Detailed Description
?????????????????????????????????????????????????????????????????????????????????????www.lygt.com.cn www.ly6000.com lygt6000.1688.com www.lianyigangtie.cn
???????????????????????????????????????????20#?35#?45#????20Cr?40Cr????20CrMnTi????65Mn,60Si2Mn????2Cr13?3Cr13?4Cr13????1214?1215???? T8?T10????????Q345? 2Cr13?3Cr13?4Cr13??????A3?Q235?????? 20CrMo?20CrNiMo?35CrMo?42CrMo?38CrMoAl?40CrNiMo??????718?Cr12?P20???? GCr15?SUJ2???? 20#?45#?20Cr?GCr15? Q345??????
45???
45????GB?????JIS????S45C,ASTM???1045,080M46,DIN???C45 ?????45?????????????????????????1.0~4.0mm???
????
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????
?????????160HBS??????????????????????????????????????????????????????12~17mm???????????????80mm????????????????????????????????????????????????????????????????????????????????
?????
1495???????0.42~0.50%?
?????????GB????45???JIS????S45C/S48C???DIN??????1.0503???DIN????C45???BS????IC45/080A47???AFNOR????CC45???NF????C45????UNI????C45????NBN????C45-1???SS????1650????????F.114???AISI/SAE????1045????????ISO????C45E4?
??????
????? Fe????????????????
C?0.42~0.50%
Si?0.17~0.37%
Mn?0.50~0.80%
P? ?0.040%
S? ?0.045%
Cr??0.25%
Ni??0.25%
Cu??0.25%
??7.85g/cm3?????210GPa????0.269?
??????
???
??????????850???840???600?
45?????????????????????????????
????????????????
1. 45????????????????HRC55?????HRC62)????
??????????HRC55?????HRC58)?
2.45?????????????????
????
???????????????????????????+????????????0.8??1.2%??????0.1??0.25%????????0.35%???????????????????(HRC58??62)???????????
???45????????????????????????????????????????????????0.30%????????????????????0.35%????????????????????????+???????????????????
??????
?????????????740~760??????4~6h??50~100?/h???????????600?????????????197HBS???????156HBS?
?????????850-870???????170-217HBS?
???????????84010???????????60010???????
???????
GB/T699-1999?????45?????????850????840????600???????????????355MPa
GB/T699-1999????45??????600MPa??????355MPa?????16%???????40%?????39J?
?45??????
45??????HRC20~HRC30???
45??????HRC55~58??,?????HRC62?
45?????15-20?????,??????????,??????????
??????????HRC55?????HRC58??
45???????????????????????????????????????????? ?
1. 45???????????????HRC55?????HRC62?????
??????????HRC55?????HRC58??
2. 45????????????????
?????????????????????????????????????????????????????????????????????????????+?????????????
???????????
www.lygt.com.cn www.ly6000.com lygt6000.1688.com www.lianyigangtie.cn
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??????????????????????B?41?
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