ALLOY 800800AT800H steel bar

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11-May-2024

Name:ALLOY 800/800AT/800H
Round bar steel: 1mm to 2000mm Square-shape steel: 50mm to 600mm Plate steel:0.5mm to 1000mm Width: 10-1500mm

Alloy 800 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 doesn't 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.

Type Analysis

Incoloy	Incoloy 800		Incoloy 800H
Element	Min	Max	Min	Max
Nickel + Cobalt	30.0	35.0	30.0	35.0
Cobalt	---	2.00	---	2.00
Chromium	19.0	23.0	19.0	23.0
Copper	---	0.75	---	0.75
Iron	Bal		Bal
Silicon	---	1.00	---	1.00
Manganese	---	1.50	---	1.50
Carbon	---	0.10	0.05	0.10
Aluminum	0.15	0.60	0.15	0.60
Titanium	0.15	0.60	0.15	0.60
Sulfur	---	0.015	---	0.015

ALLOY 800/800AT/800H Applications
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.