SS 321 cov khoom sib npaug
Tso lus
Dab tsi yog 321 stainless hlau khoom?
321 stainless hlau yog austenitic stainless hlau yam ntxwv los ntawm kev sib ntxiv ntawm titanium (Ti) mus rau 304 stainless hlau, uas zoo heev txhim kho nws tsis kam mus rau intergranular corrosion thiab nws siab - kub zog. Nws yog tsuas yog siv nyob rau hauv kev tsim cov khoom siv uas yuav tsum tau kub thiab corrosion kuj, xws li aerospace Cheebtsam, combustion pipes nyob rau hauv petrochemical khoom, thiab boiler tshav kub exchangers.
AISI 321 cov khoom sib npaug
Qhov sib npaug tseem ceeb rau AISI 321 stainless hlau yog 1.4541 (EN tus qauv) thiab SUS321 (Japanese designation). Lwm qhov sib npaug suav nrog 321S31 (British) thiab 0Cr18Ni10Ti (Suav). Kev lag luam, AISI 321 feem ntau yog siv los ua qhov ruaj khov ntawm qib 304, nrog rau kev sib ntxiv ntawm titanium los tiv thaiv intergranular corrosion tom qab vuam.
AlSl 321 tshuaj muaj pes tsawg leeg
| C. | Si | Mn | P | S | Cr | Ni | N | Ti | |
|---|---|---|---|---|---|---|---|---|---|
| MIN | - | - | - | - | - | 17.000 | 9.000 | - | - |
| MAX | 0.080 | 0.750 | 2.000 | 0.045 | 0.030 | 19.000 | 12.000 | 0.100 | 0.700 |
SS 321 Mechanical Properties
Txheeb xyuas cov lus hauv qab no rau cov khoom tseem ceeb ntawm 321 stainless hlau:
| Khoom | Tus nqi (Metric / Imperial) |
| Tensile zog | 621 MPa (90.1 ksi) |
| Yield zog | 276 MPa (40.0 ksi) |
| Rockwell Hardness | 80 PAB |
| Elongation ntawm Break | 45% (hauv 2 nti) |
| Young's Modulus | 193 GPa (28.0 msi) |
AlSl 321 Physical Properties
Xyuas cov lus hauv qab no rau cov khoom tseem ceeb ntawm 321 stainless hlau:
| Khoom | Tus nqi zoo (Metric / Imperial) |
| Qhov ntom | 9.01 g / cc (0.326 lb / hauv³) |
| Melting Point | 1371 - 1399 ° (2500 - 2550 ° F) |
| CTE, Linear (0 - 100 degree) | 16.6 µm/m{1}}℃(9.22 µin/in{3}}℃F) |
| CTE, Linear (tsawg dua lossis sib npaug rau 871 degree) | 20.2 µm/m{1}}℃(11.2 µin/in{3}}℃F) |
| Tshwj xeeb kub muaj peev xwm | 0.500 J/g{1}}℃(0.120 BTU/lb-℃F) |
| Thermal conductivity (100 degree) | 16.0 W/m-K (111 BTU-in/hr-ft²-℃F)) |
| Thermal conductivity (500 degree) | 22.0 W/m-K (153 BTU-in/hr-ft²-℃F)) |
| Hluav taws xob Resistivity | 0.0000720 ohm -cm |
| Sib nqus Permeability | Tsawg dua los yog sib npaug rau 1.02 |
Dab tsi yog qhov ceev ntawm 321 SS?
Qhov ceev ntawm 321 stainless hlau yog kwv yees li 7.92 g / cm³ lossis 0.286 lb / in³. Tus nqi no tuaj yeem siv rau kev suav hauv engineering thiab tsim muaj feem xyuam rau nws qhov hnyav thiab qhov hnyav.
Puas yog 321 stainless hlau sib nqus?
Stainless hlau 321 feem ntau tsis yog-sib nqus nyob rau hauv nws cov annealed mob, tab sis nws yuav ua tau me ntsis sib nqus tom qab txias ua hauj lwm.
Qhov txawv ntawm SS 321 thiab 304 yog dab tsi?
Qhov sib txawv tseem ceeb ntawm SS 321 thiab 304 yog qhov sib ntxiv ntawm titanium (Ti). Vim tias nws cov ntsiab lus titanium, 321 stainless hlau muaj qhov zoo dua - qhov kub thiab txias thiab tsis kam mus rau intergranular corrosion, ua rau nws haum rau siv nyob rau hauv siab - qhov kub thiab txias . 304 stainless hlau, ntawm qhov tod tes, tsis muaj titanium thiab yog haum rau corrosive ib puag ncig.
SS 321 vs SS 304 nqe
Tam sim no, tus nqi lag luam rau SS 321 stainless hlau yog kwv yees li USD 5.50–7.50 ib kg, piv rau SS 304 stainless hlau, uas nyob ib ncig ntawm USD 4.20–6.00 ib kg. Tus nqi siab dua ntawm SS 321 qhia txog nws cov titanium-stabilized muaj pes tsawg leeg, muab kev txhim kho siab - kub lub zog thiab txhim kho kev tiv thaiv rau intergranular corrosion, ua rau nws zoo tagnrho rau aerospace, tshuaj, thiab siab -kub industrial applications. Kev yuav khoom los ntawm tus neeg muag khoom ntseeg siab zoo li GNEE ua kom muaj ntawv pov thawj zoo, xa khoom sai, thiab tus nqi sib tw, txo qhov kev pheej hmoo ntawm qhov project thiab ua kom muaj kev ntseeg siab ntev ntev.
Nyem kom tau txais cov qauv dawb
