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20的冷拉圓鋼公差是多少

發(fā)布時(shí)間：2018-09-01 17:01??禁止復(fù)制或轉(zhuǎn)載本站任何內(nèi)容，特此聲明！??點(diǎn)擊：

冷拉圓鋼的公差，按照GB/T 905-94 《冷拉圓鋼、方鋼、六角鋼尺寸、外形、重量及允許偏差》規(guī)定，直徑20的冷拉圓鋼公差等級(jí)有φ20h8、φ20h9、φ20h10、φ20h11、φ20h12、φ20h13六種，確定所要求的公差等級(jí)就可以查出相應(yīng)的公差值了。
如：冷拉圓鋼φ20h8的公差為φ20h8(0/-0.033),上偏差為0，下偏差為-0.033.
最大極限尺寸為Φ20，最小極限尺寸為Φ19.967，公差帶為0.033.

上一篇：冷拉圓鋼與圓鋼的區(qū)別

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