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Cobalt Base Alloys

Cobalt Base Alloys
Alloy Specification Carbon Min-Max Manganese Min-Max Silicon Min-Max Chromium Min-Max Nickel Min-Max Molybdenum Min-Max Tungsten Min-Max Cobalt Min-Max Iron Min-Max Other Melting Range 0F
Co Alloy #3   2.00-2.70 1.00 1.00 29.0 -33.0 3.00   11.0 -14.0 Bal. 3.00 P, .03 Max.; S, .03 Max. 2215-2345
Co Alloy #4   1.00 1.00 1.50 28.0 -32.0 3.00 1.50 12.5 -15.5 Bal. 3.00   2275-2475
Co Alloy #6 AMS 5387B .90-1.40 1.00 1.50 27.0 -31.0 3.00 1.50 3.50 -5.50 Bal. 3.00 P, .04 Max.; S, .04 Max. 2300-2475
AMS 5373 C .90-1.40 1.00 1.50 27.0 -31.0 3.00 1.50 3.50 -5.50 Bal. 3.00 P, .04 Max.; S, .03 Max. 2300-2475
Co Alloy #12   1.10-1.70 1.00 1.00 28.0 -32.0 3.00   7.00- 9.50 Bal. 3.00 P, .03 Max.; S, .03 Max. 2290-2445
Co Alloy #19   1.50-2.10 1.00 1.00 29.5 -32.5 3.00   9.50-11.5 Bal. 3.00 P, .03 Max.; S, .03 Max. 2260-2370
Co Alloy #21 AMS 5385F .20- .30 1.00 1.00 25.0 -29.0 1.75- 3.75 5.00- 6.00   Bal. 3.00 P, .04 Max.; S, .04 Max.; B, .007 Max. 2440-2490
ASTM A-732 GR 21 .20- .30 1.00 1.00 25.0 -29.0 1.75- 3.75 5.00- 6.00   Bal. 3.00 P, .04 Max.; S, .04 Max.; B, .007 Max. 2440-2490
ASTM A-567 
GR 1 (Discont. 1987)
.20- .30 1.00 1.00 25.0 -29.0 1.75- 3.75 5.00- 6.00   Bal. 3.00 P, .04 Max.; S, .04 Max.; B, .007 Max. 2440-2490
Co Alloy #23 AMS 5375D .35- .45 1.00 1.00 23.0 -27.0 .50- 3.00 1.00 4.00- 6.00 Bal. 2.00 P, .04 Max.; S, .03 Max. 2350-2475
Co Alloy #25 H.S. 25 (L605) .05- .15 1.0 -2.0 1.0 19.0 -21.0 9.0 -11.0   14.0 -16.0 Bal. 3.0 P, .04 Max.; S, .04 Max. 2425-2570
Co Alloy #27 AMS 5378D .35- .45 1.00 1.00 23.0 -26.0 30.0 -35.0 4.50- 6.50   Bal. 2.00 P, .04 Max.; S, .03 Max.  
Co Alloy #30 AMS 5380E .40- .50 1.00 1.00 24.0 -28.0 14.0 -16.0 5.50- 6.50   Bal. 2.00 P, .04 Max.; S, .03 Max.  
Co Alloy #31 AMS 5382G .45- .55 1.00 1.00 24.5 -26.5 9.50-11.5 .50 7.0 - 8.0 Bal. 2.00 P, .04 Max.; S, .04 Max. 2445-2545
ASTM A-732 GR-31 .45- .55 1.00 1.00 24.5 -26.5 9.50-11.50   7.00- 8.00 Bal. 2.00 P, .04 Max.; S, .04 Max. B, .005-.015 2445-2555
Co Alloy #36   .35- .45 1.0 -1.5 .35 17.5 -19.5 9.0 -11.0   14.0 -15.0 Bal. 2.0 P, .03 Max.; S, .03 Max. B, .01-.50 2425-2570
Alloy #93   2.5 -3.25 1.5 1.5 15.0 -19.0   14.0 -18.0   4.0 - 7.0 Bal. P, .03 Max.; S, .03 Max. V, 1.50-2.50  
Co Alloy #400   .04- .08   2.2 -2.6 7.5 - 8.5   27.0 -29.0   60.0 -63.0   P, .03 Max.; S, .03 Max.; Ni + Fe, 3.0 Max.; N2, .05 Max.; O2, .05 Max. 2250-2900
Co Alloy #800   .04- .08   3.0 -3.5 16.5 -17.5   27.0 -29.0   50.0 -53.0   P, .03 Max.; S, .03 Max.; Ni + Fe, 3.0 Max.; N2, .05 Max.; O2, .05 Max. 2250-2900
Co Alloy X-40 ASTM A-567 GR2 (Discontinued - 1987) .45- .55 1.00 1.00 24.5 -26.5 9.50-11.5   7.00- 8.00 Bal. 2.00 P, .04 Max.; S, .04 Max. B, .005-.015 2445-2545
Co Alloy X-45 ASTM A-567 GR13(Discontinued - 1987) .20- .30 .40-1.00 .75-1.00 24.5 -26.5 9.50-11.5   7.00- 8.00 Bal. 2.00 P, .04 Max.; S, .04 Max. B, .005-.015 2445-2545
Co Alloy Misc. ASTM A-567 GR11 (Discontinued - 1987) .32- .42 2.00 1.00 18.0 -22.0 18.0-22.0 3.50- 5.00 3.50- 6.00 38.0 6.00 P, .03 Max.; S, .03 Max.; Cb/Ta, 3.00-4.50 2450-2550
Co. Alloy Misc. ASTM A-567 GR12 (Discontinued - 1987) .20- .30 .40- .60 .75-1.00 28.5 -30.5 9.50-11.5   6.50- 7.50 Bal. 2.00 P, .04 Max.; S,.04 Max.; B, .005-.015 2450-2550
STAR J 2.20- 2.70 1.00 1.00 31.0 -34.0 2.50   16.0 -19.0 Bal. 3.00 P, .03 Max.; S,.03 Max.; B,.25 Max.; All Other,2.0 Max. 2220-2370
98M2 1.70-2.20 1.00 1.00 28.0 -32.0 2.00-5.00 .80 17.0 -20.0 Bal. 2.50 B, .070-1.50; V, 3.70-4.70 2235-2328
WI-52 .40- .50 .50 .50 20.0 -22.0 1.00   10.0 - 12.0 Bal. 1.00-2.50 P, .04 Max.; S, .04 Max.; Cb/Ta, 1.50-2.50 2400-2450
ASTM F-75 .35 1.00 1.00 27.0 -30.0 1.00 5.0- 7.0   Bal. .75   2400-2450
TANTUNG G 1.8-2.2     26.0 -29.0     15.0 -17.0 Bal. 2.0 B, .15-25;Ta, 4.5-5.5  
  HAYNES ULTIMET®ALLOY UNS-R31233 0.02-0.10 0.1-1.5 0.05-1.00 23.5-27.5 7.0-11.0 4.0-6.0 1.0-3.0 Bal. 1.0-5.0 P, 0.030 Max.; 
S, 0.020 Max.; 
N, 0.033 - 0.12
B, 0.015 Max.
2530-2582




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