1, ST52, ST52-3-Z25, ST52-3-Z35, Z15, Z25, Z35 lawv txhais li cas:
ST52 yog Z-kev taw qhia kev ua tau zoo steel, Z- kev taw qhia yog qhov tuab ntawm cov hlau phaj, thiab Z- kev taw qhia yog lamellar tear resistance test ntawm steel phaj. Qhov kev txiav txim los ntawm siab mus rau qis yog Z35, Z25, Z15.
2. Kev siv ntawm ST52-3 steel phaj:
ST52-3 yog tsim rau siv nyob rau hauv pej xeem kev tsim kho, underground engineering, choj qauv, marine lug, thawv manufacturing thiab tsheb thiab tshuab manufacturing.
3. ST52-3 tus me nyuam raws li txoj cai:
Kev xa khoom ntawm ST52-3 yog tswj thiab normalizing.
4. Tshuaj muaj pes tsawg leeg ntawm ST52-3:
C: Tsawg dua lossis sib npaug rau 0.20
Si: Tsawg dua lossis sib npaug li 0.5
Ntev: 0.90-1.65
P:0.035
S: 0.035
Nb: 0.005-0.05
V: 0.01-0.12
Nqe: 0.006-0.05
Cr: Tsawg dua lossis sib npaug rau 0.30
Ni: Tsawg dua lossis sib npaug li 0.50
Cu: Tsawg dua lossis sib npaug rau 0.40
Mo: Tsawg dua lossis sib npaug rau 0.10
N: Tsawg dua lossis sib npaug rau 0.015
Als: Ntau dua lossis sib npaug rau 0.01
