ASTM A564/A564M-99
(Specification)Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
SCOPE
1.1 This specification covers bars and shapes of age-hardening stainless steels. Hot-finished or cold-finished rounds, squares, hexagons, bar shapes, angles, tees, and channels are included; these shapes may be produced by hot rolling, extruding, or forging. Billets or bars for reforging may be purchased to this specification.
1.2 These steels are generally used for parts requiring corrosion resistance and high strength at room temperature, or at temperatures up to 600°F [315°C]; 700°F [370°C] for Type 632. They are suitable for machining in the solution-annealed condition after which they may be age-hardened to the mechanical properties specified in Section 7 without danger of cracking or distortion. Type XM-25 is machinable in the as-received fully heat treated condition.
1.3 Types 631 and 632 contain a large amount of ferrite in the microstructure and can have low ductility in forgings and larger diameter bars. Applications should be limited to small diameter bar.
1.4 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards; within the text and tables, the SI units are shown in [brackets]. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other. Combining values from the two systems may result in nonconformance with the specification.
1.5 Unless the order specifies an "M'' designation, the material shall be furnished to inch-pound units.
Note 1—For forgings, see Specification A 705/A 705M.
Note 2—For billets and bars for forging see Specification A 314.
General Information
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Standards Content (Sample)
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Designation: A 564/A 564M – 99
Standard Specification for
Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel
Bars and Shapes
This standard is issued under the fixed designation A 564/A 564M; 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 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
1.1 This specification covers bars and shapes of age-
A 484/A484M Specification for General Requirements for
hardening stainless steels. Hot-finished or cold-finished rounds,
Stainless Steel Bars, Billets, and Forgings
squares, hexagons, bar shapes, angles, tees, and channels are
A 705/A705M Specification for Age-Hardening, Stainless
included; these shapes may be produced by hot rolling,
Steel Forgings
extruding, or forging. Billets or bars for reforging may be
A 751 Test Methods, Practices, and Terminology for
purchased to this specification.
Chemical Analysis of Steel Products
1.2 These steels are generally used for parts requiring
E 527 Practice for Numbering Metals and Alloys (UNS)
corrosion resistance and high strength at room temperature, or
2.2 Other Documents:
at temperatures up to 600°F [315°C]; 700°F [370°C] for Type
SAE J1086 Recommended Practice for Numbering Metals
632. They are suitable for machining in the solution-annealed
and Alloys (UNS)
condition after which they may be age-hardened to the me-
chanical properties specified in Section 7 without danger of
3. Ordering Information
cracking or distortion. Type XM-25 is machinable in the
3.1 It is the responsibility of the purchaser to specify all
as-received fully heat treated condition.
requirements that are necessary for material ordered under this
1.3 Types 631 and 632 contain a large amount of ferrite in
specification. Such requirements may include but are not
the microstructure and can have low ductility in forgings and
limited to the following:
larger diameter bars. Applications should be limited to small
3.1.1 Quantity (weight or number of pieces),
diameter bar.
3.1.2 Type or UNS designation (Table 1),
1.4 The values stated in either inch-pound units or SI
3.1.3 Specific melt type when required,
(metric) units are to be regarded separately as standards; within
3.1.4 Heat treated condition (5.1),
the text and tables, the SI units are shown in [brackets]. The
3.1.5 Transverse properties when required (7.6),
values stated in each system are not exact equivalents; there-
3.1.6 Finish (Specification A 484/A 484M),
fore, each system must be used independent of the other.
3.1.7 Surface preparation of shapes (5.2.1),
Combining values from the two systems may result in noncon-
3.1.8 Size, or applicable dimension including diameter,
formance with the specification.
thickness, width, length, etc.,
1.5 Unless the order specifies an “M’’ designation, the
3.1.9 Preparation for delivery (Specification A 484/
material shall be furnished to inch-pound units.
A 484M),
NOTE 1—For forgings, see Specification A 705/A 705M.
3.1.10 Special requirements (refer to 7.4 and 8.3),
NOTE 2—For billets and bars for forging see Specification A 314.
3.1.11 Marking requirements (Specification A 484/
A 484M), and
2. Referenced Documents
3.1.12 ASTM designation and date of issue if other than that
2.1 ASTM Standards:
currently published.
A 314 Specification for Stainless Steel Billets and Bars for
3.2 If possible, the intended use of the item should be given
Forging
on the purchase order especially when the item is ordered for
a specific end use or uses.
NOTE 3—A typical ordering description is as follows: 5000 lb [2270 kg]
This specification is under the jurisdiction of ASTM Committee A-1 on Steel, 1
Type 630, Solution-Annealed Cold Finished Centerless Ground, 1 ⁄2in.
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
[38.0 mm] round bar, 10 to 12 ft [3.0 to 3.6 m] in length, ASTM A 564
A01.17 on Flat Stainless Steel Products.
dated _. End use: valve shafts.
Current edition approved Sept. 10, 1999. Published November 1999. Originally
published as A 564 – 66. Last previous edition A 564/A 564M – 97.
2 4
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Annual Book of ASTM Standards, Vol 01.01.
cation SA-564/SA-564M in Section II of that Code. Available from Society of Automotive Engineers, 400 Commonwealth Drive,
Annual Book of ASTM Standards, Vol 01.03. Warrendale, PA 15096.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
A 564/A 564M
4. General Requirements 7.3 The yield strength shall be determined by the offset
method as described in the current edition of Test Methods and
4.1 In addition to the requirements of this specification, all
Definitions A 370. The limiting permanent offset shall be 0.2 %
requirements of the current edition of Specifications A 484/
of the gage length of the specimen.
A 484M shall apply. Failure to comply with the general
7.4 The impact requirement shall apply only when specified
requirements of Specification A 484/A 484M constitutes non-
in the purchase order. When specified, the material, as repre-
conformance with this specification.
sented by impact test specimens, shall be capable of develop-
5. Materials and Manufacture
ing the impact property requirements specified in Table 3 when
heat treated in accordance with 5.1.
5.1 Heat Treatment:
7.5 Longitudinal impact requirements are not applicable to
5.1.1 Material of types other than XM-16, XM-25, and Type
bars less than ⁄8 in. (16.9 mm) diameter or size or flats less
630 shall be furnished in the solution-annealed condition, or in
than ⁄8 in. (16.9 mm) thick.
the equalized and oven-tempered condition, as noted in Table
7.6 Tensile and impact requirements in the transverse
2, unless otherwise specified by the purchaser.
(through thickness) direction are not applicable to bars less
5.1.1.1 Types 630, XM-16, and XM-25 may be furnished in
than 3 in. [75 mm] diameter in size or flats less than 3 in. [75
the solution-annealed or age-hardened condition.
mm] thick.
5.1.2 Reforging stock shall be supplied in a condition of
7.7 Material tensile tested and, when specified, impact
heat treatment to be selected by the forging manufacturer.
tested in the transverse (through thickness) direction and
5.2 Shapes may be subjected to either Class A or Class C
meeting the requirements shown in Table 3 need not be tested
preparation as specified on the purchase order.
in the longitudinal direction.
5.2.1 Class A consists of preparation by grinding for the
removal of imperfections of a hazardous nature such as fins,
8. Number of Tests
tears, and jagged edges provided the underweight tolerance is
8.1 At least one room temperature tension test and one or
not exceeded and the maximum depth of grinding at any one
more hardness tests shall be made on each lot.
point does not exceed 10 % of the thickness of the section.
8.2 One or more hardness tests and at least one tension test
5.2.2 Class C consists of preparation by grinding for the
shall be made from each lot on test samples heat treated as
removal of all visible surface imperfections provided the
required in 5.1. Unless otherwise specified in the purchase
underweight tolerance is not exceeded and the maximum depth
order, the condition of hardening heat treatment shall be at the
of grinding at any one point does not exceed 10 % of the
option of the producer. The tests shall meet the requirements of
thickness of the section.
Table 3.
6. Chemical Composition
8.3 When specified in the purchase order, the impact test
shall consist of testing three Charpy V-notch Type A specimens
6.1 Each alloy covered by this specification shall conform to
in accordance with Methods and Definitions A 370. The
the chemical requirements specified in Table 1.
specimens shall be heat treated in accordance with 5.1. Unless
6.2 Methods and practices relating to chemical analysis
otherwise specified in the purchase order, the condition of
required by this specification shall be in accordance with Test
hardening heat treatment shall be at the option of the producer
Methods, Practices, and Terminology A 751.
and testing shall be done at 70 to 80°F [20 to 25°C]. The tests
7. Mechanical Properties Requirements
shall meet the requirements of Table 3. When tested at
temperatures other than 70 to 80°F, [20 to 25°C] the impact test
7.1 The material, as represented by mechanical test speci-
mens, shall conform to the mechanical property requirements requirements will be as agreed upon by purchaser and pro-
ducer.
specified in Table 2 and shall be capable of developing the
properties in Table 3 when heat treated as specified in 5.1.
9. Keywords
7.2 Samples cut from bars for forging stock shall conform to
the mechanical properties of Table 2 and Table 3 when heat 9.1 age-hardening stainless steel; precipitation hardening
treated as specified in Table 2 and Table 3. stainless steel; stainless steel bars; stainless steel shapes
A 564/A 564M
A
TABLE 1 Chemical Requirements
Composition, %
UNS Phospho- Sul- Sili- Alumi- Molyb- Other
Type Carbon Manganese Chromium Nickel Titanium Copper
B
Designation rus fur con num denum Elements
C
S17400 630 0.07 1.00 0.040 0.030 1.00 15.00–17.50 3.00–5.00 . . . 3.00–5.00
S17700 631 0.09 1.00 0.040 0.030 1.00 16.00–18.00 6.50–7.75 0.75–1.50 . . . .
S15700 632 0.09 1.00 0.040 0.030 1.00 14.00–16.00 6.50–7.75 0.75–1.50 2.00–3.00 . . .
D
S35500 634 0.10–0.15 0.50–1.25 0.040 0.030 0.50 15.00–16.00 4.00–5.00 . 2.50–3.25 . .
S17600 635 0.08 1 .00 0.040 0.030 1.00 16.00–17.50 6.00–7.50 0.40 . 0.40–1.20 . .
C
S15500 XM-12 0.07 1.00 0.040 0.030 1.00 14.00–15.50 3.50–5.50 . . . 2.50–4.50
E
S13800 XM-13 0.05 0.20 0.010 0.008 0.10 12.25–13.25 7.50–8.50 0.90–1.35 2.00–2.50 . .
F
S45500 XM-16 0.03 0.50 0.015 0.015 0.50 11.00–12.50 7.50–9.50 . 0.50 0.90–1.40 1.50–2.50
F
S45503 . 0.010 0.50 0.010 0.010 0.20 11.00–12.50 7.50–9.50 . 0.50 1.00–1.35 1.50–2.50
G
S45000 XM-25 0.05 1.00 0.030 0.030 1.00 14.00–16.00 5.00–7.00 . 0.50–1.00 . 1.25–1.75
A
Limits are in percent maximum unless shown as a range or stated otherwise.
B
New designation established in accordance with Practice E 527 and SAE J1086.
C
Columbium plus tantalum 0.15–0.45.
D
Nitrogen 0.07–0.13.
E
Nitrogen 0.01.
F
Columbium plus tantalum 0.10–0.50.
G
Columbium 8 times carbon minimum.
TABLE 2 Solution Treatment
A
Mechanical Test Requirements in Solution Treated Condition
UNS
B C
Elongation
Tensile Strength, min Yield Strength, min Hardness
Condi-
Reduction
Desig- Type Solution Treatment
in 2 in. [50
tion
of Area,
nation
Rockwell C, Brinell,
mm] or 4D,
ksi [MPa] ksi [MPa]
min %
max max
min. %
S17400 630 A 1900 6 25°F [1040 6 15°C] (cool as . . . . . . 38 363
required to below 90°F (32°C))
S17700 631 A 1900 6 25°F [1040 6 15°C] (water . . . . . . . . . . . . . . . . . . HRB98 229
quench)
D
S15700 632 A 1900 6 25°F [1040 6 15°C] (water . . . . . . . . . . . . . . . . . . HRB100 269
quench)
E E
S35500 634 A 1900 6 25°F [1040 6 15°C] quench, . . . . . . . 363
hold not less than3hat minus 100°F
or lower
S17600 635 A 1900 6 25°F [1040 6 15°C] (air cool) 120 [825] 75 [515] 10 45 32 302
S15500 XM-12 A 1900 6 25°F [1040 6 15°C] (cool as . . . . . . 38 363
required to below 90°F (32°C))
S13800 XM-13 A 1700 6 25°F [925 6 15°C] Cool as . . . . . . 38 363
required to below 60°F [16°C]
S45500 XM-16 A 1525 6 25°F [830 6 15°C] (cool . . . . . . 36 331
rapidly)
F
S45000 XM-25 A 1900 6 25°F [1040 6 15°C] (cool 125 [860] 95 [655] 10 40 32 321
rapidly)
S45503 . . . A 1525 6 25°F [830 6 15°C] (cool . . . . . . 36 331
rapidly)
A
See 7.1.
B
See 7.3.
C
Either Rockwell C hardness or Brinell is permissible. On sizes ½ in. (12.70 mm) and smaller, Rockwell C is preferred.
D
321 BH for rounds cold drawn after solution treating.
E
Equalization and over-tempering treatment 1425 6 50°F [775 6 30°C] for not less than 3 h, cool to room temperature, heat to 1075 6 25°F [580 6 15°C] for not less
than 3 h.
F
Maximum 165 ksi [1140 MPa] tensile strength only for sizes up to ⁄2in. (13 mm).
A 564/A 564M
A
TABLE 3 Mechanical Test Requirements After Age Hardening Heat Treatment
Tensile Yield Impact
Elon-
Suggested Hardening or Aging
G
Strength, Strength, Hardness Charpy-V,
B,C,D
Applicable gation Reduc-
Treatment, or both
F
min min min
Condi- Thickness, in 2 in. tion of
Type
tion in. and Test [50 mm] area,
Tem- Rock-
E
Time, Brinell,
H Direction or 4D, min, %
perature, Quench ksi [MPa] ksi [MPa] well C, ft·lbf J
h min
min. %
°F [°C] min
630 H900 900 [480] 1.0 air cool Up to 3 in. incl [75 190 [1310] 170 [1170] 10 40 40 388 . . . . . .
mm] (L)
Over 3 in. [75 mm] 35
to 8 in. incl [200
mm] (L)
H925 925 [495] 4.0 air cool Up to 3 min. incl 170 [1170] 155 [1070] 10 44 38 375 5 6.8
[75 mm] (L)
Over 3 in. [75 mm] 38
to 8 in. incl [200
mm] (L)
H1025 1025 [550] 4.0 air cool 155 [1070] 145 [1000] 12 45 35 331 15 20
H1075 1075 [580] 4.0 air cool 145 [1000] 125 [860] 13 45 32 311 20 27
H1100 1100 [595] 4.0 air cool Up to 8 in. incl [200 140 [965] 115 [795] 14 45 31 302 25 34
mm] (L)
H1150 1150 [620] 4.0 air cool 135 [930] 105 [725] 16 50 28 277 30 41
H1150M 1400 [760] for 2 h, air cool plus 115 [795] 75 [520] 18 55 24 255 55 75
1150 [620] for 4 h, air cool
H1150D 1150 [620] for 4 h, air cool plus 125 [860] 105 [725] 16 50 24 255 30 41
1150 [620] for 4 h, air cool 33 max 311 max
631 RH950 1750°F [955°C] for not less than
10 min, but not more than 1 h,
cool rapidly to room temperature.
Cool within 24 h to minus 100 6 Up to 4 in. incl.
185 [1280] 150 [1030] 6 10 41 388 . . . . . .
10°F [75°C], hold not less than 8 [100 mm] (L)
h. Warm in air to room
temperature. Heat to 950°F
[510°C], hold 1 h, air cool.
TH1050 Alternative treatment: 1400°F
[760°C] hold 90 min, cool to 55
6 5°F [15 6 3°C] within 1 h. Up to 6 in. incl [150
170 [1170] 140 [965] 6 25 38 352 . . . . . .
Hold not less than 30 min, heat mm] (L)
to 1050°F [565°C] hold for 90
min, air cool.
632 RH950 Up to 4 in. incl [100
mm] (L) 200 [1380] 175 [1210] 7 25 . . . 415 . . . . . .
Same as Type 631
TH1050 Up to 6 in. incl [150
180 [1240] 160 [1100] 8 25 . . . 375 . . . . . .
mm] (L)
I
634 H1000 1750 [955] for not less than 10
min, but not more than 1 h.
Water quench. Cool to not higher
than minus 100°F [75°C]. Hold 170 [1170] 155 [1070] 12 25 37 341 . . . . . .
for not less than 3 h. Temper at
1000°F [540°C], holdin
...
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