1.4301 vs . 1.4401 Stainless Hlau Tubes: Cov Khoom Siv Tshuaj

Dab tsi yog qhov sib npaug ntawm 1.4301 stainless hlau yeeb nkab?

Thawj qhov sib npaug ntawm 1.4301 stainless hlau yeeb nkab yog AISI 304 (los yog SUS304), feem ntau hu ua 18/8 stainless hlau lossis los ntawm nws cov European xaiv X5CrNi18-10. Nws yog cov khoom siv ntau yam, austenitic, thiab corrosion-resistant alloy siv dav rau cov kav dej, tshuaj tuav, kev ua zaub mov, thiab khoom siv hauv chav ua noj.

 

Dab tsi yog qhov hardness ntawm 1.4401 cov khoom siv yeeb nkab?

Nyob rau hauv cov mob annealed, lub hardness ntawm 1.4401 (AISI 316) stainless hlau tubing yog feem ntau 215 HB (Brinell hardness) los yog kwv yees li 95 HRB (Rockwell B hardness). Qhov no yog marine -qib austenitic stainless hlau dav siv nyob rau hauv cov tshuaj, zaub mov ua, thiab marine engineering sectors vim nws tshwj xeeb corrosion kuj. Tom qab ua haujlwm txias, nws qhov hnyav nce, feem ntau yog nyob nruab nrab ntawm 260 thiab 290 HV (Vickers hardness).

 

1.4301 vs . 1.4401 Stainless Hlau Tubes: Cov Khoom Siv Tshuaj​

1.4301 (AISI 304): Feem ntau muaj chromium (18-20%) thiab nickel (8-10.5%).
1.4401 (AISI 316): Molybdenum (2-2.5%) ntxiv.

Lub ntsiab	​​1.4401 (316)​​	​​1.4301 (304)​​
Cov pa roj carbon (C).	Tsawg dua los yog sib npaug li 0.08	Tsawg dua los yog sib npaug li 0.07
Chromium (Cr).	16.0–18.5	17.5–19.5
Nickel (Ni).	10.0–14.0	8.0–10.5
Molybdenum (Mo)	​​2.0–3.0​​	Tsis muaj
Manganese (Mn).	Tsawg dua los yog sib npaug rau 2.0	Tsawg dua los yog sib npaug rau 2.0
Silicon (Si).	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug rau 1.0
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

 

1.4301 vs . 1.4401 Stainless Steel Tubes: Mechanical Properties (Cov Nqi Zoo Ntawm Chav Kub)​

Cov khoom	​​1.4401 (316)​​	​​1.4301 (304)​​
Tensile zog (MPa).	515–795	500–700
Yield zog (0.2% Offset, MPa).	205–515	205–500
Elongation (% hauv 50mm).	Ntau dua lossis sib npaug li 40	Ntau dua lossis sib npaug li 40
Hardness (HRB).	Tsawg dua los yog sib npaug li 95	Tsawg dua los yog sib npaug li 95
Qhov ceev (g / cm³).	8.0	8.0
Sib nqus teb	Feem ntau tsis yog- sib nqus (annealed), me ntsis sib nqus (txias- ua haujlwm)	Tsis yog -magnetic (annealed)

 

1.4301 vs . 1.4401 Stainless Steel: Corrosion Resistance

1.4401 (AISI 316) stainless hlau muaj superior corrosion kuj piv rau 1.4301 (AISI 304), feem ntau yog vim qhov sib ntxiv ntawm 2-3% molybdenum. Thaum 1.4301 yog qhov tsim nyog rau qhov dav dav - lub hom phiaj, tsis yog - ib puag ncig hauv hiav txwv, 1.4401 muab kev tiv thaiv zoo dua tiv thaiv cov cheeb tsam uas muaj chloride nplua nuj, dej hiav txwv, thiab cov kua qaub corrosion.

1.4301 vs . 1.4401 Stainless hlau: Daim ntawv thov

1.4301 (AISI 304) thiab 1.4401 (AISI 316) yog ob qho tib si austenitic stainless hlau, tab sis 1.4401 muaj 2-3% molybdenum, muab superior corrosion kuj tiv thaiv chlorides thiab acids piv rau qhov dav - lub hom phiaj 1.4301. 1.4401 yog qhov tseem ceeb rau kev siv tshuaj marine, 3. khoom noj khoom haus, khoom noj siv mis, thiab architectural applications.

1.4301 vs . 1.4401 Stainless hlau: Nqi

1.4401 (AISI 316) stainless hlau feem ntau yog 10-40% kim dua 1.4301 (AISI 304). Tus nqi siab dua no yog vim qhov sib ntxiv ntawm 2-3% molybdenum thiab ntau dua cov ntsiab lus nickel hauv 1.4401, uas muab kev tiv thaiv corrosion zoo dua. Thaum 1.4301 pheej yig dua thiab zoo dua rau kev siv dav dav, 1.4401 yog tus nqi ntau dua - siv tau ntev - lub sij hawm hnyav, chloride - nplua nuj ib puag ncig.

 

Cov ntaub ntawv
【1】 Shunqi.com. (2025) . 1.4401 stainless hlau: cov ncauj lus kom ntxaws tshuaj muaj pes tsawg leeg thiab tshuaj xyuas corrosion kuj.
【2】 QC Hydraulic. (tsis muaj hnub). Cov hlau twg muaj zog dua: AISI 304 lossis AISI 316.
【3】 Phau ntawv Journal ntawm Shanghai Jiaotong University. (2024). Kev tshuaj xyuas qhov ua rau thiab kev tiv thaiv kev ntsuas ntawm 316L stainless hlau pipeline corrosion.

 

Ntawm GNEE, peb muaj ntau yam ntawmEN 1.4401 (AISI 316)stainless hlau kav kom ua tau raws li koj cov kev lag luam, cov qauv, thiab corrosion-cov kav dej resistant xav tau:

Daim ntawv khoom	Specification Range
Seamless Stainless hlau yeeb nkab	OD: 6mm-610mm WT: 1mm-60mm
Welded Stainless hlau yeeb nkab	OD: 10mm-2000mm WT: 0.8mm-40mm
Round yeeb nkab / Tube	Standard & custom lengths muaj
Square & Rectangular Hollow Section	10x10mm - 300x300mm / 20x10mm - 400x200mm
Polished Stainless Hlau Tube	Grit #180 - #600 / Daim iav 8K
Thaum tshav kub kub Exchanger & Instrument Tubing	Kev cai OD / WT nrog nruj kam rau ua