高纯生铁是一种磷、硫、锰、钛等有害元素含量低，特定微量元素含量很少的高端铸件专用铁。
主要用于：风电铸件、核电铸件、大断面球铁铸件，有低温冲击韧度和疲劳性能要求的球铁铸件等。随着我国由铸件大国向铸造强国转型，高纯生铁成为我国很多高端铸造企业的迫切需求，对国内的风电、核电、船舶、高铁等行业的发展有着重大意义。

产品系列	牌号	成分标准（%）
		Si	Ti	Mn	P	S	C
铸造特级	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
铸造 一级品	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