??????????? ????20#?????GB9948????????????????????
?????????? ??????????? ?????????ˉ?? ???????????
GB9948?????????
GB9948????????????????????????????????????????ˉ??????????????????????????????????????? ?????Щ??ˉ??????o????1?????????????????????????????????????????????????????????и????????????????????????????????????????
| ???????? |
?????????????????????????? ??????????????????????????? |
| ??? |
????????????????? ???????? ???????? GB9948-2006 |
| 10 |
???? |
| 20 |
???? |
| 12 CrMo |
900~930?棬670~720????????????????ˉ????2h??????ˉ????1h?? |
| 15CrMo |
930~960??????680~720????????????????ˉ????2h??????ˉ????1h?? |
| 1Cr5Mo |
??? |
| 1Cr19Ni9 |
????????????????1040?檔 |
| 1Cr19Ni11Nb |
?????????????????????????????????1050?棬??Σ???????????????1095?檔 |
????20#????? GB9948??????????б??
| ??? |
???? |
??? |
???? |
??? |
???? |
| 12??1.5 |
18 |
73??4-4.5-5-6-7-8-9-10-12-15 |
50 |
219??30-40 |
65 |
| 14??1.5-2.5-3 |
20 |
76??4-4.5-5-6-7-8-9-10-12-14 |
60 |
245??8-10-14-17-20-22 |
105 |
| 16??1.5-2.5-4 |
30 |
83??4.5-5-10-12-14-16-18-20 |
30 |
245??25-28-30-34-40 |
84 |
| 18??2.3-4-5 |
20 |
89??4.5-8-10-12-14-16-18-20 |
40 |
273??7-9-12-15-18-20-25 |
100 |
| 20??2.5-3-5 |
17 |
95??4.5-6-8-10-12-14-16-20 |
50 |
273??30-35-38-40 |
50 |
| 24??2.5-3-4-5-6 |
25 |
102??4.5-5-6-7-8-10-12-14-16-20 |
80 |
299??8-12-16-20-24-28 |
60 |
?????????????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????,??????????????20#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??12Cr1MOV??10CrMO910??304??304L??316??316L??321??P11??P22??P91??T91.??й???GB8162-99?????GB8163-99????????????ù?????????GB3087-99??GB5310-85????????ˉ?ù??GB5312-8???ù??...
???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777
|
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