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1955年1—5月份优质钢锭、锻钢材、轧钢材的全局平均合格率均较1954年有所提高。但是,在钢锭方面,大冶纲厂的质量很差,合格率仅达90.76%,与1954年相比较反而下降1.84%,自1955年4月以来钢锭质量已略有好转,但与计划数字相差甚远;其次,大连、太原两厂的合格率也比1954年的略有下降。按钢类的质量特别严重的是合金结构钢和高速钢,合金结构钢全局特殊钢厂平均合格率祇有89.18%,而大连钢厂仅为78.5%;高速钢全局平均合格率是89.8%,
From January to May 1955, the overall average passing rate of high-quality ingot, forged steel and rolled steel was all higher than that of 1954. However, in terms of steel ingots, the quality of the Daye Gang plant is very poor with a passing rate of only 90.76%, but a decrease of 1.84% as compared with 1954. The ingot quality has slightly improved since April 1955, but differs from the planned figure Far; secondly, the passing rate of Dalian, Taiyuan two plants also dropped slightly compared with 1954. According to the quality of steel, alloy structural steels and high-speed steels are the most serious ones. The average passing rate of alloy steels is 89.18%, while that of Dalian steel mills is only 78.5%. The global pass rate of high-speed steels is 89.8%