ASTM B725-05(2014)e1
(Specification)Standard Specification for Welded Nickel (UNS N02200/UNS N02201) and Nickel Copper Alloy (UNS N04400) Pipe
Standard Specification for Welded Nickel (UNS N02200/UNS N02201) and Nickel Copper Alloy (UNS N04400) Pipe
ABSTRACT
This specification covers UNS N02200 nickel alloy and UNS N02201 and N04400 low carbon nickel alloy welded pipes intended for general corrosive service and for mechanical applications. Each pipe should either be welded and annealed or welded and stress relieved and made from the flat-rolled alloys by an automatic welding process without any filler metal additions. The pipes should also be cold worked after welding to ensure the development of optimum corrosion resistance in the weld area and base metal during the final heat treatment.
SCOPE
1.1 This specification covers nickel (UNS N02200) and low carbon nickel (UNS N02201 and UNS N04400) in the form of welded and annealed or welded and stress relieved pipe intended for general corrosive service and for mechanical applications.
1.2 This specification covers outside diameter and nominal wall pipe in Schedules 5S, 10S, and 40S through 30-in. nominal pipe size shown in ANSI B36.19 (see Table 1). Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification. (A) Schedules 5S and 10S wall thicknesses do not permit threading in accordance with ANSI B1.20.1.(B) These do not conform to ANSI B36.10.
1.3 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.
1.4 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
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´1
Designation:B725 −05 (Reapproved 2014)
Standard Specification for
Welded Nickel (UNS N02200/UNS N02201) and Nickel
Copper Alloy (UNS N04400) Pipe
This standard is issued under the fixed designation B725; 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.
ε NOTE—Table 4 was editorially corrected in December 2015.
1. Scope Determine Conformance with Specifications
E39 Methods for Chemical Analysis of Nickel (Withdrawn
1.1 This specification covers nickel (UNS N02200) and low
1995)
carbon nickel (UNS N02201 and UNS N04400) in the form of
E213 Practice for Ultrasonic Testing of Metal Pipe and
welded and annealed or welded and stress relieved pipe
Tubing
intended for general corrosive service and for mechanical
E571 PracticeforElectromagnetic(Eddy-Current)Examina-
applications.
tion of Nickel and Nickel Alloy Tubular Products
1.2 This specification covers outside diameter and nominal
2.2 ANSI Standards:
wall pipe in Schedules 5S, 10S, and 40S through 30-in.
B 1.20.1 Pipe Threads
nominal pipe size shown in ANSI B36.19 (see Table 1). Pipe
B 36.10 Welded and Seamless Wrought Steel Pipe
having other dimensions may be furnished provided such pipe
B 36.19 Stainless Steel Pipe
complies with all other requirements of this specification.
2.3 ASME Boiler and Pressure Vessel Code
1.3 The values stated in inch-pound units are to be regarded
Section IX Welding and Brazing Qualifications
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
3. Ordering Information
and are not considered standard.
3.1 Orders for material under this specification shall include
1.4 The following precautionary caveat pertains only to the
the following information:
test methods portion, Section 12, of this specification: This
3.1.1 Alloy name or UNS number,
standard does not purport to address all of the safety problems,
3.1.2 ASTM designation and date of issue,
if any, associated with its use. It is the responsibility of the user
3.1.3 Condition (temper) (Table 2),
of this standard to become familiar with all hazards including
3.1.4 Dimensions:
those identified in the appropriate Material Safety Data Sheet
3.1.4.1 Nominal pipe size or outside diameter and schedule
(MSDS) for this product/material as provided by the
number or nominal wall thickness (Table 1),
manufacturer, to establish appropriate safety and health
3.1.4.2 Length (specific or random),
practices, and determine the applicability of regulatory limi-
3.1.5 Quantity—feet or metres, or number of pieces,
tations prior to use.
3.1.6 Certification—State if certification is required (Sec-
tion 15),
2. Referenced Documents
3.1.7 Samples for Product (Check) Analysis—State whether
2.1 ASTM Standards:
samples for product (check) analysis should be furnished (9.2),
E8 Test Methods for Tension Testing of Metallic Materials
3.1.8 Purchaser Inspection—If the purchaser wishes to
E29 Practice for Using Significant Digits in Test Data to
witness tests or inspection of material at the place of
manufacture, the purchase order must so state indicating which
tests or inspections are to be witnessed (Section 13),
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 1, 2014. Published October 2014. Originally The last approved version of this historical standard is referenced on
approved in 1983. Last previous edition approved in 2009 as B725 – 05 (2009). www.astm.org.
DOI: 10.1520/B0725-05R14E01. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 4th Floor, New York, NY 10036, http://www.ansi.org.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Society of Mechanical Engineers (ASME), ASME
Standards volume information, refer to the standard’s Document Summary page on International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
the ASTM website. www.asme.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
B725−05 (2014)
TABLE 1 Dimensions of Welded Pipe
NOTE 1—The following table is a partial reprint of Table 1 of ANSI B36.19.
NOTE 2—The decimal thicknesses listed for the respective pipe size represent their nominal wall dimensions.
Nominal Wall Thickness
Outside
Nominal Schedule Schedule Schedule Schedule
Diameter
A A
Pipe Size, in. 5S 10S 40S 80S
in. mm in. mm in. mm in. mm in. mm
⁄8 0.405 10.29 . . 0.049 1.245 0.068 1.727 0.095 2.41
⁄4 0.540 13.72 . . 0.065 1.651 0.088 2.235 0.119 3.02
⁄8 0.675 17.15 . 0.065 1.651 0.091 2.311 0.126 3.20
⁄2 0.840 21.34 0.065 1.651 0.083 2.108 0.109 2.768 0.147 3.73
⁄4 1.050 26.67 0.065 1.651 0.083 2.108 0.113 2.870 0.154 3.91
1 1.315 33.40 0.065 1.651 0.109 2.768 0.133 3.378 0.179 4.55
1 ⁄4 1.660 42.16 0.065 1.651 0.109 2.768 0.140 3.556 0.191 4.85
1 ⁄2 1.900 48.26 0.065 1.651 0.109 2.768 0.145 3.683 0.200 5.08
2 2.375 60.33 0.065 1.651 0.109 2.768 0.154 3.912 0.218 5.54
2 ⁄2 2.875 73.03 0.083 2.108 0.120 3.048 0.203 5.156 0.276 7.01
3 3.500 88.90 0.083 2.108 0.120 3.048 0.216 5.486 0.300 7.62
3 ⁄2 4.000 101.6 0.083 2.108 0.120 3.048 0.226 5.740 0.318 8.08
4 4.500 114.3 0.083 2.108 0.120 3.048 0.237 6.020 0.337 8.56
5 5.563 141.30 0.109 2.77 0.134 3.40 0.258 6.55 0.375 9.52
6 6.625 168.28 0.109 2.77 0.134 3.40 0.280 7.11 0.432 10.97
8 8.625 219.08 0.109 2.77 0.148 3.76 0.322 8.18 0.500 12.70
B B
10 10.750 273.05 0.134 3.40 0.165 4.19 0.365 9.27 0.500 12.70
B B B B
12 12.750 323.85 0.156 3.96 0.180 4.57 0.375 9.52 0.500 12.70
B B
14 14.000 355.60 0.156 3.96 0.188 4.78 . . . . . .
B B
16 16.000 406.40 0.165 4.19 0.188 4.78 . . . .
B B
18 18.000 457.20 0.165 4.19 0.188 4.78 . . . .
B B
20 20.000 508.00 0.188 4.78 0.218 5.54 . . . .
B B
22 22.000 558.80 0.188 4.78 0.218 5.54 . . . .
24 24.000 609.60 0.218 5.54 0.250 6.35 . . . .
30 30.000 762.00 0.250 6.35 0.312 7.92 . . . .
A
Schedules 5S and 10S wall thicknesses do not permit threading in accordance with ANSI B1.20.1.
B
These do not conform to ANSI B36.10.
TABLE 2 Mechanical Properties of Pipe and Tube
Elongation in 2 in.
Tensile Strength, Yield Strength (0.2 % offset),
or 50 mm (or 4D),
min, psi (MPa) min, psi (MPa)
min, %
Condition and
Size
Low- Low- Low-
UNS UNS UNS
Nickel Carbon Nickel Carbon Nickel Carbon
N04400 N04400 N04400
Nickel Nickel Nickel
Annealed
5 in. (127 55 000 (380) 50 000 (345) 70 000 (480) 15 000 (105) 12 000 (80) 28 000 (195) 35 35 35
mm)
and under
outside
diameter
Over 5 in. 55 000 (380) 50 000 (345) 70 000 (480) 12 000 (80) 10 000 (70) 25 000 (170) 40 40 35
(127 mm)
in outside
diameter
Stress-relieved
All sizes 65 000 (450) 60 000 (415) 85 000 (585) 40 000 (275) 30 000 (205) 55 000 (380) 15 15 15
3.1.9 Nondestructive Tests (see 6.4)—Specify either Test quenttoweldingandpriortofinalheattreatment,thepipeshall
Category 1 or 2. IfTest Category 1 is required, specify if either be cold worked to assure that optimum corrosion resistance in
a hydrostatic, eddy-current or ultrasonic test is to apply. If Test the weld area and base metal will be developed during heat
Category 2 is required, specify if either an eddy-current or treatment.
ultrasonic test is to apply. See Section S1.
4.2 Pipe shall be furnished with a scale free finish. When
3.1.10 Supplementary Requirements.
bright annealing is used, descaling is not necessary.
4. Materials and Manufacture
5. Chemical Composition
4.1 Pipe shall be made from flat-rolled alloy by an auto- 5.1 The material shall conform to the requirements as to
matic welding process with no addition of filler metal. Subse- chemical composition prescribed in Table 3.
´1
B725−05 (2014)
TABLE 3 Chemical Requirements
Product (Check) Analysis
Composition, %
Variations, under min or
Element
Low-Carbon Nickel Nickel-Copper
over max, of the Specified
Nickel (UNS N02200)
(UNS N02201) (UNS N04400)
Limit of Element
Nickel, min 99.0 99.0 63.0 0.60
Copper, max 0.25 0.25 28.0–34.0 0.03
Iron, max 0.40 0.40 2.5 0.03
Manganese, max 0.35 0.35 2.0 0.03
Carbon, max 0.15 . 0.3 0.01
Carbon, max . 0.02 . 0.005
Silicon, max 0.35 0.35 0.5 0.03
Sulfur, max 0.01 0.01 0.024 0.003
5.2 If a product (check) analysis is performed by the without further test, providing the imperfection does not
purchaser, the material shall conform to the product (check) encroach on the minimum wall thickness.
analysis variations in Table 3.
7. Dimensions and Permissible Variations
6. Mechanical Properties and Other Requirements
7.1 The outside diameter shall not exceed the permissible
variations prescribed in Table 4.
6.1 Mechanical Properties—The material shall conform to
the requirements for mechanical properties prescribed in Table
TABLE 4 Permissible Variations in Outside Diameter
2.
Permissible Variations in Outside Diameter
6.2 Flattening Test Requirements—Flattening test speci-
NPS Designator Over Under
mens made in accordance with 12.3 shall show no cracks or
in. mm in. mm
breaks on the inside, outside, or end surfaces.
1 1 1 1
⁄8 to 1 ⁄2, incl ⁄64 (0.015) 0.4 ⁄32 (0.031) 0.8
1 1 1
6.3 Transverse Guided Bend Test—See 12.6.3 for accep-
Over 1 ⁄2 to 4, incl ⁄32 (0.031) 0.8 ⁄32 (0.031) 0.8
1 1
Over 4 to 8, incl ⁄16 (0.062) 1.6 ⁄32 (0.031) 0.8
tance criteria.
3 1
Over 8 to 18,† incl ⁄32 (0.093) 2.4 ⁄32 (0.031) 0.8
1 1
Over 18 to 26, incl ⁄8 (0.125) 3.2 ⁄32 (0.031) 0.8
6.4 Nondestructive Tests:
5 1
Over 26 to 34, incl ⁄32 (0.156) 4.0 ⁄32 (0.031) 0.8
6.4.1 Pipe shall be subjected to the nondestructive tests
3 1
Over 34 to 48, incl ⁄16 (0.187) 4.8 ⁄32 (0.031) 0.8
outlined in the following test categories.
†Editorially corrected.
6.4.1.1 Category 1—Hydrostatic, eddy-current, or ultra-
sonic test at the manufacturer’s option unless the purchaser
specifies in accordance with 3.1.9.
7.1.1 Pipe having a specified wall thickness that is 3 % or
6.4.1.2 Category 2—Hydrostatic plus eddy-current or ultra- less of the outside diameter cannot be straightened properly
sonic test at the manufacturer’s option unless the purchaser
without a certain amount of ovality resulting in the diameter.
specifies in accordance with 3.1.9. The limits to this ovality are stated in Footnote B of Table 4.
6.4.1.3 The manufacturer shall have the option to use Test
7.2 The wall thickness shall not vary from nominal by more
Category 1 or 2 if the purchaser does not specify the test
than 612 ⁄2 %.
category options in accordance with 3.1.9.
7.3 Straightness—Material shall be reasonably straight and
6.4.2 Hydrostatic Test—When tested in accordance with the
free of bends or kinks.
requirements of 12.4, any pipe that leaks shall be rejected.Any
leaking area may be cut out and the pipe retested.
7.4 Length—Variations from the specified length shall not
6.4.3 Acceptance and Rejection—Pipe producing a signal
exceed the amounts prescribed in Table 5.
equal to or greater than the calibration imperfection shall be
A
subject to rejection.
TABLE 5 Permissible Variations in Length
6.4.3.1 Test signals produced by imperfections that cannot
Outside Diameter, in. Cut Length, in. (mm)
(mm) Over Under
be identified or produced by cracks or crack-like imperfections
Under 2 (50.8) ⁄8 (3.18) 0
shall result in rejection of the pipe subject to rework and retest.
2 (50.8) and over ⁄16 (4.75) 0
To be accepted, the pipe must pass the same electric test to
A
These permissible variations in length apply to pipe before bending. They apply
whichitwasoriginallysubjectedprovidedthatthedimensional
tocutlengthsuptoandincluding24ft(7.3m).Forlengthsover24ft,anadditional
requirements are met. over-tolerance of ⁄8 in. (3.18 mm) for each 10 ft (3.0 m) or fraction thereof shall be
permissible up to a maximum additional over-tolerance of ⁄2 in. (12.7 mm).
6.4.3.2 If the imperfection is judged as injurious, the pipe
shall be rejected but may be reconditioned and retested
providing the dimensional requirements are met. To be
8. Workmanship, Finish, and Appearance
accepted, retested pipe shall meet the original electric test
requirements. 8.1 The material shall be uniform in quality and temper,
6.4.3.3 If the imperfection is explored to the extent that it smooth, commercially straight, and free of injurious imperfec-
can be identified as noninjurious, the pipe may be accepted tions.
´1
B725−05 (2014)
9. Sampling 12.3 Flattening Test—Pipe shall be capable of withstanding,
without cracking, flattening under a load applied gradually at
9.1 Lots of Chemical Analysis and Mechanical Testing.
room temperature until the distance between the platens is five
9.1.1 A lot for chemical analysis shall consist of one heat.
times the wall thickness. The weld shall be positioned 90 %
9.1.2 A lot for mechanical properties and flattening or
from the direction of the applied flattening force.
transverseguidedbendtestingshallconsistofallmaterialfrom
the same heat, nominal size (excepting length), and condition 12.4 Hydrostatic Test—Each pipe shall be tested at a pres-
(temper).
sure calculated by the following equation:
9.2 Test Material Selection. P 5 2St/D (1)
9.2.1 Chemical Analysis—Representative samples shall be
where:
taken during pouring or subsequent processing.
P = hydrostatic test pressure, psi (or MPa),
9.2.1.1 Product (check) analysis shall be wholly the respon-
t = specified wall thickness, in. (or mm),
sibility of the purchaser.
D = specified outside diameter, in. (or mm), and
9.2.2 Mechanical Properties and Flattening Testing—
S = allowable fiber stress for material in the condition
Samples of the material to provide test specimens shall be
furnished, as follows:
taken from such locations in each lot as to be representative of
Nickel-Copper
that lot.
Low Carbon (Allowable
Nickel Nickel Fiber Stress)
Annealed
10. Number of Tests
5 in. (127 mm) outside 10 000 psi 8000 psi 17 500 psi
diameter and under (70 MPa) (55 MPa) (120 MPa)
10.1 Chemical Analysis—One test per lot.
Over 5 in. outside 8000 psi 6700 psi 16 700 psi
10.2 Mechanical Properties—One test per lot.
diameter (55 MPa) (45 MPa) (115 MPa)
10.3 Flattening or Transverse Guided Bend Test—One test
Nickel-Copper
Low Carbon (Allowable
per lot.
Nickel Ni
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
´1
Designation: B725 − 05 (Reapproved 2014) B725 − 05 (Reapproved 2014)
Standard Specification for
Welded Nickel (UNS N02200/UNS N02201) and Nickel
Copper Alloy (UNS N04400) Pipe
This standard is issued under the fixed designation B725; 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.
ε NOTE—Table 4 was editorially corrected in December 2015.
1. Scope
1.1 This specification covers nickel (UNS N02200) and low carbon nickel (UNS N02201 and UNS N04400) in the form of
welded and annealed or welded and stress relieved pipe intended for general corrosive service and for mechanical applications.
1.2 This specification covers outside diameter and nominal wall pipe in Schedules 5S, 10S, and 40S through 30-in. nominal pipe
size shown in ANSI B36.19 (see Table 1). Pipe having other dimensions may be furnished provided such pipe complies with all
other requirements of this specification.
1.3 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.
1.4 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: This standard
does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this
standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for
this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the
applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E39 Methods for Chemical Analysis of Nickel (Withdrawn 1995)
E213 Practice for Ultrasonic Testing of Metal Pipe and Tubing
E571 Practice for Electromagnetic (Eddy-Current) Examination of Nickel and Nickel Alloy Tubular Products
2.2 ANSI Standards:
B 1.20.1 Pipe Threads
B 36.10 Welded and Seamless Wrought Steel Pipe
B 36.19 Stainless Steel Pipe
2.3 ASME Boiler and Pressure Vessel Code
Section IX Welding and Brazing Qualifications
3. Ordering Information
3.1 Orders for material under this specification shall include the following information:
3.1.1 Alloy name or UNS number,
This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07 on Refined
Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 1, 2014. Published October 2014. Originally approved in 1983. Last previous edition approved in 2009 as B725 – 05 (2009). DOI:
10.1520/B0725-05R14.10.1520/B0725-05R14E01.
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.
The last approved version of this historical standard is referenced on www.astm.org.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
B725 − 05 (2014)
TABLE 1 Dimensions of Welded Pipe
NOTE 1—The following table is a partial reprint of Table 1 of ANSI B36.19.
NOTE 2—The decimal thicknesses listed for the respective pipe size represent their nominal wall dimensions.
Nominal Wall Thickness
Outside
Nominal Schedule Schedule Schedule Schedule
Diameter
A A
Pipe Size, in. 5S 10S 40S 80S
in. mm in. mm in. mm in. mm in. mm
⁄8 0.405 10.29 . . 0.049 1.245 0.068 1.727 0.095 2.41
⁄4 0.540 13.72 . . 0.065 1.651 0.088 2.235 0.119 3.02
⁄8 0.675 17.15 . 0.065 1.651 0.091 2.311 0.126 3.20
⁄2 0.840 21.34 0.065 1.651 0.083 2.108 0.109 2.768 0.147 3.73
⁄4 1.050 26.67 0.065 1.651 0.083 2.108 0.113 2.870 0.154 3.91
1 1.315 33.40 0.065 1.651 0.109 2.768 0.133 3.378 0.179 4.55
1 ⁄4 1.660 42.16 0.065 1.651 0.109 2.768 0.140 3.556 0.191 4.85
1 ⁄2 1.900 48.26 0.065 1.651 0.109 2.768 0.145 3.683 0.200 5.08
2 2.375 60.33 0.065 1.651 0.109 2.768 0.154 3.912 0.218 5.54
2 ⁄2 2.875 73.03 0.083 2.108 0.120 3.048 0.203 5.156 0.276 7.01
3 3.500 88.90 0.083 2.108 0.120 3.048 0.216 5.486 0.300 7.62
3 ⁄2 4.000 101.6 0.083 2.108 0.120 3.048 0.226 5.740 0.318 8.08
4 4.500 114.3 0.083 2.108 0.120 3.048 0.237 6.020 0.337 8.56
5 5.563 141.30 0.109 2.77 0.134 3.40 0.258 6.55 0.375 9.52
6 6.625 168.28 0.109 2.77 0.134 3.40 0.280 7.11 0.432 10.97
8 8.625 219.08 0.109 2.77 0.148 3.76 0.322 8.18 0.500 12.70
B B
10 10.750 273.05 0.134 3.40 0.165 4.19 0.365 9.27 0.500 12.70
B B B B
12 12.750 323.85 0.156 3.96 0.180 4.57 0.375 9.52 0.500 12.70
B B
14 14.000 355.60 0.156 3.96 0.188 4.78 . . . . . .
B B
16 16.000 406.40 0.165 4.19 0.188 4.78 . . . .
B B
18 18.000 457.20 0.165 4.19 0.188 4.78 . . . .
B B
20 20.000 508.00 0.188 4.78 0.218 5.54 . . . .
B B
22 22.000 558.80 0.188 4.78 0.218 5.54 . . . .
24 24.000 609.60 0.218 5.54 0.250 6.35 . . . .
30 30.000 762.00 0.250 6.35 0.312 7.92 . . . .
A
Schedules 5S and 10S wall thicknesses do not permit threading in accordance with ANSI B1.20.1.
B
These do not conform to ANSI B36.10.
3.1.2 ASTM designation and date of issue,
3.1.3 Condition (temper) (Table 2),
3.1.4 Dimensions:
3.1.4.1 Nominal pipe size or outside diameter and schedule number or nominal wall thickness (Table 1),
3.1.4.2 Length (specific or random),
3.1.5 Quantity—feet or metres, or number of pieces,
3.1.6 Certification—State if certification is required (Section 15),
TABLE 2 Mechanical Properties of Pipe and Tube
Elongation in 2 in.
Tensile Strength, Yield Strength (0.2 % offset),
or 50 mm (or 4D),
min, psi (MPa) min, psi (MPa)
min, %
Condition and
Size
Low- Low- Low-
UNS UNS UNS
Nickel Carbon Nickel Carbon Nickel Carbon
N04400 N04400 N04400
Nickel Nickel Nickel
Annealed
5 in. (127 55 000 (380) 50 000 (345) 70 000 (480) 15 000 (105) 12 000 (80) 28 000 (195) 35 35 35
mm)
and under
outside
di-
ameter
5 in. (127 55 000 (380) 50 000 (345) 70 000 (480) 15 000 (105) 12 000 (80) 28 000 (195) 35 35 35
mm)
and under
outside
diameter
Over 5 in. 55 000 (380) 50 000 (345) 70 000 (480) 12 000 (80) 10 000 (70) 25 000 (170) 40 40 35
(127 mm)
in outside
diameter
Stress-relieved
All sizes 65 000 (450) 60 000 (415) 85 000 (585) 40 000 (275) 30 000 (205) 55 000 (380) 15 15 15
´1
B725 − 05 (2014)
3.1.7 Samples for Product (Check) Analysis—State whether samples for product (check) analysis should be furnished (9.2),
3.1.8 Purchaser Inspection—If the purchaser wishes to witness tests or inspection of material at the place of manufacture, the
purchase order must so state indicating which tests or inspections are to be witnessed (Section 13),
3.1.9 Nondestructive Tests (see 6.4)—Specify either Test Category 1 or 2. If Test Category 1 is required, specify if either a
hydrostatic, eddy-current or ultrasonic test is to apply. If Test Category 2 is required, specify if either an eddy-current or ultrasonic
test is to apply. See Section S1.
3.1.10 Supplementary Requirements.
4. Materials and Manufacture
4.1 Pipe shall be made from flat-rolled alloy by an automatic welding process with no addition of filler metal. Subsequent to
welding and prior to final heat treatment, the pipe shall be cold worked to assure that optimum corrosion resistance in the weld
area and base metal will be developed during heat treatment.
4.2 Pipe shall be furnished with a scale free finish. When bright annealing is used, descaling is not necessary.
5. Chemical Composition
5.1 The material shall conform to the requirements as to chemical composition prescribed in Table 3.
5.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysis
variations in Table 3.
6. Mechanical Properties and Other Requirements
6.1 Mechanical Properties—The material shall conform to the requirements for mechanical properties prescribed in Table 2.
6.2 Flattening Test Requirements—Flattening test specimens made in accordance with 12.3 shall show no cracks or breaks on
the inside, outside, or end surfaces.
6.3 Transverse Guided Bend Test—See 12.6.3 for acceptance criteria.
6.4 Nondestructive Tests:
6.4.1 Pipe shall be subjected to the nondestructive tests outlined in the following test categories.
6.4.1.1 Category 1—Hydrostatic, eddy-current, or ultrasonic test at the manufacturer’s option unless the purchaser specifies in
accordance with 3.1.9.
6.4.1.2 Category 2—Hydrostatic plus eddy-current or ultrasonic test at the manufacturer’s option unless the purchaser specifies
in accordance with 3.1.9.
6.4.1.3 The manufacturer shall have the option to use Test Category 1 or 2 if the purchaser does not specify the test category
options in accordance with 3.1.9.
6.4.2 Hydrostatic Test—When tested in accordance with the requirements of 12.4, any pipe that leaks shall be rejected. Any
leaking area may be cut out and the pipe retested.
6.4.3 Acceptance and Rejection—Pipe producing a signal equal to or greater than the calibration imperfection shall be subject
to rejection.
6.4.3.1 Test signals produced by imperfections that cannot be identified or produced by cracks or crack-like imperfections shall
result in rejection of the pipe subject to rework and retest. To be accepted, the pipe must pass the same electric test to which it
was originally subjected provided that the dimensional requirements are met.
6.4.3.2 If the imperfection is judged as injurious, the pipe shall be rejected but may be reconditioned and retested providing the
dimensional requirements are met. To be accepted, retested pipe shall meet the original electric test requirements.
6.4.3.3 If the imperfection is explored to the extent that it can be identified as noninjurious, the pipe may be accepted without
further test, providing the imperfection does not encroach on the minimum wall thickness.
TABLE 3 Chemical Requirements
Product (Check) Analysis
Composition, %
Variations, under min or
Element
Low-Carbon Nickel Nickel-Copper
over max, of the Specified
Nickel (UNS N02200)
(UNS N02201) (UNS N04400)
Limit of Element
Nickel, min 99.0 99.0 63.0 0.60
Copper, max 0.25 0.25 28.0–34.0 0.03
Iron, max 0.40 0.40 2.5 0.03
Manganese, max 0.35 0.35 2.0 0.03
Carbon, max 0.15 . 0.3 0.01
Carbon, max . 0.02 . 0.005
Silicon, max 0.35 0.35 0.5 0.03
Sulfur, max 0.01 0.01 0.024 0.003
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B725 − 05 (2014)
7. Dimensions and Permissible Variations
7.1 The outside diameter shall not exceed the permissible variations prescribed in Table 4.
TABLE 4 Permissible Variations in Outside Diameter
Permissible Variations in Outside Diameter
NPS Designator Over Under
in. mm in. mm
1 1 1 1
⁄8 to 1 ⁄2, incl ⁄64 (0.015) 0.4 ⁄32 (0.031) 0.8
1 1 1
Over 1 ⁄2 to 4, incl ⁄32 (0.031) 0.8 ⁄32 (0.031) 0.8
1 1
Over 4 to 8, incl ⁄16 (0.062) 1.6 ⁄32 (0.031) 0.8
3 1
Over 8 to 12, incl ⁄32 (0.093) 2.4 ⁄32 (0.031) 0.8
3 1
Over 8 to 18,† incl ⁄32 (0.093) 2.4 ⁄32 (0.031) 0.8
1 1
Over 18 to 26, incl ⁄8 (0.125) 3.2 ⁄32 (0.031) 0.8
5 1
Over 26 to 34, incl ⁄32 (0.156) 4.0 ⁄32 (0.031) 0.8
3 1
Over 34 to 48, incl ⁄16 (0.187) 4.8 ⁄32 (0.031) 0.8
†Editorially corrected.
7.1.1 Pipe having a specified wall thickness that is 3 % or less of the outside diameter cannot be straightened properly without
a certain amount of ovality resulting in the diameter. The limits to this ovality are stated in Footnote B of Table 4.
7.2 The wall thickness shall not vary from nominal by more than 612 ⁄2 %.
7.3 Straightness—Material shall be reasonably straight and free of bends or kinks.
7.4 Length—Variations from the specified length shall not exceed the amounts prescribed in Table 5.
A
TABLE 5 Permissible Variations in Length
Outside Diameter, in. Cut Length, in. (mm)
(mm) Over Under
Under 2 (50.8) ⁄8 (3.18) 0
2 (50.8) and over ⁄16 (4.75) 0
A
These permissible variations in length apply to pipe before bending. They apply
to cut lengths up to and including 24 ft (7.3 m). For lengths over 24 ft, an additional
over-tolerance of ⁄8 in. (3.18 mm) for each 10 ft (3.0 m) or fraction thereof shall be
permissible up to a maximum additional over-tolerance of ⁄2 in. (12.7 mm).
8. Workmanship, Finish, and Appearance
8.1 The material shall be uniform in quality and temper, smooth, commercially straight, and free of injurious imperfections.
9. Sampling
9.1 Lots of Chemical Analysis and Mechanical Testing.
9.1.1 A lot for chemical analysis shall consist of one heat.
9.1.2 A lot for mechanical properties and flattening or transverse guided bend testing shall consist of all material from the same
heat, nominal size (excepting length), and condition (temper).
9.2 Test Material Selection.
9.2.1 Chemical Analysis—Representative samples shall be taken during pouring or subsequent processing.
9.2.1.1 Product (check) analysis shall be wholly the responsibility of the purchaser.
9.2.2 Mechanical Properties and Flattening Testing—Samples of the material to provide test specimens shall be taken from such
locations in each lot as to be representative of that lot.
10. Number of Tests
10.1 Chemical Analysis—One test per lot.
10.2 Mechanical Properties—One test per lot.
10.3 Flattening or Transverse Guided Bend Test—One test per lot.
10.4 Nondestructive—Each piece in each lot.
11. Specimen Preparation
11.1 Tension test specimens shall be taken from material in the final condition (temper) and tested in the direction of fabrication.
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B725 − 05 (2014)
11.1.1 Whenever possible, all pipe shall be tested in full-tubular size. When testing in full-tubular size
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