DENSITY OF IRON AND IRON ALLOYS

The density of iron is 7.874 g/cm³ (491.5 lb/ft³, 0.284 lb/in³). Following chart shows density values of iron and iron alloys at room temperature.

Density of Iron and Iron Alloys

Material	Density
Material	g/cm³	lb_m / in³
Pure iron	7.874	0.2845
Ingot iron	7.866	0.2842
Wrought iron	7.7	0.2
Gray cast iron	7.15 ^Note-1	0.258 ^Note-1
Malleable iron	7.27 ^Note-2	0.262 ^Note-2
Ductile iron	7.15	0.258
High-nickel iron (Ni-Resist)	7.5	0.271
High-chromium white iron	7.4	0.267

Note-1: 6.95 to 7.35 g/cm3 (0.251 to 0.265 lb/in.3).

Note-2: 7.20 to 7.34 g/cm3 (0.260 to 0.265 lb/in.3).

Physical Properties of Iron:

Iron is a ductile and malleable material. It is a silvery white and grayish metal. It has a melting temperature of 1538 °C. Iron is one of the three naturally occurring magnetic elements. The other two elements are nickel and cobalt.

The chemical symbol of iron is Fe. Iron is a very active metal and combines with oxygen in wet air. The product of reaction results iron oxide (Fe₂O₃) which is known as rust. Rusting of iron is a chemical change.

Reference:

Davis, J.R. Metals Handbook Desk Edition. ASM, 1998.