Peb cov engineers muaj lub rooj sib tham nrog kev tshawb fawb ntawm maraging 350 siab zog steel.
cov neeg siv khoom xaj maragng 350 steel los ntawm peb rau kev siv dav hlau nrog kev cog lus raws li kev cog lus.
Tshuaj ntsuam xyuas ntawm c350 steel
3.1.1 (Wt%)
|
C |
Si |
Mn |
S |
P |
Ni |
Co |
Mo |
Ti |
Al |
Cr |
Cu |
|
Tsawg dua lossis sib npaug rau 0.030 |
Tsawg dua lossis sib npaug rau 0.10 |
Tsawg dua lossis sib npaug rau 0.10 |
Tsawg dua lossis sib npaug rau 0.01 |
Tsawg dua lossis sib npaug rau 0.01 |
18.0/19.0 |
11.50/12.50 |
4.60/5.20 |
1.30/1.60 |
0.05/0.15 |
Tsawg dua lossis sib npaug rau 0.5 |
Tsawg dua lossis sib npaug rau 0.5 |
3.2 mechanical khoom ntawm maraging 350 steel
mechanical khoom yuav tsum tau tom qab quenching thiab tempering
|
σb MPa Tensile zog |
Yield zog |
δ5 % elongation |
Ψ % txo qhov chaw |
AKv J cuam tshuam |
KIC |
HRC tawv |
|
|
Ntau dua lossis sib npaug rau 2255 |
Ntau dua lossis sib npaug rau 2155 |
Ntau dua lossis sib npaug 7 |
Ntau dua lossis sib npaug li 38 |
Ntau dua lossis sib npaug li 14 |
Kev xeem tiag |
Ntau tshaj los yog sib npaug rau 50 |
quenching thiab tempering txoj kev
Txoj kev 820 degree × 1h, AC +480 degree × 3h, AC