苏联现在采用的可锻铸铁管件使用范围更广泛了。苏联已制定新的固定标准,其中规定可锻铸铁用于公称压力40公斤/厘米~2时,阀件的公称直径在100毫米以下的,温度可至300℃;公称直径在50毫米以下的,温度可至400℃。根据这一新规定,用得最多的50毫米以下的钢阀,完全可以用可锻铸铁代替,这样可以节省相当数量的钢 The malleable cast iron pipe now used by the Soviet Union has a wider range of uses. The Soviet Union has developed a new fixed standard, which provides for the use of malleable iron for nominal pressure 40 kg / cm ~ 2, the valve nominal diameter of 100 mm or less, the temperature can be 300 ℃; nominal diameter of 50 mm or less, the temperature can be To 400 ° C. According to this new regulation, the most widely used steel valve of 50 mm or less can be replaced by malleable iron, thus saving a considerable amount of steel