Hom 347 Hlau Stainless?
Hom 347 stainless hlau yog Austenitic Stainless Hlau ruaj khov nrog niobium), uas yog qhov twg cov daus) ntxiv los tiv thaiv nag lossis daus ntawm cov chromium carbides. Nws tswj hwm nws txoj kev ncaj ncees, tshwj xeeb tshaj yog nyob rau hauv cov neeg muaj zog sib txawv thiab cov khoom siv tsis zoo rau hauv qhov ntau ntawm 800-1500℃f (427-816 degree). Nws yog ib qho siv tau siv hauv kev ua yeeb yam, kev ntsuas kub siab thiab kub thiab rhaub dej.
Cov Qauv Ntawm 347 Stainless Hlau
ASTM A240, ASTM A182, ASTM A276, ASTM A312, ASTM A358, ASTM A403
Kev siv tshuaj lom neeg muaj pes tsawg leeg ntawm 347 stainless hlau
| Lub ntsiab | Kev Sib Tw |
|---|---|
| Carbon (c) | Tsawg dua los yog sib npaug rau 0.08% |
| Manganese (mn) | Tsawg dua los yog sib npaug rau 2.00% |
| Silicon (yog) | Tsawg dua los yog sib npaug rau 1.00% |
| Chromium (cr) | 17.0% - 19.0% |
| Npib tsib caug (ni) | 9.0% - 13.0% |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.030% |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.045% |
| Niobium (NB) + TANTALUM (TA) | 10 × c min Min - 1.0% Max |
Cov Khoom Siv Lub Cev
| Ntiag tug | Tus nqi |
|---|---|
| Ceev | 7.7 - 8.03 g / cm³ (0.278 - 0.290 lb / nyob rau hauv) |
| Melting taw tes | 1371 - 1400 degrees (2500 - 2550 degrees f) |
| Thermal conductivity | 16.3 w / m k (212 Qib F) |
| Thermal nthuav tawm coefficiention | 10.5 × 10⁻⁶ /℃(20-600 degree) |
| Hluav taws xob tiv thaiv hluav taws xob | 72 μωω · cm (20 degree) |
| Cov cua sov tshwj xeeb | 500 J / KGACH K (0 - 100 Qib) |
Cov Khoom Siv Neeg Kho Tshuab
| Ntiag tug | Tus nqi |
|---|---|
| Lub zog tensile | Ntau dua los yog sib npaug rau 515 MPa (ntau dua los yog sib npaug rau 75 KSI) |
| Elastic txwv (0.2% offset) | Ntau dua los yog sib npaug rau 205 MPa (ntau dua lossis sib npaug rau 30 Ksi) |
| Elongation | Ntau dua los yog sib npaug rau 40% |
| Brinell hardness | Tsawg dua los yog sib npaug rau 201 |
| Rockwell Hardness B | Tsawg dua los yog sib npaug rau 95 |
| Modulus ntawm elasticity | 190 - 210gpa |
| Poisson tus piv | 0.27 - 0.30 |
| Creep tsis kam (ntawm 750 degree) | 38 - 39MPA |
| Rhuav lub zog (ntawm 750 degree, 100,000 h) | 38 - 39MPA |
| Kev cuam tshuam cov tawv (charpy v - Itch) | 60 j (longitudinal) / 40 j (transverse) |
| Qoob Qoob Phom Sij Hawm (Teb Dabtsi Yog Khoov, 20 Qib) | 240MPA |
Kev Kho Cua Sov
Annealing thiab kev ntxhov siab yog cov txheej txheem uas muaj los rov qab ua kom muaj 347 hlau lossis tshem tawm sab hauv kev ntxhov siab.
Annaling: 1010℃rau 1193℃(1850 Qib F rau 2000℃F). Sai sai txias tom qab annealing (feem ntau nrog dej) tiv thaiv cov dej nag lossis cov roj chomium carbides, txhim kho corrosion tsis kam.
Vuam
347 stainless hlau yog weldable, nrog kev tiv thaiv zoo heev rau intergranular corrosion tom qab vuam, ua tsaug rau niobium ruaj khov.
Cov hau kev: Tig, Mig thiab Kuj.
Tom qab-weld kev kho cua sov feem ntau tsis tsim nyog, tab sis 347 cov hluav taws xob tau pom zoo kom tswj cov khoom zoo sib xws hauv Weld sib koom tes.
Qhov sib txawv ntawm 347 thiab 316
316 cov hlau yog qhov zoo tagnrho thiab chloride ib puag ncig vim nws cov ntawv thov molybdenum, thaum 347 yog qhov chaw siab tiv thaiv kev txhim kho hauv kev txhim kho hauv lub sijhawm vuam. Hauv cov ntsiab lus, 316 muaj ntau dua corrosion tsis kam, thaum 347 muab tau zoo dua qhov kub sov thiab corrosion tsis kam tom qab vuam.
Qhov sib txawv ntawm SS 347 thiab 304
304 Cov hlau feem ntau yog siv rau cov ntawv thov dav dav, xws li ua noj thiab ua zaub mov noj, tab sis tsis muaj kev ruaj khov rau ib puag ncig ua ntej 800 degrees f (427 degrees). 347 muaj Niobium, uas resistions intergranular corrosion thiab haum rau kev pab kub siab. 304 muaj kev lag luam ntau dua rau kev siv txhua hnub, thaum 347 yog qhov zoo tshaj rau qhov kub thiab muaj kev sib koom tes ib puag ncig.
347 Cov Ntawv Hlau Stainless Hlau
Tuav pov thawj:Rau cov txheej txheem sib xyaw, cov ntaub qhwv, cov tshuab luam ntawv thiab tshuab machined. Muaj nyob rau hauv puag ncig, square thiab hexagonal.
Cov ntawv thiab daim hlau:Qhov zoo tagnrho rau cov khoom siv tshuaj lom neeg thiab cov kev pauv hloov cua sov. Thicker daim hlau tau siv nyob rau hauv cov hlab siab siab, cua sov thaiv, thiab boiler Cheebtsam.
Cov kav dej thiab cov leeg:Siv nyob rau hauv petrochemical, aerospace thiab lub hwj chim tsim nyog thauj cov kua thiab roj cua nyob rau hauv cov xwm txheej huab.
Yog tias koj muaj ib txoj haujlwm uas yuav tsum muaj 347 hlau Stainless, koj tau txais tos tso koj daim ntawv xaj. Gnee muaj cov khoom lag luam dav dav ntawm cov khoom nrov, cov cuab yeej siv rau ntau cov ntaub ntawv, suav nrog cov ntawv cim, coils, cov leeg, tuav thiab hlau. Txhawm rau cov tshuaj ntsuam xyuas cov khoom siv thiab cov qauv piv txwv dawb, tiv tauj peb lub Hoobkas niaj hnub no. Peb muab cov nqi sib tw thiab cov kev pabcuam zoo heev. Email: es@gescosteel.com
