Ferro Chrome is extensively used in the
manufacture of superior alloys and stainless steel. In fact,
it is the addition of chromium which gives essential characteristics
to steel such as resistance to heat and corrosion. It is a
strong carbide forming element and as such it is an important
alloying element in tool and die steels including high speed
steel.
Ferro Chrome is produced by reducing Chrome Ore lumps and
agglomerated fines known as briquettes in a submerged electric
arc furnace by using carbonaceous reductants such as coke.
The burden also comprises of fluxing material such as bauxite
and quartz.
The molten Ferro Chrome along with slag is tapped at certain
regular intervals from the furnace hearth and is then cast
into a casting bay. After it has cooled down the cakes are
crushed, sized, screened and then stored in specific lots
ready for despatch.
Customers in the domestic and international markets include
most of the well known names.
The
normal specifications are:
Chromium (Cr)
57 - 63%
Silicon (Si)
4% max.
Carbon (C)
8% max.
Phosphorous (P)
0.03% max. 0.05% max.
Sulphur (S)
0.04% max. 0.05% max.
Size
10-100 mm 10-150 mm
90% min. 90% min.
(Bulk orders with other specifications
as per customer's requirements can also be considered)
