Incoloy 800

Aurico Alloys LLP supplies Incoloy 800 as sheet, plate and round bar, from Mumbai, India, with EN 10204 3.1 mill test certificates.

Incoloy® 800 (UNS N08800, W.Nr. 1.4876) is an iron–nickel–chromium alloy — nickel 30-35%, chromium 19-23% and iron 39.5% minimum — that resists oxidation and carburisation at temperature without the cost of a fully nickel-based grade. Aluminium and titanium at 0.15-0.60% each stabilise the structure. It is the general-purpose member of the family; where creep strength above about 600 °C is the requirement, 800H and 800HT are the grades to quote.

Key Properties

Iron–nickel–chromium. Nickel 30-35%, chromium 19-23%, iron 39.5% minimum — the iron content is what makes it economical against a nickel-based alloy.
Carbon to 0.10% maximum, with no minimum. That is precisely what separates it from 800H, which specifies a range.
Aluminium and titanium 0.15-0.60% each, stabilising the structure against sensitisation.
ASTM B409 / B906 for plate, sheet and strip; B408 for bar; B163 / B407 / B829 for tube.

Applications

Electric heater sheathing and elements
Process piping and heat exchangers at temperature
Carburising furnace fixtures and retorts
Nuclear steam generator components

Available Forms

Equivalent Grades & Standards

Equivalent designations and physical constants for Incoloy 800
Property	Value
UNS number	N08800
Werkstoff / EN number	1.4876
EN designation	X10NiCrAlTi32-21
Density	7.94 g/cm³
Melting range	1357-1385 °C
Specific heat (0-100 °C)	460 J/kg·°C
Magnetic permeability (200 oersted at 21 °C - annealed)	1.014
Magnetic permeability (200 oersted at 21 °C - hot-rolled)	1.009
Curie temperature	-115 °C

Identifiers and physical constants for Incoloy 800. A dash means no such designation is published for this grade.

Specifications by Product Form

Incoloy 800 (N08800) is supplied to a different standard in each form. Quote the one that matches the product you are ordering.

Product form	Specification
Plate, sheet and strip	ASTM B409 / B906 / AMS 5871
Rod and bar	ASTM B408
Wire	ISO 9724 / BS 3075NA15
Pipe and tube	ASTM B163 / B407 / B829
Fittings	ASTM B366