Raws li peb txhua tus paub, cov ntaub ntawv ntawm stainless hlau fackeners tau faib rau hauv Anustenitic Stainless Hlau, Ferritic Stainless Hlau thiab Martensitic Stainless hlau.
Cov qib ntawm stainless hlau bolts tau muab faib ua 45, 50, 70 xyoo, A4, Martensite C1, C4. Nws txoj kev nthuav qhia yog xws li A2-70, ua ntej thiab tom qab "-" qhia txog cov khoom siv ntsia liaj qhov rooj thiab ua tau zoo.
1.Ferritic stainless hlau
(15% -18% chromium) - Ferritic stainless hlau muaj lub zog tensile ntawm 65,000 - 87,000 PSI. Txawm hais tias nws tseem tiv taus corrosion, nws tsis pom zoo rau kev siv nyob rau hauv thaj chaw uas yog ib me ntsis siab corrosion nrog kub siab dua, thiab cov kev yuav tsum muaj. Cov khoom siv no tsis tuaj yeem kho cua sov. Vim yog cov txheej txheem moulding, nws sib nqus thiab tsis haum rau soldering. Ferritic qib suav nrog: 430 thiab 430F.
2.martensic stainless hlau
(12% -18% chromium) - Martensitic Stainless hlau yog suav tias yog cov hlau nplaum sib nqus. Nws tuaj yeem yog cov kho cua sov kom nce nws lub hardness thiab tsis pom zoo rau vuam. Stainless hlau ntawm hom no muaj xws li: 410, 416, 431. Lawv muaj lub zog tensile ntawm 180,000 thiab 250,000 psi.
Hom 410 thiab hom 416 tuaj yeem txhawb nqa los ntawm kev kho cua sov, nrog lub hardness ntawm 35-45hrc thiab zoo machinability. Lawv yog cov cua sov-resistant thiab corrosion-resistant-resistant stainless hlau screws rau cov laj thawj dav dav. Hom 416 muaj cov lus faj sulfur me ntsis thiab yog ib qho yooj yim-txiav stainless hlau. Hom 420, nrog cov ntawv faj sulfur ntawm R0.15%, tau txhim kho cov khoom siv neeg kho mob thiab tuaj yeem txhawb nqa los ntawm kev kho cua sov. Qhov siab tshaj plaws hardness nqi yog 53-58hrc. Nws yog siv rau cov hlau stainless hlau uas yuav tsum muaj zog dua.
3.TeTenitic Stainless Hlau
(15% -20% chromium, 5% -19% npib tsib xee) - Austenitic Stainless hlau muaj lub siab tshaj plaws corrosion ntawm peb hom. Chav kawm no ntawm cov hlau tsis muaj zog no suav nrog qib hauv qab no: 302, 304, 304, 3247, thiab 348. Lawv kuj muaj lub zog tensile ntawm 80,000 - 150,000 psi. Seb nws yog corrosion tsis kam, lossis nws cov yam ntxwv zoo sib xws.
Hom 302 yog siv rau machined screws thiab tus kheej-tapping bolts.
Hom 303 nyob rau hauv thiaj li yuav txhim kho kev txiav tawm, ib qho nyiaj me me yog ntxiv rau hom cab 303 stainless hlau, uas yog siv los ua cov txiv ntoo los ntawm bar Tshuag.
Hom 304 yog qhov tsim nyog rau kev ua cov hlau stainless los ntawm cov txheej txheem kub cov txheej txheem, xws li ntev tshaj qhov loj loj bolts thiab cov txheej txheem loj tshaj tus txheej txheem txias.
Hom 305 yog qhov tsim nyog rau kev ua cov hlau Stainless los ntawm cov txheej txheem txias, xws li txias tsim cov txiv ntseej thiab hexagonal bolts.
316 thiab 317 hom, nkawd ob leeg muaj lub zog tso tawm mo, yog li lawv lub zog sov siab thiab corrosion tsis kam yog siab dua 18-8 stainless hlau.
Hom 321 thiab Hom 347, Hom 321 muaj ti, ib qho tsis ruaj khov alloy, thiab hom 347 muaj NB, uas txhim kho cov kev txhim kho ntawm cov khoom siv. Nws yog qhov haum rau cov qauv hlau stainless qhov chaw uas tsis muaj annealed tom qab vuam lossis muaj kev pabcuam ntawm 420-1013 ° C.
Lub Sijhawm Post: Jul-18-2023
