ASTM A372/A372M-03

Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels

SCOPE
1.1 This specification covers relatively thin-walled forgings (including gas bottles) for pressure vessel use. Three types of carbon steel and six types of alloy steel are included. Provision is made for integrally forging the ends of vessel bodies made from seamless pipe or tubing.
Note 1—When working to the chemical and tensile requirements of this specification, the influence of wall thickness and cooling rate will necessarily eliminate certain forging sizes in each class.
Note 2—Designations have been changed as follows:CurrentFormerlyGrade AType IGrade BType IIGrade CType IIIGrade DType IVGrade E Class 55Type V Grade 1 Class 55Grade E Class 65Type V Grade 1 Class 65Grade E Class 70Type V Grade 1 Class 70Grade F Class 55Type V Grade 2 Class 55Grade F Class 65Type V Grade 2 Class 65Grade F Class 70Type V Grade 2 Class 70Grade G Class 55Type V Grade 3 Class 55Grade G Class 65Type V Grade 3 Class 65Grade G Class 70Type V Grade 3 Class 70Grade H Class 55Type V Grade 4 Class 55Grade H Class 65Type V Grade 4 Class 65Grade H Class 70Type V Grade 4 Class 70Grade J Class 55Type V Grade 5 Class 55Grade J Class 65Type V Grade 5 Class 65Grade J Class 70Type V Grade 5 Class 70Grade KType VIGrade LType VIIGrade J Class 110Type VIIIGrade M Class 85Type IX Class AGrade M Class 100Type IX Class B
1.2 The values stated in either inch-pound or SI [metric] units are to be regarded separately as the standard. Within the text and the tables, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.3 Unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.

General Information

• Status: Historical
• Publication Date: 09-Jun-2003
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.06 - Steel Forgings and Billets

Relations

• Replaces: ASTM A372/A372M-02 - Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
• Effective Date: 10-Jun-2003
• Replaced By: ASTM A372/A372M-03(2008) - Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
• Effective Date: 01-Mar-2008
• Referred By: ASTM A788/A788M-23 - Standard Specification for Steel Forgings, General Requirements
• Effective Date: 10-Jun-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 372/A 372M – 03
Standard Specification for
Carbon and Alloy Steel Forgings for Thin-Walled Pressure
1
Vessels
This standard is issued under the fixed designationA372/A372M; 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* values stated in each system are not exact equivalents; there-
2 fore, each system must be used independently of the other.
1.1 This specification covers relatively thin-walled forg-
Combining values from the two systems may result in noncon-
ings (including gas bottles) for pressure vessel use.Three types
formance with the specification.
of carbon steel and six types of alloy steel are included.
1.3 Unless the order specifies the applicable “M” specifica-
Provision is made for integrally forging the ends of vessel
tion designation (SI units), the material shall be furnished to
bodies made from seamless pipe or tubing.
inch-pound units.
NOTE 1—When working to the chemical and tensile requirements of
this specification, the influence of wall thickness and cooling rate will
2. Referenced Documents
necessarily eliminate certain forging sizes in each class.
2.1 ASTM Standards:
NOTE 2—Designations have been changed as follows:
A 275/A 275M Test Method for Magnetic Particle Exami-
Current Formerly
3
nation of Steel Forgings
Grade A Type I
Grade B Type II
A 370 Test Methods and Definitions for MechanicalTesting
Grade C Type III
4
of Steel Products
Grade D Type IV
A 388/A 388M Practice for Ultrasonic Examination of
Grade E Class 55 Type V Grade 1 Class 55
3
Grade E Class 65 Type V Grade 1 Class 65
Heavy Steel Forgings
Grade E Class 70 Type V Grade 1 Class 70
A 530/A 530M Specification for General Requirements for
Grade F Class 55 Type V Grade 2 Class 55
5
Specialized Carbon and Alloy Steel Pipe
Grade F Class 65 Type V Grade 2 Class 65
Grade F Class 70 Type V Grade 2 Class 70
A 788 Specification for Steel Forgings, General Require-
Grade G Class 55 Type V Grade 3 Class 55
3
ments
Grade G Class 65 Type V Grade 3 Class 65
E 112 Test Methods for Determining the Average Grain
Grade G Class 70 Type V Grade 3 Class 70
6
Grade H Class 55 Type V Grade 4 Class 55
Size
Grade H Class 65 Type V Grade 4 Class 65
7
E 165 Practice for Liquid Penetrant Examination
Grade H Class 70 Type V Grade 4 Class 70
E 290 TestMethodforSemi-GuidedBendTestforDuctility
Grade J Class 55 Type V Grade 5 Class 55
6
Grade J Class 65 Type V Grade 5 Class 65
of Metallic Materials
Grade J Class 70 Type V Grade 5 Class 70
E 433 Reference Photographs for Liquid Penetrant Inspec-
Grade K Type VI
7
Grade L Type VII tion
Grade J Class 110 Type VIII
Grade M Class 85 Type IX Class A
3. Ordering Information and General Requirements
Grade M Class 100 Type IX Class B
3.1 In addition to the ordering information required by
1.2 The values stated in either inch-pound or SI [metric]
Specification A 788, the purchaser shall include with the
units are to be regarded separately as the standard. Within the
inquiry and order a detailed drawing, sketch, or written
text and the tables, the SI units are shown in brackets. The
descriptionoftheforgingandtheareasofsignificantloadingin
the forging when required (see 6.4.2.2).
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
3
A01.06 on Steel Forgings and Billets. Annual Book of ASTM Standards, Vol 01.05.
4
Current edition approved June 10, 2003. Published August 2003. Originally Annual Book of ASTM Standards, Vol 01.03.
5
published in 1953. Last previous edition approved in 2002 as A 372/A 372M – 02. Annual Book of ASTM Standards, Vol 01.01.
2 6
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Annual Book of ASTM Standards, Vol 03.01.
7
cation SA-372/SA-372M in Section II of that code. Annual Book of ASTM Standards, Vol 03.03.
*ASummary of Changes section appears at the end of this standard.
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A 372/A 372M – 03
TABLE 1 Chemical Requirements
3.2 Material supplied to this specification shall conform to
the requirements of Specification A 788, which outlines addi- Elements Composition, %
tional ordering information, manufacturing requirements, test-
Grade A Grade B Grade C Grade D
ing and retesting methods and procedures, marking, certifica-
Carbon 0.30 max 0.35 max 0.48 max 0.40–0.50
tion, product analysis variations, and additional supplementary Manganese 1.00 max 1.35 max 1.65 max 1.40–
...