Haynes 188 is a cobalt-based alloy which possesses a unique combination of properties. It has excellent high temperature strength and oxidation resistance to 2100°F (1150°C) combined with good post-aging ductility.
Alloy 188 has average room temperature tensile properties in the bright annealed condition of 137.2 ksi (946 MPa) ultimate strength, 67.3 ksi (464 MPa) yield strength and 53% elongation. At 1800°F (980°C) the alloy has ultimate and yield strengths of 35.2 ksi (243 MPa) and 19.0 ksi (131 MPa), respectively, with 59% elongation. Cryogenic temperatures do not significantly affect the ductility of alloy 188, but strength levels are increased markedly.
The excellent oxidation resistance of Haynes 188 results from minute additions of lanthanum, which modifies the protective oxide scale in such a manner that the oxide becomes extremely tenacious and retards diffusion when exposed to temperatures through 2100°F (1150°C).
Haynes 188 exhibits good ductility after prolonged exposure at temperatures of 1200, 1400, and 1600°F (650, 760 and 870°C) for 16,000 hours.
| ALLOY | SIZE | WEIGHT |
|---|---|---|
| CURRENT PLATE INVENTORY | ||
| Alloy 188 | 0.187 X 36.000 X 144.000 4.7498MM X 914.4 X 3657.6 | 2213 LBS 1004 KG |
| Alloy 188 | 0.250 X 6.000 X 5.500 6.35MM X 152.4 X 139.7 | 11 LBS 5 KG |
| Alloy 188 | 0.250 X 48.000 X 14.875 6.35MM X 1219.2 X 377.825 | 67 LBS 30 KG |
| Alloy 188 | 0.250 X 48.000 X 144.000 6.35MM X 1219.2 X 3657.6 | 1056 LBS 479 KG |
| Alloy 188 - DUE DATE: 12-26-21 | 0.250 X 48.000 X 144.000 6.35MM X 1219.2 X 3657.6 | 2444 LBS 1109 KG |
| Alloy 188 - DUE DATE: 04-23-22 | 0.250 X 48.001 X 200.000 6.35MM X 1219.2254 X 5080 | 3392 LBS 1539 KG |
| Alloy 188 - DUE DATE: 10-12-21 | 0.250 X 48.010 X 144.010 6.35MM X 1219.454 X 3657.854 | 2444 LBS 1109 KG |
| Alloy 188 | 0.375 X 1.750 X 17.000 9.525MM X 44.45 X 431.8 | 5 LBS 2 KG |
| Alloy 188 | 0.375 X 5.250 X 28.375 9.525MM X 133.35 X 720.725 | 21 LBS 10 KG |
| Alloy 188 | 0.375 X 45.250 X 5.375 9.525MM X 1149.35 X 136.525 | 119 LBS 54 KG |
| Alloy 188 | 0.500 X 48.000 X 188.000 12.7MM X 1219.2 X 4775.2 | 1181 LBS 536 KG |
| Alloy 188 | 0.500 X 48.000 X 190.125 12.7MM X 1219.2 X 4829.175 | 1648 LBS 748 KG |
| Alloy 188 | 0.500 X 48.000 X 200.000 12.7MM X 1219.2 X 5080 | 1699 LBS 771 KG |
| Alloy 188 - DUE DATE: 04-22-22 | 0.500 X 48.000 X 200.000 12.7MM X 1219.2 X 5080 | 3198 LBS 1451 KG |
| Alloy 188 | 0.750 X 43.875 X 108.125 19.05MM X 1114.425 X 2746.375 | 1250 LBS 567 KG |
| Alloy 188 | 0.750 X 48.000 X 2.000 19.05MM X 1219.2 X 50.8 | 27 LBS 12 KG |
| Alloy 188 | 0.750 X 48.000 X 168.000 19.05MM X 1219.2 X 4267.2 | 2216 LBS 1005 KG |
| Alloy 188 - DUE DATE: 12-26-21 | 0.750 X 48.000 X 168.000 19.05MM X 1219.2 X 4267.2 | 3976 LBS 1803 KG |
| Alloy 188 - DUE DATE: 04-23-22 | 0.750 X 48.001 X 168.000 19.05MM X 1219.2254 X 4267.2 | 3976 LBS 1803 KG |
| Alloy 188 | 1.000 X 14.500 X 6.000 25.4MM X 368.3 X 152.4 | 31 LBS 14 KG |
| Alloy 188 | 1.000 X 48.000 X 168.000 25.4MM X 1219.2 X 4267.2 | 2756 LBS 1250 KG |
| Alloy 188 | 1.000 X 48.250 X 64.125 25.4MM X 1225.55 X 1628.775 | 1328 LBS 602 KG |
| Alloy 188 | 1.250 X 48.000 X 144.000 31.75MM X 1219.2 X 3657.6 | 3154 LBS 1431 KG |
| Alloy 188 | 1.500 X 4.750 X 33.625 38.1MM X 120.65 X 854.075 | 179 LBS 81 KG |
| Alloy 188 | 1.500 X 48.000 X 25.500 38.1MM X 1219.2 X 647.7 | 901 LBS 409 KG |
| Alloy 188 | 1.500 X 48.000 X 160.000 38.1MM X 1219.2 X 4064 | 3913 LBS 1775 KG |
| Alloy 188 - DUE DATE: 04-23-22 | 1.500 X 49.000 X 200.000 38.1MM X 1244.6 X 5080 | 4735 LBS 2148 KG |
| Alloy 188 | 2.000 X 3.000 X 3.630 50.8MM X 76.2 X 92.202 | 10 LBS 5 KG |
| Alloy 188 | 2.000 X 5.250 X 5.500 50.8MM X 133.35 X 139.7 | 30 LBS 14 KG |
| Alloy 188 | 2.000 X 15.250 X 30.625 50.8MM X 387.35 X 777.875 | 568 LBS 258 KG |
| Alloy 188 - DUE DATE: 10-12-21 | 2.000 X 48.000 X 96.000 50.8MM X 1219.2 X 2438.4 | 2925 LBS 1327 KG |
| CURRENT BAR INVENTORY | ||
| Alloy 188 | 0.385 DIA X 132"RL 9.779MM DIA | 1034 LBS 469 KG |
| Alloy 188 | 0.510 DIA X 165"RL 12.954MM DIA | 564 LBS 256 KG |
| Alloy 188 | 0.510 DIA X 97-157" RL 12.954MM DIA | 1273 LBS 577 KG |
| Alloy 188 | 0.760 DIA X 100-166" RL 19.304MM DIA | 2122 LBS 963 KG |
| Alloy 188 | 0.760 DIA X 129-170" RL 19.304MM DIA | 464 LBS 210 KG |
| Alloy 188 | 0.760 DIA X 137-162" RL 19.304MM DIA | 2026 LBS 919 KG |
| Alloy 188 | 1.010 DIA X 136-171" RL 25.654MM DIA | 1428 LBS 648 KG |
| Alloy 188 - DUE DATE: 11-21-21 | 1.010 DIA X 160" RL 25.654MM DIA | 2000 LBS 907 KG |
| Alloy 188 | 1.135 DIA X 127-140 RL 28.829MM DIA | 627 LBS 284 KG |
| Alloy 188 | 1.260 DIA X 133-146 RL 32.004MM DIA | 277 LBS 126 KG |
| Alloy 188 | 1.260 DIA X 137-157" RL 32.004MM DIA | 1091 LBS 495 KG |
| Alloy 188 | 1.385 DIA X 108-149" RL 35.179MM DIA | 684 LBS 310 KG |
| Alloy 188 | 1.385 DIA X 120-149" RL 35.179MM DIA | 1004 LBS 455 KG |
| Alloy 188 | 1.510 DIA X 38.354MM DIA | 2237 LBS 1015 KG |
| Alloy 188 | 1.510 DIA X 16-155" RL 38.354MM DIA | 464 LBS 210 KG |
| Alloy 188 | 1.760 DIA X 160" RL 44.704MM DIA | 1949 LBS 884 KG |
| Alloy 188 | 1.760 DIA X 177" RL 44.704MM DIA | 551 LBS 250 KG |
| Alloy 188 | 2.010 DIA X 113-152" RL 51.054MM DIA | 1953 LBS 886 KG |
| Alloy 188 | 2.010 DIA X 121-167" RL 51.054MM DIA | 1599 LBS 725 KG |
| Alloy 188 | 2.010 DIA X 121-172" RL 51.054MM DIA | 1676 LBS 760 KG |
| Alloy 188 | 2.010 DIA X 142-160"RL 51.054MM DIA | 896 LBS 406 KG |
| Alloy 188 | 2.010 DIA X 160" RL 51.054MM DIA | 1772 LBS 804 KG |
| Alloy 188 | 2.010 DIA X 3.625 51.054MM DIA | 4 LBS 2 KG |
| Alloy 188 | 2.260 DIA X 100-143 RL 57.404MM DIA | 2128 LBS 965 KG |
| Alloy 188 | 2.260 DIA X 114-143" RL 57.404MM DIA | 3108 LBS 1410 KG |
| Alloy 188 | 2.510 DIA X 101-115" RL 63.754MM DIA | 2497 LBS 1133 KG |
| Alloy 188 | 2.510 DIA X 139-142"RL+30" 63.754MM DIA | 704 LBS 319 KG |
| Alloy 188 | 2.510 DIA X 160" RL 63.754MM DIA | 4670 LBS 2118 KG |
| Alloy 188 | 2.515 DIA X 1.875 63.881MM DIA | 2 LBS 1 KG |
| Alloy 188 | 2.750 DIA X 119-150" RL 69.85MM DIA | 2139 LBS 970 KG |
| Alloy 188 | 2.760 DIA X 129 RL 70.104MM DIA | 504 LBS 229 KG |
| Alloy 188 - DUE DATE: 12-01-21 | 2.760 DIA X 160" RL 70.104MM DIA | 3000 LBS 1361 KG |
| Alloy 188 | 2.760 DIA X 5.375 70.104MM DIA | 11 LBS 5 KG |
| Alloy 188 | 2.760 DIA X 11.75 70.104MM DIA | 23 LBS 10 KG |
| Alloy 188 | 3.020 DIA X 1" 76.708MM DIA | 3 LBS 1 KG |
| Alloy 188 | 3.020 DIA X 114-142" RL 76.708MM DIA | 2797 LBS 1269 KG |
| Alloy 188 | 3.020 DIA X 142-170" RL 76.708MM DIA | 1169 LBS 530 KG |
| Alloy 188 | 3.520 DIA X 1.625 89.408MM DIA | 4 LBS 2 KG |
| Alloy 188 | 3.520 DIA X 115" RL 89.408MM DIA | 3052 LBS 1384 KG |
| Alloy 188 | 3.520 DIA X 160" RL 89.408MM DIA | 1007 LBS 457 KG |
| Alloy 188 | 4.020 DIA X 105.875 102.108MM DIA | 438 LBS 199 KG |
| Alloy 188 | 4.020 DIA X 160 RL 102.108MM DIA | 2732 LBS 1239 KG |
| Alloy 188 | 4.020 DIA X 162-182RL+80.2 102.108MM DIA | 2850 LBS 1293 KG |
| Alloy 188 | 4.645 DIA X 149-157" RL 117.983MM DIA | 3433 LBS 1557 KG |
| Alloy 188 | 4.645 DIA X 155.375 + 61.1 117.983MM DIA | 1212 LBS 550 KG |
| Alloy 188 | 4.645 DIA X 158.2 + 140.6 117.983MM DIA | 1666 LBS 756 KG |
| Alloy 188 | 4.645 DIA X 3.125 + 1.625 117.983MM DIA | 28 LBS 13 KG |
| Alloy 188 | 4.645 DIA X 7.125 117.983MM DIA | 40 LBS 18 KG |
| Alloy 188 | 6.625 DIA X 191.250 168.275MM DIA | 4396 LBS 1994 KG |
| Alloy 188 | 6.625 DIA X 193.62 + 85.3 168.275MM DIA | 3185 LBS 1445 KG |
| Alloy 188 | 6.645 DIA X 160" RL 168.783MM DIA | 4028 LBS 1827 KG |
| CURRENT SHEET INVENTORY | ||
| Alloy 188 | 0.008 X 7.750 X 9999.000 0.2032MM X 196.85 X 253974.6 | 227 LBS 103 KG |
| Alloy 188 - DUE DATE: 04-05-22 | 0.008 X 8.000 X 9999.000 0.2032MM X 203.2 X 253974.6 | 1800 LBS 816 KG |
| Alloy 188 | 0.010 X 7.000 X 9999.000 0.254MM X 177.8 X 253974.6 | 778 LBS 353 KG |
| Alloy 188 - DUE DATE: 02-23-22 | 0.010 X 8.000 X 9999.000 0.254MM X 203.2 X 253974.6 | 1250 LBS 567 KG |
| Alloy 188 | 0.010 X 12.000 X 9999.000 0.254MM X 304.8 X 253974.6 | 12 LBS 5 KG |
| Alloy 188 | 0.012 X 7.875 X 9999.000 0.3048MM X 200.025 X 253974.6 | 304 LBS 138 KG |
| Alloy 188 - DUE DATE: 04-02-22 | 0.012 X 8.000 X 9999.000 0.3048MM X 203.2 X 253974.6 | 1800 LBS 816 KG |
| Alloy 188 | 0.016 X 36.000 X 120.000 0.4064MM X 914.4 X 3048 | 3788 LBS 1718 KG |
| Alloy 188 | 0.020 X 36.000 X 120.000 0.508MM X 914.4 X 3048 | 5956 LBS 2702 KG |
| Alloy 188 | 0.025 X 36.000 X 120.000 0.635MM X 914.4 X 3048 | 6 LBS 3 KG |
| Alloy 188 - DUE DATE: 11-04-21 | 0.025 X 36.000 X 120.000 0.635MM X 914.4 X 3048 | 4000 LBS 1814 KG |
| Alloy 188 - DUE DATE: 04-03-22 | 0.025 X 36.001 X 120.010 0.635MM X 914.4254 X 3048.254 | 4000 LBS 1814 KG |
| Alloy 188 | 0.032 X 36.000 X 120.000 0.8128MM X 914.4 X 3048 | 8490 LBS 3851 KG |
| Alloy 188 | 0.040 X 36.000 X 120.000 1.016MM X 914.4 X 3048 | 129 LBS 59 KG |
| Alloy 188 - DUE DATE: 12-01-21 | 0.040 X 36.000 X 120.000 1.016MM X 914.4 X 3048 | 4000 LBS 1814 KG |
| Alloy 188 - DUE DATE: 01-04-22 | 0.040 X 36.001 X 120.000 1.016MM X 914.4254 X 3048 | 4000 LBS 1814 KG |
| Alloy 188 - DUE DATE: 04-16-22 | 0.040 X 36.002 X 120.000 1.016MM X 914.4508 X 3048 | 4000 LBS 1814 KG |
| Alloy 188 | 0.050 X 36.000 X 120.000 1.27MM X 914.4 X 3048 | 2280 LBS 1034 KG |
| Alloy 188 | 0.055 X 48.000 X 120.000 1.397MM X 1219.2 X 3048 | 114 LBS 52 KG |
| Alloy 188 - DUE DATE: 10-27-21 | 0.057 X 36.000 X 120.000 1.4478MM X 914.4 X 3048 | 4000 LBS 1814 KG |
| Alloy 188 | 0.063 X 36.000 X 87.375 1.6002MM X 914.4 X 2219.325 | 65 LBS 29 KG |
| Alloy 188 - DUE DATE: 04-16-22 | 0.063 X 36.000 X 120.000 1.6002MM X 914.4 X 3048 | 4000 LBS 1814 KG |
| Alloy 188 | 0.071 X 36.000 X 120.000 1.8034MM X 914.4 X 3048 | 3478 LBS 1578 KG |
| Alloy 188 | 0.080 X 5.000 X 10.000 2.032MM X 127 X 254 | 6 LBS 3 KG |
| Alloy 188 | 0.080 X 36.000 X 120.000 2.032MM X 914.4 X 3048 | 3023 LBS 1371 KG |
| Alloy 188 - DUE DATE: 11-30-21 | 0.080 X 36.000 X 120.000 2.032MM X 914.4 X 3048 | 8000 LBS 3629 KG |
| Alloy 188 | 0.093 X 36.000 X 120.000 2.3622MM X 914.4 X 3048 | 6513 LBS 2954 KG |
| Alloy 188 | 0.100 X 36.000 X 120.000 2.54MM X 914.4 X 3048 | 5000 LBS 2268 KG |
| Alloy 188 | 0.125 X 36.000 X 120.000 3.175MM X 914.4 X 3048 | 6914 LBS 3136 KG |
| Alloy 188 - DUE DATE: 11-06-21 | 0.125 X 36.000 X 120.000 3.175MM X 914.4 X 3048 | 8000 LBS 3629 KG |
| Alloy 188 - DUE DATE: 10-11-21 | 0.159 X 36.000 X 120.000 4.0386MM X 914.4 X 3048 | 3000 LBS 1361 KG |