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 | 2003 LBS 909 KG |
| Alloy 188 | 0.250 X 48.000 X 143.125 6.35MM X 1219.2 X 3635.375 | 640 LBS 290 KG |
| Alloy 188 | 0.250 X 48.000 X 144.000 6.35MM X 1219.2 X 3657.6 | 2040 LBS 925 KG |
| Alloy 188 - DUE DATE: 01-01-23 | 0.250 X 48.000 X 144.000 6.35MM X 1219.2 X 3657.6 | 1222 LBS 554 KG |
| Alloy 188 | 0.250 X 48.000 X 200.250 6.35MM X 1219.2 X 5086.35 | 1869 LBS 848 KG |
| Alloy 188 - DUE DATE: 12-27-22 | 0.250 X 48.001 X 200.000 6.35MM X 1219.2254 X 5080 | 1550 LBS 703 KG |
| Alloy 188 | 0.250 X 48.010 X 144.010 6.35MM X 1219.454 X 3657.854 | 1324 LBS 601 KG |
| Alloy 188 | 0.375 X 5.250 X 3.750 9.525MM X 133.35 X 95.25 | 3 LBS 1 KG |
| Alloy 188 | 0.375 X 48.000 X 151.500 9.525MM X 1219.2 X 3848.1 | 1011 LBS 459 KG |
| Alloy 188 | 0.375 X 48.000 X 200.000 9.525MM X 1219.2 X 5080 | 1364 LBS 619 KG |
| Alloy 188 - DUE DATE: 01-16-23 | 0.375 X 48.000 X 200.020 9.525MM X 1219.2 X 5080.508 | 7366 LBS 3341 KG |
| Alloy 188 | 0.500 X 48.000 X 200.000 12.7MM X 1219.2 X 5080 | 3346 LBS 1518 KG |
| Alloy 188 - DUE DATE: 05-11-23 | 0.500 X 48.000 X 200.000 12.7MM X 1219.2 X 5080 | 3198 LBS 1451 KG |
| Alloy 188 - DUE DATE: 01-16-23 | 0.500 X 48.000 X 200.010 12.7MM X 1219.2 X 5080.254 | 3198 LBS 1451 KG |
| Alloy 188 | 0.750 X 4.250 X 11.630 19.05MM X 107.95 X 295.402 | 18 LBS 8 KG |
| Alloy 188 | 0.750 X 48.000 X 13.125 19.05MM X 1219.2 X 333.375 | 230 LBS 104 KG |
| Alloy 188 | 0.750 X 48.000 X 168.000 19.05MM X 1219.2 X 4267.2 | 6445 LBS 2923 KG |
| Alloy 188 - DUE DATE: 03-16-23 | 0.750 X 48.002 X 168.000 19.05MM X 1219.2508 X 4267.2 | 3976 LBS 1803 KG |
| Alloy 188 | 0.750 X 48.003 X 167.875 19.05MM X 1219.2762 X 4264.025 | 2129 LBS 966 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 48.125 X 19.500 25.4MM X 1222.375 X 495.3 | 433 LBS 196 KG |
| Alloy 188 - DUE DATE: 02-24-23 | 1.000 X 49.000 X 200.000 25.4MM X 1244.6 X 5080 | 3187 LBS 1446 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 4.375 X 14.625 38.1MM X 111.125 X 371.475 | 50 LBS 23 KG |
| Alloy 188 | 1.500 X 32.000 X 18.750 38.1MM X 812.8 X 476.25 | 351 LBS 159 KG |
| Alloy 188 | 1.500 X 49.000 X 8.625 38.1MM X 1244.6 X 219.075 | 223 LBS 101 KG |
| Alloy 188 - DUE DATE: 02-16-23 | 1.500 X 49.000 X 200.000 38.1MM X 1244.6 X 5080 | 4735 LBS 2148 KG |
| Alloy 188 - DUE DATE: 06-21-23 | 1.500 X 49.000 X 200.010 38.1MM X 1244.6 X 5080.254 | 4735 LBS 2148 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 7.000 X 11.000 50.8MM X 177.8 X 279.4 | 568 LBS 258 KG |
| Alloy 188 | 2.000 X 48.000 X 20.500 50.8MM X 1219.2 X 520.7 | 687 LBS 312 KG |
| ALLOY | SIZE | WEIGHT |
|---|---|---|
| CURRENT BAR INVENTORY | ||
| Alloy 188 | 0.385 DIA X 127-162" RL 9.779MM DIA | 723 LBS 328 KG |
| Alloy 188 | 0.510 DIA X 129-157"RL 12.954MM DIA | 1087 LBS 493 KG |
| Alloy 188 - DUE DATE: 10-16-23 | 0.510 DIA X 160"RL 12.954MM DIA | 1000 LBS 454 KG |
| Alloy 188 | 0.760 DIA X 100-166" RL 19.304MM DIA | 2122 LBS 963 KG |
| Alloy 188 | 0.760 DIA X 137-162" RL 19.304MM DIA | 1175 LBS 533 KG |
| Alloy 188 - DUE DATE: 04-26-23 | 1.010 DIA X 160 RL 25.654MM DIA | 2000 LBS 907 KG |
| Alloy 188 - DUE DATE: 10-23-23 | 1.010 DIA X 161 RL 25.654MM DIA | 2000 LBS 907 KG |
| Alloy 188 - DUE DATE: 11-08-23 | 1.010 DIA X 162 RL 25.654MM DIA | 2000 LBS 907 KG |
| Alloy 188 | 1.010 DIA X 168" RL + 27.8 25.654MM DIA | 1490 LBS 676 KG |
| Alloy 188 | 1.135 DIA X 134.25+134.125 28.829MM DIA | 88 LBS 40 KG |
| Alloy 188 - DUE DATE: 01-26-23 | 1.135 DIA X 160 RL 28.829MM DIA | 1500 LBS 680 KG |
| Alloy 188 - DUE DATE: 01-26-23 | 1.197 DIA X 160 RL 30.4038MM DIA | 1500 LBS 680 KG |
| Alloy 188 | 1.260 DIA X 137-157" RL 32.004MM DIA | 1091 LBS 495 KG |
| Alloy 188 | 1.260 DIA X 145" + 86.5" 32.004MM DIA | 98 LBS 44 KG |
| Alloy 188 | 1.385 DIA X 120-149" RL 35.179MM DIA | 1004 LBS 455 KG |
| Alloy 188 | 1.385 DIA X 129-149RL+72.2 35.179MM DIA | 321 LBS 146 KG |
| Alloy 188 | 1.510 DIA X 38.354MM DIA | 2237 LBS 1015 KG |
| Alloy 188 | 1.510 DIA X 114.750 + 16 38.354MM DIA | 78 LBS 35 KG |
| Alloy 188 | 1.760 DIA X 140-172" RL 44.704MM DIA | 1650 LBS 748 KG |
| Alloy 188 | 1.760 DIA X 160" RL 44.704MM DIA | 595 LBS 270 KG |
| Alloy 188 - DUE DATE: 12-21-22 | 1.760 DIA X 160" RL 44.704MM DIA | 1500 LBS 680 KG |
| Alloy 188 | 2.010 DIA X **SOLD OUT** 51.054MM DIA | 1 LBS 0 KG |
| Alloy 188 - DUE DATE: 12-08-23 | 2.010 DIA X 160 RL 51.054MM DIA | 4000 LBS 1814 KG |
| Alloy 188 | 2.010 DIA X 3.625 51.054MM DIA | 4 LBS 2 KG |
| Alloy 188 - DUE DATE: 10-23-23 | 2.260 DIA X 160" RL 57.404MM DIA | 3000 LBS 1361 KG |
| Alloy 188 | 2.510 DIA X 101-115" RL 63.754MM DIA | 2497 LBS 1133 KG |
| Alloy 188 | 2.510 DIA X 160" RL 63.754MM DIA | 4301 LBS 1951 KG |
| Alloy 188 | 2.510 DIA X 2@142 + 3.5" 63.754MM DIA | 438 LBS 199 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 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 | 2.760 DIA X 155"RL 70.104MM DIA | 3892 LBS 1765 KG |
| Alloy 188 | 2.760 DIA X 72.875 70.104MM DIA | 143 LBS 65 KG |
| Alloy 188 | 3.020 DIA X 1" 76.708MM DIA | 3 LBS 1 KG |
| Alloy 188 | 3.020 DIA X 128-142" RL 76.708MM DIA | 2343 LBS 1063 KG |
| Alloy 188 | 3.020 DIA X 89-148" RL 76.708MM DIA | 2228 LBS 1011 KG |
| Alloy 188 | 3.520 DIA X 115" RL 89.408MM DIA | 1985 LBS 900 KG |
| Alloy 188 | 3.520 DIA X 120-150" RL 89.408MM DIA | 2261 LBS 1026 KG |
| Alloy 188 - DUE DATE: 12-02-23 | 4.020 DIA X 160" RL 102.108MM DIA | 10000 LBS 4536 KG |
| Alloy 188 | 4.020 DIA X 174.5 + 58.875 102.108MM DIA | 977 LBS 443 KG |
| Alloy 188 | 4.645 DIA X 1" 117.983MM DIA | 6 LBS 3 KG |
| Alloy 188 | 4.645 DIA X 1.125" 117.983MM DIA | 6 LBS 3 KG |
| Alloy 188 - DUE DATE: 02-01-23 | 4.645 DIA X 160" RL 117.983MM DIA | 4500 LBS 2041 KG |
| Alloy 188 - DUE DATE: 02-06-23 | 4.645 DIA X 161" RL 117.983MM DIA | 7000 LBS 3175 KG |
| Alloy 188 - DUE DATE: 11-01-23 | 6.625 DIA X 180" RL 168.275MM DIA | 4000 LBS 1814 KG |
| Alloy 188 | 6.625 DIA X 191.250 168.275MM DIA | 4396 LBS 1994 KG |
| Alloy 188 | 6.645 DIA X 187 168.783MM DIA | 2130 LBS 966 KG |
| ALLOY | SIZE | WEIGHT |
|---|---|---|
| CURRENT SHEET INVENTORY | ||
| Alloy 188 | 0.008 X 7.875 X 9999.000 0.2032MM X 200.025 X 253974.6 | 146 LBS 66 KG |
| Alloy 188 | 0.008 X 8.000 X 9999.000 0.2032MM X 203.2 X 253974.6 | 709 LBS 322 KG |
| Alloy 188 - DUE DATE: 01-01-23 | 0.008 X 8.000 X 9999.000 0.2032MM X 203.2 X 253974.6 | 1100 LBS 499 KG |
| Alloy 188 - DUE DATE: 02-15-24 | 0.010 X 8.000 X 9999.000 0.254MM X 203.2 X 253974.6 | 1000 LBS 454 KG |
| Alloy 188 | 0.012 X 7.875 X 9999.000 0.3048MM X 200.025 X 253974.6 | 269 LBS 122 KG |
| Alloy 188 | 0.012 X 8.000 X 9999.000 0.3048MM X 203.2 X 253974.6 | 1785 LBS 810 KG |
| Alloy 188 | 0.016 X 36.000 X 120.000 0.4064MM X 914.4 X 3048 | 1174 LBS 533 KG |
| Alloy 188 - DUE DATE: 02-15-23 | 0.016 X 36.000 X 120.000 0.4064MM X 914.4 X 3048 | 6000 LBS 2722 KG |
| Alloy 188 | 0.020 X 36.000 X 120.000 0.508MM X 914.4 X 3048 | 2876 LBS 1305 KG |
| Alloy 188 - DUE DATE: 09-16-23 | 0.020 X 36.000 X 120.000 0.508MM X 914.4 X 3048 | 3500 LBS 1588 KG |
| Alloy 188 | 0.025 X 36.000 X 120.000 0.635MM X 914.4 X 3048 | 7560 LBS 3429 KG |
| Alloy 188 | 0.032 X 36.000 X 120.000 0.8128MM X 914.4 X 3048 | 6140 LBS 2785 KG |
| Alloy 188 | 0.040 X 36.000 X 107.880 1.016MM X 914.4 X 2740.152 | 429 LBS 195 KG |
| Alloy 188 | 0.040 X 36.000 X 120.000 1.016MM X 914.4 X 3048 | 6757 LBS 3065 KG |
| Alloy 188 - DUE DATE: 08-02-23 | 0.050 X 36.000 X 120.000 1.27MM X 914.4 X 3048 | 5500 LBS 2495 KG |
| Alloy 188 - DUE DATE: 06-02-23 | 0.050 X 36.002 X 120.000 1.27MM X 914.4508 X 3048 | 4000 LBS 1814 KG |
| Alloy 188 | 0.055 X 48.000 X 7.500 1.397MM X 1219.2 X 190.5 | 7 LBS 3 KG |
| Alloy 188 | 0.057 X 36.000 X 120.000 1.4478MM X 914.4 X 3048 | 1706 LBS 774 KG |
| Alloy 188 - DUE DATE: 04-02-23 | 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 120.000 1.6002MM X 914.4 X 3048 | 5099 LBS 2313 KG |
| Alloy 188 - DUE DATE: 02-26-23 | 0.063 X 36.000 X 120.010 1.6002MM X 914.4 X 3048.254 | 4000 LBS 1814 KG |
| Alloy 188 | 0.071 X 36.000 X 120.000 1.8034MM X 914.4 X 3048 | 3409 LBS 1546 KG |
| Alloy 188 | 0.080 X 36.000 X 120.000 2.032MM X 914.4 X 3048 | 10177 LBS 4616 KG |
| Alloy 188 | 0.093 X 36.000 X 13.625 2.3622MM X 914.4 X 346.075 | 16 LBS 7 KG |
| Alloy 188 | 0.093 X 36.000 X 120.000 2.3622MM X 914.4 X 3048 | 2391 LBS 1085 KG |
| Alloy 188 - DUE DATE: 05-16-23 | 0.093 X 36.000 X 120.000 2.3622MM X 914.4 X 3048 | 5500 LBS 2495 KG |
| Alloy 188 | 0.100 X 36.000 X 120.000 2.54MM X 914.4 X 3048 | 3555 LBS 1613 KG |
| Alloy 188 | 0.125 X 36.000 X 120.000 3.175MM X 914.4 X 3048 | 12721 LBS 5770 KG |
| Alloy 188 | 0.159 X 36.000 X 120.000 4.0386MM X 914.4 X 3048 | 742 LBS 337 KG |
| Alloy 188 - DUE DATE: 12-26-22 | 0.159 X 36.000 X 120.000 4.0386MM X 914.4 X 3048 | 4000 LBS 1814 KG |