?????????-20#??????-45#???????-?????г?????????
20#??????
???
GB/T8162-1999??ISO2937??ASTM A53??ASTM A106??JIS G 3441??BS EN 10210-1
???
??÷?Χ???????????????е???????????????????е??????????????????????????????
???
??10.0mm-168.3mm ??? 1.0mm-20.0mm
??繫??
|
??? |
?????? |
?????? |
|
GB/T 8162 |
D<50 |
??0.50mm |
S<4mm |
??12.5% |
|
D??50 |
??1% |
4-20mm |
+15/-12.5% |
|
S??20mm |
??12.5% |
|
DIN1629 |
D50 |
??0.50mm |
S2Sn |
+15/-10% |
|
D48.3 |
??1% |
2SnS4Sn |
+12.5/-10% |
|
S4Sn |
??9% |
|
ASTM A53 |
D<48.3 |
??0.4/-0.79mm |
??12.5% |
|
D??48.3 |
??1% |
|
ASTM A106 |
D<48.3 |
??0.4/-0.79mm |
??12.5% |
|
D48.3-114.3 |
??0.79mm |
|
D??114.3 |
??1.59/-0.79mm |
45#???????
?????е????????????????????????????????????????????????????á?
45??
???????????????????????450???????????????????????????????????顣
45???
?????????0.42-0.50%????????????0.17-0.37%????????????0.50-0.80%???????????<=0.035%???????????<=0.035%???????????<=0.25%???????????<=0.2545??
???0.45%?????
?????????????
????850
???840
???600
??????????С??600Mpa
??????????С??355Mpa
?????10%
???????40%
???????39J
??????????????????
δ??????229HBS
?????197HBS
??t???
????????????????????????????????????????????????????????????
??????
??756mm?????100mm????
??????
|
??? |
45#?????????(????????)(%) |
|
45 |
C |
Si |
Mn |
Cr |
Ni |
Cu |
|
?? |
|
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.25 |
0.30 |
0.25 |
???????
|
??? |
??????? |
|
???????MPa |
??????MPa |
???????(%) |
??????????(%) |
|
45# |
600 |
355 |
16 |
40 |
??????
|
??? |
45#?????????(????????)(%) |
|
45 |
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Cu |
|
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
??0.035 |
??0.035 |
??0.25 |
??0.25 |
??0.25 |
?????????????????????????????????????????????????????????????????????????????????????????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
|
?????λ???
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