ASTM A672-96(2001)
(Specification)Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures
Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures
SCOPE
1.1 This specification covers steel pipe: electric-fusion-welded with filler metal added, fabricated from pressure-vessel quality plate of any of several analyses and strength levels and suitable for high-pressure service at moderate temperatures. Heat treatment may or may not be required to attain the desired properties or to comply with applicable code requirements. Supplementary requirements are provided for use when additional testing or examination is desired.
1.2 The specification nominally covers pipe 16 in. (405 mm) in outside diameter or larger with wall thicknesses up to 3 in. (75 mm), inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.
1.3 Several grades and classes of pipe are provided.
1.3.1 Grade designates the type of plate used.
1.3.2 Class designates the type of heat treatment performed during manufacture of the pipe, whether the weld is radiographically examined, and whether the pipe has been pressure tested as listed in 1.3.3.
1.4 The values stated in inch-pound units are to be regarded as the standard.
General Information
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An American National Standard
Designation: A 672 – 96 (Reapproved 2001)
Standard Specification for
Electric-Fusion-Welded Steel Pipe for High-Pressure Service
at Moderate Temperatures
This standard is issued under the fixed designation A 672; 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
50 quenched and tempered, see 5.3.4 none none
51 quenched and tempered, see 5.3.4 9 none
1.1 This specification covers steel pipe: electric-fusion-
52 quenched and tempered, see 5.3.4 9 8.3
welded with filler metal added, fabricated from pressure-vessel 53 quenched and tempered, see 5.3.4 none 8.3
quality plate of any of several analyses and strength levels
NOTE 1—Selection of materials should be made with attention to tem-
and suitable for high-pressure service at moderate tempera-
perature of service. For such guidance, Specification A 20/A 20M may be
tures. Heat treatment may or may not be required to attain the consulted.
desired properties or to comply with applicable code require-
1.4 The values stated in inch-pound units are to be regarded
ments. Supplementary requirements are provided for use when
as the standard.
addi-tional testing or examination is desired.
2. Referenced Documents
1.2 The specification nominally covers pipe 16 in. (405 mm)
2.1ASTM Standards:
in outside diameter or larger with wall thicknesses up to 3
A 20/A 20M Specification for General Requirements for
in. (75 mm), inclusive. Pipe having other dimensions may be
Steel Plates for Pressure Vessels
furnished provided it complies with all other requirements of
A 370 Test Methods and Definitions for Mechanical Testing
this specification.
1.3 Several grades and classes of pipe are provided.
of Steel Products
1.3.1Gradedesignates the type of plate used.
A 435/A 435M Specification for Straight-Beam Ultrasonic
1.3.2Classdesignates the type of heat treatment performed
Examination of Steel Plates
during manufacture of the pipe, whether the weld is radio-
A 530/A 530M Specification for General Requirements for
graphically examined, and whether the pipe has been pressure
Specialized Carbon and Alloy Steel Pipe
tested as listed in 1.3.3.
A 577/A 577M Specification for Ultrasonic Angle-Beam Ex-
1.3.3 Class designations are as follows (Note 1): 3
amination of Steel Plates
Radiography, Pressure Test,
A 578/A 578M Specification for Straight-Beam Ultrasonic
Class Heat Treatment on Pipe see Section see Section
Examination of Plain and Clad Steel Plates for Special
10 none none none Applications
11 none 9 none
E 110 Test Method for Indentation Hardness of Metallic
12 none 9 8.3
13 none none 8.3 Materials by Portable Hardness Testers
20 stress relieved, see 5.3.1 none none
E 165 Test Method for Liquid Penetrant Examination
21 stress relieved, see 5.3.1 9 none
E 350 Test Methods for Chemical Analysis of Carbon Steel,
22 stress relieved, see 5.3.1 9 8.3
23 stress relieved, see 5.3.1 none 8.3
Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and
30 normalized, see 5.3.2 none none
Wrought Iron
31 normalized, see 5.3.2 9 none
32 normalized, see 5.3.2 9 8.3
E 709 Guide for Magnetic Particle Examination 2.1.2Plate
33 normalized, see 5.3.2 none 8.3
Steel Specifications(Table 1): A202/A202M Pressure Vessel
40 normalized and tempered, see 5.3.3 none none
41 normalized and tempered, see 5.3.3 9 none
Plates, Alloy Steel,
42 normalized and tempered, see 5.3.3 9 8.3
Chromium-Manganese-Silicon
43 normalized and tempered, see 5.3.3 none 8.3
A 204/A 204M Pressure Vessel Plates, Alloy Steel, Molyb-
1 This specification is under the jurisdiction of ASTM Committee A01
denum
on Steel,
3 Annual Book of ASTM Standards, Vol 01.04.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4 Annual Book of ASTM Standards, Vol 01.03.
A01.09 on Carbon Steel Tubular Products.
5 Annual Book of ASTM Standards, Vol 01.01.
Current edition approved Oct. 10, 1996. Published October 1997. Originally
6 Annual Book of ASTM Standards, Vol 03.01.
published as A 672 – 72. Last previous edition A 672 – 94.
7 Annual Book of ASTM Standards, Vol 03.03.
2 For ASME Boiler and Pressure Vessel Code applications see related Specifi-
8 Annual Book of ASTM Standards, Vol 03.05.
cation SA-672 in Section II of that Code.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
Copyright ASTM International 1
Provided by IHS under license with ASTM Licensee=ASTM/5955840001, User=Pace, John
Not for Resale, 12/10/2012 07:15:47 MST
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A 672
TABLE 1 Plate Specification
Section IX, Welding Qualifications
ASTM Specification
3. Terminology
Pipe Grade Type of Steel
No. Grade
3.1Definitions of Terms Specific to This Standard:
A 45 plain carbon A 285 A
3.1.1 Alotshall consist of 200 ft (61 m) or fraction thereof of
A 50 plain carbon A 285 B
pipe from the same heat of steel.
A 55 plain carbon A 285 C
3.1.2 The description of a lot may be further restricted by
B 55 plain carbon, killed A 515 55
use of Supplementary Requirement S14.
B 60 plain carbon, killed A 515 60
B 65 plain carbon, killed A 515 65
4. Ordering Information
B 70 plain carbon, killed A 515 70
4.1 The inquiry and order for material under this specifica-
C 55 plain carbon, killed, fine grain A 516 55
C 60 plain carbon, killed, fine grain A 516 60 tion should include the following information:
C 65 plain carbon, killed, fine grain A 516 65
4.1.1 Quantity (feet, metres, or number of lengths),
C 70 plain carbon, killed, fine grain A 516 70
4.1.2 Name of material (steel pipe, electric-fusionwelded),
4.1.3 Specification number,
D 70 manganese-silicon—normal- A 537 1
A 4.1.4 Grade and class designations (see 1.3),
D 80 ized manganese-silicon—Q&T A 537 2
4.1.5 Size (inside or outside diameter, nominal or minimum
E 55
plain carbon A 442 55
wall thickness),
E 60
plain carbon
A 442 60
4.1.6 Length (specific or random),
H 75
manganese-molybdenum—normalized
A 302 A
4.1.7 End finish (11.4),
H 80
manganese-molybdenum—normalized
A 302 B, C or D
4.1.8 Purchase options, if any (see 5.2.3, 11.3, 14.1 and
A B
J 80 manganese-molybdenum—Q&T A 533 Cl-1
Sections 16, 20.1, 21, 22 of Specification A 530/A 530M), and
A B
J 90 manganese-molybdenum—Q&T A 533 Cl-2
A B
4.1.9 Supplementary requirements, if any, (refer to S1 through
J 100 manganese-molybdenum—Q&T A 533 Cl-3
S14).
K 75 chromium-manganese-silicon A 202 A
5. Materials and Manufacture
K 85 chromium-manganese-silicon A 202 B
5.1Materials—The steel plate material shall conform to
L 65 molybdenum A 204 A
the requirements of the applicable plate specification for pipe
L 70 molybdenum A 204 B
L 75 molybdenum A 204 C
grade ordered as listed in Table 1. 5.2Welding:
5.2.1 The joints shall be double-welded, full-penetration
N 75 manganese-silicon A 299 . . .
welds made in accordance with procedures and by welders
A Q&T = quenched and tempered.
B Any grade may be furnished. or welding operators qualified in accordance with the ASME
Boiler and Pressure Vessel Code, Section IX.
5.2.2 The welds shall be made either manually or automati-
A 285/A 285M Pressure Vessel Plates, Carbon Steel, Low-
cally by an electric process involving the deposition of filler
and Intermediate-Tensile Strength
metal.
A299/A299M Pressure Vessel Plates, Carbon Steel,
Manganese-Silicon
5.2.3 The welded joint shall have positive reinforcement at
A302/A302M Pressure Vessel Plates, Alloy Steel, Manga- the center of each side of the weld, but not more than ⁄8in. (3.2
nese-Molybdenum and Manganese-Molybdenum Nickel mm). This reinforcement may be removed at the manufactur-
A 442/A 442M Pressure Vessel Plates, Carbon Steel, Im- er’s option or by agreement between the manufacturer and
purchaser. The contour of the reinforcement shall be smooth,
proved Transition Properties
and the deposited metal shall be fused smoothly and uniformly
A 515/A 515M Pressure Vessel Plates, Carbon Steel, for
into the plate surface.
Intermediate- and Higher-Temperature Service A 516/A
5.2.4 When radiographic examination in accordance with
516M Pressure Vessel Plates, Carbon Steel, for Moderate-
9.1 is to be used, the weld reinforcement shall be governed by
and Lower-Temperature Service
the more restrictive provisions of UW–51 of Section VIII of
A533/A533M Pressure Vessel Plates, Alloy Steel, Quenched
the ASME Boiler and Pressure Vessel Code instead of 5.2.3 of
and Tempered, Manganese-Molybdenum and Manganese-
this specification.
Molybdenum-Nickel
A537/A537M Pressure Vessel Plates, Heat-Treated, 5.3Heat Treatment—All classes other than 10, 11, 12 and 13
Carbon-Manganese-Silicon Steel
shall be heat treated in furnace controlled to625°F (14°C) and
2.2 ASME Boiler and Pressure Vessel Code:
equipped with a recording pyrometer so that heating records
Section II, Material Specifications
are available. Heat treating after forming and welding shall be
Section III, Nuclear Vessels
to one of the following:
Section VIII, Unfired Pressure Vessels
5.3.1 Classes 20, 21, 22, and 23 pipe shall be uniformly
9 Available from ASME International, Three Park Avenue, New York, NY
10016–5990.
heated within the post-weld heat-treatment temperature range
indicated in Table 2 for a minimum of 1 h/in. of thickness or 1
h, whichever is greater.
5.3.2 Classes 30, 31, 32, and 33 pipe shall be uniformly
Copyright ASTM International 2
Provided by IHS under license with ASTM Licensee=ASTM/5955840001, User=Pace, John
Not for Resale, 12/10/2012 07:15:47 MST
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A 672
TABLE 2 Heat Treatment Parameters
Normalizing Tem- Quenching Tem- Tempering
Specification and Post-Weld Heat-Treat
A
Pipe Grade
perature, max, perature, max, Temperature, min,
B
Grade
Temperature Range, °F (°C)
°F (°C) °F (°C) °F (°C)
A 45 A 285A 1100–1250 (590–680) 1700 (925) . . . . . .
A 50 A 285B 1100–1250 (590–680) 1700 (925) . . . . . .
A 55 A 285C 1100–1250 (590–680) 1700 (925) . . . . . .
B 55 A 515-55 1100–1250 (590–680) 1750 (950) . . . . . .
B 60 A 515-60 1100–1250 (590–680) 1750 (950) . . . . . .
B 65 A 515-65 1100–1250 (590–680) 1750 (950) . . . . . .
B 70 A 515-70 1100–1250 (590–680) 1750 (950) . . . . . .
C 55 A 516-55 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
C 60 A 516-60 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
C 65 A 516-65 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
C 70 A 516-70 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
D 70 A 537-1 1100–1250 (590–680) 1700 (925) . .
D 80 A 537-2 1100–1250 (590–680) . 1650 (900) 1200 (650)
E 55 A 442-55 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
E 60 A 442-60 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
H 75 A 302-A 1100–1250 (590–680) 1800 (980) . 1100 (590)
H 80 A 302-B, C or D 1100–1250 (590–680) 1800 (980) . 1100 (590)
B
J 80 A 533-C11 1100–1250 (590–680) . . . 1800 (980) 1100 (590)
B
J 90 A 533-C12 1100–1250 (590–680) . . . 1800 (980) 1100 (590)
B
J 100 A 533-C13 1100–1250 (590–680) . . . 1800 (980) 1100 (590)
K 75 A 202A 1100–1200 (590–650) . . .
K 85 A 202B 1100–1200 (590–650) . . .
L 65 A 204A 1100–1200 (590–650) . . . . . . . . .
L 70 A 204B 1100–1200 (590–650) . . . . . . . . .
L 75 A 204C 1100–1200 (590–650) . . . . . . . . .
N 75 A 299 1100–1200 (590–650) 1700 (925) . . . . . .
A Numbers indicate minimum tensile strength in ksi.
B Any grade may be used.
heated to a temperature in the austenitizing range and not
7.2Product Analysis of Weld—The pipe manufacturer shall
exceeding the maximum normalizing temperature indicated in
make an analysis of the finished deposited weld material from
Table 2 and subsequently cooled in air at room temperature.
each 500 ft (152 m) or fraction thereof. Analysis shall conform
5.3.3 Classes 40, 41, 42, and 43 pipe shall be normalized in
to the welding procedure for deposited weld metal.
accordance with 5.3.2. After normalizing, the pipe shall be
7.3 Analysis may be taken from the mechanical test speci-
reheated to the tempering temperature indicated in Table 2 as a
mens. The results of the analyses shall be reported to the
minimum and held at temperature for a minimum of ⁄2h/in. of
purchaser.
thickness or ⁄2h, whichever is greater, and air cooled.
7.4 If the analysis of one of the tests specified in 7.1 or 7.2
5.3.4 Classes 50, 51, 52, and 53 pipe shall be uniformly
does not conform to the requirements specified, analyses shall
heated to a temperature in the austenitizing range, and not
be made on additional pipes of double the original number
exceeding the maximum quenching temperature indicated
from the same lot, each of which shall conform to the require-
in Table 2 and subsequently quenched in water or oil. After
ments specified. Nonconforming pipe shall be rejected.
quenching the pipe shall be reheated to the tempering tempera-
8. Mechanical Properties
ture indicated in Table 2 as a minimum and held at tempera-
1 1
ture for a minimum of ⁄2h/in. of thickness or ⁄2h, whichever is 8.1Tension Test:
greater, and air cooled. 8.1.1Requirements—Transverse tensile properties of
the welded joint shall meet the minimum requirements for
6. General Requirements
ultimate tensile strength of the specified plate material. In
6.1 Material furnished to this specification shall conform to
addition for Grades Dxx, Hxx, Jxx, and Nxx in Classes 3x,
the applicable requirements of the current edition of Specifi-
4x, and 5x transverse tensile properties of the base plate, shall
cation A 530/A 530M unless otherwise provided herein.
be deter-mined on specimens cut from the heat-treated pipe.
These properties shall meet the mechanical test requirements
7. Chemical Composition
of the plate specification.
7.1Product Analysis of Plate—The pipe manufacturer shall
8.1.2Number of Tests—One test specimen shall be made to
make an analysis of each mill heat of plate material. The prod-
represent each lot of finished pipe.
uct analysis so determined shall meet the requirements of
the plate specification to which the material was ordered.
Copyright ASTM Internati
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
An American National Standard Designation: A 672 – 96 (Reapproved 2001)
Designation:A 672–96
Standard Specification for
Electric-Fusion-Welded Steel Pipe for High-Pressure Service
at Moderate Temperatures
This standard is issued under the fixed designation A672; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers steel pipe: electric-fusion-welded with filler metal added, fabricated from pressure-vessel quality
plateofanyofseveralanalysesandstrengthlevelsandsuitableforhigh-pressureserviceatmoderatetemperatures.Heattreatment
may or may not be required to attain the desired properties or to comply with applicable code requirements. Supplementary
requirements are provided for use when additional testing or examination is desired.
1.2 The specification nominally covers pipe 16 in. (405 mm) in outside diameter or larger with wall thicknesses up to 3 in. (75
mm), inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this
specification.
1.3 Several grades and classes of pipe are provided.
1.3.1 Grade designates the type of plate used.
1.3.2 Class designates the type of heat treatment performed during manufacture of the pipe, whether the weld is
radiographically examined, and whether the pipe has been pressure tested as listed in 1.3.3.
1.3.3 Class designations are as follows (Note 1):
Radiography, Pressure Test,
Class Heat Treatment on Pipe see Section see Section
10 none none none
11 none 9 none
12 none 9 8.3
13 none none 8.3
20 stress relieved, see 5.3.1 none none
21 stress relieved, see 5.3.1 9 none
22 stress relieved, see 5.3.1 9 8.3
23 stress relieved, see 5.3.1 none 8.3
30 normalized, see 5.3.2 none none
31 normalized, see 5.3.2 9 none
32 normalized, see 5.3.2 9 8.3
33 normalized, see 5.3.2 none 8.3
40 normalized and tempered, see 5.3.3 none none
41 normalized and tempered, see 5.3.3 9 none
42 normalized and tempered, see 5.3.3 9 8.3
43 normalized and tempered, see 5.3.3 none 8.3
50 quenched and tempered, see 5.3.4 none none
51 quenched and tempered, see 5.3.4 9 none
52 quenched and tempered, see 5.3.4 9 8.3
53 quenched and tempered, see 5.3.4 none 8.3
NOTE 1—Selection of materials should be made with attention to temperature of service. For such guidance, Specification A20/A20M may be
consulted.
1.4 The values stated in inch-pound units are to be regarded as the standard.
2. Referenced Documents
2.1 ASTM Standards:
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
This specification is under the jurisdiction ofASTM CommitteeA-1A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.09 on Carbon Steel Tubular Products.
Current edition approved Oct. 10, 1996. Published October 1997. Originally published as A672–72. Last previous edition A672–94.
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-672 in Section II of that Code.
Annual Book of ASTM Standards, Vol 01.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 672 – 96 (2001)
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel Plates
A530/A530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
A577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel Plates
A578/A578M Specification for Straight-Beam Ultrasonic Examination of Plain and Clad Steel Plates for Special
Applications
E110 Test Method for Indentation Hardness of Metallic Materials by Portable Hardness Testers
E165 Test Method for Liquid Penetrant Examination
E350 TestMethodsforChemicalAnalysisofCarbonSteel,Low-AlloySteel,SiliconElectricalSteel,IngotIron,andWrought
Iron
E709 Guide for Magnetic Particle Examination
2.1.2 Plate Steel Specifications (Table 1):
A202/A202M Pressure Vessel Plates, Alloy Steel, Chromium-Manganese-Silicon
A204/A204M Pressure Vessel Plates, Alloy Steel, Molybdenum
A285/A285M Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength
A299/A299M Pressure Vessel Plates, Carbon Steel, Manganese-Silicon
A302/A302M Pressure Vessel Plates, Alloy Steel, Manganese-Molybdenum and Manganese-Molybdenum Nickel
A442/A442M Pressure Vessel Plates, Carbon Steel, Improved Transition Properties
A515/A515M Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service
A516/A516M Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service
Annual Book of ASTM Standards, Vol 01.03.
Annual Book of ASTM Standards, Vol 01.01.
Annual Book of ASTM Standards, Vol 03.01.
Annual Book of ASTM Standards, Vol 03.03.
Annual Book of ASTM Standards, Vol 03.05.
TABLE 1 Plate Specification
ASTM Specification
Pipe Grade Type of Steel
No. Grade
A 45 plain carbon A 285 A
A 50 plain carbon A 285 B
A 55 plain carbon A 285 C
B 55 plain carbon, killed A 515 55
B 60 plain carbon, killed A 515 60
B 65 plain carbon, killed A 515 65
B 70 plain carbon, killed A 515 70
C 55 plain carbon, killed, fine grain A 516 55
C 60 plain carbon, killed, fine grain A 516 60
C 65 plain carbon, killed, fine grain A 516 65
C 70 plain carbon, killed, fine grain A 516 70
D70 manganese-silicon—normalized A 537 1
A
D80 manganese-silicon—Q&T A 537 2
E55 plain carbon A 442 55
E60 plain carbon A 442 60
H75 manganese-molybdenum—normalized A 302 A
H80 manganese-molybdenum—normalized A 302 B, C or D
A B
J 80 manganese-molybdenum—Q&T A 533 Cl-1
A B
J 90 manganese-molybdenum—Q&T A 533 Cl-2
A B
J 100 manganese-molybdenum—Q&T A 533 Cl-3
K75 chromium-manganese-silicon A 202 A
K85 chromium-manganese-silicon A 202 B
L 65 molybdenum A 204 A
L 70 molybdenum A 204 B
L 75 molybdenum A 204 C
N 75 manganese-silicon A 299 . . .
A
Q&T = quenched and tempered.
B
Any grade may be furnished.
A 672 – 96 (2001)
A533/A533M Pressure Vessel Plates, Alloy Steel, Quenched and Tempered, Manganese-Molybdenum and Manganese-
Molybdenum-Nickel
A537/A537M Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel
2.2 ASME Boiler and Pressure Vessel Code:
Section II, Material Specifications
Section III, Nuclear Vessels
Section VIII, Unfired Pressure Vessels
Section IX, Welding Qualifications
Section III, Nuclear Vessels
Section VIII, Unfired Pressure Vessels
Section IX, Welding Qualifications
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 A lot shall consist of 200 ft (61 m) or fraction thereof of pipe from the same heat of steel.
3.1.2 The description of a lot may be further restricted by use of Supplementary Requirement S14.
4. Ordering Information
4.1 The inquiry and order for material under this specification should include the following information:
4.1.1 Quantity (feet, metres, or number of lengths),
4.1.2 Name of material (steel pipe, electric-fusionwelded),
4.1.3 Specification number,
4.1.4 Grade and class designations (see 1.3),
4.1.5 Size (inside or outside diameter, nominal or minimum wall thickness),
4.1.6 Length (specific or random),
4.1.7 End finish (11.4),
4.1.8 Purchase options, if any (see 5.2.3, 11.3, 14.1 and Sections 16, 20.1, 21, 22 of Specification A530/A530M), and
4.1.9 Supplementary requirements, if any, (refer to S1 through S14).
5. Materials and Manufacture
5.1 Materials—The steel plate material shall conform to the requirements of the applicable plate specification for pipe grade
ordered as listed in Table 1.
5.2 Welding:
5.2.1 The joints shall be double-welded, full-penetration welds made in accordance with procedures and by welders or welding
operators qualified in accordance with the ASME Boiler and Pressure Vessel Code, Section IX.
5.2.2 The welds shall be made either manually or automatically by an electric process involving the deposition of filler metal.
5.2.3 The welded joint shall have positive reinforcement at the center of each side of the weld, but not more than ⁄8 in. (3.2
mm).This reinforcement may be removed at the manufacturer’s option or by agreement between the manufacturer and purchaser.
The contour of the reinforcement shall be smooth, and the deposited metal shall be fused smoothly and uniformly into the plate
surface.
5.2.4 When radiographic examination in accordance with 9.1 is to be used, the weld reinforcement shall be governed by the
more restrictive provisions of UW–51 of Section VIII of the ASME Boiler and Pressure Vessel Code instead of 5.2.3 of this
specification.
5.3 Heat Treatment—All classes other than 10, 11, 12 and 13 shall be heat treated in furnace controlled to 6 25°F (14°C) and
equipped with a recording pyrometer so that heating records are available. Heat treating after forming and welding shall be to one
of the following:
5.3.1 Classes20,21,22,and23pipeshallbeuniformlyheatedwithinthepost-weldheat-treatmenttemperaturerangeindicated
in Table 2 for a minimum of 1 h/in. of thickness or 1 h, whichever is greater.
5.3.2 Classes 30, 31, 32, and 33 pipe shall be uniformly heated to a temperature in the austenitizing range and not exceeding
the maximum normalizing temperature indicated in Table 2 and subsequently cooled in air at room temperature.
5.3.3 Classes40,41,42,and43pipeshallbenormalizedinaccordancewith5.3.2.Afternormalizing,thepipeshallbereheated
to the tempering temperature indicated in Table 2 as a minimum and held at temperature for a minimum of ⁄2 h/in. of thickness
or ⁄2 h, whichever is greater, and air cooled.
5.3.4 Classes 50, 51, 52, and 53 pipe shall be uniformly heated to a temperature in the austenitizing range, and not exceeding
the maximum quenching temperature indicated in Table 2 and subsequently quenched in water or oil. After quenching the pipe
Available from American Society of Mechanical Engineers, 345 E. 47th St., New York, NY 10017.
Available from ASME International, Three Park Avenue, New York, NY 10016–5990.
A 672 – 96 (2001)
TABLE 2 Heat Treatment Parameters
Normalizing Tem- Quenching Tem- Tempering
Specification and Post-Weld Heat-Treat
A
Pipe Grade perature, max, perature, max, Temperature, min,
B
Grade Temperature Range, °F (°C)
°F (°C) °F (°C) °F (°C)
A 45 A 285A 1100–1250 (590–680) 1700 (925) . . . . . .
A 50 A 285B 1100–1250 (590–680) 1700 (925) . . . . . .
A 55 A 285C 1100–1250 (590–680) 1700 (925) . . . . . .
B 55 A 515-55 1100–1250 (590–680) 1750 (950) . . . . . .
B 60 A 515-60 1100–1250 (590–680) 1750 (950) . . . . . .
B 65 A 515-65 1100–1250 (590–680) 1750 (950) . . . . . .
B 70 A 515-70 1100–1250 (590–680) 1750 (950) . . . . . .
C 55 A 516-55 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
C 60 A 516-60 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
C 65 A 516-65 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
C 70 A 516-70 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
D70 A 537-1 1100–1250 (590–680) 1700 (925) . .
D80 A 537-2 1100–1250 (590–680) . 1650 (900) 1200 (650)
E55 A 442-55 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
E60 A 442-60 1100–1250 (590–680) 1700 (925) 1650 (900) 1200 (650)
H75 A 302-A 1100–1250 (590–680) 1800 (980) . 1100 (590)
H80 A 302-B, C or D 1100–1250 (590–680) 1800 (980) . 1100 (590)
B
J 80 A 533-C11 1100–1250 (590–680) . . . 1800 (980) 1100 (590)
B
J 90 A 533-C12 1100–1250 (590–680) . . . 1800 (980) 1100 (590)
B
J 100 A 533-C13 1100–1250 (590–680) . . . 1800 (980) 1100 (590)
K75 A 202A 1100–1200 (590–650) . . .
K85 A 202B 1100–1200 (590–650) . . .
L 65 A 204A 1100–1200 (590–650) . . . . . . . . .
L 70 A 204B 1100–1200 (590–650) . . . . . . . . .
L 75 A 204C 1100–1200 (590–650) . . . . . . . . .
N 75 A 299 1100–1200 (590–650) 1700 (925) . . . . . .
A
Numbers indicate minimum tensile strength in ksi.
B
Any grade may be used.
shall be reheated to the tempering temperature indicated in Table 2 as a minimum and held at temperature for a minimum of ⁄2
h/in. of thickness or ⁄2 h, whichever is greater, and air cooled.
6. General Requirements General Requirements
6.1 Material furnished to this specification shall conform to the applicable requirements of the current edition of Specification
A530/A530M unless otherwise provided herein.
7. Chemical Composition
7.1 Product Analysis of Plate—The pipe manufacturer shall make an analysis of each mill heat of plate material. The product
analysis so determined shall meet the requirements of the plate specification to which the material was ordered.
7.2 Product Analysis of Weld—Thepipemanufacturershallmakeananalysisofthefinisheddepositedweldmaterialfromeach
500 ft (152 m) or fraction thereof. Analysis shall conform to the welding procedure for deposited weld metal.
7.3 Analysis may be taken from the mechanical test specimens. The results of the analyses shall be reported to the purchaser.
7.4 If the analysis of one of the tests specified in 7.1 or 7.2 does not conform to the requirements specified, analyses shall be
made on additional pipes of double the original number from the same lot, each of which shall conform to the requirements
specified. Nonconforming pipe shall be rejected.
8. Mechanical Properties
8.1 Tension Test:
8.1.1 Requirements—Transversetensilepropertiesoftheweldedjointshallmeettheminimumrequirementsforultimatetensile
strengthofthespecifiedplatematerial.InadditionforGradesDxx,Hxx,Jxx,andNxxinClasses3x,4x,and5xtransversetensile
properties of the base plate, shall be determined on specimens cut from the heat-treated pipe. These properties shall meet the
mechanical test requirements of the plate specification.
8.1.2 Number of Tests—One test specimen shall be made to represent each lot of finished pipe.
8.1.3 Test Specimen Location and Orientation—The test specimens shall be taken transverse to the weld at the end of the
finished pipe and may be flattened cold before final machining to size.
A 672 – 96 (2001)
8.1.4 Test Method—The test specimen shall be made in accordance with QW-150 in Section IX of the ASME Boiler and
Pressure Vessel Code. The test specimen shall be tested at room temperature in accordance wi
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