Nyob rau hauv lub ntiaj teb no stainless hlau mov saw, 304 thiab 316 stainless hlau yog ob feem ntau nrhiav thiab muas austenitic qib. Rau cov neeg yuav khoom, cov kws tsim khoom, thiab pab pawg muag khoom, qhov kev txiav txim siab tiag tiag tsis yog "qhov twg zoo dua" - tab sis qib twg haum rau ib puag ncig, tus nqi hom phiaj, thiab lub neej yuav tsum tau ua.
Raws li ib tugstainless hlau manufacturers, Sxthsteel tsom rua kev muab ob qib rau tubing, sawb, daim ntawv, thiab precision Cheebtsam siv nyob rau hauv chemical, marine, kev tsim kho, thiab zaub mov industries.
Engineering sib txawv ntawm 304 thiab 316 Stainless Hlau
Ob leeg 304 thiab 316 yog nyob rau hauv300-series austenitic stainless hlau, sib koom cov neeg kho tshuab zoo sib xws tab sis txawv ntawm corrosion kuj chemistry.
Qhov sib txawv tseem ceeb: Molybdenum (Mo)
304 Stainless hlau: Muaj ~ 18% Chromium, ~ 8% Nickel
316 Stainless hlau: Zoo sib xws hauv paus muaj pes tsawg leeg +2-3% Molybdenum
👉 Qhov kev hloov me me no ua rau muaj qhov sib txawv ntawm qhov ua tau zoo hauv qhov chaw corrosive.
Kev sib piv engineering
| Khoom | 304 Stainless hlau | 316 Stainless hlau |
| Thawj alloy | Cr-Ni | Cr-Ni-Mo |
| Corrosion kuj | Zoo (ntev ib puag ncig) | Zoo heev (chloride / marine) |
| Pitting kuj | Nruab nrab | Siab |
| Kub tiv taus | Mus txog ~ 870℃(intermittent) | Me ntsis zoo dua stability |
| Machineability | Zoo | Tsawg me ntsis |
| Weldability | Zoo heev | Zoo heev |
| Tus nqi efficiency | Siab | Nruab nrab-tsawg |
Tus nqi sib txawv: Vim li cas 316 Yog Ntau Tshaj?
Tus nqi sib txawv ntawm 304 thiab 316 stainless hlau yog tsav los ntawm:
1) Cov ntsiab lus alloy
Nickel + molybdenum nce nqi raw khoom
316 feem ntau raug nqi20% -40% ntauntau 304
2) Kev lag luam volatility
Nickel tus nqi hloov pauv hnyav hnyav rau ob qib
Molybdenum ntxiv tus nqi rhiab heev rau 316
3) Lifecycle cost vs upfront cost
304 yog pheej yig dua pib
316 tuaj yeem txo cov nqi hloov / tu hauv qhov chaw hnyav
👉 Kev tsim kho engineering:
304=nqi efficiency
316=durability peev
Daim ntawv thov sib txawv (Qhov twg txhua qib yeej)
304 Stainless Hlau Daim Ntawv Thov
- Cov khoom siv ua zaub mov
- Khoom siv hauv tsev & khoom siv
- Architectural panels
- Cov kav dej (tsis yog - ib puag ncig chloride)
- General industrial tubing
316 Stainless Hlau Daim Ntawv Thov
- Marine ib puag ncig (kev raug dej ntsev)
- Tshuaj ua cov nroj tsuag
- Cov cuab yeej siv tshuaj
- Offshore roj & roj systems
- Medical implants & surgical tools
Txoj cai yooj yim:
Yogchlorides, ntsev, los yog tshuaj muaj nyob →Lag luam wholesale Stainless Hlau Capillary Tube 316
Yogdav hauv tsev lossis ib puag ncig me me →Lag luam wholesale Stainless Hlau Capillary Tube 304
Engineering Decision Guide
Es tsis txhob cim cov khoom, engineers feem ntau soj ntsuam:
Environmental yam
Chloride raug ( hiav txwv, ntsev, de-icing agents)
Chemical exposure (acids, kuab tshuaj)
Humidity theem
Cov kev cai siv tshuab
Load stress
Kub caij tsheb kauj vab
Weld qauv complexity
Kev txwv nyiaj txiag
Capex vs lifecycle nqi
Lub sijhawm kho
👉 Kev txiav txim luv luv:
Tsawg corrosion →304
Nruab nrab-siab corrosion txaus →316
304 vs 316 Industrial Qib Specification
| Qeb | 304 Stainless hlau | 316 Stainless hlau |
| ASTM Txuj | ASTM A 240 Cov Lus Qhia, A312 | ASTM A240,A312 |
| Qhov ntom | 7.93 g/m² | 7.98 g/m² |
| Tensile zog | Ntau dua lossis sib npaug li 515 MPa | Ntau dua lossis sib npaug li 515 MPa |
| Yield zog | Ntau dua lossis sib npaug li 205 MPa | Ntau dua lossis sib npaug li 205 MPa |
| Elongation | Ntau dua lossis sib npaug li 40% | Ntau dua lossis sib npaug li 40% |
| Hardness | Tsawg dua lossis sib npaug rau 201 HB | Tsawg dua lossis sib npaug rau 217 HB |
| Chloride Resistance | Nruab nrab | Siab |
| Hom ntawv | Sheet, coil, raj, bar | Sheet, coil, raj, bar |
| Qhov zoo tshaj plaws siv Case | Kev siv dav dav | Marine & chemical systems |
Xaus
Shaanxi Tonghui Steel Co., Ltd tuaj yeem muab cov raj hauv kev cai ntev, tiav, thiab cov duab kom haum rau koj qhov project. Lag luam wholesale stainless hlau 304/316/316L/904/Duplex 2205 nqe.Tiv tauj pebrau kev hais lus lossis kev txhawb nqa.
