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ASTM A1012-00

(Specification)

Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins

Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins

SCOPE
1.1 This specification describes seamless and welded ferritic, austenitic and duplex alloy steel tubing on which the external or internal surface, or both, has been modified by a cold forming process to produce an integral enhanced surface for improved heat transfer. The tubes are used in surface condensers, evaporators, heat exchangers and similar heat transfer apparatus in unfinned end diameters up to and including 1 in. (25.4 mm). Boiler tubes are excluded.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following precautionary statement pertains to the test method portion only: Section 12 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
09-Sep-2000
ICS
77.140.01 - Iron and steel products in general
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.10 - Stainless and Alloy Steel Tubular Products
Current Stage
Ref Project

Relations

Replaced By
ASTM A1012-02 - Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins
Effective Date
10-Nov-2002

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ASTM A1012-00 - Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral FinsASTM A1012-00 - Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins
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ASTM A1012-00 - Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 1012 – 00
Standard Specification for
Seamless and Welded Ferritic, Austenitic and Duplex Alloy
Steel Condenser and Heat Exchanger Tubes With Integral
Fins
This standard is issued under the fixed designation A 1012; 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 A 789/A 789M Specification for Seamless and Welded Fer-
ritic / Austenitic Stainless Steel Tubing for General Service
1.1 This specification describes seamless and welded fer-
ritic, austenitic and duplex alloy steel tubing on which the
A 803/A 803M Specification for Welded Ferritic Stainless
external or internal surface, or both, has been modified by a
Steel Feedwater Heater Tubes
cold forming process to produce an integral enhanced surface
A 941 Terminology Relating to Steel, Stainless Steel, Re-
for improved heat transfer. The tubes are used in surface
lated Alloys, and Ferroalloys
condensers, evaporators, heat exchangers and similar heat
E 1316 Terminology for Nondestructive Examinations
transfer apparatus in unfinned end diameters up to and includ-
ing 1 in. (25.4 mm). Boiler tubes are excluded.
3. Terminology
1.2 The values stated in inch-pound units are to be regarded
3.1 Definitions—For definition of general terms used in this
as the standard. The values given in parentheses are for
specification, refer to Specification A 941.
information only.
3.2 Symbols (Integral Fin Tube Nomenclature):
1.3 The following precautionary statement pertains to the
test method portion only: Section 12 of this specification: This
standard does not purport to address all of the safety concerns,
D = outside diameter of unenhanced section
if any, associated with its use. It is the responsibility of the user
D = inside diameter of unenhanced section
i
of this standard to establish appropriate safety and health
d = root diameter of enhanced section outside of tube
r
practices and determine the applicability of regulatory limita-
d = outside diameter of enhanced section
o
tions prior to use. d = inside diameter of enhanced section
i
W = wall thickness of unenhanced section
2. Referenced Documents
W = wall thickness of enhanced section
f
F = height of fin—enhanced section outside of tube
2.1 ASTM Standards:
h
F = mean fin thickness—enhanced section outside of tube
A 213/A 213M Specification for Seamless Ferritic and Aus-
m
P = mean rib pitch—enhanced section inside of tube
tenitic Alloy-Steel Boiler, Superheater, and Heat-
R = height of rib—enhanced section inside of tube
h
Exchanger Tubes
H = rib helix angle—enhanced section inside of tube
a
A 249/A 249M Specification for Welded Austenitic Steel
T = transition taper
t
Boiler, Superheater, Heat-Exchanger and Condenser
Tubes
4. Ordering Information
A 268/A 268M Specification for Seamless and Welded Fer-
ritic and Martensitic Stainless Steel Tubing for General
Service
A 269/A 269M Specification for Seamless and Welded Aus-
tenitic Stainless Steel Tubing for General Service
A 450/A 450M Specification for General Requirements for
Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes
A 688/A 688M Specification for Welded Austenitic Stain-
less Steel Feedwater Heater Tubes
FIG. 1 Outside Enhancement Only
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
4.1 It is the responsibility of the purchaser to specify all
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.10 on Tubing.
Current edition approved Sept. 10, 2000. Published November 2000.
2 3
Annual Book of ASTM Standards, Vol 01.01. Annual Book of ASTM Standards, Vol 03.03.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A 1012
7. Temper
7.1 The tube after enhancing shall normally be supplied in
the as-finned temper. When specified by the purchaser, for
bending, coiling or other fabricating operations, enhanced
portions of the tube may be stress relief annealed or solution
annealed.
7.2 Heat treatment of enhanced sections, or bend areas, or
both, shall be in accordance with the governing plain tube
specification.
FIG. 2 Outside and Inside Enhancement
8. Chemical Composition
8.1 The tubing specified shall conform to the chemical
requirements prescribed in the governing plain tube specifica-
requirements that are necessary for material ordered under this
tion.
specification. Such requirements may include, but are not
limited to, the following:
9. Tensile Requirements
4.1.1 ASTM designation and year of issue (this specifica-
9.1 The tube prior to the finning operation, or unenhanced
tion);
portions of the finned tube, shall conform to the requirements
4.1.2 ASTM designation and year of issue (plain tube
for tensile properties prescribed in the governing plain tube
specification);
specification.
4.1.3 Welded or seamless;
4.1.4 Alloy grade and UNS designation;
10. Permissible Variations in Dimensions
4.1.5 Dimensions; plain tube outside diameter, plain tube
10.1 Diameter—The outside diameter of the unenhanced
wall thickness (average or minimum specified), length and
sections shall not exceed the diameter tolerances shown in the
location of unenhanced surfaces and the total tube length.
governing plain tube specification as measured by micrometers
Configuration of enhanced surfaces (fins per unit length, fin
and verified by “go” and “no go” ring gages. The diameter over
height, wall thickness under fin, rib pitch, rib height, etc.) shall
the enhanced sections shall not exceed the diameter of the plain
be as agreed upon between the manufacturer and purchaser
sections involved, as determined by a “go” ring gage unless
(see Figs. 1 and 2).
otherwise specified. The dimensions of the ring gages shall be
4.1.6 Temper (as-finned or stress relief annealed);
as described in 10.1.1 and 10.1.2.
4.1.7 Quantity;
10.1.1 The inside diameter dimension of the “go” ring gage
4.1.8 Packaging;
shall be equal to the nominal tube diameter, plus the maximum
4.1.9 Nondestructive tests;
tolerance, plus .002 in. The length of the “go” ring gage shall
4.1.10 Customer inspection;
be 1 in. (25.4 mm) minimum.
4.1.11 Mill test report;
10.1.2 The inside diameter dimension of the “no go” ring
4.1.12 Certification.
gage shall be equal to the nominal tube diameter minus the
maximum tolerance. The length of the “no go” ring gage shall
5. General Requirements
be 1 in. (25.4 mm) minimum.
5.1 Material furnished under this specification shall con-
10.2 Wall Thickness—The wall thickness of enhanced and
form to the applicable requirements of Specification A 450/
unenhanced sections shall not exceed the thickness tolerances
A 450M unless otherwise provided herein.
shown in the governing plain tube specification unless other-
5.2 Enhanced (integrally finned) sections of the tube shall
wise agreed to between the manufacture and purchaser. No
be produced by cold forming the tubing in such a manner that
tube at any point shall be less than the minimum thickness
exterior fins, wall under the fin and inside ribs (when specified)
specified in the plain sections or in the enhanced sections.
are homogeneous.
10.3 Length—The length of the tubes shall not be less than
5.3 Tubes described by this specification shall be furnished
that specified, but may exceed the specified value by the
with unenhanced (plain) ends.
amounts given in Table 1.
5.4 Enhanced sections of the tube are normally supplied in
10.3.1 The length of plain ends, as measured from the tube
the “as finned” temper (cold worked condition produced by the
end to the first tool impression, shall not be less than that
enhancing operation). The unenhanced sections of the tube
specified, but may exceed the specified value by ⁄2 in. (12.7
shall be in the annealed condition and shall be suitable for
mm).
rolling-in operations.
6. Materials and Manufacture TABLE 1 Length Tolerances
Specified Length, ft (m) Tolerance, in. (mm)
6.1 The integrally enhanced (finned) tubes shall be manu-
factured from seamless, welded, or welded/cold worked plain Up to 24 (7.3), incl + ⁄8 (3.2)
Over 24 to 34 (7.3 to 10.4), incl + ⁄4(6.4)
tubes that conform to one of the following ASTM specifica-
Over 34 to 44 (10.4 to 13.4), incl + ⁄8(9.5)
tions: A 213/A 213M, A 249/A 249M, A 268/A 268M, A 269/
Over 44 (13.4) + ⁄2 (12.7) max
A 269M, A 688/A 688M, A 789/A 789M, A 803/A 803M.
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A 1012
10.3.2 The length of fin sections and lands (unenhanced enhanced and unenhanced areas is not less than the minimum
portions) shall be as specified 6 ⁄4 in. (6.35 mm). specified.
12.1.1.5 Tubes causing relevant signals because of injurious
10.4 Squareness of Cut—The angle of cut of the end of any
tube may depart from square by not more than 0.016 in. defects (incomplete welds, split
...

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ABSTRACT
This specification describes seamless and welded ferritic, austenitic and duplex alloy steel tubing on which the external or internal surface, or both, has been modified by a cold forming process to produce and integral enhanced surface for improved heat transfer. The integrally enhanced (finned) tubes shall be manufactured from seamless, welded, or welded/cold worked plain tubes that conform to the specified requirements. The tube shall conform to the requirements for tensile properties prescribed in the governing plain tube specification. Pneumatic tests, eddy-current tests, air underwater pressure tests, pressure differential tests, and hydrostatic tests shall be made in accordance with the requirements specified.
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1.1 This specification describes seamless and welded ferritic, austenitic and duplex alloy steel tubing on which the external or internal surface, or both, has been modified by a cold forming process to produce an integral enhanced surface for improved heat transfer. The tubes are used in surface condensers, evaporators, heat exchangers and similar heat transfer apparatus in unfinned end diameters up to and including 1 in. (25.4 mm). Boiler tubes are excluded.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.3 The following precautionary statement pertains to the test method portion only, Section 12, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

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ASTM
ASTM A1039/A1039M-20(Specification)
Standard Specification for Steel, Sheet, Hot Rolled, Carbon, Commercial, Structural, and High-Strength Low-Alloy, and Ultra-High Strength, Produced by Twin-Roll Casting Process

SCOPE
1.1 This specification covers commercial, structural, high-strength low-alloy, and ultra-high strength steel sheet in coils and cut lengths produced by the twin-roll casting process.  
1.2 The steel sheet is available in the designations listed in Section 4.  
1.3 The material is available in the following sizes:    
Thickness:  
0.027 to 0.078 in. [0.7 to 2.0 mm]  
Width:  
up to 79 in. [2000 mm]  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
Note 1: A description of the Twin-roll Casting Process is included in Appendix X1.  
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.

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ASTM
ASTM A370-24(Test Method)
Standard Test Methods and Definitions for Mechanical Testing of Steel Products

SIGNIFICANCE AND USE
4.1 The primary use of these test methods is testing to determine the specified mechanical properties of steel, stainless steel, and related alloy products for the evaluation of conformance of such products to a material specification under the jurisdiction of ASTM Committee A01 and its subcommittees as designated by a purchaser in a purchase order or contract.  
4.1.1 These test methods may be and are used by other ASTM Committees and other standards writing bodies for the purpose of conformance testing.  
4.1.2 The material condition at the time of testing, sampling frequency, specimen location and orientation, reporting requirements, and other test parameters are contained in the pertinent material specification or in a general requirement specification for the particular product form.  
4.1.3 Some material specifications require the use of additional test methods not described herein; in such cases, the required test method is described in that material specification or by reference to another appropriate test method standard.  
4.2 These test methods are also suitable to be used for testing of steel, stainless steel and related alloy materials for other purposes, such as incoming material acceptance testing by the purchaser or evaluation of components after service exposure.  
4.2.1 As with any mechanical testing, deviations from either specification limits or expected as-manufactured properties can occur for valid reasons besides deficiency of the original as-fabricated product. These reasons include, but are not limited to: subsequent service degradation from environmental exposure (for example, temperature, corrosion); static or cyclic service stress effects, mechanically-induced damage, material inhomogeneity, anisotropic structure, natural aging of select alloys, further processing not included in the specification, sampling limitations, and measuring equipment calibration uncertainty. There is statistical variation in all aspects of mechanical testin...
SCOPE
1.1 These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.  
1.2 The following mechanical tests are described:    
Sections  
Tension  
7 to 14  
Bend  
15  
Hardness  
16  
Brinell  
17  
Rockwell  
18  
Portable  
19  
Impact  
20 to 30  
Keywords  
32  
1.3 Annexes covering details peculiar to certain products are appended to these test methods as follows:    
Annex  
Bar Products  
Annex A1  
Tubular Products  
Annex A2  
Fasteners  
Annex A3  
Round Wire Products  
Annex A4  
Significance of Notched-Bar Impact Testing  
Annex A5  
Converting Percentage Elongation of Round Specimens to
Equivalents for Flat Specimens  
Annex A6    
Testing Multi-Wire Strand  
Annex A7  
Rounding of Test Data  
Annex A8  
Methods for Testing Steel Reinforcing Bars  
Annex A9  
Procedure for Use and Control of Heat-cycle Simulation  
Annex A10  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 When these test methods are referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 in. or 8 in. may be report...

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