Pakistan Steel produces, two grades of Pig Iron - Foundry Grade Pig Iron (F.P.I) and Conversion Grade Pig Iron (C.P.I). Normal practice at Pakistan Steel is to produce Conversion Grade Pig Iron (CPI).
Pig Weight: | 45kg (Max) |
Width of Pig: | 115 to 200mm |
Thickness of Pig: | 60 to 100 mm |
No. of Notches: | 2 |
Packing: | Loose |
Type | Carbon % | Silicon % | Manganese % | Sulphur % (max) | Phosphorous % (max) | ||||||
FPI--1 | 3.5 to 4.5 | 3.26 to 3.75 | 0.5 to 1.2 | 0.06 | 0.30 | ||||||
FPI--2 | 3.5 to 4.5 | 2.76 to 3.25 | 0.5 to 1.2 | 0.06 | 0.30 | ||||||
FPI--3 | 3.5 to 4.5 | 2.26 to 2.75 | 0.5 to 1.2 | 0.06 | 0.30 | ||||||
FPI--4 | 3.5 to 4.5 | 1.76 to 2.25 | 0.5 to 1.2 | 0.06 | 0.30 | ||||||
FPI--5 | 3.5 to 4.5 | 1.26 to 1.75 | 0.5 to 1.2 | 0.06 | 0.30 | ||||||
FPI--6 | 3.5 to 4.5 | 1.0 to 1.25 | 0.5 to 1.2 | 0.06 | 0.30 | ||||||
CPI--1--A | 3.5 min | 1.25 max | 0.4 min | 0.05 | 0.30 | ||||||
CPI--1--B | 3.5 min | 1.25 max | 0.4 min | 0.05 - 0.07 | 0.30 |
Sulphur more than 0.06% in FPI would be called FP I- Special and CPI with sulphur more than 0.07% would be called CPI - Special.