Puas yog SS 304 zoo dua li SS 440 yeeb nkab?
Mar 30, 2026
Tso lus
Thaum muas stainless hlau tubing, ntau tus neeg yuav nug: Puas yog 304 stainless hlau tubing zoo dua 440 stainless hlau tubing? Cov lus teb yog nyob ntawm koj daim ntawv thov tshwj xeeb . 304 thiab 440 stainless hlau yog tsim los rau ntau lub hom phiaj sib txawv, thiab xaiv qhov tsis ncaj ncees lawm yuav ua rau muaj nqi ntau ntxiv lossis teeb meem kev ua haujlwm.
Dab tsi yog SS 304 Stainless Hlau Tubing?
SS 304 stainless hlau tubing yog cov khoom siv ntau yam austenitic stainless hlau (muaj 18% chromium thiab 8% npib tsib xee), muaj npe nrov rau nws zoo heev corrosion resistance, mechanical zog, thiab weldability. Nws yog hom stainless hlau siv dav tshaj plaws hauv kev lag luam thiab kev siv hauv tsev. Muaj qhov zoo ductility thiab formability-thiab cov yam ntxwv los ntawm cov tshuaj lom neeg ruaj khov- nws yog siv dav hauv kev tsim cov khoom siv hauv chav ua noj, khoom noj khoom haus ua tshuab, khoom siv kho mob, thiab kev tsim vaj tsev.
Dab tsi yog SS 440 Stainless Hlau Tubing?
SS 440 stainless hlau tubing yog hais txog ib pawg ntawm martensitic stainless hlau (tshwj xeeb suav nrog qib 440A, 440B, thiab 440C).
Cov ntaub ntawv no yog tus cwj pwm los ntawm kev ua haujlwm siab heev thiab hnav tsis kam, nrog rau kev ua haujlwm tsis zoo corrosion; Lawv lub zog tuaj yeem txhim kho ntxiv los ntawm kev kho cua sov.Lawv feem ntau siv rau hauv kev tsim cov cuab yeej txiav, bearings, thiab li qub (tab sis lawv feem ntau tsis siv rau cov kav dej dav dav).
SS 304 vs SS 440 Yeeb Nkab: Chemical Composition
| Khoom (%) | SIB 304 | SWB 440A | SIB 440B | SWB 440C |
|---|---|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.08 | 0.65 – 0.75 | 0.75 – 0.95 | 0.95 – 1.20 |
| Chromium (Cr) | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | - | - | - |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 2.00 | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 1.00 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 1.00 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.040 | <= 0.040 | Tsawg dua lossis sib npaug li 0.040 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.030 |
| Molybdenum (hli) | - | Tsawg dua lossis sib npaug li 0.75 | Tsawg dua lossis sib npaug li 0.75 | Tsawg dua lossis sib npaug li 0.75 |
SS 304 vs SS 440 Yeeb Nkab: Mechanical Properties
| Khoom | SS304 cev | SS 440 yeeb nkab (kub kho) |
|---|---|---|
| Tensile zog (MPa) | Ntau dua lossis sib npaug li 515 | 760 – 1900 |
| Yield zog (MPa) | Ntau dua lossis sib npaug rau 205 | 450 – 1600 |
| Elongation (%) | Ntau dua lossis sib npaug li 35 | 5 – 15 |
| Hardness | Tsawg dua lossis sib npaug rau 201 HB | 50-60 HRC |
SS 304 Tubing vs SS 440 Tubing: Corrosion Resistance
SS 304 yeeb nkab muaj superior, siab - theem corrosion kuj- haum rau tshuaj, khoom noj khoom haus, thiab marine ib puag ncig-vim nws austenitic, nickel- nplua nuj qauv. Hloov pauv, SS 440 tubing (martensitic) tsuas muaj kev ua haujlwm tsis zoo; nws yog npaj rau siab -hardness thiab hnav- daim ntaub ntawv resistant thiab yog nquag rusting nyob rau hauv hnyav, ntub tej yam kev mob.
SS 304 Yeeb Nkab vs SS 440 Tubing: Hardness thiab Strength
SS 440 tubing muaj qhov hnyav dua (txog 58-60 HRC) thiab lub zog zoo dua piv rau SS 304 yeeb nkab, ua rau nws zoo tagnrho rau cov hniav thiab cov kabmob. Hloov pauv, SS 304 yog ib qho softer, ntau dua, thiab corrosion ntau dua -tiv taus austenitic steel, whereas SS 440 yog siab -carbon, hardenable martensitic steel.
SS 304 Tubing vs SS 440 Tubing: Weldability thiab Machinability
SS 304 yog ib qho yooj yim rau vuam thiab tsim. Hauv qhov sib piv, SS 440 yog qhov nyuaj rau vuam vim nws cov ntsiab lus carbon siab thiab yuav tsum tau ua ntej- cua sov ua ntej vuam thiab tom qab- vuam kub kho.
SS 304 Yeeb Nkab vs SS 440 Tubing: Magnetism
SS 304 yog cov khoom tsis yog- sib nqus, qhov SS 440 yog hlau nplaum.
Puas yog 304 stainless hlau zoo dua 440C?
Thaum 304 stainless hlau ua tau zoo dua nyob rau hauv cov yam ntxwv ntawm corrosion kuj, formability, thiab machinability, nrog rau nto moo zoo ntawm "khoom noj khoom haus- qib" thiab yooj yim - rau- cov cuab yeej huv si, 440C stainless hlau yog txoj kev zoo dua nyob rau hauv nws siab hardness, siab zog, thiab hnav tsis kam los ntawm kev kho cua sov.
Yog tias koj muaj qhov project- cov kev cai tshwj xeeb rau 3041 stainless hlau kav, peb txais tos koj xaj. GNEE khaws cov ntaub ntawv tseem ceeb ntawm cov khoom nrov rau koj xaiv. Muaj nyob rau hauv ob qho tib si seamless thiab welded daim ntawv, cov kav dej no tuaj yeem ua tiav kom tau raws li koj cov lus qhia meej. Rau cov ncauj lus kom ntxaws cov ntaub ntawv muaj pes tsawg leeg lossis thov cov qauv dawb, thov hu rau peb lub Hoobkas tam sim. Peb muab cov nqi sib tw thiab kev pabcuam tshwj xeeb.
Ntim siv cov ntawv tsis muaj dej tsis zoo thiab cov hlua khi hlau, peb cov khoom ua tau raws li cov qauv xa tawm rau kev xa nkoj hiav txwv thiab tsim nyog rau ntau hom kev thauj mus los; Hloov chaw, ntim tuaj yeem kho raws li cov neeg siv khoom tshwj xeeb.
Ntim
Txheem Export Ntim rau Stainless Hlau Phaj
1. Polished nto tiav; 2. Ntim ntim;
3. Ntoo crate ntim; Ntoo pallet ntim;
4. Thawv lossis bulk cargo shipping; 5. Customized raws li tus neeg yuav tsum tau muaj.
Xa kev nug