ASTM A709 Qib 50W Steel Phaj yog dab tsi?
ASTM A709 Qib 50W steel phajyog lub siab -lub zog, qis- alloy weathering steel teev rau kev siv cov qauv, tshwj xeeb tshaj yog kev tsim kho choj.
Nyob rau hauv tam sim no ASTM A709 / A709M-26 specification, Qib 50W [345W] muaj qhov tsawg kawg nkaus yield zog ntawm 50 ksi (345 MPa) thiab raug cais raws li qib nrog txhim kho atmospheric corrosion kuj. A709 specification npog cov qauv steel daim hlau, cov duab, thiab tuav rau txuas hniav.
Piv nrog rau cov qauv hlau, A709 Qib 50W steel ua ke nrog cov qauv tsim muaj zog nrog kev txhim kho kev tiv thaiv atmospheric corrosion.
Qhov no ua rau A709 50W steel phaj haum rau cov choj girders, cov khoom siv hauv tsev, kev thauj mus los, thiab lwm cov qauv hlau sab nraum zoov uas xav tau ntev - yuav raug huab cua.
ASTM A709 Qib 50W Weathering steel Specification
| Khoom | ASTM A709 Qib 50W |
|---|
| Txuj | ASTM A709 / A709M / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / ASTM A709 / A709M / ASTM A709 / ASTM A709 / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M / ASTM A709 / A709M) Kev ntsuas kev ntsuas |
| Qib | 50W [345W] |
| Hom hlau | High-lub zog qis- alloy huab cua steel |
| Yield zog | Ntau tshaj lossis sib npaug ntawm 50 ksi / Ntau dua lossis sib npaug ntawm 345 MPa |
| Tensile zog | Ntau tshaj lossis sib npaug ntawm 70 ksi / Ntau dua lossis sib npaug ntawm 485 MPa |
| Elongation hauv 2 nti / 50 mm | Ntau dua lossis sib npaug li 18% |
| Elongation hauv 8 nti / 200 mm | Ntau dua lossis sib npaug li 21% |
| Daim ntawv thov | Cov choj, girders, cov qauv sab nraum zoov |
| Corrosion Resistance | Txhim kho atmospheric corrosion kuj |
Rau cov phaj siab txog li 4 nti (100 hli) tuab, ASTM A709 / A709M yuav tsum tau sau qhov tsawg kawg nkaus lub zog ntawm 345 MPa, lub zog tensile yam tsawg kawg nkaus ntawm 485 MPa, thiab qhov tsawg kawg nkaus elongation ntawm 18% nyob rau hauv 2 in. (50 mm) los yog 21% hauv 8 in. Gra (200 mmW)
ASTM A709 Qib 50W Corten steel Chemical Composition
Cov tshuaj muaj pes tsawg leeg ntawm A709 Qib 50W steel phaj yog tsim los muab qhov sib npaug ntawm lub zog, atmospheric corrosion resistance, thiab kev ua haujlwm zoo.
Cov kev cai ASTM ib txwm paub qhov txawv ntawm Hom A thiab Hom B cov khoom sib xyaw. Lub ntsiab alloying ntsiab muaj xws li carbon, manganese, silicon, nickel, chromium, tooj liab, thiab vanadium
| Element | Hom A | Hom B |
| Carbon, C | Tsawg dua lossis sib npaug li 0.19% | Tsawg dua lossis sib npaug li 0.20% |
| Manganese, Mn | 0.80–1.25% | 0.75–1.35% |
| Phosphorus, P | Tsawg dua lossis sib npaug li 0.030% * | Tsawg dua lossis sib npaug li 0.030% * |
| Sulfur, S | Tsawg dua lossis sib npaug li 0.030% * | Tsawg dua lossis sib npaug li 0.030% * |
| Silicon, Sib | 0.30–0.65% | 0.15–0.50% |
| Nickel, Nia | Tsawg dua lossis sib npaug li 0.40% | Tsawg dua los yog sib npaug li 0.50% |
| Chromium, Cr | 0.40–0.65% | 0.40–0.70% |
| tooj, Cu | 0.25–0.40% | 0.20–0.40% |
| Vanadium, V | 0.02–0.10% | 0.01–0.10% |
* Qee cov khoom lag luam tso cai sib txawv phosphorus thiab sulfur txwv nyob rau hauv cov kev cai tshwj xeeb. Cov neeg yuav khoom yuav tsum tau lees paub qhov yuav tsum tau muaj chemistry thiab cov kev xav tau ntxiv ntawm kev yuav khoom thiab daim ntawv pov thawj zeb xeem.
Vim li cas thiaj xaiv A709 Qib 50W Weathering Steel?
Lub ntsiab kom zoo dua ntawm ASTM A709 50W steel phaj yog kev sib xyaw ntawm 345 MPa yam tsawg kawg nkaus yield zog thiab txhim kho atmospheric corrosion kuj.
Cov hlau yog tsim los ua kom zoo dua nyob rau hauv huab cua raug ntau dua li cov qauv qauv, ua rau nws muaj txiaj ntsig tshwj xeeb rau cov qauv choj sab nraum zoov.
Thaum tsim kom raug thiab raug rau cov huab cua tsim nyog, huab cua hlau tuaj yeem tsim cov txheej txheem oxide tiv thaiv lub sijhawm. Txawm li cas los xij, huab cua kev ua tau zoo nyob ntawm cov yam ntxwv xws li kev khaws cov dej noo, chloride raug, muaj kuab paug, dej, thiab kev nthuav dav ntawm cov qauv.
A709 Qib 50W yuav tsum yog li ntawd yuav tsum tau xaiv raws li qhov chaw pabcuam tiag tiag es tsis yog xav tias huab cua steel tshem tawm txhua qhov corrosion.
A709 Qib 50W vs A709 Qib 50
Qhov sib txawv tseem ceeb tshaj plaws ntawm A709 Qib 50 thiab A709 Qib 50W yog atmospheric corrosion ua haujlwm. Ob qib muaj qhov nominal yam tsawg kawg nkaus tawm lub zog ntawm 50 ksi (345 MPa), tab sis Qib 50W yog tshwj xeeb los ntawm ASTM raws li muaj kev txhim kho atmospheric corrosion kuj. Qib 50W kuj tseem cuam tshuam nrog ASTM A588 / A588M cov cai, raws li cov kev cai tshwj xeeb.
Daim ntawv thov ntawm ASTM A709 Qib 50W Steel Phaj
A709 Qib 50W steel phaj feem ntau cuam tshuam nrog kev tsim choj thiab kev siv sab nraum zoov. Cov kev siv ib txwm muaj xws li cov choj girders, choj decks thiab cov tswv cuab ntawm cov qauv, txhawb cov qauv, kev thauj mus los, thiab cov khoom tsim los ntawm cov huab cua.
Rau cov phiaj xwm choj, kev sib xyaw ua ke ntawm 50 ksi yield zog, 70 ksi yam tsawg kawg nkaus tensile lub zog, thiab kev txhim kho atmospheric corrosion kuj muab qhov sib npaug ntawm kev thauj khoom - kev muaj peev xwm thiab ntev - lub sij hawm kev pabcuam sab nraum zoov.
Peb ASTM A709 Qib 50W Steel Phaj Daim Ntawv Thov
A709 Qib 50W Steel Phaj Chaw Tsim Khoom thiab Kev Tswj Xyuas Zoo
Rau kev siv cov qauv, kev yuav khoom ASTM A709 Qib 50W steel phaj yuav tsum koom nrog ntau dua li tsuas yog tshawb xyuas lub npe qib. Tus neeg muag khoom yuav tsum muaj peev xwm muab cov ntaub ntawv traceability thiab cov ntaub ntawv ntsuam xyuas cuam tshuam, suav nrog tshuaj lom neeg muaj pes tsawg leeg, yield zog, tensile zog, elongation, qhov ntev, thiab lwm yam kev ntsuam xyuas yuav tsum tau los ntawm kev yuav khoom specification.
Raws li qhov yuav tsum tau ua ntawm qhov project, cov neeg yuav khoom kuj tseem tuaj yeem hais qhia cov kev xav tau ntxiv, kev sim cuam tshuam, qhov yuav tsum tau ua kom tawv nqaij, lossis lwm yam kev kuaj xyuas. ASTM A709 / A709M hais tias yuav tsum tau siv ntxiv thaum lawv tau teev tseg hauv daim ntawv xaj khoom.
Yuav Ua Li Cas ASTM A709 Qib 50W Steel Phaj
Thaum muab A709 Qib 50W steel phaj, cov neeg yuav khoom yuav tsum muab qhov xav tau tuab, dav, ntev, ntau, qhov chaw xa khoom, muaj feem xyuam rau ASTM tsab, kev xeem yuav tsum tau ua, thiab seb puas yuav tsum tau ua ntxiv. Qhov no tso cai rau tus neeg xa khoom steel kom paub meej tias muaj ntau lawm thiab muab cov lus hais meej dua.
Raws li cov khoom siv hlau, Gnee tuaj yeem muab ASTM A709 Qib 50W steel phaj rau kev siv choj thiab cov qauv, nrog rau qhov ntev thiab kev txhawb nqa cov ntaub ntawv zeb raws li qhov yuav tsum tau ua.
Cov neeg siv khoom tuaj yeem tiv tauj Gnee nrog lawv qhov xav tau A709 Qib 50W phaj tuab, qhov ntev, qhov ntau, thiab qhov chaw mus thov cov lus hais.
Thov ib tug A709 Qib 50W Steel Phaj Quote
Nrhiav rau ASTM A709 Qib 50W steel phaj? Hu rau Gnee rau kev lees paub qib, muaj, qhov ntev, qhov yuav tsum tau kuaj, thiab ib qhov project -cov lus tshwj xeeb.
