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ASTM A564 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

ASTM A564 specification covers bars and shapes of agehardening 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.
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; 840 °F [450 °C] for Type UNS S46910. 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. Type UNS S46910 is suitable for machining in the solution-annealed, cold-worked, and aged-hardened condition.
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.

Related Specifications of ASTM A564

ASTM A479 ASTM A182 ASTM A693 ASTM A1082

ASTM A564 Chemical Composition

UNS Designation Type C Mn P S Si Cr Ni Al Mo Ti Cu Other Elements
S17400 630 0.07 1.00 0.040 0.030 1.00 15.00-17.50 3.00-5.00 ... ... ... 3.00-5.00 C
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 ... ... ...
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 ... ... D
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 ... ...
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 C
S13800 XM-13 0.05 0.20 0.010 0.008 0.10 12.25-13.25 7.50-S.50 0.90-1.35 2.00-2.50 ... ... E
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 F
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 G
S46500 ... 0.02 0.25 0.015 0.010 0.25 11.00-12.50 10.75-11.25 ... 0.76-1.25 1.50-1.80 ... E
S46910 ... 0.030 1.00 0.030 0.015 0.70 11.0-13.0 8.0-10.0 0.15-0.50 3.0-5.0 0.50-1.20 1.5-3.5 ...
S10120 ... 0.02 0.25 0.015 0.010 0.25 11.00-12.50 9.00-10.50 0.80-1.10 1.75-2.25 0.20-0.50 ... E
S11100 ... 0.02 0.25 0.015 0.010 0.25 11.00-12.50 10.25-11.25 1.35-1.75 1.75-2.25 0.20-0.50 ... E
  • A. Limits are in percent maximum unless shown as a range or stated otherwise.
    B. New designation established in accordance with Practice E527 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.

ASTM A564 Mechanical Requirements

Type Condition Suggested Hardening or Aging Treatment, or BothB,C,D Applicable Thickness, in. and Test DirectionE Tensile Strength, min Yield Strength, minF Elongation in 2 in. [50 mm] or 4D, min. % Reduction of area, min, % HardnessG Impact Charpy-V, min
Temperature, °F [°C] Time, h QuenchH ksi [MPa] ksi [MPa] Rockwell C, min Brinell, min ft·lbf J
630 H900 900 (480] 1 air cool Up to 3 in. incl [75 mm] (L)       40        
Over 3 in. [75 mm] to 8 in. incl [200mm] (T) 190 [1310] 170 [1170] 10 35 40 388 ... ...
H925 925 (495) 4 air cool Up to 3 min. incl [ 75 mm] ( L) 44
Over 3 in. [75 mm] to 8 in. incl [200mm] (T) 170 [1170] 155 [1070] 10 38 38 375 5 6.8
H1025 1025 [550] 4 air cool Up to 8 in. incl [200 mm] (L) 155 [1070] 145 [1000] 12 45 35 331 15 20
H1075 1075 [580] 145 [1000] 125 [860] 13 45 32 311 20 27
H1100 1100 [595] 140 [965] 115 [795] 14 45 31 302 25 34
H1150 1150 [620] 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.     Up to 4 in. incl. [100 mm] (L) 185 [1280] . 150 [1030] 6 10 41 388 ... ...
10°F [75°C], hold not less than 8 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 ± 5°F [15 ± 3°C] within 1 h. Hold not less than 30 min, heat to 1050°F [565°C] hold for 90 min, air cool.     Up to 6 in. incl [150 mm] (L) 170 [1170] 140 [965] 6 25 38 352 ... ...
632 RH950 Same as Type 631     Up to 4 in. incl [100 mm] (L) 200 [1380] 175 [1210] 7 25 ... 415 ... ...
TH1050       Up to 6 in. incl [150 mm] (L) 180 [1240] 160 [1100] 8 25 ... 375 ... ...
634 I 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 for not less than 3 h. Temper at 1000°F [540°C], holding for not less than 3 h.       170 [1170] 155 [1070] 12 25 37 341 ... ...
635 H950 950 (510) 0.5 air cool   190 [1310] 170 [1170] 8 25 39 363 ... ...
H1000 1000 [540] 180 [1240] 160 [1100] 8 30 37 352 ... ...
H1050 1050 [565] 170 [1170] 150 [1035] 10 40 35 331 ... ...
XM-12 H900 900 [480] 1 air cool Up to 12 in. incl [300 mm] (L) 190 [1310] 170 [1170] 10 35 40 388 ...  
Up to 12 in. incl [300 mm] (T) 6 15  
H925 925 [495] 4 air cool Up to 12 in. incl [300 mm] (L) 170 [1170] 155 [1070] 10 38 38 375 5  
Up to 12 in. incl [300 mm] (T) 7 20  
H1025 1025 [550] 4 air cool Up to 12 in. incl [300 mm] (L) 155 [1070] 145 [1000] 12 45 35 331 15  
Up to 12 in. incl [300 mm] (T) 8 27 10  
H1075 1075 [580] 4 air cool Up to 12 in. incl [300 mm] (L) 145 [1000] 125 [860] 13 45 32 311 20  
Up to 12 in. incl [300 mm] (T) 9 28 15  
H1100 1100 [595] 4 air cool Up to 12 in. incl [300 mm] (L) 140 [965] 115 [795] 14 45 31 302 25  
Up to 12 in. incl [300 mm] (T) 10 29 15  
H1150 1150 [620] 4 air cool Up to 12 in. incl [300 mm] (L) 135 [930] 105 [725] 16 50 28 277 30  
Up to 12 in. incl [300 mm] (T) 11 30 20  
H1150M 1400 [760] for 2 h air cool plus Up to 12 in. incl [300 mm] (L) 115 [795] 75 [515] 18 55 24 255 55  
1150 [620] for 4 h air cool Up to 12 in. incl [300 mm] (T) 14 35 35  
XM-13 H950 950 [510] 4 air cool Up to 12 in. incl [300 mm] (L) 220 [1515] 205 [1415] 10 45 45 430 ... ...
Up to 12 in. incl [300 mm] (T) 35
H1000 1000 [540] 4 air cool Up to 12 in. incl [300 mm] (L) 205 [1415] 190 [1310] 10 50 43 400 ... ...
Up to 12 in. incl [300 mm] (T) 10 40
H1025 1025 [550] 4 air cool Up to 12 in. incl [300 mm] (L) 185 [1280] 175 [1210] 11 50 41 380 ... ...
Up to 12 in. incl [300 mm] (T) 45
H1050 1050 [565] 4 air cool Up to 12 in. incl [300 mm] (L) 175 [1210] 165 [1140] 12 50 40 372 ... ...
Up to 12 in. incl [300 mm] (T) 45
H1100 1100 [595] 4 air cool Up to 12 in. incl [300 mm] (L) 150 [1035] 135 [930] 14 50 34 313 ... ...
Up to 12 in. incl [300 mm] (T) 50
H1150 1150 [620] 4 air cool Up to 12 in. incl [300 mm] (L) 135 [930] 90 [620] 14 50 30 283 ... ...
Up to 12 in. incl [300 mm] (T) 50
H1150M M 1400 [760] for 2 h, air cool plus Up to 12 in. incl [300 mm] (L) 125 [860] 85 [585] 16 55 26 259 ... ...
1150 [620] for 4 h, air cool Up to 12 in. incl [300 mm] (T) 55
XM-16 H900 900 [480] 4 air cool Up to 6 in. incl [150 mm] (L) 235 [1620] 220 [1515] 8 30 47 444 ... ...
H950 950 [510] 220 [1515] 205 [1415] 10 40 44 415 ... ...
H1000 1000 [540] 205 [1415] 185 [1275] 10 40 40 363 ... ...
S45503 H900 900 [480] 4 air cool Up to 6 in. incl [150 mm] (L) 235 [1620] 220 [1520] 8 30 47 444 ... ...
Up to 6 in. incl [150 mm] (T)     4 15
H950 950 [510] 4 air cool Up to 6 in. incl [150 mm] (L) 220 [1515] 205 [1410] 10 40 44 415 ... ...
Up to 6 in. incl [150 mm] (T)     5 20
H1000 1000 [540] 4 air cool Up to 6 in. incl [150 mm] (L) 205 [1410] 185 [1275] 10 40 40 363 ... ...
Up to 6 in. incl [150 mm] (T)     6 25
XM-25 H900 900 [480] 4 air cool Up to 12 in. incl [300 mm] (L) 180 [1240] 170 [1170] 10 40 39 363 ... ...
Up to 12 in. incl [300 mm] (T)     6 20
H950 950 [510] 4 air cool Up to 12 in. incl [300 mm] (L) 170 [1170] 160 [1100] 10 40 37 341 ... ...
Up to 12 in. incl [300 mm] (T)     7 22
H1000 1000 [540] 4 air cool Up to 12 in. incl [300 mm] (L) 160 [1100] 150 [1035] 12 45 36 331 ... ...
Up to 12 in. incl [300 mm] (T)     8 27
H1025 1025 [550] 4 air cool Up to 8 in. incl [200 mm] 150 [1035] 140 [965] 12 45 34 321 ... ...
H1050 1050 [565] 4 air cool Up to 12 in. incl [300 mm] (L) 145 [1000] 135 [930] 12 45 34 321 ... ...
Up to 12 in. incl [300 mm] (T) 9 30
H1100 1100 [595] 4 air cool Up to 12 in. incl [300 mm] (L) 130 [895] 105 [725] 16 50 30 285 ... ...
Up to 12 in. incl [300 mm] (T) 11 30
H1150 1150 [620] 4 air cool Up to 12 in. incl [300 mm] (L) 125 [860] 75 [515] 18 55 26 262 ... ...
Up to 12 in. incl [300 mm] (T) 12 35
S46500 H950 950 [510] 4 air cool Up to 12 in. incl [300 mm] (L) 240 [1655] 220 [1515] 10 45 47 444 ... ...
Up to 12 in. incl [300 mm] (T) 8 35
H1000 1000 [540] 4 air cool Up to 12 in. incl [300 mm] (L) 220 [1515] 200 [1380] 10 50 45 430 ... ...
Up to 12 in. incl [300 mm] (T) 10 40
H1025 1025 [560] 4 air cool Up to 12 in. incl [300 mm] (L) 210 [1450] 195 [1345] 12 50 44 415 ... ...
Up to 12 in. incl [300 mm] (T) 11 45
H1050 1050 [565] 4 air cool Up to 12 in. incl [300 mm] (L) 200 [1380] 185 [1280] 13 50 43 400 ... ...
Up to 12 in. incl [300 mm] (T) 12 45
S46910 CW 1⁄2 hard + aging 890 [475] 1 Air cool . . . 245 [1690] 218 [1500] 6 ... 48 456 ... ...
CW full hard + aging 890 [475] 1 Air cool . . . 320 [2205] 290 [2005] 2 . . . 55 561 ... ...
S10120 H950 950 [510] 4 air cool Up to 12 in. incl [300 mm] (L) 203 [1400] 189 [1300] 10 50 43 401 ... ...
Up to 12 in. incl [300 mm] (T) 9 45
S11100 H900 900 [480] J air or oil or water Up to 12 in. incl [300 mm] (L) 247 [1700] 231 [1590] 11 43 47 448 ... ...
H950 950 [510] 8 air or oil or water Up to 12 in. incl [300 mm] (L) 240 [1655] 220 [1517] 10 45 47 448 ... ...
Up to 12 in. incl [300 mm] (T) 8 35
H1000 1000 [540] 8 air or oil or water Up to 12 in. incl [300 mm] (L) 220 [1517] 200 [1378] 10 50 45 426 ... ...
Up to 12 in. incl [300 mm] (T) 10 40
  • B. Time refers to minimum time material is at temperature and may be extended to obtain required ductility properties.
    C. Unless otherwise noted, temperatures shown are suggested temperatures and may be varied to obtain required tensile properties.
    D. Intermediate temperatures must meet the ductility requirements of the next highest suggested hardening or aging temperature, or both. Example: Type 630 at 1050°F [565°C] must have 13 % elongation and 45 % reduction, same as for age hardening at 1075°F [580°C].
    E. (L) - Longitudinal axis of specimen parallel to direction of grain flow during rolling or forging. (T) - Transverse axis of specimen perpendicular to direction of grain flow during rolling or forging.
    G. Either Rockwell C hardness or Brinell is permissible. On sizes 1⁄2 in. (12.70 mm) and smaller, Rockwell C is preferred.
    H. When air cooling is specified, gases other than air may be used.
    I. for details on equalize and over temper heat treatment.
    J. For the H900 condition of S11100, the duration set up between 4 and 8 hours.

ASTM A564 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103