Density Of Steel

I wish to know what is mean by "steel" regarding density of material. There are several type of steel, eg. carbon steel, stainless steel, galvanised steel, black steel etc... . so please any body can give me the exact density of steel used in engineering calculations. and also please confirm this value is same for all type of steel. Also please mention about Iron eg. ductile Iron, cast Iron, wrought Iron etc..

In Mcgraw hill's Mechanical Engineers Handbook the densities given is different for all type of steel and Iron. But In some table like, ANSI b36.10-1959, the table is given for steel pipe. Can anybody tell me what is meant by standard steel and density used in this table, as I found density is different for different pipe size. please clarify.

There isn't one value for density that is the same for all types of steel. Different steels are different alloys, although I wouldn't have thought the values would vary greatly since all are largely steel.

The values you look up will probably vary slightly from source to source, and also will vary with temperature. A few densities I've looked up in the first book that came to hand ("An Engineering Data Book", edited by Calvert, J. R., and Farrar, R. A., Palgrave 1999) are:

Mild steel = 7860 kg/m3
0.4%C steel = 7860 kg/m3
Stainless steel (304) = 7930 kg/m3

These are all at 20 degC. FOr the benefit of 'accurate' calculations, you need to find out exactly what the material is (i.e. 304 st. st., mild steel pipe etc.), then dig around a bit to find a value at the appropriate temperature.

Different countries may operate to different materials standards; try finding out which standards apply to the material you're looking at, then go and look in that standard to find the density it should conform to.