ASTM tus qauv rau 304 stainless hlau yog dab tsi?
ASTM tus qauv rau 304 stainless hlau yog dab tsi?
304 stainless hlau tsis muaj ib tus qauv ASTM; Hloov chaw, cov qauv sib txawv npog nws cov ntawv thov hauv ntau hom khoom. Cov qauv txheem muaj xws li ASTM A240 (rau daim hlau, nplooj ntawv, thiab strips rau cov hlab ntsha siab / siv dav), ASTM A276 (bars / profile), thiab ASTM A312 (seamless / welded kav). Kuj tseem muaj cov qauv ASME zoo sib xws, xws li SA240, SA276, thiab SA312, uas ua kom ntseeg tau tias nws cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab ua tau raws li qhov yuav tsum tau ua rau kev siv dav dav, kav dej, thiab kev siv cov qauv.
Dab tsi yog cov qauv rau Hom 304 stainless hlau?
Hom 304 stainless hlau yog feem ntau siv thiab dav siv hom stainless hlau. Nws yog qee zaum tseem hu ua 18/8 stainless hlau, lub npe muab los ntawm nws cov nominal muaj pes tsawg leeg: 18% chromium thiab 8% npib tsib xee. Hom 304 stainless hlau yog austenitic stainless hlau thiab tuaj yeem sib sib zog nqus - kos.
Stainless hlau 304 yog ib qho dav dav -lub hom phiaj austenitic stainless hlau, uas yog nws cov corrosion kuj zoo heev, formability, weldability, thiab kub kuj. Nws nthuav tawm kev ua haujlwm ruaj khov hauv cov huab cua me me, dej tshiab, thiab ntau yam tshuaj lom neeg tshaj tawm. Nws yog dav siv hauv chav ua noj, cov khoom siv hauv tsev, kho kom zoo nkauj vaj tse, khoom noj khoom haus kev lag luam, thiab cov khoom siv tshuab dav dav. Nws yog feem ntau siv thiab raug nqi - qib stainless hlau zoo, tab sis nws tsis haum rau siab - chloride lossis corrosive ib puag ncig.
Tshuaj muaj pes tsawg leeg ntawm Stainless hlau 304
| Element | Stainless hlau 304 (UNS S30400) |
|---|---|
| Chromium (Cr) | 18.0 - 20.0% |
| Nickel (Ni) | 8.0 - 10.5% |
| Hlau (Fe) | Tshuav |
| Cov pa roj carbon (C) | ≤ 0.08% |
| Manganese (Mn) | ≤ 2.0% |
| Silicon (Si) | ≤ 1.0% |
| Phosphorus (P) | ≤ 0.045% |
| Sulfur (S) | ≤ 0.030% |
| Nitrogen (N) | ≤ 0.10% |
Mechanical zog ntawm Stainless hlau 304
| Khoom | Tus nqi |
|---|---|
| Pov thawj Stress | 200 Min MPa |
| Tensile zog | 500 - 700 MPa |
| Elongation | 45 feeb% |
Lub cev muaj zog ntawm Stainless hlau 304
| Khoom | Tus nqi |
|---|---|
| Qhov ntom | 8000.00 Kg / m3 |
| Melting Point | 1450 ° C |
| Thermal Expansion | 17.2 x 10-6 /K |
| Modulus ntawm Elasticity | 193 gp ua |
| Thermal conductivity | 16.2W/m.K |
| Hluav taws xob Resistivity | 0.072 x 10-6Ω .m |
ASTM cov qauv rau 304 stainless hlau:
ASTM A240: Npog chromium thiab chromium-nickel stainless hlau daim hlau, nplooj ntawv, thiab strips rau cov hlab ntsha siab thiab kev siv dav dav; tus qauv siv ntau heev rau cov khoom tiaj tus.
ASTM A276: Qhia meej stainless hlau tuav thiab cov duab.
ASTM A312: Muaj feem xyuam rau seamless thiab welded austenitic stainless hlau kav.
ASTM A269: Npog seamless thiab welded austenitic stainless hlau tubing rau kev siv dav dav.
ASTM A666: Muaj feem xyuam rau stainless hlau strips nyob rau hauv lub annealed mob.
Thaum qhia txog 304 stainless hlau, koj yuav tsum tau qhia nws daim ntawv (daim ntawv, raj, bar, thiab lwm yam) los txiav txim seb tus qauv ASTM siv, raws li tus qauv qhia cov kev cai rau cov khoom tshwj xeeb.
Gnee Steel tshwj xeeb hauv kev tsim khoom ntawm ntau yam khoom siv stainless hlau. Gnee Steel cov khoom ntim khoom suav nrog: Hlau Strapping: Cov kav dej nrog ib txoj kab uas hla ntawm 3 ntiv tes los yog tsawg dua yog feem ntau khi ua ke nrog polypropylene zaj duab xis los tiv thaiv xeb thaum thauj dej hiav txwv, thiab tom qab ntawd khi nrog cov hlua hlau. Ntoo Cases / Crates: Cov kav dej feem ntau yog ntim rau hauv cov rooj ntoo lossis cov thawv los tiv thaiv cov kav dej thaum lub sij hawm thauj mus los, tshwj xeeb tshaj yog cov uas ntev dua los yog muaj qhov loj dua. Seaworthy Export Ntim: Cov neeg muag khoom feem ntau siv cov txheej txheem seaworthy export ntim, uas tuaj yeem suav nrog ntau yam khoom siv thiab cov txheej txheem los tiv thaiv cov kav dej thaum thauj. Tarpaulin Ntim: Qhov no tiv thaiv los nag, dej hiav txwv, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub thawv xa khoom thaum thauj. Gnee Steel tshwj xeeb hauv kev tsim thiab muag cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob, tsheb, thiab hluav taws xob nuclear, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy pricing lossis customized alloy cov ntaub ntawv daws teeb meem, thov hu rau peb rau ib qho kev tsocai:ru@gneesteelgroup.com