, are
DOI: 10.1520/A0827_A0827M-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or acceptable and do not require exploration.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 7.4.2 All larger discontinuities shall be explored to deter-
Standards volume information, refer to the standard’s Document Summary page on mine their depth and extent. Discontinuities shall be considered
the ASTM website.
3
Available from American Society of Mechanical Engineers (ASME), ASME
continuous when located in the same plane within 5 % of the
International Headquarters, Two Park Ave., New York, NY 10016-5990, http:// plate thickness and when separated by a distance less than the
www.asme.org. length of the smaller of two adjacent discontinuities.

*A Summary of Changes section appears at the end of this standard

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 A827/A827M − 14
TABLE 1 Chemical Requirements
Grade Element, %
SAE Carbon Manganese Phosphorus, max Sulfur, max Silicon
1009 0.15 max 0.60 max 0.030 0.030 0.15 to 0.40
1020 0.18 to 0.23 0.30 to 0.60 0.030 0.030 0.15 to 0.40
1035 0.32 to 0.38 0.60 to 0.90 0.030 0.030 0.15 to 0.40
1040 0.37 to 0.44 0.60 to 0.90 0.030 0.030 0.15 to 0.40
1045 0.43 to 0.50 0.60 to 0.90 0.030 0.030 0.15 to 0.40
1050 0.48 to 0.55 0.60 to 0.90 0.030 0.030 0.15 to 0.40

TABLE 2 Visible Edge Indications Extending Approximately Parallel to Rolled Surfaces

Acceptable Remove by Grinding Acceptable on Edges Cut in Fabrication
Plate Thickness Depth LengthA Depth LengthA Depth LengthA

Column 1 2 3 4 5 6
to 6 in. [150 mm], incl ⁄
1 16 in. [2 mm], max any over 1⁄16 in. to 1⁄8 in. [2 to over 1 in. [25 mm] ⁄ in. [3 mm], max
18 any
3 mm], incl
over 6 in. [150 mm] ⁄ in. [3 mm], max
18 any over 1⁄8 in. to 1⁄2 in. [3 to over 1 in. [25 mm] ⁄ in. [13 mm], max
12 any
13 mm], incl
A
Laminar-type discontinuities 1 in. [25 mm] and less in length are acceptable and do not require exploration.

7.4.3 Indications visible to the unaided eye, on the cut edges 7.5.2 The welding procedures shall be demonstrated to be
of a plate as prepared for shipment by the manufacturer or suitable for the grade of material being repaired.
processor shall not exceed the limits given in Columns 1 and 2 7.5.3 The deposited weld metal shall have a chemical
of Table 2. composition similar to the nominal composition of the plate.
7.4.4 Larger indications shall be removed by the manufac- 7.5.4 Preparation for repair welding shall include inspection
turer or processor by grinding provided the resultant cavity to assure complete removal of the defect.
does not exceed the limits given in Columns 3 and 4 of Table 7.5.5 If repair by welding is not acceptable, or if approval of
2. the welding procedure by the purchaser is required, the order
7.4.5 Indications of greater magnitude shall be cause for shall so specify.
rejection; however, the defects may be removed and replaced
with weld metal as provided in 7.5. 8. Certification
7.4.6 Indications on the edges of a plate cut during fabrica- 8.1 A report of the heat analysis and the results of all tests
tion shall be cause for rejection of the plate, at the discretion of required by the order shall be furnished to the purchaser. The
the purchaser, when the magnitude exceeds the limits given in report shall include a certification that the material was
Columns 5 and 6 of Table 2. The defects may be removed and manufactured in accordance with the requirements of this
replaced with weld metal as provided in 7.5. specification.
7.5 Repair by Welding:
7.5.1 Repairs shall be done by welders or welding operators 9. Keywords
meeting the qualification requirements of ASME Boiler and 9.1 carbon; forging; imperfections; plates; quenching; steel;
Pressure Vessel Code. structural steel; tempering; uniformity of composition

SUPPLEMENTARY REQUIREMENTS

Supplementary requirements shall not apply unless specified in the purchase order or contract.
Standardized supplementary requirements for use at the option of the purchaser are listed in
Specification A6/A6M. Those that are considered suitable for use with this specification are listed by
title:

S1. Vacuum Treatment, S5. Charpy V-Notch Impact Test, and

S2. Product Analysis, S8. Ultrasonic Examination.

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 A827/A827M − 14
ADDITIONAL SUPPLEMENTARY REQUIREMENTS

In addition, the following special supplementary requirements are also suitable for use with this
specification.

S82. Hardness Tests plates of the same heat not differing in thickness by more than
S82.1 Hardness tests shall be made as specified on the order ⁄ in. [10 mm]. The test results shall conform to the require-
38

and the test results shall conform to the requirements specified ments stated on the order.
on the order.
S95. Tension Test Requirements
S95.1 Two tension tests shall be made on each lot unless the
lot consists of only the product of one plate as-rolled, in which
case one test shall be made on the lot. A lot shall consist of all

SUMMARY OF CHANGES

Committee A01 has identified the location of selected changes to this standard since the last issue
(A827/A827M – 11) that may impact the use of this standard. (Approved May 1, 2014.)

(1) Modified phosphorous and sulfur limits in Table 1.

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