Incoloy Alloy 800

Product Detail

Incoloy 800/800H/800HT(UNS N08800/ UNS N08810/ UNS N08811)
Chemical Composition Wt.%		%	Ni	Cr	Fe		C	Mn	Si	Cu	S		Al	Ti
	800	Min	30	19									0.15	0.15
		Max	35	23	bal		0.10	1.5	1	0.75	0.015		0.60	0.60
	800H	Min	30	19			0.05						0.15	0.15
		Max	35	23	bal		0.1	1.5	1	0.75	0.015		0.6	0.60
	800HT	Min	30	19			0.06						0.15	0.15
		Max	35	23	bal		0.10	1.5	1	0.75	0.015		0.60	0.60
		aluminum +titanium for 0.85—1.20
Physical Constants	Density.g/cm³		8.0 g/cm³
	Melting Range		1350-1400 ?
The minimum mechanical properties of the alloy at room temperature	alloy		Typical mechanical properties			tensile strength Rm N/mm2			Yield Strength RP0.2N/mm2			Elongation A5 %
	800					500			210			35
	800H					450			180			35
Characters	1. Excellent corrosion resistance in very hot aqueous media up to 500? 2. Good resistance to stress corrosion properties 3. very good processability
Microstr ycture	800H for the face-centered cubic lattice structure. The extremely low carbon content and increased Ti: C ratio increase structural stability and maximum sensitization as well as intergranular corrosion resistance. Low temperature annealing around 950 ? to ensure fine grain structure.
Applications	1. Nitric acid condenser - -resistant to nitric acid corrosion 2. Steam heating tube - -good mechanical properties 3. Heating element tube - -very good mechanical properties For applications up to 500 ?, the alloy is annealed.