正文 第79章 什么神仙单位(第2页/共3页)
”
其他同志全部来了精神，放下手中的事情，七嘴八舌的问他。
“伱发现什么了？”
“多硬？”
“我看看我看看。”
这名同志拿着材料，念了一遍：“布氏硬度，hb 103000，大于等于370，小于480。”
这一下现场全炸了，布氏硬度在370480之间是什么概念？举个例子，5dl坦克的仿制对象，北方原版的t-5455用的74n、75n高镍装甲钢，布氏硬度大概在300左右，国内1960年代搞出来替代的601无镍装甲钢，布氏硬度大概是290。
“多少？多少？”
“给我给我，我看看我看看。”
“不可能吧？是不是报错了？”
“看看别的力学性能，看看别的力学性能。”
“看什么力学性能！都叫钢了，其他力学性能不会太差。看材料配比！看材料配比！”
现场一下子一团乱麻，不过大都是兴奋的。
这个时候，草原拖拉机厂来此的技术领头人，关总，把手一伸：“给我，我看！！！”
拿到材料，他迫不及待的仔细看了起来。
“3z-t1合金钢，硬度写的确是这么高，力学性能完全符合我们的要求，甚至还超出了。”
“轧制材料，可用于各种厚度的钢板。炮塔用不上了，但是车体那一半就可以解决了，太好了！！”
5dl的炮塔，是铸造炮塔，铸造钢和焊接钢的要求不太一样。
“材料配比，嗯，没写具体的配比，只写了成份，铁、碳、硅、锰、磷、硫、硼、钛没了？这就没了？没有镍，没有铬，没有钼？？！！！”
这几样东西，无一不是受到国外严格管制，同时现阶段国内又产量不高的。
听到这里，大家反而不敢相信了：“什么？镍、铬、钼都不需要？这别是”
后面的话，没说出来，但是含义不言而喻。
关总看了看材料的报送单位，京城第三轧钢厂，这倒是让他有了几分信心，四九城里面的大厂，出幺蛾子可能性比较小，看了看，材料还没完，然后往后翻了一下。
这一翻，眼睛就又直了。
“什么？还有一种？3z-t2铸造钢？”
大家一听，麻了，这是什么神仙单位，轧板的有了，还有铸造的？
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