?????????(GB/T8162-1999)
?????????????GB8162-1999?????????????????????GB8162-1999????????仯???£?
??????????????????????
??????????2008-08-19???? 2009-04-01??
?????????????????:[(??-???)*???]*0.02466=kg/??(????????)
?????????????????
??????????????????????????
??????????????????б???
????????????????????
???????????????????
????????????????????????
?????????????????????Э?????
???????????????????????汾??????????
????????GB8162-1987??GB8162-1999
??????????2008-08-19???? 2009-04-01??
?????????????????:[(??-???)*???]*0.02466=kg/??(????????)
?????????(GB/T8162-1999)
???????????:
?????????????????20G 16Mn
??б????GB5310-95 GB6479-86 GB9948-88
????
25??2.5-5 |
57??3-8 |
114??5-20 |
168??8-30 |
325??8-45 |
28??3-5 |
60??4-10 |
121??5-20 |
180??7-30 |
351??10-36 |
32??3-5 |
63.5??4-12 |
127??6-20 |
194??8-30 |
377??10-38 |
38??3-6 |
76??4-14 |
133??5-22 |
203??10-32 |
402??10-45 |
42??3-6 |
83??5-14 |
140??6-22 |
219??7-45 |
426??10-30 |
45??3-6 |
89??4.5-20 |
146??8-25 |
245??8-45 |
480??12-30 |
48??3-6 |
102??4-20 |
152??8-25 |
273??8-50 |
530??12-30 |
?е????ˉ??????????????
????????????????? 20# dz40
??б???? GB3087-1999 GB8163-1999 YB23-70