Piv nrog rau lub cev cov ntaub ntawv ntawm cov hlau tsis muaj steel thiab cov carbon steel, qhov ntom ntawm carbon hlau yog me ntsis siab tshaj cov ferritic thiab martensitic stainless steels, thiab me ntsis qis dua li ntawm cov hlau plawv tsis xeb; lub cev tiv taus yog raws cov pa roj, ferrite yam, thiab hom martensitic. Txiav txim siab nce nrog austenitic stainless hlau; kev txiav txim ntawm linear expansion coefficient kuj yog qhov zoo sib xws, cov hlau steel austenitic stainless siab tshaj thiab cov pa carbon tsawg tsawg; Cov hlau, ferritic thiab martensitic stainless hlau yog sib nqus, cov hlau uas tsis muaj hlau nplaum yog cov tsis muaj hlau nplaum Yog tias, thaum lub zog ua haujlwm txias, ua rau muaj kev hloov ntawm cov magnetite, nws yuav ua rau cov hlau nplaum, thiab txoj kev kho kom sov yuav siv tau los tua cov kev lag luam no thiab restore nws cov khoom tsis muaj zog. Piv nrog carbon, austenitic stainless hlau muaj cov yam ntxwv nram qab no:
1) High cathode tus nqi, kwv yees li 5 zaug ntawm cov pa hlau.
2) Loj linear expansion coefficient, 40% loj dua cov hlau, thiab raws li qhov kub nce siab, tus nqi ntawm cov hlau tsis muaj hlau ntsia hlau expansion coefficient nce raws li.
3) Thermal thermal conductivity, li 1/3 ntawm cov steel.