INCOLOY 800HT (UNS N08810 / W. Nr. 1.4959)

We produce and export INCOLOY 800HT in various forms, sizes, dimension, and as per customer drawing or/ designs.

ALLOY 800HT (UNS N08810 / W. Nr. 1.4959)

Common Trade Names: INCOLOY® alloy 800HT

Alloy 800HT have significantly higher creep and rupture strength than Alloy 800. In addition to the controlled carbon content, Alloy 800HT receive a high-temperature annealing treatment that produces an average grain size of ASTM 5 or coarser. the Al plus Ti content of Alloy 800HT is restricted to 0.85 – 1.20%.The annealing treatment and restricted chemical composition are responsible for these alloys having greater creep and rupture strength. combined with their resistance to hightemperature corrosion, make these alloys exceptionally useful for many applications involving long-term exposure to elevated temperatures and corrosive atmospheres. In the hydrocarbon processing industry, these alloys are used in steam/hydrocarbon reforming for catalyst tubing, convection tubing, pigtails, outlet manifolds, and quenching-system piping; in ethylene production for both convection and cracking tubes, and pigtails; in oxy-alcohol production for tubing in hydrogenation heaters; in hydrodealkylation units for heater tubing; and in the production of vinyl chloride monomer for cracking tubes, return bends and inlet and outlet flanges.

Chemical composition (%):

C: 0.06-0.10 Mn: 1.50 max S: 0.015 max Si: 1.00 max Ni: 30.0-35.0 Cu: 0.75 max Fe: 38.0-47.0 P: 0.030 max Cr: 19.0-23.0 Ti: 0.15-0.60 Al+Ti: 0.85-1.20

Corrosion resistant:

- Excellent resistance to oxidation.

- Good resistance to sulfur-containing atmospheres at high temperatures.

- Good resistance to carburizing environments

- Good resistance to nitride atmospheres

Applications of ALLOY 800HT (UNS N08810 / W. Nr. 1.4959):

Hydrocarbon processing - catalyst tubing, convection tubing, pigtails, outlet manifolds, and quenching-system piping.

Ethylene, Oxy Alcohol, Vynil Chloride monomer production - heater tubing, convection and cracking tubes, and pigtails, tubing in hydrogenation heaters,

Heat treating furnaces - radiant tubes, muffles, retorts, and assorted furnace fixtures.

Nuclear Power - steam superheating tubing and hightemperature heat exchangers in gas-cooled nuclear reactors

Available Products and Specifications at CHAOWEI:

Pipe, Tube - ASTM B 163 & ASME SB 163 (Seamless Condenser & Heat Exchanger Tubes), ASTM B 407/B 829 & ASME SB 407/SB 829 (Seamless Pipe & Tubes), ASTM B 514/B 775 & ASME SB 514/SB 775 (Welded Pipe), ASTM B 515/B 751 & ASME SB 515/SB 751(Welded Tubes), ASME Code Case 1325 (All Product Forms) and 1983 Seamless Pipe & Tubes), BS 3074NA15 (Seamless Pipe & Tubes), SEW 470 (All Products), VdTÜV 412 & 434 (All Products), ISO 6207 (Seamless Tubes), DIN 17459 (Seamless Pipe & Tubing)

Bar, Rod, Wire, and Forgings - ASTM B 408 & ASME SB 408 (Rod & Bar), ASTM B 564 & ASME SB 564 (Forgings), ASME Code Case 1325 (All Product Forms), ASME Code Case 1949 (Forgings), ISO 9723 (Rod & Bar), ISO 9724 (Wire), ISO 9725 (Forgings), BS 3076NA15 (Rod & Bar), BS 3075NA15 (Wire), SEW 470 (All Products), VdTÜV 412 & 434 (All Products), DIN 17460 (Rod, Bar, & Forgings), EN 10095 (Rod & Bar)

Plate, Sheet, Strip - ASTM A 240/A 480 & ASME SA 240/SA 480 (Plate, Sheet, and Strip), ASTM B 409/B 906 & ASME SB 409/SB 906 (Plate, Sheet, and Strip), ASME Code Case 1325 (All Product Forms), ASME Code Case 2339 (INCOLOY alloy 800H Plate), BS 3072NA15 (Plate & Sheet), BS 3073NA15 (Strip), SEW 470 (All Products), VdTÜV 412 & 434 (All Products), DIN 17460 (Plate, Sheet, & Strip), EN 10028-7 & EN 10095 (Plate, Sheet, & Strip)

Other Products - ASTM B 366 & ASME SB 366 (Fittings), ASME Code Cases N-201 & N-254 (All Products for Nuclear Construction), ISO 4955A (General)

Welcome to contact us,

Zhejiang Chaowei New Material Co., Ltd.

(High Nickel Alloy and Super Alloy Materials)

INCOLOY 800HT (UNS N08810 / W. Nr. 1.4959)