????27SiMn???????#27SiMn?????豸????????-?????????
27SiMn???????
????27SiMn??????????б??GB/T17396-1998?????????????ú???????????????????????????????????????20??45??27SiMn??? 27SiMn?????????????????????????????????????????????????????????????????????????????????????????辭????????????????????????????????????????????????????????????????????????????????????????????????е??????е????????. ????HB285??????????????????
27SiMn??????????
|
??? |
??????(????????)(%) |
|
C |
Si |
Mn |
Cr?? |
Mo |
Ni |
B |
V |
|
27SiMn |
0.24-0.32 |
1.10-1.40 |
1.10-1.40 |
?? |
?? |
?? |
?? |
?? |
27SiMn???????????
|
??? |
???????MPa |
??????MPa |
????????%?? |
???????????%?? |
|
27SiMn |
980 |
835 |
12 |
40 |
27SiMn??????????????
???? ??? ?? ?? ?????????磯mm ????? ??????? ??????????????????????HBSl00??3000?? ?? ?? ?? ?? ????????b??MPa ??????s??MPa ????????5(??) ???????????(??) ???????Aku2??J ??????????C ????? ?????????? ????? ????δ?? ????δ?? ?? SiMn 27SiMn 25 920 ? 450 ????? 980 835 12 40 39 217 ??????????25??920????450???? ????1000MPa,????850MPa??????12????????????40?? ak 490.3kJ/m2?? ???? Ac3 880 Ar3 750 ?????? J HRC36/16mm 10%??? 45????55mm ?????? 25????35 ?????????HBS10/3000 <=217
????27SiMn??????????????????????????????????????????????????????????????????
27SiMn??????б??
GB/T17396-1998
??????????????????????
???????????:
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????????????:
??????綽??13382886444??????????????綽??0510-88264321??
??????綽??18014258567??????????????綽??0510-88268567??
????????????:
??????綽??13646176766??????????????綽??0510-88269158??
27SiMn??????????
????? ?????
?????????????????????????????????????????????????????????????????????????????????????????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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