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This specification2 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.
| UNS Designation | Type | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel | Aluminum | Molybdenum | Titanium | Copper | 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 |
Note :
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.
| 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] | 1.0 | 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) | 4.0 | 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] | 4.0 | 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 | … | … | ||||
| 634I | 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] | 1.0 | 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] | 4.0 | air cool | Up to 12 in. incl [300 mm] (L) | 170 [1170] | 155 [1070] | 10 | 38 | 38 | 375 | 5 | 6.8 | |
| Up to 12 in. incl [300 mm] (T) | 7 | 20 | |||||||||||
| H1025 | 1025 [550] | 4.0 | air cool | Up to 12 in. incl [300 mm] (L) | 155 [1070] | 145 [1000] | 12 | 45 | 35 | 331 | 15 | 20 | |
| Up to 12 in. incl [300 mm] (T) | 8 | 27 | 10 | 14 | |||||||||
| H1075 | 1075 [580] | 4.0 | air cool | Up to 12 in. incl [300 mm] (L) | 145 [1000] | 125 [860] | 13 | 45 | 32 | 311 | 20 | 27 | |
| Up to 12 in. incl [300 mm] (T) | 9 | 28 | 15 | 20 | |||||||||
| H1100 | 1100 [595] | 4.0 | air cool | Up to 12 in. incl [300 mm] (L) | 140 [965] | 115 [795] | 14 | 45 | 31 | 302 | 25 | 34 | |
| Up to 12 in. incl [300 mm] (T) | 10 | 29 | 15 | 20 | |||||||||
| H1150 | 1150 [620] | 4.0 | air cool | Up to 12 in. incl [300 mm] (L) | 135 [930] | 105 [725] | 16 | 50 | 28 | 277 | 30 | 41 | |
| Up to 12 in. incl [300 mm] (T) | 11 | 30 | 20 | 27 | |||||||||
| 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 | 75 | |
| 1150 [620] | for 4 h | air cool | Up to 12 in. incl [300 mm] (T) | 14 | 35 | 35 | 47 | ||||||
| XM-13 | H950 | 950 [510] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | air cool | Up to 8 in. incl [200 mm] | 150 [1035] | 140 [965] | 12 | 45 | 34 | 321 | … | … | |
| H1050 | 1050 [565] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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] | 4.0 | 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 | |||||||||||
| UNS S46910 | CW 1⁄2 hard + aging | 890 [475] | 1.0 | Air cool | . . . | 245 [1690] | 218 [1500] | 6 | … | 48 | 456 | … | … |
| CW full hard + aging | 890 [475] | 1.0 | Air cool | . . . | 320 [2205] | 290 [2005] | 2 | . . . | 55 | 561 | … | … | |
| S10120 | H950 | 950 [510] | 4.0 | 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] | 8.0 | 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] | 8.0 | 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 | |||||||||||
Note :
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.