High purity pig iron is a high-end casting specific iron with low content of harmful elements such as phosphorus, sulfur, manganese, titanium, and very few specific trace elements.
Mainly used for: wind power castings, nuclear power castings, large section ductile iron castings, ductile iron castings with low-temperature impact toughness and fatigue performance requirements, etc. With the transformation of China from a major casting country to a strong casting country, high-purity pig iron has become an urgent demand for many high-end casting enterprises in China, which is of great significance for the development of domestic industries such as wind power, nuclear power, shipbuilding, and high-speed rail.

Product Series	Mark	Composition standards（%）
		Si	Ti	Mn	P	S	C
Casting grade	特C1	≤0.30	≤0.020	≤0.080	≤0.020	≤0.015	≥3.0
	特C2	≤0.30	≤0.026	≤0.100	≤0.026	≤0.015	≥3.0
	特C3	0.30-0.4	≤0.030	≤0.100	≤0.028	≤0.015	≥3.0
	特C4	0.41-0.50	≤0.030	≤0.100	≤0.030	≤0.015	≥3.0
	特C5	0.51-0.60	≤0.035	≥0.070	≤0.030	≤0.015	≥3.0
	特C6	0.61-0.70	≤0.035	≥0.070	≤0.035	≤0.015	≥3.0
	特C7	0.71-0.80	≤0.040	≥0.070	≤0.035	≤0.015	≥3.0
	特C8	0.81-0.90	≤0.040	≥0.070	≤0.035	≤0.015	≥3.0
	特C9	0.91-1.00	≤0.040	≥0.070	≤0.035	≤0.015	≥3.0
Casting first grade products	一级C1	≤0.30	≤0.028	≤0.080	≤0.028	0.015-0.020	≥0.30
	一级C2	0.31-0.40	≤0.028	≤0.080	≤0.028	0.015-0.020	≥0.30
	一级C3	0.41-0.50	≤0.028	≤0.080	≤0.030	0.015-0.020	≥0.30
	一级C4	0.51-0.60	≤0.035	≤0.080	≤0.035	0.015-0.020	≥0.30
	一级C5	0.61-0.70	≤0.040	≤0.080	≤0.035	0.015-0.020	≥0.30
	一级C6	0.71-0.80	≤0.040	≤0.100	≤0.035	0.015-0.020	≥0.30
	一级C7	0.81-0.90	≤0.040	≤0.100	≤0.035	0.015-0.020	≥0.30
	一级C8	0.91-1.00	≤0.040	≤0.100	≤0.035	0.015-0.020	≥0.30
	一级C9	1.01-1.10	≤0.045	≤0.100	≤0.040	0.015-0.020	≥0.30