Piv nrog rau cov ntaub ntawv ntawm lub cev ntawm stainless hlau thiab carbon hlau, qhov ceev ntawm carbon steel yog me ntsis siab dua li ntawm ferritic thiab martensitic stainless hlau, tab sis me ntsis qis dua li ntawm austenitic stainless hlau; lub resistivity yog raws li carbon steel, ferrite, martensitic thiab qhov kev txiav txim ntawm austenitic stainless hlau yog nce; qhov kev txiav txim ntawm linear expansion coefficient zoo sib xws, austenitic stainless hlau yog siab tshaj thiab carbon hlau yog qhov tsawg tshaj plaws; carbon steel, ferritic thiab martensitic stainless hlau yog sib nqus, austenitic stainless hlau yog tsis-sib nqus, Tab sis nws txias ua hauj lwm hardening yuav tsim magnetism thaum nws hloov mus rau hauv intensite, thiab cua sov txoj kev yuav siv tau los tshem tawm cov martensitic qauv thiab kho nws cov tsis. - magnetic zog.
Piv nrog carbon steel, austenitic stainless hlau muaj cov yam ntxwv hauv qab no:
1) Siab electronegative tus nqi, kwv yees li 5 npaug ntawm carbon hlau.
2) Loj linear expansion coefficient, 40 feem pua loj dua carbon steel, thiab nrog rau qhov kub thiab txias, tus nqi ntawm linear expansion coefficient kuj nce raws li.
3) Tsawg thermal conductivity, txog 1/3 ntawm carbon steel.
Mechanical zog ntawm stainless hlau
Txawm hais tias stainless hlau phaj los yog cov phaj kub-resistant steel, austenitic steel daim hlau muaj cov khoom zoo tshaj plaws, nrog lub zog txaus, zoo heev plasticity thiab tsis tshua muaj hardness, uas yog ib qho ntawm cov laj thawj vim li cas lawv tau siv dav. Austenitic stainless hlau zoo ib yam li lwm cov ntaub ntawv hlau, nws lub zog tensile, yield zog thiab hardness nce nrog qhov kub thiab txias; plasticity txo nrog qhov txo qis ntawm qhov kub thiab txias. Nws lub zog tensile nce uniformly nyob rau hauv qhov kub ntawm 15 ~ 80 degree. Qhov tseem ceeb tshaj: raws li qhov kub thiab txias, qhov cuam tshuam toughness txo qis, thiab tsis muaj qhov hloov pauv kub. Yog li ntawd, stainless hlau muaj peev xwm tswj tau cov yas txaus thiab toughness ntawm qhov kub thiab txias.
Thaum tshav kub kub tsis kam ntawm stainless hlau
Thaum tshav kub kub tsis kam yog hais txog ob qho tib si oxidation tsis kam lossis roj nruab nrab corrosion kuj ntawm qhov kub thiab txias, uas yog, thermal stability, thiab tib lub sijhawm, nws muaj lub zog txaus ntawm qhov kub thiab txias, uas yog, thermal zog.