EN10028 {- 6 p500Qh yog lub siab ntsha tus qib steel uas tau siv dav hauv cov ntaub thaiv ntawm cov hlab ntsha thiab dej pheeb. Nws yog lub siab-zog quenched thiab tempered steel phaj tsim los ua haujlwm ntawm cov khoom siv kub tsawg, ua rau nws tsis kam rau brittle begiture yog qhov tseem ceeb.
Tshuaj lom neeg cov tshuaj:
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm P500Qh yog nruj me ntsis tswj hwm kom ntseeg tau tias cov cuab yeej tsim nyog thiab weldability. Cov neeg raug tshuaj lom neeg muaj pes tsawg yog raws li hauv qab no:
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P500QH Tshuaj Siv Tshuaj P500Qh |
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|
Teem nqi |
Lub caij max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
N |
B |
|
|
P500qh |
0.18 |
0.60 |
1.70 |
0.025 |
0.015 |
0.015 |
0.005 |
|
Mo |
CU |
Nb |
Ni |
Ti |
V |
Cr |
|
|
0.70 |
0.3 |
0.05 |
1.50 |
0.05 |
0.08 |
1.00 |
|
Carbon sib npaug: CeQ=【C + MNE C + V) / {} (NI + CU) / 15】%
Cov Khoom Siv Neeg Kho Tshuab:
Cov cuab yeej siv cov neeg kho mob ntawm P500Qh yog tus cwj pwm los ntawm nws lub zog siab thiab kev muaj zog heev, uas tau ua tiav los ntawm quenching thiab tempering cov txheej txheem. Cov cuab yeej cuab tam tau muaj raws li hauv qab no:
|
Teem nqi |
P500qh cov cuab yeej kho tshuab |
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|
Qhov tuab |
Pub |
Lub tensile |
Elongation |
|
|
P500qh |
lub hli |
Min MPa |
MPa |
Min% |
|
6-50 |
500 |
590-770 |
17% |
|
|
50-100 |
480 |
590-770 |
17% |
|
|
100-150 |
440 |
540-720 |
17% |
|
Kev Kho Cua Sov Lub xeev:
P500Qh yog muab rau hauv qhov kev xav thiab qhov kub. Cov txheej txheem kev kho cua sov no ua kom ntseeg tau tias cov hlau muaj nplua- nplej rau nws cov khoom siv zoo siab thiab tawv.
Tsawg - kub cuam tshuam ntsuas:
Cov hlau yog raug rau qhov qis - kub cuam tshuam rau kom ntseeg tau tias nws muaj kev tiv thaiv nws thiab kev cuam tshuam tsis kub. Qhov no yog ib qho tseem ceeb tshaj plaws rau cov ntaub ntawv siv hauv cov hlab ntsha siab ua haujlwm hauv ib puag ncig txias.
