Sponge Iron

Product Description :

Sponge Iron is a metallic product formed by the reduction of iron ore at temperature just below the fusion point of iron. This product has derived the name "Sponge Iron" due to its porous nature. It is also called as Direct Reduced Iron (DRI).

Properties
Sponge Iron is a substitute of steel scrap for steel making through the secondary route i.e. DR/EF route. This also replaces ferrous scrap as a coolant in LD converter. The value of DRI is measured by comparing its cost and properties with those of scrap. It's non pyrophoric. It's free from tramp elements viz Copper, Zinc, Tin, Chromium, Tungsten and Molybdenum etc that are usually present in scrap. It has low Sulphur content. It has the ability to use low grade fuels and fuels that are unacceptable for conventional iron making. It is more suited for some special metallurgical processes than conventional iron & steel products e.g. Precipitation of copper from leaching solution during copper extraction. Production of metal objects by powder compaction.

Specifications
 

PARTICULARS	SPONGE IRON LUMPS	SPONGE IRON FINES
TOTAL IRON	91.5% Min	92% Min
METALLIC IRON	80% Min	82% Min
DEGREE OF METALLIZATION	88% Min	90% Min
CARBON	0.2% Min	<0.25% Min
SULPHUR	LESS THAN 0.04% Min	LESS THAN 0.04% Min
PHOSPHOROUS	LESS THAN 0.45%	LESS THAN 0.45%
GANGUE	LESS THAN 5%	LESS THAN 5%
NON MAGNETIC	LESS THAN 0.5%	LESS THAN 1.5%
SIZE	3 to 20 mm	0 to 5 mm