1.4401 vs 1.4404 Stainless hlau: Tshuaj muaj pes tsawg leeg
Apr 09, 2026
Tso lus
Cov khoom siv dab tsi yog 1.4401 steel yeeb nkab?
1.4401 steel yeeb nkab yog qib siab - zoo austenitic stainless hlau feem ntau hu ua toas AISI 316 lossis marine - qib stainless hlau. Nws nta ntxiv molybdenum (2%-3%), muab kev tiv thaiv corrosion zoo dua piv rau 304, ua rau nws zoo tagnrho rau chloride-nplua nuj, tshuaj lom neeg, thiab marine ib puag ncig.
1.4404 steel khoom yog dab tsi?
1.4404 (tseem hu ua AISI 316L lossis X2CrNiMo17-12-}2) yog qis-carbon, austenitic chromium-nickel-molybdenum stainless hlau tsim los rau siab corrosion kuj, tshwj xeeb tshaj yog tiv thaiv chlorides thiab acids. Nws yog dav siv nyob rau hauv welded Cheebtsam rau tshuaj ua, tshuaj, marine, thiab zaub mov industries vim nws zoo heev weldability thiab kev tiv thaiv rau intergranular corrosion.
Cov ntaub ntawv dab tsi sib npaug rau 1.4401 1.4404?
Khoom siv 1.4401 (X5CrNiMo17-12-2) yog sib npaug rau AISI 316 stainless hlau, thaum 1.4404 (X2CrNiMo17-12-2) yog sib npaug rau AISI 316L. Ob leeg yog molybdenum-cov kabmob austenitic stainless steels nquag siv sib hloov los yog sib koom ua ke (316/316L) vim lawv cov corrosion kuj zoo heev thiab cov khoom zoo sib xws.
1.4401 vs 1.4404 Stainless hlau: Tshuaj muaj pes tsawg leeg
| Khoom | 1.4401 Stainless hlau (316) | 1.4404 Stainless hlau (316L) |
|---|---|---|
| Tshuaj muaj pes tsawg leeg | ||
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.08% | Tsawg dua lossis sib npaug li 0.03% |
| Manganese (Mn) | 2.00-2.50% | 2.00-2.50% |
| Silicon (Si) | 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 0.045% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.030% |
| Chromium (Cr) | 16.00-18.00% | 16.00-18.00% |
| Nickel (Ni) | 10.00-14.00% | 10.00-14.00% |
| Molybdenum (hli) | 2.00-3.00% | 2.00-3.00% |
| Nitrogen (N) | Tsawg dua lossis sib npaug li 0.10% | Tsawg dua lossis sib npaug li 0.10% |
Lus Cim: Vim nws cov ntsiab lus siab dua me ntsis, lub zog ntawm 1.4401 feem ntau yog marginally siab dua li ntawm 1.4404; Txawm li cas los xij, hauv kev siv tswv yim, qhov sib txawv yog negligible.
1.4401 vs 1.4404 Stainless hlau: Mechanical Properties
Ntawm chav tsev kub hauv cov tshuaj -annealed mob
| Mechanical Properties | ||
| Yield zog (Re) | Ntau dua lossis sib npaug rau 205 MPa (min) | Ntau dua lossis sib npaug rau 170 MPa (min) |
| Tensile zog (Rm) | 500-700 MPa | 480-650 MPa |
| Elongation (A) | Ntau dua lossis sib npaug li 40% | Ntau dua lossis sib npaug li 40% |
| Hardness (HRB) | Tsawg dua los yog sib npaug li 90 | Tsawg dua los yog sib npaug li 90 |
| Modulus ntawm Elasticity (E) | 193-200 GPa | 193-200 GPa |
| Impact Toughness (Charpy V-notch) | Ntau dua lossis sib npaug rau 40 J ntawm -196 degree | Ntau dua lossis sib npaug rau 40 J ntawm -196 degree |
1.4401 vs 1.4404 Stainless hlau: Lub cev muaj zog
(Ob chav kawm muaj ze li ntawm lub cev zoo tib yam)
| Lub cev muaj zog | ||
| Qhov ntom | 7.98 g/m² | 7.98 g/m² |
| Melting Point | 1375-1400 degree | 1375-1400 degree |
| Thermal Expansion (20-100 degree) | 16.0 × 10⁻⁶ / degree | 16.0 × 10⁻⁶ / degree |
| Thaum tshav kub kub (20 degree) | 500 J/kg · K | 500 J/kg · K |
| Hluav taws xob tiv thaiv (20 degree) | 0.72 μΩ | 0.72 μΩ |
| Thermal conductivity (20 degree) | 16.3 W/m·K | 16.3 W/m·K |
1.4401 vs 1.4404 Stainless hlau: Corrosion Resistance
Ob leeg 1.4401 (316) thiab 1.4404 (316L) yog tooj liab-alloyed austenitic stainless hlau, tus yam ntxwv los ntawm kev ua haujlwm zoo heev rau pitting thiab chloride corrosion. Qhov tseem ceeb sib txawv yog nyob rau hauv lawv cov ntsiab lus carbon: 1.4404 yog qhov qis -carbon variant (Less tshaj los yog sib npaug rau 0.03%), muab superior tiv thaiv intergranular corrosion piv rau tus qauv -carbon 1.4401 (tsawg dua los yog sib npaug rau 0.07%), ua rau nws tshwj xeeb zoo{{12} welded tivthaiv. Ob qib qhia tau tshwj xeeb corrosion kuj nyob rau hauv feem ntau ntawm marine thiab tshuaj ib puag ncig.
1.4401 vs 1.4404 Stainless hlau: Weldability
1.4404 (316L) muaj qhov zoo tshaj plaws weldability piv rau 1.4401 (316) vim nws ultra- cov ntsiab lus tsis tshua muaj carbon (0.03%), uas tshem tawm qhov xav tau tom qab-weld annealing los tiv thaiv intergranular corrosion. Thaum ob leeg yog austenitic stainless hlau nrog cov khoom zoo, 1.4404 yog qhov zoo dua rau cov tuab, nyuaj, lossis hnyav weldedstructures.
1.4401 vs 1.4404 Stainless hlau: Lub zog
The strength properties of 1.4401 (AISI 316) and 1.4404 (AISI 316L) are essentially identical; the yield strength is typically >200 MPa, thiab lub zog tensile ntog hauv thaj tsam ntawm 500-700 MPa. Qhov sib txawv tseem ceeb nyob hauv lawv cov ntsiab lus carbon (1.4404:<0.03% C; 1.4401: <0.07% C); 1.4404 exhibits superior resistance to intergranular corrosion and is well-suited for welding.
1.4401 vs 1.4404 Stainless hlau: Daim ntawv thov
1.4401 stainless hlau tubing yog tsim nyog rau kev siv dav dav - lub hom phiaj kev siv, kev ua zaub mov, thiab cov khoom siv uas tsis tas yuav tsum muaj kev sib txuas.
1.4404 stainless hlau tubing yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv tshuaj lom neeg, cov khoom siv tshuaj, thiab kev siv dej hiav txwv uas cuam tshuam nrog kev vuam dav.
Peb tau tsim kev sib koom tes sib sib zog nqus nrog rau sab saum toj -tier steel mills suav nrog TISCO, BAOSTEEL, POSCO, thiab JISCO kom paub meej tias tag nrho peb cov ntaub ntawv raw. Peb tuav cov khoom muag sawv ntsug ntawm ntau tshaj 1,000 tons ntawm 316/316L series Tshuag, npaj rau kev xa khoom tam sim los pab koj txo cov sij hawm txhuas. Peb cov chaw tau nruab nrog cov khoom siv dav dav ntawm cov tshuab ua haujlwm siab heev, muaj cov laser txiav, waterjet txiav, dabtsi yog khoov, coil slitting, thiab muaj peev xwm polishing nto. Peb ua raws li cov kev tswj xyuas tag nrho thoob plaws hauv peb txoj haujlwm thiab muab Mill Test Certificate (MTCs) uas ua raws li EN 10204 3.1 tus qauv; Tsis tas li ntawd, peb zoo siab tos txais kev soj ntsuam ywj pheej los ntawm thib peb- cov koom haum tog xws li SGS, BV, thiab TUV.
| International Standards | ASTM A240, EN 10088-2, EN 10088-3, JIS G4304/4305 |
| Qib sib npaug | 1.4401/316/SUS316; 1.4404 / 316L / SUS316L |
| Nto tiav | 2B, BA, No.1, No.4, HL (Hairline), 8K Daim iav, Sandblasted |
Muaj Cov Khoom Muag los ntawm Gnee
| Yam khoom | Yam khoom | Specification / Dimensions (Customizable) |
| Cov khoom lag luam | Daim Ntawv & Phaj | Txias dov: 0.3-6.0mm; Kub dov: 3.0-100mm |
| Hlau Coils | Dav: 1000/1219/1500/2000mm los yog Slit edge | |
| Cov khoom siv ntev | Round Bars | Txoj kab uas hla: 2mm - 500mm (Peed, Polished, los yog Dub) |
| Hexagonal / Square Bars | Rau machining thiab structural Cheebtsam | |
| Pav ca Bars | Txiav los yog kub dov tiaj tiaj bar | |
| Tubular khoom | Seamless Pipes / Tubes | Rau siab - siab los yog corrosive fluid thauj |
| Welded Pipes / Tubes | Loj txoj kab uas hla los yog cov ntaub ntawv kho kom zoo nkauj | |
| Cov duab puab | Lub kaum sab xis, Channels, Beams | Qhov sib npaug / tsis sib npaug, U-channels, H-beams |
| Fittings & Flanges | Cov yeeb nkab Cheebtsam | Lub luj tshib, Tees, Reducers, Flanges (WN, SO, BL) |
Xa kev nug