ASTM B730-08

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Designation:B730 −08
StandardSpecification for
Welded Nickel (UNS N02200/UNS N02201) and Nickel
1
Copper Alloy (UNS N04400) Tube
This standard is issued under the fixed designation B730; 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.
NOTE 1—Tube produced to outside diameter and minimum wall
1. Scope
thicknessmaybefurnisheduponagreementbetweenthemanufacturerand
1.1 This specification covers nickel (UNS N02200), low-
the purchaser.
carbon nickel (UNS N02201), and nickel copper alloy (UNS
3.1.4.2 Length (specific or random).
N04400) in the form of welded and annealed or welded and
3.1.5 Quantity (feet or metres, or number of pieces).
stress-relieved tube intended for general corrosive service and
3.1.6 Certification—State if certification is required.
for mechanical applications.
3.1.7 Samples for Product (Check) Analysis—State whether
1.2 The values stated in inch-pound units are to be regarded
samples for product (check) analysis should be furnished.
as standard. The values given in parentheses are mathematical
3.1.8 Purchaser Inspection—If the purchaser wishes to
conversions to SI units that are provided for information only
witness tests or inspection of material at the place of
and are not considered standard.
manufacture, the purchase order must so state indicating which
tests or inspections are to be witnessed.
1.3 This standard does not purport to address all of the
3.1.9 Nondestructive Tests—Specify either Test Category 1
safety concerns, if any, associated with its use. It is the
or 2. If Test Category 1 is required, specify if either a
responsibility of the user of this standard to become familiar
hydrostatic, eddy-current or ultrasonic test is to apply. If Test
with all hazards including those identified in the appropriate
Category 2 is required, specify which two tests are required.
Material Safety Data Sheet (MSDS) for this product/material
3.1.10 Supplementary Requirements.
as provided by the manufacturer, to establish appropriate
safety and health practices, and determine the applicability of
4. Materials and Manufacture
regulatory limitations prior to use.
4.1 Tubes shall be made from flat-rolled material by an
2. Referenced Documents
automatic welding process with no addition of filler metal.
2
2.1 ASTM Standards: Subsequent to welding, and prior to heat treatment, the tubes
shall be cold worked to assure that optimum corrosion resis-
B751 Specification for General Requirements for Nickel and
Nickel Alloy Welded Tube tance in the weld area and base metal will be developed during
heat treatment.
3. Ordering Information
4.2 Tubes shall be furnished with a scale-free finish. When
3.1 Orders for material under this specification shall include
bright annealing is used, descaling is not necessary.
the following information:
3.1.1 Alloy name or UNS number.
5. Chemical Requirements
3.1.2 ASTM designation and year of issue.
5.1 The material shall conform to the requirements as to
3.1.3 Condition (Temper) (Table 1).
chemical composition prescribed in Table 2.
3.1.4 Dimensions:
3.1.4.1 Outside diameter and nominal wall thickness.
6. Mechanical and Other Requirements
6.1 Mechanical Properties—The material shall conform to
1
This specification is under the jurisdiction of ASTM Committee B02 on the requirements for mechanical properties prescribed in Table
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
1.
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved April 1, 2008. Published April 2008. Originally 6.2 Flattening Test—One test per lot.
approved in 1984. Last previous edition approved in 1993 as B730 - 93 which was
6.3 Flange Test—One test per lot.
withdrawn May 2002 and reinstated in April 2008. DOI: 10.1520/B0730-08.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.4 Nondestructive Tests:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.4.1 Tubes shall be subjected to the nondestructive tests
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. outlined in the following test categories:
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B730−08
TABLE 1 Mechanical Properties of Tube
Elongation in 2 in.
Tensile Strength, Yield Strength (0.2 % offset),
or 50 min (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 Ni
...