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乌克兰金属科学研究所研究出了以铸造方法直接从钢水中取得钢砂。铸造钢砂的技术规格如下:(1)化学成分:C=0.60—0.75%;Si=0.17—0.37%;Mn=0.50—0.80%;S≤0.06%和P=0.08%;(2)钢砂的形状为球形,形状不规则的钢砂数量不超过7%;(3)钢砂制造的规格为:2.5;3.0;3.5和4.0
Ukraine Institute of Metal Research has developed a casting method to obtain grit directly from the molten steel. Casting grit specifications are as follows: (1) chemical composition: C = 0.60-0.75%; Si = 0.17-0.37%; Mn = 0.50-0.80%; S ≤ 0.06% and P = 0.08%; Of the shape of the ball, the irregular shape of the number of grit does not exceed 7%; (3) grit specifications: 2.5; 3.0; 3.5 and 4.0