Stainless hlau 304 thiab 316 - Qhov txawv

Qhov txawv ntawm 304 thiab 316 Stainless Hlau yog dab tsi?

Cov lus teb ncaj nraim yog 304 muaj 18% chromium thiab 8% npib tsib xee thaum 316 muaj 16% chromium, 10% nickel thiab 2% molybdenum. Ob leeg ntawm 300 qib steels no paub txog lawv cov vuam zoo heev thiab tsim cov khoom, uas muab rau lawv siv thoob plaws ntau qhov kev lag luam. Masteel yog tus muab khoom tseem ceeb ntawm 304 thiab 316 qib stainless hlau thiab tuaj yeem muab ob qho tib si txiav thiab cov lus qhia txog kev tsim khoom thiab cov khoom.

 

304 stainless hlau vs 316

Nqi

Tus nqi ntawm cov hlau tsis muaj steel feem ntau nyob ntawm cov alloys uas muaj nyob rau hauv lawv cov muaj pes tsawg leeg. Tag nrho cov hlau tsis muaj steel yuav tsum muaj tsawg kawg yog 10.5% chromium thiab lawv yog alloyed nrog hlau uas ua rau ib tug loj feem ntawm lawv zaum kawg pleev. Lwm cov ntsiab lus tam sim no muaj kev cuam tshuam rau cov khoom thiab cov yam ntxwv thiab thaum kawg, tus nqi.
316 muaj qhov tsawg kawg nkaus 2.0% molybdenum uas ua rau nws muaj kev tiv thaiv corrosion ntau dua li 304 txawm li cas los xij, vim nws yog cov khoom kim dua, feem ntau ua rau 316 qib siab dua hlau.

 

Yog xav paub ntxiv, mus saib:

Stainless hlau home page

Chemical compositions ntawm stainless hlau

Cov ntaub ntawv stainless hlau

Surface finish designations

 

Magnetism

Ob qib yog austenitic uas txhais tau hais tias lawv tsis muaj cov khoom sib nqus tab sis kev ua haujlwm txias tuaj yeem cuam tshuam rau qhov no. Thaum cov hlau tsis muaj hlau raug tsim los yog txiav, yuav muaj qhov nce me ntsis hauv lawv cov khoom sib nqus txawm tias qhov no tsuas yog me.

 

Tshuaj muaj pes tsawg leeg

Qib	C	Si	Mn	P	S	N	Cr	Ni	Mo
304	0.07	1.00	2.00	0.045	0.015	0.10	17.5 - 19.5	8.0 - 10.5	-
316	0.07	1.00	2.00	0.045	0.015	0.10	16.5 - 18.5	10.0 - 13.0	2.0 - 2.5