ASTM A633 - A 633M - 24 正火的高强度低合金结构钢

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Designation: A633/A633M −24

Standard Speciﬁcation for

Normalized High-Strength Low-Alloy Structural Steel Plates

This standard is issued under the ﬁxed designation A633/A633M; 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 normalized high-strength low-

alloy structural steel plates for welded, riveted, or bolted

construction.

1.2 This material is particularly suited for service at low

ambient temperatures of −50 °F [−45 °C] and higher where

notch toughness better than that expected in as-rolled material

of a comparable strength level is desired.

1.3 Four grades, designated Grades A, C, D, and E are

covered by this speciﬁcation. Grade A provides a minimum

yield point of 42 ksi [290 MPa]. Grades C and D provide a

minimum yield point of 50 ksi [345 MPa] in thicknesses up to

2.50 in. [65 mm], inclusive and 46 ksi [315 MPa] in thick-

nesses over 2.50 in. [65 mm]. Grade E provides a minimum

yield point of 60 ksi [415 MPa] in thicknesses up to 4.0 in.

[100 mm], inclusive and 55 ksi [380 MPa] in thicknesses over

4 in. [100 mm].

1.4 Current practice normally limits plates furnished under

this speciﬁcation to maximum thickness of 4 in. [100 mm] for

Grades A, C, and D, and to a maximum thickness of 6 in.

[150 mm] for Grade E. However, the maximum thickness of

the plates is limited only by the capacity of the composition to

meet the speciﬁed mechanical property requirements.

1.5 When the steel is to be welded, it is presupposed that a

welding procedure suitable for the grade of steel and intended

use or service will be utilized. See Appendix X3 of Speciﬁca-

tion A6/A6M for information on weldability.

1.6 The values stated in either inch-pound units or SI units

are to be regarded as standard. Within the text, the SI units are

shown in brackets. The values stated in each system may not be

exact equivalents; therefore, each system shall be used inde-

pendently of the other. Combining values from the two systems

may result in non-conformance with the standard.

1.7 This international standard was developed in accor-

dance with internationally recognized principles on standard-

ization established in the Decision on Principles for the

Development of International Standards, Guides and Recom-

mendations issued by the World Trade Organization Technical

Barriers to Trade (TBT) Committee.

2. Referenced Documents

2.1 ASTM Standards:

A6/A6M Speciﬁcation for General Requirements for Rolled

Structural Steel Bars, Plates, Shapes, and Sheet Piling

3. General Requirements for Delivery

3.1 Material furnished under this speciﬁcation shall con-

form to the requirements of the current edition of Speciﬁcation

A6/A6M, for the ordered material, unless a conﬂict exists in

which case this speciﬁcation shall prevail.

4. Materials and Manufacture

4.1 The requirements for ﬁne austenitic grain size in Speci-

ﬁcation A6/A6M shall be met.

5. Heat Treatment

5.1 The material shall be normalized by heating to a suitable

temperature which produces an austenitic structure, but not

exceeding 1700 °F [925 °C], holding a sufficient time to attain

uniform heat throughout the material and cooling in air.

5.1.1 Grade E material over 3 in. [75 mm] in thickness shall

be double normalized.

5.2 If the purchaser elects to perform the required heat

treatment, the material shall be accepted on the basis of mill

tests made from test coupons heat treated in accordance with

the purchase order requirements. If the test coupon heat

treatment requirements are not indicated on the purchase order,

the manufacturer shall heat treat the test coupons under

conditions considered appropriate. The manufacturer shall

This speciﬁcation is under the jurisdiction of ASTM Committee A01 on Steel,

Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee

A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.

Current edition approved March 1, 2024. Published April 2024. Originally

approved in 1970. Last previous edition approved in 2018 as A633/A633M – 18.

DOI: 10.1520/A0633_A0633M-24.

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

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.

inform the purchaser of the heat-treatment procedure followed

in heat treating the test coupons at the mill.

6. Chemical Composition

6.1 The heat analysis shall conform to the chemical com-

position requirements listed in Table 1.

6.2 When a purchaser speciﬁes a product analysis in accor-

dance with Supplementary Requirement S2, the product analy-

sis shall conform to the requirements given in Table 1, subject

to the product analysis tolerances in Speciﬁcation A6/A6M.

7. Tension Test

7.1 The material as represented by the test specimens shall

conform to the requirements listed in Table 2.

8. Keywords

8.1 bolted construction; high-strength; low-alloy; low am-

bient temperatures; normalized; notch toughness; plates; riv-

eted construction; steel; structural steel; welded construction

TABLE 1 Chemical Requirements

NOTE 1—Where “...” appears in this table, there is no requirement.

Element Grade A, % Grade C, % Grade D, % Grade E, %

Carbon, max

Manganese:

0.18 0.20 0.20 0.22

⁄

in. [40 mm] and under in thickness 1.00 to 1.35 1.15 to 1.50

0.70 to 1.35 1.15 to 1.50

Over 1

⁄

in. to 4 in. [40 mm to 100 mm], incl 1.00 to 1.35 1.15 to 1.50

1.00 to 1.60 1.15 to 1.50

Over 4 in. to 6 in. [100 mm to 150 mm], incl

C C C

1.15 to 1.50

Phosphorus, max 0.030 0.030 0.030 0.030

Sulfur, max 0.030 0.030 0.030 0.030

Silicon 0.15 to 0.50 0.15 to 0.50 0.15 to 0.50 0.15 to 0.50

Vanadium ... ... ... 0.04 to 0.11

Columbium (niobium)

0.05 max 0.01 to 0.05 ...

Nitrogen, max ... ... ... 0.03

Copper, max ... ... 0.35 ...

Nickel, max ... ... 0.25 ...

Chromium, max ... ... 0.25 ...

Molybdenum, max ... ... 0.08 ...

For Grade E the minimum total aluminum content shall be 0.018 %, or the vanadium-to-nitrogen ratio shall be 4:1 minimum.

For Grade C manganese content may be increased to 1.60 % maximum provided the carbon content does not exceed 0.18 %.

The size and grade is not described in this speciﬁcation.

Columbium and niobium are interchangeable names for the same element.

Columbium (niobium) may be present in the amount of 0.01 % to 0.05 %.

TABLE 2 Tensile Requirements

Grade A Grades C and D Grade E

Yield point, min, ksi [MPa]:

2.5 in. [65 mm] and under 42 [290] 50 [345] 60 [415]

Over 2.5 in. to 4 in. [65 mm to 100 mm], incl 42 [290] 46 [315] 60 [415]

Over 4 in. to 6 in. [100 mm to 150 mm], incl

B B

55 [380]

Tensile strength, ksi [MPa]:

2.5 in. [65 mm] and under 63 to 83 [430 to 570] 70 to 90 [485 to 620] 80 to 100 [550 to 690]

Over 2.5 in. to 4 in. [65 mm to 100 mm], incl 63 to 83 [430 to 570] 65 to 85 [450 to 585] 80 to 100 [550 to 690]

Over 4 in. to 6 in. [100 mm to 150 mm], incl

B B

75 to 95 [515 to 655]

Elongation in 8 in. [200 mm], min, %

Elongation in 2 in. [50 mm], min, %

See specimen Orientation under the Tension Tests of Speciﬁcation A6/A6M.

The size and grade is not described in this speciﬁcation.

For plates wider than 24 in. [610 mm], the elongation requirement is reduced two percentage points. See elongation requirement adjustments in the Tension Tests section

of Speciﬁcation A6/A6M.

A633/A633M − 24

SUPPLEMENTARY REQUIREMENTS

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:

S2. Product Analysis.

S5. Charpy V-Notch Impact Test.

S23. Copper-Bearing Steel (for improved atmospheric cor-

rosion resistance).

APPENDIX

(Nonmandatory Information)

X1. CHARPY V-NOTCH IMPACT TEST

X1.1 The values shown in Table X1.1 are included only as

information as to the guarantees that are generally available.

Mandatory conformance to any of the values listed is a matter

for agreement between the purchaser and the manufacturer.

SUMMARY OF CHANGES

Committee A01 has identiﬁed the location of selected changes to this standard since the last issue

(A633/A633M – 18) that may impact the use of this standard. (Approved March 1, 2024.)

(1) Revised 6.2.(2) Added Supplementary Requirement S2.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned

in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk

of infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ﬁve years and

if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards

and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the

responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should

make your views known to the ASTM Committee on Standards, at the address shown below.

This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,

United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above

address or at 610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website

(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222

Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http://www.copyright.com/

TABLE X1.1 Charpy V-Notch Impact Test Minimum

Energy Values (Average of Three Specimens)

Test

Temperature,

°F [°C]

Longitudinal

Specimens,

ft·lbf [J]

Transverse

Specimens,

ft·lbf [J]

−75 [−60] 15 [20] 15 [20]

−60 [−50] 20 [27] 15 [20]

−50 [−45] 25 [34] 20 [27]

−40 [−40] 25 [34] 20 [27]

−30 [−35] 30 [41] 25 [34]

0 [−20] 40 [54] 30 [41]

32 [0] 45 [61] 30 [41]

75 [25] 50 [68] 30 [41]

A633/A633M − 24

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标签： #低合金 #结构钢 #正火

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ASTM A633/A633M-2024 Standard Specification for Normalized High-Strength Low-Alloy Structural Steel Plates 正火的高强度低合金结构钢

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