SMA400AP thiab SMA400AW yog ob qho tib si JIS G 3114: 2022- ntawv pov thawj Corten Steel qib rau welded structural applications-tab sis lawv tsis hloov pauv. Lawv qhov sib txawv me ntsis tseem ceeb yog nyob rau hauv cov alloy muaj pes tsawg leeg, corrosion kuj, thiab npaj siv, uas ncaj qha cuam tshuam rau qhov project nqi, txij nkawm xav tau, thiab ntev - kev ua tau zoo. Kev nkag siab txog qhov sib txawv no yog qhov tseem ceeb ntawm kev xaiv cov qib zoo rau koj qhov kev ua haujlwm sab nraum zoov, tsis txhob muaj kev qhia ntau dhau lossis ua tsis tau zoo.
Thaum ob qib sib koom cov cuab yeej cuab tam tseem ceeb (xws li, tensile zog 400-540 MPa, yield zog Ntau dua los yog sib npaug rau 215-245 MPa) thiab yog tsim los rau atmospheric corrosion kuj, lawv cov alloy sib txawv thiab siv cov rooj plaub sib cais. Hauv qab no yog qhov tseeb, qhov ua tau zoo ntawm lawv qhov sib txawv tseem ceeb, ua raws li JIS G 3114: 2022 tus qauv.
1. Core Difference: Chemical Composition (JIS G 3114:2022 Mandated)
Thawj qhov sib txawv ntawm SMA400AP thiab SMA400AW yog lawv cov ntsiab lus alloy -tshwj xeeb npib tsib xee (Ni), uas ncaj qha boosts corrosion kuj:
SMA400AP: Tsis muaj npib tsib xee (Ni tsawg dua lossis sib npaug li 0.03%, zoo nickel-dawb). Nws txoj kev tiv thaiv corrosion yog nyob ntawm tooj liab (Cu: 0.30-0.50%) thiab chromium (Cr: 0.45-0.75%), ua rau nws haum rau huab cua huab cua.
SMA 400 AW: suav nrog cov ntsiab lus npib tsib xee tswj (Ni: 0.05–0.30%), ua ke nrog tib lub tooj liab thiab chromium ntau yam li SMA400AP. Cov npib tsib xee ntxiv no ua kom muaj kev tiv thaiv patina, txhim kho ntev - lub sij hawm corrosion kuj nyob rau hauv ib puag ncig hnyav.
Ob qib muaj cov kev txwv zoo ib yam rau cov pa roj carbon (C Tsawg dua lossis sib npaug li 0.18%), phosphorus (P Tsawg dua lossis sib npaug li 0.035%), thiab leej faj (S Tsawg dua lossis sib npaug li 0.035%) kom ntseeg tau tias muaj kev sib txuas zoo thiab tsis txhob cuam tshuam cov qauv.
2. Corrosion Resistance & Maintenance Requirements
Lawv qhov sib txawv ntawm cov alloy txhais ua kom pom qhov tsis zoo hauv kev tiv thaiv corrosion thiab kev tu ncua kev xav tau - qhov cuam tshuam tshaj plaws rau kev npaj ua haujlwm:
SMA400AP: Tsim los raupleev xim siv(raws li JIS G 3114: 2022 lub hom phiaj). Nws cov npib tsib xee-dawb muaj pes tsawg leeg txhais tau tias nws cov patina tsis ntom, yuav tsum muaj txheej tiv thaiv kom ua tiav ntev - lub sij hawm corrosion kuj. Yog tias tsis muaj xim, nws tuaj yeem txhim kho tsis sib luag hauv qhov chaw hnyav, ua rau tus nqi tu lub sijhawm.
SMA 400 AW: Engineered rauunpainted (liab) siv. Cov npib tsib xee ntxiv stabilizes patina, tso cai rau nws los tsim ib tug ntom, nws tus kheej - kho barrier uas tiv taus atmospheric corrosion tsis muaj coatings. Qhov no tshem tawm repainting thiab txo cov sij hawm ntev - kev tu lub sij hawm- ib qho txiaj ntsim tseem ceeb rau kev nyuaj - mus rau - cov qauv siv xws li txuas hniav.
3. Cov ntawv thov uas xav tau (Cov Lus Qhia Xaiv Xaiv)
JIS G 3114: 2022 ua raws txhua qib nrog rau cov kev siv tshwj xeeb, kom ntseeg tau tias kev ua tau zoo thiab tus nqi- ua tau zoo:
SMA400AP Kev Siv Zoo
Qhov zoo tshaj plaws rau tej yaam num uas thas xim yog npaj los yog corrosion kuj yog nruab nrab: lub teeb muaj framing, architectural facades (xim), gas flue daim ntaub ntawv, thiab tsawg- tu vaj tse sab nraum zoov uas txheej yog ua tau.
SMA400AW Kev Siv Zoo
Zoo meej rau cov haujlwm sab nraum zoov uas tsis tau pleev xim rau thiab ib puag ncig hnyav: cov neeg taug kev / txoj kev txuas hniav (feem ntau teev nyob rau hauv cov qauv tsim choj), siab -cov qauv hauv nroog, thiab cov haujlwm uas muaj kev saib xyuas tsis pub dhau. Nws kuj yog siv dav rau tsheb, yees, thiab ntim khoom vim nws qhov kev ua tau zoo ntawm huab cua.
4. Cov lus sib piv ceev (JIS G 3114: 2022 Aligned)
|
Feature |
SMA400AP Corten Steel |
SMA400AW Corten Steel |
|---|---|---|
|
Cov ntsiab lus Nickel |
Nickel{0}}dawb (Ni tsawg dua lossis sib npaug rau 0.03%) |
Tsis muaj: 0.05-0.30% |
|
Npaj siv |
Painted daim ntaub ntawv |
Unpainted (dawb) daim ntawv thov |
|
Corrosion Resistance |
Nruab nrab (nyob ntawm txheej) |
Txhim kho (tus kheej- kho patina) |
|
Kev Kho Kom Zoo |
Yuav tsum tau repainting/coating |
Tsawg (tsis xav tau txheej) |
|
Cov ntawv thov tseem ceeb |
Painted facades, lub teeb muaj framing, gas flues |
Cov choj, cov qauv tsis pleev xim, ib puag ncig hnyav |
Kev xaiv zaum kawg
Xaiv SMA400AP yog tias koj npaj yuav pleev xim koj cov qauv thiab xav tau tus nqi - zoo, weldable Corten Steel. Xaiv rau SMA400AW yog tias koj xav tau cov xim tsis muaj xim, tsis tshua muaj - kho cov tshuaj nrog txhim kho corrosion kuj-tshwj xeeb tshaj yog rau cov txuas hniav lossis nyuaj-kom- tswj cov qauv. Ob leeg ua tau raws li JIS G 3114: 2022 tus qauv, tab sis lawv qhov sib txawv alloy ua rau lawv zoo dua rau cov kev xav tau tshwj xeeb.
