ASTM A943/A943M-01(2005)

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Designation: A943/A943M – 01 (Reapproved 2005)
Standard Specification for
Spray-Formed Seamless Austenitic Stainless Steel Pipes
This standard is issued under the fixed designationA943/A943M; 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.
1. Scope A450/A450M Specification for General Requirements for
Carbon and Low Alloy Steel Tubes
1.1 This specification covers spray-formed seamless auste-
A941 Terminology Relating to Steel, Stainless Steel, Re-
nitic stainless steel pipe intended for high-temperature and
lated Alloys, and Ferroalloys
general corrosive service.
A999/A999M Specification for General Requirements for
1.2 Grades TP304H, TP309H, TP309HCb, TP310H,
Alloy and Stainless Steel Pipe
TP310HCb, TP316H, TP321H, TP347H, and TP348H are
E112 Test Methods for Determining Average Grain Size
modifications of Grades TP304, TP309Cb, TP309S, TP310Cb,
E381 Method of Macroetch Testing Steel Bars, Billets,
TP310S, TP316, TP321, TP347, and TP348, and are intended
Blooms, and Forgings
for high-temperature service.
E527 Practice for Numbering Metals and Alloys in the
1.3 Optional supplementary requirements are provided for
Unified Numbering System (UNS)
pipe where a greater degree of testing is desired. These
2.2 ANSI/ASME Standards:
supplementaryrequirementscallforadditionalteststobemade
B1.20.1 Pipe Threads, General Purpose
and,whendesired,oneormoreofthesemaybespecifiedinthe
B36.10 Welded and Seamless Wrought Steel Pipe
order.
B36.19 Stainless Steel Pipe
1.4 Appendix X1 lists the dimensions of seamless stainless
2.3 Other Standard:
steel pipe as shown in ANSI B36.19. Pipe having other
SAE J1086 Practice for Numbering Metals and Alloys
dimensions may be furnished provided such pipe complies
(UNS)
with all other requirements of this specification.
1.5 The values stated in either inch-pound units or SI units
3. Terminology
are to be regarded separately as standard. Within the text, the
3.1 For definitions of terms used in this specification, refer
SI units are shown in brackets. The values stated in each
to Terminology A941.
system are not exact equivalents; therefore, each system must
3.2 Definitions of Terms Specific to This Standard:
be used independently of the other. Combining values from the
3.2.1 spray–formed—denotes the fabrication of different
two systems may result in nonconformance with the specifi-
shapes of a metallic material by deposition of a spray,
cation. The inch-pound units shall apply unless the “M”
consisting of droplets, solid particles, and particles that are
designation of this specification is specified in the order.
partially solid, onto a moving substrate.
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
3.2.1.1 Discussion—The spray is produced by gas atomiza-
been substituted in this standard for such traditional terms as “nominal
tion of the liquid metal or alloy. On impingement with the
diameter,” “size,” and “nominal size.”
substrate, the species of the spray consolidate and solidify
completely to produce a product that is essentially free of
2. Referenced Documents
porosity. The metallurgical characteristics of the spray-formed
2.1 ASTM Standards:
productarecontrolledprimarilybythethermalconditionofthe
A262 Practices for Detecting Susceptibility to Intergranular
spray, and that of the surface of the metallic deposit formed on
Attack in Austenitic Stainless Steels
the substrate.
4. Ordering Information
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
4.1 Orders for material to this specification should include
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
the following, as required, to describe the desired material
A01.10 on Stainless and Alloy Steel Tubular Products.
adequately:
Current edition approved Sept. 1, 2005. Published October 2005. Originally
approved in 1995. Last previous edition approved in 2001 as A943/A943M – 01.
DOI: 10.1520/A0943_A0943M-01R05.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036.
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A943/A943M – 01 (2005)
4.1.1 Quantity (feet, centimetres, or number of lengths), 4.1.6 End finish (Section on Ends of Specification A999/
4.1.2 Name of material (austenitic steel pipe), A999M),
4.1.3 Grade (Table 1), 4.1.7 Optional requirements (Section 8),
4.1.4 Size(NPSoroutsidediameterandschedulenumberor 4.1.8 Test report required (Certification Section of Specifi-
average wall thickness or other), cation A999/A999M),
4.1.5 Length (specific or random) (Section 11), 4.1.9 Specification number, and
TABLE 1 Chemical Requirements
Grade UNS Composition, % Columbium Composition, %
Designa- plus
C
Carbon, Manga-Phospho- Sulfur, Silicon, Nickel Chromium Molyb- Titanium Tantalum, Nitrogen Vanadium Copper Cerium
A
tion Tantalum
B B
max nese, rus, max max denum max
B
max max
TP304 S30400 0.08 2.00 0.045 0.030 0.75 8.0–11.0 18.0–20.0 . . . . . . . . . . . . . . . . . . . . . . . .
TP304H S30409 0.04–0.10 2.00 0.045 0.030 0.75 8.0–11.0 18.0–20.0 . . . . . . . . . . . . . . . . . . . . . . . .
TP304L S30403 0.030 2.00 0.045 0.030 0.75 8.0–13.0 18.0–20.0 . . . . . . . . . . . . . . . . . . . . . . . .
TP304N S30451 0.08 2.00 0.045 0.030 0.75 8.0–11.0 18.0–20.0 . . . . . . . . . . . . 0.10–0.16 . . . . . . . . .
TP304LN S30453 0.030 2.00 0.045 0.030 0.75 8.0–11.0 18.0–20.0 . . . . . . . . . . . . 0.10–0.16 . . . . . . . . .
TP309Cb S30940 0.08 2.00 0.045 0.030 0.75 12.0–16.0 22.0–24.0 0.75 max . . . 10 3 C . . . . .
min
1.10
max
TP309H S30909 0.04–0.10 2.00 0.045 0.030 0.75 12.0–15.0 22.0–24.0 . . . . . . . . . . . . . . . . . . . . . . . .
TP309HCb S30941 0.04–0.10 2.00 0.045 0.030 0.75 12.0–16.0 22.0–24.0 0.75 max . . . 10 3 C . . . . .
min
1.10
max
TP309S S30908 0.08 2.00 0.045 0.030 0.75 12.0–15.0 22.0–24.0 0.75 max . . . . . . . . . . . . . . . . . . . . .
TP310Cb S31040 0.08 2.00 0.045 0.030 0.75 19.0–22.0 24.0–26.0 0.75 max . . . 10 3 C . . . . .
min
1.10
max
TP310H S31009 0.04–0.10 2.00 0.045 0.030 0.75 19.0–22.0 24.0–26.0 . . . . . . . . . . . . . . . . . . . . . . . .
TP310HCb S31041 0.04–0.10 2.00 0.045 0.030 0.75 19.0–22.0 24.0–26.0 0.75 max . . . 10 3 C . . . . .
min
1.10
max
TP310S S31008 0.08 2.00 0.045 0.030 0.75 19.0–22.0 24.0–26.0 0.75 max . . . . . . . . . . . . . . . . . . . . .
D
. . . S31272 0.08–0.121.50–2.00 0.030 0.015 0.3–0.7 14.0–16.0 14.0–16.0 1.00–1.0 0.3–0.6 . . . . . . . . . . . . . . . . . .
TP316 S31600 0.08 2.00 0.045 0.030 0.75 11.0–14.0 16.0–18.0 2.00–3.00 . . . . . . . . . . . . . . . . . . . . .
TP316H S31609 0.04–0.10 2.00 0.045 0.030 0.75 11.0–14.0 16.0–18.0 2.00–3.00 . . . . . . . . . . . . . . . . . . . . .
TP316L S31603 0.030 2.00 0.045 0.030 0.75 10.0–15.0 16.0–18.0 2.00–3.00 . . . . . . . . . . . . . . . . . . . . .
TP316N S31651 0.08 2.00 0.045 0.030 0.75 11.0–14.0 16.0–18.0 2.00–3.00 . . . . . . . . . 0.10–0.16 . . . . . . . . .
TP316LN S31653 0.030 2.00 0.045 0.030 0.75 11.0–14.0 16.0–18.0 2.00–3.00 . . . . . . . . . 0.10–0.16 . . . . . . . . .
TP317 S31700 0.08 2.00 0.045 0.030 0.75 11.0–14.0 18.0–20.0 3.0–4.0 . . . . . . . . . . . . . . . . . . . . .
TP317L S31703 0.030 2.00 0.045 0.030 0.75 11.0–15.0 18.0–20.0 3.0–4.0 . . . . . . . . . . . . . . . . . . . . .
E
TP321 S32100 0.08 2.00 0.045 0.030 0.75 9.0–13.0 17.0–19.0 . . . . . . . . .
F
TP321H S32109 0.04–0.10 2.00 0.045 0.030 0.75 9.0–13.0 17.0–19.0 . . . . . . . . .
G
TP347 S34700 0.08 2.00 0.045 0.030 0.75 9.0–13.0 17.0–19.0 . . . . . . . . . . .
H
TP347H S34709 0.04–0.10 2.00 0.045 0.030 0.75 9.0–13.0 17.0–19.0 . . . . . . . . . . .
G
TP348 S34800 0.08 2.00 0.045 0.030 0.75 9.0–13.0 17.0–19.0 . . . . . . 0.10 . . . .
H
TP348H S34809 0.04–0.10 2.00 0.045 0.030 0.75 9.0–13.0 17.0–19.0 . . . . . . 0.10 . . . .
TPXM-10 S21900 0.08 8.0–10.0 0.045 0.030 1.00 5.5–7.5 19.0–21.5 . . . . . . . . . . . . 0.15–0.40 . . . . . . . . .
TPXM-11 S21903 0.04 8.0–10.0 0.045 0.030 1.00 5.50–7.5 19.0–21.5 . . . . . . . . . . . . 0.15–0.40 . . . . . . . . .
TPXM-15 S38100 0.08 2.00 0.030 0.030 1.50–2.50 17.5–18.5 17.0–19.0 . . . . . . . . . . . . . . . . . . . . . . . .
TPXM-19 S20910 0.06 4.0–6.0 0.045 0.030 1.00 11.5–13.5 20.5–23.5 1.50–3.00 . . . 0.10–0.30 . . . 0.20–0.40 0.10–0.30 . . . . . .
TPXM-29 S24000 0.08 11.5–14.5 0.060 0.030 1.00 2.2–3.7 17.0–19.0 . . . . . . . . . . . . 0.20–0.40 . . . . . . . . .
. . . S31254 0.020 1.00 0.030 0.010 0.80 17.5–18.5 19.5–20.5 6.0–6.5 . . . . . . . . . 0.18–0.22 . . . 0.50–1.00 . . .
. . . S30815 0.05–0.10 0.80 0.040 0.030 1.40–2.00 10.0–12.0 20.0–22.0 . . . . . . . . . . . . 0.14–0.20 . . . . . . 0.03–0.08
. . . S31050 0.030 2.00 0.020 0.015 0.4 20.5–23.5 24.0–26.0 1.0–2.0 . . . . . . . . . 0.09–0.15 . . . . . . . . .
. . . S30600 0.018 2.00 0.02 0.02 3.7–4.3 14.0–15.5 17.0–18.5 0.20 max . . . . . . . . . . . . . . . 0.50 max . . .
. . . S31725 0.030 2.00 0.045 0.030 0.75 13.5–17.5 18.0–20.0 4.0–5.0 . . . . . . . . . 0.10 max . . . 0.75 max . . .
. . . S31726 0.030 2.00 0.045 0.030 0.75 13.5–17.5 17.0–20.0 4.0–5.0 . . . . . . . . . 0.10–0.20 . . . 0.75 max . . .
. . . S32615 0.07 2.00 0.045 0.030 4.8–6.0 19.0–22.0 16.5–19.5 0.30–1.50 . . . . . . . . . . . . . . . 1.50–2.50 . . .
. . . S34565 0.030 5.0–7.0 0.030 0.010 1.00 16.0–18.0 23.0–25.0 4.0–5.0 . . . 0.1 max . . . 0.40–0.60 . . . . . . . . .
A
New designation established in accordance with Practice E527 and SAE , Practice for Numbering Metals and Alloys (UNS).
B
Maximum, unless otherwise indicated.
C
The method of analysis for nitrogen shall be a matter of agreement between the purchaser and manufacturer.
D
The boron content shall be in the range 0.004–0.008.
E
The titanium content shall be not less than five times the carbon content and not more than 0.70 %.
F
The titanium content shall be not less than four times the carbon content and not more than 0.60 %.
G
The columbium (niobium) plus tantalum content shall be not less than ten times the carbon content and not more than 1.00 %.
H
The columbium (niobium) plus tantalum content shall be not less than eight times the carbon content and not more than 1.0 %.
A943/A943M – 01 (2005)
4.1.10 Special requirements or any supplementary require- 6.3.3 The heat-treatment procedure for S31254 shall consist
ments selected, or both. of heating the pipe to a minimum temperature of 2100°F
[1150°C] and quenching in water or rapidly cooling by other
5. General Requirements
means.
5.1 Material furnished under this specification shall con-
6.3.4 A solution annealing temperature above 1950°F
form to the applicable requirements of the current edition of
[1065°C] may impair the resistance to intergranular corrosion
Specification A999/A999M unless otherwise provided herein.
after subsequent exposure to sensitizing conditions in
TP309HCb, TP310HCb, TP321, TP321H, TP347, TP347H,
6. Materials and Manufacture
TP348, andTP348H.When specified by the purchaser, a lower
6.1 Melting—The steel shall be made by the electric-
temperature stabilization or re-solution anneal shall be used
furnace process or by other similar processes. The primary
subsequent to the initial high temperature solution anneal (see
melting may incorporate separate degassing or refining and
Supplementary Requirement S6).
may be followed by secondary melting, using electroslag
6.4 Grain Size:
remelting or vacuum-arc remelting. If secondary melting is
6.4.1 The grain size of TP304H, TP316H, TP321H,
employed,theheatshallbedefinedasalloftheingotsremelted
TP347H and TP348H, as determined in accordance with Test
from a single primary heat.
Methods E112, shall be ASTM No. 7 or coarser.
6.1.1 If a specified type of melting is required by the
6.4.2 The grain size of TP309H, TP309HCb, TP310H and
purchaser, it shall be stated on the purchase order.
TP310HCb, shall be ASTM No. 6 or coarser.
6.1.2 When specified on the purchase order, or when a
specific type of melting has been specified, the material
7. Chemical Composition
manufacturer shall include with the report required by the Heat
7.1 The steel shall conform to the requirements as to
Analysis section of this specification or the Certification
chemical composition prescribed in Table 1.
section of SpecificationA999/A999M the type of melting used
to produce the material.
8. ProductAnalysis
6.2 Pipe Manufacture:
8.1 At the request of the purchaser, an analysis of two pipes
6.2.1 The pipe shall be made by the spray forming process
from each lot shall be made by the manufacturer.Alot of pipe
using the steel from the electric steel process or other similar
shall consist of the following number of lengths of the same
processes as in 6.1.
size and wall thickness from any one heat of stainless steel:
6.2.2 The pipe shall be made by spraying the melt on to a
NPS Designator Lengths of Pipe in Lot
thin-walled collector tube. The as-spray formed pipe shall be
machined on both the inner and outer surfaces. The remaining
Under 2
2 to 5 200 or fraction thereof
metalshallbehomogeneous,sound,andmeettherequirements
6 and over 100 or fraction thereof
of Section 11.
6.2.3 Unless specified by the purchaser, pipe may be fur-
8.2 The results of these analyses shall be reported to the
nished as-spray formed or as-spray formed and cold finished. purchaser or the purchaser’s representative, and shall conform
6.2.4 All pipe shall be furnished in the descaled condition to the requirements specified in Section 7.
and be free of contaminating iron particles. Pickling, blasting 8.3 If the analysis of one of the tests specified in 8.1 does
or surface finishing is not mandatory when pipe is bright not conform to the requirements specified in Section 7,an
annealed. The purchaser may request that a passivating treat- analysis of each pipe from the same heat or lot may be made,
ment be applied. and all pipes conforming to the requirements shall be accepted.
6.3 Heat Treatment:
6.3.1 All pipe shall be furnished in the heat-treated condi- 9. Tensile Requirements
tion. The heat-treatment procedure, except for “H” grades,
9.1 Th
...