ASTM A182-A182M 13a
ASTM A182-A182M 13a
ASTM A182-A182M 13a
DOI: 10.1520/A0182_A0182M-13A. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-182 in Section II of that Code. the ASTM website.
condition achieved after normalizing and cooling to room 6.5 Except as provided for in 6.4, the finished product shall
temperature but prior to tempering. be a forging as defined in the Terminology section of Specifi-
cation A788/A788M.
4. Ordering Information
4.1 It is the purchaser’s responsibility to specify in the 7. Heat Treatment7
purchase order information necessary to purchase the needed 7.1 After hot working, forgings shall be cooled to a tem-
material. In addition to the ordering information guidelines in perature below 1000 °F [538 °C] prior to heat treating in
Specification A961/A961M, orders should include the follow- accordance with the requirements of Table 1.
ing information:
7.2 Low Alloy Steels and Ferritic and Martensitic Stainless
4.1.1 Additional requirements (see 7.2.1, Table 2 footnotes,
Steels—The low alloy steels and ferritic and martensitic
9.3, and 19.2), and
stainless steels shall be heat treated in accordance with the
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The last approved version of this historical standard is referenced on
7
www.astm.org. A solution annealing temperature above 1950 °F [1065 °C] may impair the
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Available from American Society of Mechanical Engineers (ASME), ASME resistance to intergranular corrosion after subsequent exposure to sensitizing
International Headquarters, Two Park Ave., New York, NY 10016-5990, http:// conditions in F 321, F 321H, F 347, F 347H, F 348, and F 348H. When specified
www.asme.org. by the purchaser, a lower temperature stabilization or resolution annealing shall be
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Available from American Welding Society (AWS), 550 NW LeJeune Rd., used subsequent to the initial high temperature solution anneal (see Supplementary
Miami, FL 33126, http://www.aws.org. Requirement S10).
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requirements of 7.1 and Table 1. When more than one heat 7.3 Austenitic and Ferritic-Austenitic Stainless Steels—The
treatment option is listed for a Grade in Table 1, any one of the austenitic and ferritic-austenitic stainless steels shall be heat
heat treatments listed shall be performed. The selection of the treated in accordance with the requirements of 7.1 and Table 1.
heat treatment shall be at the manufacturer’s option, unless 7.3.1 Alternatively, immediately following hot working,
otherwise stated in the purchase order. while the temperature of the forging is not less than the
7.2.1 Liquid Quenching—Except as permitted in 7.2.2, for minimum solution annealing temperature specified in Table 1,
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F 1, F 2, and F 3, and in 7.2.3, for F 91, and when agreed to by forgings made from austenitic grades (except grades F 304H, F
the purchaser, liquid quenching followed by tempering shall be 309H, F 310, F 310H, F 316H, F 321, F 321H, F 347, F 347H,
permitted provided the temperatures in Table 1 for each grade F 348, F 348H, F 45, and F 56) may be individually rapidly
are used. quenched in accordance with the requirements of Table 1.
7.2.1.1 Marking—Parts that are liquid quenched and tem- 7.3.2 See Supplementary Requirement S8 if a particular
pered shall be marked “QT.” heat treatment method is to be employed.
7.2.2 Alternatively, Grade F 1, F 2, and F 12, Classes 1 and
2 may be given a heat treatment of 1200 °F [650 °C] minimum 7.4 Time of Heat Treatment—Heat treatment of forgings
after final hot or cold forming. may be performed before machining.
7.2.3 Alternatively, Grade F 91 forged fittings having any 7.5 Forged or Rolled Bar—Forged or rolled austenitic
section thickness greater than 3 in. [75 mm], at the time of heat stainless bar from which cylindrically shaped parts are to be
treatment, shall be normalized and tempered or quenched and machined, as permitted by 6.4, and the parts machined from
tempered at the manufacturer’s option, provided that the such bar, without heat treatment after machining, shall be
temperatures in Table 1 for F 91 are used. furnished to the annealing requirements of Specification A479/
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625 °F [614 °C] and equipped with recording pyrometers so
9.2 Mechanical test specimens shall be obtained from pro- that complete records of heat treatment are available, then only
duction forgings, or from separately forged test blanks pre- one tension test from each heat of each forging type (see Note
pared from the stock used to make the finished product. In 1) and section size is required, instead of one test from each
either case, mechanical test specimens shall not be removed heat in each heat-treatment charge.
until after all heat treatment is complete. If repair welding is
required, test specimens shall not be removed until after NOTE 1—“Type” in this case is used to describe the forging shape such
post-weld heat treatment is complete, except for ferritic grades as a flange, ell, tee, and the like.
when the post-weld heat treatment is conducted at least 50 °F 9.5.2 Austenitic and Ferritic-Austenitic Stainless Steel
[30 °C] below the actual tempering temperature. When test Grades—One tension test shall be made for each heat.
blanks are used, they shall receive approximately the same 9.5.2.1 When heat treated in accordance with 7.1, the test
working as the finished product. The test blanks shall be heat blank or forging used to provide the test specimen shall be heat
treated with the finished product and shall approximate the treated with a finished forged product.
maximum cross section of the forgings they represent.
9.5.2.2 When the alternative method in 7.3.1 is used, the test
9.3 For normalized and tempered, or quenched and tem- blank or forging used to provide the test specimen shall be
pered forgings, the central axis of the test specimen shall be forged and quenched under the same processing conditions as
taken at least 1⁄4 T from the nearest surface as-heat-treated, the forgings they represent.
where T is the maximum heat-treated thickness of the repre- 9.5.3 Testing shall be performed as specified in Specifica-
sented forging. In addition, for quenched and tempered tion A961/A961M using the largest feasible of the round
forgings, the mid-length of the test specimen shall be at least T specimens.
from all other surfaces as-heat-treated, exclusive of the T
dimension surfaces. When the section thickness does not 9.6 Hardness Tests:
permit this positioning, the test specimen shall be positioned as 9.6.1 Except when only one forging is produced, a mini-
near as possible to the prescribed location, as agreed to by the mum of two pieces per batch or continuous run as defined in
purchaser and the supplier. 9.6.2 shall be hardness tested as specified in Specification
9.3.1 With prior purchase approval, the test specimen for A961/A961M to ensure that the forgings are within the
ferritic steel forgings may be taken at a depth (t) corresponding hardness limits given for each grade in Table 3. The purchaser
0.5 % molybdenum
F 6NM S41500 13 % chromium, 4 % 0.05 0.50–1.00 0.030 0.030 0.60 3.5–5.5 11.5–14.0 0.50–1.00 ... ... ...
nickel
Ferritic Stainless Steels
F XM- S44627 27 chromium, 1 0.010H 0.40 0.020 0.020 0.40 0.50H 25.0–27.5 0.75–1.50 0.05–0.20 ... N 0.015H
27Cb molybdenum Cu 0.20H
XM-27G
F 429 S42900 15 chromium 0.12 1.00 0.040 0.030 0.75 0.50 14.0–16.0 ... ... ... ...
429G
F 430 S43000 17 chromium 0.12 1.00 0.040 0.030 0.75 0.50 16.0–18.0 ... ... ... ...
430G
Austenitic Stainless Steels
F 304 S30400 18 chromium, 8 nickel 0.08 2.00 0.045 0.030 1.00 8.0–11.0 18.0–20.0 ... ... ... N 0.10
304G
F 304H S30409 18 chromium, 8 nickel 0.04–0.10 2.00 0.045 0.030 1.00 8.0–11.0 18.0–20.0 ... ... ... ...
304HG
F 304L S30403 18 chromium, 8 nickel, 0.030 2.00 0.045 0.030 1.00 8.0–13.0 18.0–20.0 ... ... ... N 0.10
low carbon
304LG
F 304N S30451 18 chromium, 8 nickel, 0.08 2.00 0.045 0.030 1.00 8.0–10.5 18.0–20.0 ... ... ... N 0.10–0.16
modified with nitrogen
304NG
F 304LN S30453 18 chromium, 8 nickel, 0.030 2.00 0.045 0.030 1.00 8.0–10.5 18.0–20.0 ... ... ... N 0.10–0.16
modified with nitrogen
304LNG
F 309H S30909 23 chromium, 13.5 0.04–0.10 2.00 0.045 0.030 1.00 12.0–15.0 22.0–24.0 ... ... ... ...
nickel
309HG
F 310 S31000 25 chromium, 20 nickel 0.25 2.00 0.045 0.030 1.00 19.0–22.0 24.0–26.0 ... ... ... ...
310G
F 310H S31009 25 chromium, 20 nickel 0.04–0.10 2.00 0.045 0.030 1.00 19.0–22.0 24.0–26.0 ... ... ... ...
310HG
F S31050 25 chromium, 22 0.030 2.00 0.030 0.015 0.40 21.0–23.0 24.0–26.0 2.00–3.00 ... ... N 0.10–0.16
310MoLN nickel,
modified with
molybdenum and
nitrogen, low carbon
310MoLNG
F 316 S31600 18 chromium, 8 nickel, 0.08 2.00 0.045 0.030 1.00 10.0–14.0 16.0–18.0 2.00–3.00 ... ... N 0.10
modified with
molybdenum
316G
F 316H S31609 18 chromium, 8 nickel, 0.04–0.10 2.00 0.045 0.030 1.00 10.0–14.0 16.0–18.0 2.00–3.00 ... ... ...
modified with
molybdenum
316HG
F 316L S31603 18 chromium, 8 nickel, 0.030 2.00 0.045 0.030 1.00 10.0–15.0 16.0–18.0 2.00–3.00 ... ... N 0.10
modified with
molybdenum, low
carbon
316LG
F 316N S31651 18 chromium, 8 nickel, 0.08 2.00 0.045 0.030 1.00 11.0–14.0 16.0–18.0 2.00–3.00 ... ... N 0.10–0.16
modified with
molybdenum and
nitrogen
316NG
M
F 347H S34709 18 chromium, 8 nickel, 0.04–0.10 2.00 0.045 0.030 1.00 9.0–13.0 17.0–20.0 ... ... ...
modified with
columbium
347HG
F347LN S34751 18 chromium, 8 nickel 0.005–0.020 2.00 0.045 0.030 1.00 9.0–13.0 17.0–19.0 ... 0.20–0.50N ... N 0.06–0.10
modified with
columbium and
nitrogen
347LN
L
F 348 S34800 18 chromium, 8 nickel 0.08 2.00 0.045 0.030 1.00 9.0–13.0 17.0–20.0 ... ... Co 0.20
modified with Ta 0.10
columbium
348G
M
F 348H S34809 18 chromium, 8 nickel, 0.04–0.10 2.00 0.045 0.030 1.00 9.0–13.0 17.0–20.0 ... ... Co 0.20
modified with Ta 0.10
columbium
348HG
F XM-11 S21904 20 chromium, 6 nickel, 0.040 8.0–10.0 0.060 0.030 1.00 5.5–7.5 19.0–21.5 ... ... ... N 0.15–0.40
9 manganese
XM-11G
F XM-19 S20910 22 chromium, 13 0.06 4.0–6.0 0.040 0.030 1.00 11.5–13.5 20.5–23.5 1.50–3.00 0.10– ... N 0.20–0.40
nickel, 5 manganese 0.30 V 0.10–0.30
G
XM-19
F 20 N08020 35 nickel, 20 .07 2.00 0.045 0.035 1.00 32.0–38.0 19.0–21.0 2.00–3.00 8xCmin ... Cu 3.0–4.0
chromium, 3.5 copper, –1.00
2.5 molybdenum
F 44 S31254 20 chromium, 18 0.020 1.00 0.030 0.010 0.80 17.5–18.5 19.5–20.5 6.0–6.5 ... ... Cu 0.50–1.00
nickel, 6 molybdenum, N 0.18–0.25
low carbon
F 45 S30815 21 chromium, 11 nickel 0.05–0.10 0.80 0.040 0.030 1.40–2.00 10.0–12.0 20.0–22.0 ... ... ... N 0.14–0.20
modified with nitrogen Ce 0.03–0.08
and cerium
F 46 S30600 18 chromium, 15 0.018 2.00 0.020 0.020 3.7–4.3 14.0–15.5 17.0–18.5 0.20 ... ... Cu 0.50
nickel, 4 silicon
F 47 S31725 19 chromium, 15 0.030 2.00 0.045 0.030 0.75 13.0–17.5 18.0–20.0 4.0–5.0 ... ... N 0.10
nickel, 4 molybdenum
317LMG
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2 tungsten with W 1.50–2.50
nitrogen
F 62 N08367 21 chromium, 25 0.030 2.00 0.040 0.030 1.00 23.5–25.5 20.0–22.0 6.0–7.0 ... ... N 0.18–0.25
nickel, 6.5 molybdenum Cu 0.75
F 63 S32615 18 chromium, 20 0.07 2.00 0.045 0.030 4.8-6.0 19.0-22.0 16.5-19.5 0.30-1.50 ... ... Cu 1.50-2.50
nickel, 5.5 silicon
F 64 S30601 17.5 chromium, 17.5 0.015 0.50-0.80 0.030 0.013 5.0-5.6 17.0-18.0 17.0-18.0 0.20 ... ... Cu 0.35, N 0.05
nickel, 5.3 silicon
F 904L N08904 21 chromium, 26 0.020 2.0 0.040 0.030 1.00 23.0–28.0 19.0–23.0 4.0–5.0 ... ... Cu 1.00–2.00
nickel, 4.5 molybdenum N 0.10
904LG
Ferritic-Austenitic Stainless Steels
F 50 S31200 25 chromium, 6 nickel, 0.030 2.00 0.045 0.030 1.00 5.5–6.5 24.0–26.0 1.20–2.00 ... ... N 0.14–0.20
modified with nitrogen
F 51 S31803 22 chromium, 5.5 0.030 2.00 0.030 0.020 1.00 4.5–6.5 21.0–23.0 2.5–3.5 ... ... N 0.08–0.20
nickel, modified with
nitrogen
F 52 S32950 26 chromium, 3.5 0.030 2.00 0.035 0.010 0.60 3.5–5.2 26.0–29.0 1.00–2.50 ... ... N 0.15–0.35
nickel, 1.0 molybdenum
F 53 S32750 25 chromium, 7 nickel, 0.030 1.20 0.035 0.020 0.80 6.0–8.0 24.0–26.0 3.0–5.0 ... ... N 0.24–0.32
4 molybdenum, Cu 0.50
modified with nitrogen
2507G
F 54 S39274 25 chromium, 7 nickel, 0.030 1.00 0.030 0.020 0.80 6.0–8.0 24.0–26.0 2.5–3.5 ... ... N 0.24–0.32
modified with nitrogen Cu 0.20–0.80
and tungsten W 1.50–2.50
F 55 S32760 25 chromium, 7 nickel, 0.030 1.00 0.030 0.010 1.00 6.0–8.0 24.0–26.0 3.0–4.0 ... ... N 0.20–0.30
3.5 molybdenum, Cu 0.50–1.00
modified with nitrogen W 0.50–1.00O
and tungsten
F 57 S39277 26 chromium, 7 nickel, 0.025 0.80 0.025 0.002 0.80 6.5–8.0 24.0–26.0 3.0–4.0 ... ... Cu 1.20–2.00
3.7 molybdenum W 0.80–1.20
N 0.23–0.33
F 59 S32520 25 chromium, 6.5 0.030 1.50 0.035 0.020 0.80 5.5–8.0 24.0–26.0 3.0–5.0 ... ... N 0.20–0.35
nickel, 4 molybdenum Cu 0.50–3.00
with nitrogen
F 60 S32205 22 chromium, 5.5 0.030 2.00 0.030 0.020 1.00 4.5–6.5 22.0–23.0 3.0–3.5 ... ... N 0.14–0.20
nickel, 3 molybdenum,
modified with nitrogen
2205G
F 61 S32550 26 chromium, 6 nickel, 0.040 1.50 0.040 0.030 1.00 4.5–6.5 24.0–27.0 2.9–3.9 ... ... Cu 1.50–2.50
3.5 molybdenum with N 0.10–0.25
nitrogen and copper
255G
F 65 S32906 29 chromium, 6.5 0.030 0.80–1.50 0.030 0.030 0.80 5.8–7.5 28.0–30.0 1.5–2.6 ... ... Cu 0.80
nickel, 2 molybdenum N 0.30–0.40
with nitrogen
F 66 S32202 22 chromium, 2.0 0.030 2.00 0.040 0.010 1.00 1.00–2.80 21.5–24.0 0.45 ... ... N 0.18–0.26
nickel, 0.25
molybdenum with
nitrogen
F 67 S32506 25 chromium, 6 nickel, 0.030 1.00 0.040 0.015 0.90 5.5–7.2 24.0–26.0 3.0–3.5 ... ... N 0.08–0.20
3 molybdenum, with W 0.05–0.30
nitrogen
and tungsten
F 68 S32304 23 chromium, 4 nickel, 0.030 2.50 0.040 0.030 1.00 3.0–5.5 21.5–24.5 0.05–0.60 N 0.05–0.20
with nitrogen Cu 0.05–0.60
A
All values are maximum unless otherwise stated. Where ellipses (...) appear in this table, there is no requirement and analysis for the element need not be determined
or reported.
B
Grade F 2 was formerly assigned to the 1 % chromium, 0.5 % molybdenum grade which is now Grade F 12.
C
The present grade F 5a (0.25 max carbon) previous to 1955 was assigned the identification symbol F 5. Identification symbol F 5 in 1955 was assigned to the 0.15 max
carbon grade to be consistent with ASTM specifications for other products such as pipe, tubing, bolting, welding fittings, and the like.
D
Applies to both heat and product analyses.
may verify that the requirement has been met by testing at any 10. Grain Size for Austenitic Grades
location on the forging provided such testing does not render 10.1 All H grades and grade F 63 shall be tested for average
the forging useless. grain size by Test Methods E112.
9.6.2 When the reduced number of tension tests permitted 10.1.1 Grades F 304H, F 309H, F 310H, and F 316H shall
by 9.5.1.1 is applied, additional hardness tests shall be made on have a grain size of ASTM No. 6 or coarser.
forgings or samples, as defined in 9.2, scattered throughout the 10.1.2 Grades F 321H, F 347H, and F 348H shall have a
load (see Note 2). At least eight samples shall be checked from grain size of ASTM No. 7 or coarser.
each batch load, and at least one check per hour shall be made 10.1.3 Grade F 63 shall have a grain size of ASTM No. 3 or
from a continuous run. When the furnace batch is less than finer.
eight forgings, each forging shall be checked. If any check falls
outside the prescribed limits, the entire lot of forgings shall be 11. Corrosion Testing for Austenitic Grades
reheat treated and the requirements of 9.5.1 shall apply. 11.1 Corrosion testing is not required by this specification.
NOTE 2—The tension test required in 9.5.1 is used to determine material 11.2 Austenitic grades shall be capable of meeting the
capability and conformance in addition to verifying the adequacy of the intergranular corrosion test requirements described in Supple-
heat-treatment cycle. Additional hardness tests in accordance with 9.6.2
are required when 9.5.1.1 is applied to ensure the prescribed heat-treating mentary Requirement S4.
cycle and uniformity throughout the load. 12. Retreatment
9.6.3 When the alternative to the Ti/N ratio limit for F23 is
12.1 If the results of the mechanical tests do not conform to
applied, (see Note P in Table 2), a minimum of two pieces per
the requirements specified, the manufacturer may reheat treat
batch or continuous run as defined in 9.6.2 shall be hardness
the forgings and repeat the tests specified in Section 9.
tested, in the hardened condition (see 3.2.1), to ensure that the
forgings are within the hardness limit given for F23 in Note P 13. Nondestructive Test Requirements
of Table 2. The test samples shall be taken at the mid thickness 13.1 Hollow forgings of Grades F 91, F 92, F 122, and F
of the thickest section of the product. Testing shall be per- 911, NPS 4 [DIN 100] and larger, whose internal surfaces are
formed in accordance with the Test Method E92 or as specified not accessible to magnetic particle or liquid penetrant
in Specification A961/A961M. examination, shall be examined by an ultrasonic test in
9.7 Notch Toughness Requirements—Grades F 3V, F 3VCb, accordance with Practice A388/A388M.
and F 22V. 13.2 Hollow forgings of Grades F 91, F 92, F 122, and F
9.7.1 Impact test specimens shall be Charpy V-notch Type. 911, NPS 4 [DIN 100] and larger, whose internal surfaces are
The usage of subsize specimens due to material limitations accessible to magnetic particle or liquid penetrant examination,
must have prior purchaser approval. shall be examined on their internal surfaces by either a
9.7.2 The Charpy V-notch test specimens shall be obtained magnetic particle test in accordance with Practice A275/
as required for tension tests in 9.2, 9.3 and 9.5. One set of three A275M, or by a liquid penetrant examination in accordance
Charpy V-notch specimens shall be taken from each tensile with Test Method E165, as applicable.
specimen location.
9.7.3 The longitudinal axis and mid-length of impact speci- 13.3 Time of Examination:
men shall be located similarly to the longitudinal axis of the 13.3.1 Examination by one of the methods in 13.1 or 13.2,
tension test specimens. The axis of the notch shall be normal to for specification acceptance, shall be performed after all
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the nearest heat-treated surface of the forging. mechanical processing and heat treatment. This requirement
9.7.4 The Charpy V-notch tests shall meet a minimum does not preclude additional testing at earlier stages in the
energy absorption value of 40 ft-lbf [54 J] average of three processing.
specimens. One specimen only in one set may be below 40 13.4 Evaluation of Imperfections Found by Ultrasonic Ex-
ft-lbf [54 J], and it shall meet a minimum value of 35 ft-lbf [48 amination:
J]. 13.4.1 Forgings producing a signal equal to or greater than
9.7.5 The impact test temperature shall be 0 °F [−18 °C]. the lowest signal produced by the reference discontinuities
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F 6a Class 4 130 [895] 110 [760] 12 35 263–321
F 6b 110–135 [760–930] 90 [620] 16 45 235–285
F 6NM 115 [790] 90 [620] 15 45 295 max
Ferritic Stainless Steels
F XM-27Cb 60 [415] 35 [240] 20 45 190 max
F 429 60 [415] 35 [240] 20 45 190 max
F 430 60 [415] 35 [240] 20 45 190 max
Austenitic Stainless Steels
F 304 75 [515]C 30 [205] 30 50 ...
F 304H 75 [515]C 30 [205] 30 50 ...
F 304L 70 [485]D 25 [170] 30 50 ...
F 304N 80 [550] 35 [240] 30E 50F ...
F 304LN 75 [515]C 30 [205] 30 50 ...
F 309H 75 [515]C 30 [205] 30 50 ...
F 310 75 [515]C 30 [205] 30 50 ...
F 310MoLN 78 [540] 37 [255] 25 40 ...
F 310H 75 [515]C 30 [205] 30 50 ...
F 316 75 [515]C 30 [205] 30 50 ...
F 316H 75 [515]C 30 [205] 30 50 ...
F 316L 70 [485]D 25 [170] 30 50 ...
F 316N 80 [550] 35 [240] 30E 50F ...
F 316LN 75 [515]C 30 [205] 30 50 ...
F 316Ti 75 [515] 30 [205] 30 40 ...
F 317 75 [515]C 30 [205] 30 50 ...
F 317L 70 [485]D 25 [170] 30 50 ...
S31727 80 [550] 36 [245] 35 50 217
S32053 93 [640] 43 [295] 40 50 217
F 347 75 [515]C 30 [205] 30 50 ...
F 347H 75 [515]C 30 [205] 30 50 ...
F 347LN 75 [515] 30 [205] 30 50 ...
F 348 75 [515]C 30 [205] 30 50 ...
F 348H 75 [515]C 30 [205] 30 50 ...
F 321 75 [515]C 30 [205] 30 50 ...
F 321H 75 [515]C 30 [205] 30 50 ...
F XM-11 90 [620] 50 [345] 45 60 ...
F XM-19 100 [690] 55 [380] 35 55 ...
F 20 80 [550] 35 [240] 30 50 ...
F 44 94 [650] 44 [300] 35 50 ...
F 45 87 [600] 45 [310] 40 50 ...
F 46 78 [540] 35 [240] 40 50 ...
F 47 75 [525] 30 [205] 40 50 ...
F 48 80 [550] 35 [240] 40 50 ...
shall be identified and separated from the acceptable forgings. amount so removed. To be accepted, retested forgings shall
The area producing the signal may be reexamined. meet the test requirement.
13.4.2 Such forgings shall be rejected if the test signals were 13.5.3 If the imperfection is explored to the extent that it can
produced by imperfections that cannot be identified or were be identified as non-rejectable, the forging may be accepted
produced by cracks or crack-like imperfections. Such forgings without further test provided that the imperfection does not
may be repaired. To be accepted, a repaired forging shall pass encroach on the minimum required wall thickness.
the same nondestructive test by which it was rejected, and it
shall meet the minimum wall thickness requirements of this 14. Workmanship, Finish, and Appearance
specification and the purchase order. 14.1 Forgings shall conform to the requirements of Speci-
13.4.3 If the test signals were produced by visual imperfec- fication A961/A961M.
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tions such as scratches, surface roughness, dings, tooling 14.2 The forgings shall be free of scale, machining burrs
marks, cutting chips, steel die stamps, or stop marks, the which might hinder fit-up, and other injurious imperfections as
forging is permitted to be accepted based upon visual exami- defined herein. The forgings shall have a workmanlike finish,
nation provided that the depth of the imperfection is less than and machined surfaces (other than surfaces having special
0.004 in. [0.1 mm] or 12.5 % of the specified wall thickness, requirements) shall have a surface finish not to exceed 250 AA
whichever is the greater. (arithmetic average) roughness height.
13.5 Treatment of Imperfections Found by Magnetic Par-
ticle or Liquid Penetrant Examination: 15. Repair by Welding
13.5.1 Defects shall be completely removed prior to weld 15.1 Weld repairs shall be permitted (see Supplementary
repair by chipping or grinding to sound metal. Removal of Requirement S58 of Specification A961/A961M) at the discre-
these defects shall be verified by magnetic particle inspection tion of the manufacturer with the following limitations and
in accordance with Test Method A275/A275M or by liquid requirements:
penetrant inspection in accordance with Test Method E165. 15.1.1 The welding procedure and welders shall be qualified
13.5.2 Rejected forgings may be reconditioned and retested, in accordance with Section IX of the ASME Boiler and
provided that the wall thickness is not decreased to less than Pressure Vessel Code.
that required by this specification and the purchase order. The 15.1.2 The weld metal shall be deposited using the elec-
outside diameter at the point of grinding may be reduced by the trodes specified in Table 4 except as otherwise provided in
F 3V, and F 3VCb 3 % Cr, 1 % Mo, 1⁄4 % V-Ti 300–600 [150–315] 1250 [675]
F 22 Class 1 E 9018-B 3 300–600 [150–315] 1250 [675]
F 22 Class 3 E 9018-B 3 300–600 [150–315] 1250 [675]
F 22V 2.25 % Cr, 1 % Mo, 0.25 % 300–600 [150–315] 1250 [675]
V-Cb
F 23 2.25 % Cr, 1.6 % W, 0.25 % 300-600 [150–315] 1350–1470 [730–800]
V-Mo-Cb-B
E
F 24 2.25 % Cr, 1 % Mo, 0.25 % V 200–400 [95–205] 1350–1470 [730–800]E
F 36, Class 1 1.15 Ni, 0.65 Cu, Mo, Cb 400–700 [205–370] 1100–1200 [595–650]
F 36, Class 2 1.15 Ni, 0.65 Cu, Mo, Cb 400–700 [205–370] 1000–1150 [540–620]
Martensitic Stainless Steels
F 6a, Class 1 E 410-15 or 16 400–700 [205–370] 1250 [675]
F 6a, Class 2 E 410-15 or 16 400–700 [205–370] 1250 [675]
F 6b 13 % Cr, 11⁄2 % Ni, 1⁄2 % Mo 400–700 [205–370] 1150 [620]
F 6NM 13 % Cr, 4 % Ni 300–700 [150–370] 1050 [565]
Ferritic Stainless Steels
F XM-27Cb 26 % Cr, 1 % Mo NRF NR
F 429 E 430-16 400–700 [205–370] 1400 [760]
F 430 E 430-16 NR 1400 [760]
FR E 8018-C2 NR NR
Austenitic Stainless Steels
F 304 E 308-15 or 16 NR 1900 [1040] + WQG
F 304L E 308L-15 or 16 NR 1900 [1040] + WQ
F 304H E 308-15 or 16H or E308H-XX NR 1900 [1040] + WQ
F 304N E 308-15 or 16 NR 1900 [1040] + WQ
F 304LN E 308L-15 or 16 NR 1900 [1040] + WQ
F 309H E 309-15 or 16H or E309H-XX NR 1900 [1040] + WQ
F 310 E 310-15 or 16 NR 1900 [1040] + WQ
F 310H E 310-15 or 16H NR 1900 [1040] + WQ
F 310MoLN E 310Mo-15 or 16 NR 1920–2010 [1050–1100] + WQ
F 316 E 316-15 or 16 NR 1900 [1040] + WQ
F 316L E 316L-15 or 16 NR 1900 [1040] + WQ
F 316H E 316-15 or 16H or E316H-XX NR 1900 [1040] + WQ
F 316N E 316-15 or 16 NR 1900 [1040] + WQ
F 316LN E 316L-15 or 16 NR 1900 [1040] + WQ
F 316Ti E 316-15 or 16 NR 1900 [1040] + WQ
F 317 E 317-15 or 16 NR 1900 [1040] + WQ
F 317L E 317L-15 or 16 NR 1900 [1040] + WQ
S31727 ... NR ...
S32053 ... NR ...
F 321B E 347-15 or 16 NR 1900 [1040] + WQ
F 321HB E 347-15 or 16H NR 1925 [1050] + WQ
F 347 E 347-15 or 16 NR 1900 [1040] + WQ
F 347H E 347-15 or 16H NR 1925 [1050] + WQ
F 347LNI E 347-15 or 16 NR ...
E 348 E 347-15 or 16 NR 1900 [1040] + WQ
F 348H E 347-15 or 16H NR 1925 [1050] + WQ
F XM-11 XM-10W NR NR
F XM-19 XM-19W NR NR
F 20 E/ER-320, 320LR NR 1700–1850 [925–1010] + WQ
F 44 E NiCrMo-3 NR 2100 [1150] + WQ
F 45B ... ... ...
F 46 ... ... ...
F 47 . . .J ... 2100 [1150] + WQ
F 48 . . .J ... 2100 [1150] + WQ
H
Filler metal shall additionally have 0.04 % minimum carbon.
I
Matching filler metal is available.
J
Match filler metal is available. Fabricators have also used AWS A5.14/A5.14M, Classification ERNiCrMo-3 and AWS A5.11/A5.11M, Class E, ENiCrMo-3 filler metals.
Supplementary Requirement S5. The electrodes shall be pur- 15.1.7 When approval of the purchaser is obtained, the
chased in accordance with AWS Specifications A5.4/A5.4M, limitations set forth in 15.1.6 may be exceeded, but all other
A5.5/A5.5M, A5.9/A5.9M, A5.11/A5.11M, A5.14/A5.14M, requirements of Section 15 shall apply.
A5.23/A5.23M, A5.28/A5.28M, or A5.29/A5.29M. The sub- 15.1.8 No weld repairs are permitted for F 6a Classes 3 and
merged arc process with neutral flux, the gas metal-arc process, 4.
the gas tungsten-arc process, and gas shielded processes using 15.1.9 Post-weld heat treatment times for F 36 are: for Class
flux-core consumables, may be used. 1, up to 2 in. [50 mm] in thickness, 1 h per in. [25 mm], 15
15.1.3 Defects shall be completely removed prior to weld- minutes minimum, and over 2 in. [50 mm], 15 minutes for each
ing by chipping or grinding to sound metal as verified by additional in. of thickness or fraction thereof; for Class 2, 1 h
magnetic-particle inspection in accordance with Test Method per in. [25 mm], 1⁄2 h minimum.
A275/A275M for the low alloy steels and ferritic, martensitic,
or ferritic-austenitic stainless steels, or by liquid-penetrant 16. Inspection
inspection in accordance with Test Method E165 for all grades. 16.1 Inspection provisions of Specification A961/A961M
15.1.4 After repair welding, the welded area shall be ground apply.
smooth to the original contour and shall be completely free of
defects as verified by magnetic-particle or liquid-penetrant 17. Rejection and Rehearing
inspection, as applicable.
17.1 The purchaser shall comply with the provisions of
15.1.5 The preheat, interpass temperature, and post-weld Specification A961/A961M.
heat treatment requirements given in Table 4 shall be met.
Austenitic stainless steel forgings may be repair-welded with- 18. Certification
out the post-weld heat treatment of Table 4, provided purchaser
approval is obtained prior to repair. 18.1 In addition to the certification requirements of Speci-
15.1.6 Repair by welding shall not exceed 10 % of the fication A961/A961M, test reports shall be furnished to the
surface area of the forging nor 331⁄3 % of the wall thickness of purchaser or his representative.
the finished forging or 3⁄8 in. [9.5 mm], whichever is less, 18.2 Test reports shall provide the following where appli-
without prior approval of the purchaser. cable:
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tion A961/A961M, the following additional marking require- substantially applied tag.
ments shall apply:
19.1.1 Quenched and tempered low alloy or martensitic 20. Keywords
stainless forgings shall be stamped with the letters QT follow- 20.1 austenitic stainless steel; chromium alloy steel;
ing the specification designation. chromium-molybdenum steel; ferritic/austenitic stainless steel;
19.1.2 Forgings repaired by welding shall be marked with ferritic stainless steel; martensitic stainless steel; nickel alloy
the letter “W” following the Specification designation. When steel; notch toughness requirements; pipe fittings; piping ap-
repair-welded austenitic stainless steel forgings have not been plications; pressure containing parts; stainless steel fittings;
postweld heat treated in accordance with Table 4, the letters stainless steel forgings; steel; steel flanges; steel forgings,
“WNS” shall be marked following the specification designa- alloy; steel valves; temperature service applications, elevated;
tion. temperature service applications, high; wrought material
SUPPLEMENTARY REQUIREMENTS
SUMMARY OF CHANGES
Committee A01 has identified the location of selected changes to this specification since the last issue,
A182/A182M–13, that may impact the use of this specification. (Approved October 1, 2013)
(1) Revised 9.3 to clarify test specimen location. (5) Revised Footnote G in Table 3 to indicate that the thickness
(2) Raised nitrogen maximum from 0.22 to 0.25 for F 44 UNS breaks for F 53 apply to the thickness of the bar at the time of
S31254. heat treatment.
(3) Revised Sections 18 and 19 on certification and marking. (6) Added new ASME referenced document, B16.11.
(4) Revised Table 3 to place Note G into the table and to apply
a new Note G for F 53.
Committee A01 has identified the location of selected changes to this specification since the last issue,
A182/A182M–12a, that may impact the use of this specification. (Approved April 1, 2013)
(1) Revised Table 2 to correct the nitrogen content of F304L. (2) Revised Table 4 to add Grade F 68.
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