1, St52, St 52-3- Z25, St {{4 4}} Z35, Z35, Z35 txhais li cas:
St52 yog Z-kev taw qhia kev ua tau zoo Steel, Z-kev taw qhia yog lub thickness qhia ntawm cov hlau phaj, thiab cov z-kev taw qhia yog kev sim Lamellar kua muag ntawm cov hlau phaj. Qhov kev txiav txim siab qeb duas los ntawm qhov siab qis yog Z35, Z25, Z15.
2. Siv cov st 52-3} steel phaj:
St 52-3 yog haum rau kev siv hauv kev tsim kho hauv tsev, av engineering, choj qauv, thawv tsim, tsheb thiab tshuab tsim.
3. St 52-3 Cov xwm txheej:
Qhov kev xa khoom ntawm st 52-3 yog tswj thiab ua li qub.
4. Tshuaj lom neeg sib xyaw ua ke ntawm St 52-3:
C: Tsawg dua lossis sib npaug rau 0. 20
Si: tsawg dua los yog sib npaug rau 0. 5
MN: {{0. {90-1. 65
P:0.035
S: 0.035
NB: {{0. {005-0. 05
V: 0.01-0.12
TI: {{{0. {006-0. 05
CR: Tsawg dua lossis sib npaug rau 0. 30
Ni: tsawg dua los yog sib npaug rau 0. 50
Cu: tsawg dua los yog 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 los yog sib npaug rau 0. 01
