Alloy 800/H/HT Description Alloy 800/800H/800HT is an iron-nickel-chromium alloy with moderate strength and good resistance to oxidation and carburization at elevated temperatures. It is particularly useful for high-temperature equipment in the petrochemical industry because the alloy does not form the embrittling sigma phase after long time exposure at 1200°F (649°C). Excellent resistance to chloride stress-corrosion cracking is another important feature of alloy 800. Alloy 800H is a solution heat treated (2100°F/1150°C), controlled-carbon version of alloy 800 with improved elevated temperature properties. It has improved creep and stress-rupture characteristics in the 1100°F (593°C) to 1800°F (982°C) temperature range. Typical applications for alloy 800 and 800H are - Heat exchangers and process piping; carburizing fixtures and retorts; furnace components; electric range heating-element sheathing; extruded tubing for ethylene and steam methane reforming furnaces; ammonia effluent coolers. TYPICAL SPECIFICATION PACKAGES UNS-N-08800/8810/8811 WERKSTOFF1.4959/8 PLATE:AMS 5871, ASTM-B-409, ASME-SB-409 SHEET:AMS 5871, ASTM-B-409, ASME-SB-409 ALLOY SIZE WEIGHT CURRENT PLATE INVENTORY Alloy 800/H/HT - DUE DATE: 12-31-21 0.187 X 48.000 X 120.000 4.7498MM X 1219.2 X 3048 8500 LBS 3856 KG Alloy 800/H/HT - DUE DATE: 07-16-22 0.250 X 48.000 X 200.000 6.35MM X 1219.2 X 5080 7720 LBS 3502 KG Alloy 800/H/HT 0.250 X 48.250 X 19.500 6.35MM X 1225.55 X 495.3 26 LBS 12 KG Alloy 800/H/HT 0.250 X 72.000 X 8.625 6.35MM X 1828.8 X 219.075 52 LBS 24 KG Alloy 800/H/HT 0.312 X 48.000 X 79.500 7.9248MM X 1219.2 X 2019.3 542 LBS 246 KG Alloy 800/H/HT 0.315 X 31.500 X 42.750 8.001MM X 800.1 X 1085.85 128 LBS 58 KG Alloy 800/H/HT 0.315 X 85.000 X 75.750 8.001MM X 2159 X 1924.05 1268 LBS 575 KG Alloy 800/H/HT 0.375 X 25.000 X 32.000 9.525MM X 635 X 812.8 123 LBS 56 KG Alloy 800/H/HT 0.375 X 25.875 X 29.750 9.525MM X 657.225 X 755.65 89 LBS 40 KG Alloy 800/H/HT 0.375 X 48.000 X 5.120 9.525MM X 1219.2 X 130.048 39 LBS 18 KG Alloy 800/H/HT 0.375 X 48.000 X 120.875 9.525MM X 1219.2 X 3070.225 649 LBS 294 KG Alloy 800/H/HT - DUE DATE: 07-16-22 0.375 X 48.000 X 200.000 9.525MM X 1219.2 X 5080 4620 LBS 2096 KG Alloy 800/H/HT 0.500 X 4.375 X 59.000 12.7MM X 111.125 X 1498.6 75 LBS 34 KG Alloy 800/H/HT 0.500 X 12.250 X 9.250 12.7MM X 311.15 X 234.95 31 LBS 14 KG Alloy 800/H/HT 0.500 X 36.250 X 80.000 12.7MM X 920.75 X 2032 566 LBS 257 KG Alloy 800/H/HT 0.500 X 48.000 X 24.875 12.7MM X 1219.2 X 631.825 187 LBS 85 KG Alloy 800/H/HT 0.500 X 48.000 X 200.000 12.7MM X 1219.2 X 5080 3025 LBS 1372 KG Alloy 800/H/HT 0.625 X 48.000 X 140.750 15.875MM X 1219.2 X 3575.05 1301 LBS 590 KG Alloy 800/H/HT 0.750 X 21.000 X 72.125 19.05MM X 533.4 X 1831.975 1095 LBS 497 KG Alloy 800/H/HT 0.750 X 21.750 X 7.125 19.05MM X 552.45 X 180.975 82 LBS 37 KG Alloy 800/H/HT 0.750 X 40.000 X 19.800 19.05MM X 1016 X 502.92 276 LBS 125 KG Alloy 800/H/HT 0.750 X 48.000 X 200.000 19.05MM X 1219.2 X 5080 2181 LBS 989 KG Alloy 800/H/HT 1.000 X 23.750 X 50.000 25.4MM X 603.25 X 1270 426 LBS 193 KG Alloy 800/H/HT 1.000 X 26.750 X 25.750 25.4MM X 679.45 X 654.05 204 LBS 93 KG Alloy 800/H/HT - DUE DATE: 07-23-22 1.000 X 48.000 X 200.000 25.4MM X 1219.2 X 5080 2899 LBS 1315 KG Alloy 800/H/HT 1.250 X 4.000 X 128.000 31.75MM X 101.6 X 3251.2 318 LBS 144 KG Alloy 800/H/HT 1.250 X 48.125 X 137.000 31.75MM X 1222.375 X 3479.8 2622 LBS 1189 KG Alloy 800/H/HT 1.500 X 12.000 X 57.250 38.1MM X 304.8 X 1454.15 595 LBS 270 KG Alloy 800/H/HT 1.500 X 48.000 X 167.870 38.1MM X 1219.2 X 4263.898 3552 LBS 1611 KG Alloy 800/H/HT 1.578 X 48.125 X 50.625 40.0812MM X 1222.375 X 1285.875 1120 LBS 508 KG Alloy 800/H/HT 1.750 X 12.000 X 42.000 44.45MM X 304.8 X 1066.8 159 LBS 72 KG Alloy 800/H/HT 1.750 X 24.500 X 14.120 44.45MM X 622.3 X 358.648 339 LBS 154 KG Alloy 800/H/HT 1.750 X 60.000 X 100.875 44.45MM X 1524 X 2562.225 3682 LBS 1670 KG Alloy 800/H/HT 2.000 X 10.375 X 10.375 50.8MM X 263.525 X 263.525 221 LBS 100 KG Alloy 800/H/HT - DUE DATE: 07-23-22 2.000 X 48.000 X 144.000 50.8MM X 1219.2 X 3657.6 4073 LBS 1847 KG CURRENT SHEET INVENTORY Alloy 800/H/HT 0.020 X 48.000 X 120.000 0.508MM X 1219.2 X 3048 5330 LBS 2418 KG Alloy 800/H/HT - DUE DATE: 12-01-21 0.020 X 48.000 X 120.000 0.508MM X 1219.2 X 3048 8500 LBS 3856 KG Alloy 800/H/HT 0.032 X 48.000 X 120.000 0.8128MM X 1219.2 X 3048 2973 LBS 1349 KG Alloy 800/H/HT - DUE DATE: 03-06-22 0.032 X 48.000 X 120.000 0.8128MM X 1219.2 X 3048 8500 LBS 3856 KG Alloy 800/H/HT 0.040 X 48.000 X 120.000 1.016MM X 1219.2 X 3048 9208 LBS 4177 KG Alloy 800/H/HT - DUE DATE: 11-20-21 0.040 X 48.000 X 120.000 1.016MM X 1219.2 X 3048 8500 LBS 3856 KG Alloy 800/H/HT 0.050 X 48.000 X 120.000 1.27MM X 1219.2 X 3048 7498 LBS 3401 KG Alloy 800/H/HT - DUE DATE: 12-30-21 0.063 X 48.000 X 120.000 1.6002MM X 1219.2 X 3048 8500 LBS 3856 KG Alloy 800/H/HT - DUE DATE: 03-06-22 0.063 X 48.010 X 120.010 1.6002MM X 1219.454 X 3048.254 17000 LBS 7711 KG Alloy 800/H/HT 0.080 X 48.000 X 120.000 2.032MM X 1219.2 X 3048 7210 LBS 3270 KG Alloy 800/H/HT 0.093 X 48.000 X 120.000 2.3622MM X 1219.2 X 3048 3398 LBS 1541 KG Alloy 800/H/HT 0.109 X 11.000 X 6.625 2.7686MM X 279.4 X 168.275 2 LBS 1 KG Alloy 800/H/HT - DUE DATE: 03-06-22 0.109 X 48.000 X 120.000 2.7686MM X 1219.2 X 3048 8500 LBS 3856 KG Alloy 800/H/HT 0.125 X 48.000 X 120.000 3.175MM X 1219.2 X 3048 5722 LBS 2595 KG Alloy 800/H/HT - DUE DATE: 11-16-21 0.125 X 48.000 X 120.000 3.175MM X 1219.2 X 3048 25500 LBS 11567 KG Alloy 800/H/HT 0.159 X 48.000 X 120.000 4.0386MM X 1219.2 X 3048 8635 LBS 3917 KG Alloy 800/H/HT 0.160 X 48.000 X 120.000 4.064MM X 1219.2 X 3048 748 LBS 339 KG