Hauv cov khoom siv hlau stainless thiab cov haujlwm engineering, SS304L thiab SUS304L qib yog nrhiav tom qab, tab sis feem ntau to taub yuam kev. Qee cov lus nug nquag nug los ntawm cov neeg siv khoom yog:
Puas yog SS304L thiab SUS304L yog cov khoom qub?
Vim li cas lawv zoo tib yam tab sis ua raws li kev cai sib txawv?
Dab tsi yuav tsum tau teev nyob rau hauv cov ntaub ntawv xa tawm, kev sib tw lossis kos duab engineering?
Kab lus no yuav piav qhia qhov sib txawv ntawm SS304L thiab SUS304L, suav nrog cov qauv, tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, kev siv thiab cov neeg yuav khoom cov lus nug nquag.
Qhov txawv ntawm SS304L thiab SUS304L yog dab tsi?
SS304L thiab SUS304L xa mus rau tib yam tsis tshua muaj cov hlau tsis muaj steel hlau, qhov "SS" (US / International Standard) thiab "SUS" (Japanese JIS Standard) tsuas yog qhia cov qauv nomenclature, thaum "L" sawv cev rau cov pa roj carbon tsawg (tsawg dua lossis sib npaug li 0.03%), ua rau nws zoo tshaj rau kev siv vuam tsis zoo 0.0. (tsawg dua los yog sib npaug rau 0.08% carbon).
SS304L txhais li cas?
SS304L yog cov pa roj carbon tsawg ntawm cov khoom siv dav siv 304 stainless hlau, tshwj xeeb los ntawm nws cov corrosion kuj zoo heev, lub zog thiab yooj yim ntawm fabrication, tshwj xeeb tshaj yog txhim kho weldability ua tsaug rau nws cov ntsiab lus carbon tsawg (ntau tshaj 0.03%), uas tiv thaiv carbide nag lossis daus. Qhov no ua rau nws zoo tagnrho rau cov khoom tuab hauv kev ua zaub mov, kev siv tshuaj lom neeg thiab aerospace.
SUS304L khoom yog dab tsi?
SUS304L, uas tsis tshua muaj carbon version ntawm SUS304, yog heev resistant rau intergranular corrosion. Txij li thaum carbide nag lossis daus yog txo qis thaum lub sijhawm vuam, SUS304L khaws nws cov kev tiv thaiv corrosion tsis tas yuav tsum muaj kev kho cua sov tom qab vuam. Tom qab-weld annealing tsuas yog tsim nyog rau cov ntawv thov nyob rau hauv cov kev ntxhov siab siab.
SS304L thiab SUS304L: Standard System Sib piv
| Yam khoom | SS 304 L | SUS 304 L |
|---|---|---|
| Standards System | ASTM / AISI | JIS |
| Cov Standards | ASTM A240/A276/A312 | JIS G4303/G4304/G4305 |
| Qib Qib | 304l ua | SUS 304 L |
| Kev lees txais thoob ntiaj teb | Siab heev | Siab (Asia-focused) |
SS304L thiab SUS304L: Tshuaj muaj pes tsawg leeg (los ntawm qhov hnyav, %)
| Element | SS304L (ASTM) | SUS304L (JIS) |
|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.03 | Tsawg dua los yog sib npaug li 0.03 |
| Silicon (Yog) | Tsawg dua los yog sib npaug li 1.00 | Tsawg dua los yog sib npaug li 1.00 |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 2.00 | Tsawg dua lossis sib npaug li 2.00 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.045 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.030 |
| Chromium (Cr) | 18.0-20.0 Nws | 18.0-20.0 Nws |
| Nickel (Ni) | 8.0-12.0 Nws | 8.0-12.0 Nws |
SS304L thiab SUS304L: Sib piv cov cuab yeej cuab tam
| Mechanical Property | SS 304 L | SUS 304 L |
|---|---|---|
| Tensile zog (MPa) | Ntau dua lossis sib npaug rau 485 | Ntau dua lossis sib npaug rau 480 |
| Creep zog (MPa) | Ntau dua lossis sib npaug li 170 | Ntau dua lossis sib npaug li 175 |
| Elongation (%) | Ntau dua lossis sib npaug li 40 | Ntau dua lossis sib npaug li 40 |
| Hardness (HB) | Tsawg dua lossis sib npaug li 201 | Tsawg dua lossis sib npaug li 201 |
Corrosion kuj ntawm SUS304L stainless hlau
SUS304L stainless hlau muaj kev tiv thaiv zoo heev hauv ntau qhov chaw, tshwj xeeb tshaj yog atmospheric thiab me ntsis corrosive, vim nws 18% chromium thiab 8% npib tsib xee cov ntsiab lus, muab kev tiv thaiv zoo rau cov organic acids, tsis muaj zog phosphoric / sulfuric acids thiab dej tshiab. Txawm li cas los xij, nws muaj feem cuam tshuam rau pitting / crevice corrosion hauv cov tshuaj chloride kub (xws li dej hiav txwv) thiab kev ntxhov siab corrosion saum 60 degrees, yog li 316L yog qhov zoo dua rau cov dej hiav txwv / chloride hnyav dua. Nws cov ntsiab lus carbon tsawg tiv thaiv carbide nag lossis daus, ua rau nws zoo tagnrho rau vuam.
Weldability ntawm SUS304L stainless hlau
SUS304L stainless hlau muaj qhov zoo tshaj plaws weldability, superior rau tus qauv 304 vim nws cov ntsiab lus carbon tsawg, uas tiv thaiv rhiab heev (intergranular corrosion / IGC) nyob rau hauv lub tshav kub cuam tshuam cheeb tsam (HAZ) tsis tas yuav tsum tau tom qab vuam kub kho nyob rau hauv feem ntau, ua rau nws zoo tagnrho rau tuab seem thiab corrosive ib puag ncig. Nws feem ntau koom nrog TIG / MIG siv 308L muab cov khoom siv.
Dab tsi yog qhov txawv ntawm SUS304L thiab SS304?
SUS304L yog cov pa roj carbon tsawg ntawm SS304 (Hom 304), qhov sib txawv tseem ceeb yog cov ntsiab lus carbon: 304 muaj txog li 0.08% carbon, thaum 304L muaj qhov siab tshaj plaws ntawm 0.03%, ua 304L zoo tagnrho rau kev siv welded raws li nws tiv thaiv carbide nag lossis daus thiab tswj corrosion-0 tom qab qhov yuav tsum tau muaj 3. SUS304L muaj kev tiv thaiv zoo tshaj plaws rau kev sib xyaw ua ke tom qab vuam, ua kom nws zoo dua rau cov ntu tuab (dhau 5 hli) thiab cov tshuaj lom neeg / dej hiav txwv, txawm tias 304 muaj lub zog tensile siab dua me ntsis.
Dab tsi yog qhov txawv ntawm SUS304L thiab SUS316L?
SUS304L thiab SUS316L yog ob qho tib si tsis tshua muaj carbon austenitic stainless hlau, tab sis SUS316L muaj molybdenum, muab nws superior tiv thaiv chlorides (xws li dej ntsev) thiab pitting corrosion piv rau SUS304L, ua rau nws zoo dua rau marine, tshuaj thiab tshuaj ib puag ncig, thaum SUS304L yog ntau dua rau cov khoom siv hauv chav ua noj. Qhov "L" qhia tias cov pa roj carbon tsawg, uas txhim kho kev sib txuas los ntawm kev tiv thaiv kev nkag siab, txawm hais tias qhov sib txawv tseem ceeb hauv kev tiv thaiv corrosion yog vim muaj cov molybdenum tam sim no hauv 316L stainless hlau.
Kev muab khoom thiab kev hloov kho ntawm SS304L / SUS304L cov khoom
Cov ntaub ntawv khoom muaj
SS304L thiab SUS304L stainless hlau feem ntau yog muab rau hauv cov ntaub ntawv hauv qab no: cov nplooj ntawv, coils thiab strips, raj (seamless / welded), tuav thiab kev cai fabricated qhov chaw.
Hom specifications
Thickness: 0.3 hli - 50mm (Customizable)
Dav / Length: Txiav rau qhov loj me
Nto tiav: 2B, BA, No.1, No.4, HL, Daim iav tiav
Txuj: ASTM, AISI, JIS, EN, DIN
Kev Pabcuam: Laser txiav / Plasma txiav, dabtsi yog khoov thiab sib sau, Vuam thiab Fabrication, Drilling / Punching
Daim ntawv pov thawj thiab kev tswj xyuas zoo: Daim ntawv pov thawj Hoobkas (EN 10204 3.1), ISO certified ntau lawm, kev tshuaj xyuas thib peb muaj (SGS, BV, TUV)
