?????????????:[(??-???)*???]*0.02466=kg/??(????????)
???
GB/T8621---------?й???????
???
??????????????е??????????
?????????????
10??20??35??45??16Mn??12CrMo??15CrMo??12Cr1MoV???
??е????
??? |
??? |
???????(MPa) |
???????(MPa) |
????(%) |
GB/T8162 |
10 |
?? 335 |
?? 205 |
?? 24 |
20 |
?? 390 |
?? 245 |
?? 20 |
35 |
?? 510 |
?? 305 |
?? 17 |
45 |
?? 590 |
?? 335 |
?? 14 |
16Mn |
?? 490 |
?? 325 |
?? 21 |
12CrMo |
?? 410 |
?? 265 |
?? 24 |
15CrMo |
?? 440 |
?? 295 |
?? 22 |
12Cr1MoV |
?? 490 |
?? 245 |
?? 22 |
??????
??? |
??? |
?????? |
C |
Si |
Mn |
P??S |
Cu |
Ni |
Mo |
Cr |
GB/T8162 |
10 |
0.07??0.14 |
0.17??0.37 |
0.35??0.65 |
??0.035 |
??0.25 |
??0.25 |
/ |
??0.15 |
20 |
0.17??0.24 |
0.17??0.37 |
0.35??0.65 |
??0.035 |
??0.25 |
??0.25 |
/ |
??0.25 |
35 |
0.32??0.40 |
0.17??0.37 |
0.50??0.80 |
??0.035 |
??0.25 |
??0.25 |
/ |
??0.25 |
45 |
0.42??0.50 |
0.17??0.37 |
0.50??0.80 |
??0.035 |
??0.25 |
??0.25 |
/ |
??0.25 |
16Mn |
0.12??0.20 |
0.20??0.55 |
1.20??1.60 |
??0.035 |
??0.25 |
??0.25 |
/ |
??0.25 |
12CrMo |
0.08??0.15 |
0.17??0.37 |
0.40??0.70 |
??0.035 |
??0.25 |
??0.30 |
0.40??0.55 |
0.40??0.70 |
15CrMo |
0.12??0.18 |
0.17??0.37 |
0.40??0.70 |
??0.035 |
??0.25 |
??0.30 |
0.40??0.55 |
0.80??1.10 |
12Cr1MoV |
0.08??0.15 |
0.17??0.37 |
0.40??0.70 |
??0.035 |
??0.25 |
??0.30 |
0.25??0.35 |
0.90??1.20 |
?????????(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