1. Tshuaj tiv thaiv, abrasion tsis kam, roj kuj, kev laus tsis kam, kua muag kuj. Raws li cov yeeb nkab, nws yog ib txwm raug rau ntau yam ntaub ntawv, vim hais tias lub hose yog tshuaj resistant, yog li nws yog dav siv; piv nrog cov roj hmab ntuj, lub hose muaj 30 mus rau 50 lub sij hawm siab dua abrasion tsis kam thiab 15 mus rau 20 npaug ntawm cov roj ua haujlwm siab dua, Kev laus tsis kam yog 5 npaug ntawm cov roj hmab ntuj, thiab lub zog tsim kua muag yog 3 npaug ntawm cov roj hmab ntuj.
Qhov thib ob, qhov elasticity yog qhov zoo, cov yeeb nkab steel yog hloov tau, hloov tau yooj yim hauv kev khoov, thiab elongation kuj zoo heev.
Thib peb, qhov kev tiv thaiv txias yog qhov zoo, thiab ntau cov kav dej yuav khov ntawm qhov kub thiab txias.
4. Kev ua haujlwm zoo compressive, zoo dua cov kabmob muaj peev xwm ntawm cov yeeb nkab steel, muaj zog tiv thaiv kev vibration thiab compressive muaj peev xwm.
Tsib, nplaim hluav taws zoo retardancy, thiab cov ntaub ntawv tsis muaj tshuaj lom, saj tsis qab, muaj kev nyab xeeb thiab txhim khu kev qha ua haujlwm.
6. Rau tib qhov ntev ntawm lub teeb yeeb nkab, qhov hnyav ntawm lub hose tsuas yog ib feem peb mus rau ib feem xya ntawm cov roj hmab hose. Qhov thib rau yog qhov kev tiv thaiv me me, thiab cov phab ntsa ntawm lub raj yog du heev, yog li qhov kev tiv thaiv ntawm cov kua xa tawm kuj yog me me, yog li qhov poob kuj yog me me.
7. Cov tsos zoo nkauj dua thiab rov siv dua yog qhov zoo.
