Vim li cas A302 Qib B Siab Vessel Steel Phaj yog qhov kev ua si -Changer for Chemical & Metallurgy Industries?

Cov kev lag luam tshuaj thiab metallurgy ua haujlwm nyob rau hauv cov xwm txheej phem: -20℃txog 400℃kub viav vias, siab tshaj 10MPa, thiab raug rau cov xov xwm corrosive xws li hydrogen sulfide thiab molten residues. Tau ntau xyoo, cov neeg yuav khoom tau tawm tsam nrog cov ntaub ntawv tsis sib xws-cov pa roj carbon zoo ib yam corrodes sai, qis- cov phaj alloy tsis muaj zog, thiab high-end alloys ntws cov peev nyiaj.A302 Qib B siab lub nkoj steel phajtau tshwm sim los ua ib qho kev ua si- hloov pauv, ntsuas qhov ua tau zoo thiab tus nqi rau cov khoom siv tseem ceeb.

A302 Qib B alloy steel phajUa raws li ASTM A302 / A302M cov qauv, nrog cov muaj pes tsawg leeg: carbon (tsawg dua lossis sib npaug li 0.20%), manganese (1.20-1.50%), thiab taug qab nickel / chromium. Cov qauv no muab lub zog tensile ntawm 515-655MPa thiab tawm lub zog ntau dua lossis sib npaug rau 345MPa, tuav lub zog siab ntawm cov reactors thiab cov hlab ntsha. Raws li ib tugA302 Qib B kub dov alloy steel phaj, nws cov qauv zoo ib yam tiv thaiv thermal qaug zog-tseem ceeb rau cov khoom siv uas nquag pib-ups.

A302 Gr B tshuaj muaj pes tsawg leeg

• 25 mm los yog under
• Cov pa roj carbon, max 0.2%
• Manganese, max ntsuas kub 0.95-1.30%
• Silicon, max ntsuas kub 0.15-0.40%
• Sulfur max 0.035%
• Molybdenum max 0.45-0.60%
• Phosphorus 0.035%
• Thickness 25-50 hli
• Cov pa roj carbon, max 0.23%
• Manganese, ntsuas kub siab tshaj 0.87-1.41%
• Silicon, max ntsuas kub 0.13-0.45%
• Sulfur max 0.035%
• Molybdenum max 0.41-0.64%
• Phosphorus 0.035%

A 302 gr.B Mechanical zog

• Tensile zog, kis [MPa] 75-95 [515-655]
• Yield zog, min, kis [MPa] 45 [310]
• Elongation hauv 8 nti. [200 mm], min, % 15
• Elongation hauv 2 nti. [50 mm], min, % 19

Corrosion yog ib qho kev tua neeg saum toj kawg nkaus ntawm cov cuab yeej siv khoom lag luam.A302 Qib B siab lub nkoj steel phajCov ntsiab lus tsis tshua muaj leej faj / phosphorus (tsawg dua lossis sib npaug li 0.035% txhua) txo qis pitting nyob rau hauv acidic / alkaline ib puag ncig. Ib tug Texas petrochemical cog hloov cov pa hlau nrogA302 Qib B carbon steel phajnyob rau hauv ib tug hydrogen sulfide ntauwd, ncua txij nkawm mus los ntawm 6 mus rau 24 lub hlis thiab txiav downtime nqi los ntawm 68%. Rau qis- txheej txheem kub,A302 Qib B uas tsis tshua muaj siab siab lub nkoj steel phajmuab Akv Ntau dua los yog sib npaug rau 47J ntawm -20 degree, zam kev tawg tawg.

Tsis zoo li npib tsib xee alloys pricey,A302 Qib B boilers thiab siab nkoj steel phajxa 80% ntawm kev ua haujlwm ntawm 50-70% ntawm tus nqi. Nws zoo heev weldability (carbon sib npaug tsawg dua los yog sib npaug rau 0.45%) ua kom yooj yim fabrication, txo nqi zog. Lub tuam txhab tshuaj German tau tshaj tawm 40% tsawg dua cov cuab yeej siv tom qab hloov mus rauA302 Qib B boiler steel phaj, nrog kev txuag hluav taws xob los ntawm kev txhim kho tshav kub hloov efficiency.

Rau chemical thiab metallurgy B2B buyers,A302 Qib B kub dov boiler steel phajtsis yog ib qho khoom siv xwb -nws yog ib qho kev nqis peev zoo. Nws daws cov ntsiab lus mob tseem ceeb ntawm corrosion, qaug zog, thiab tus nqi, ua raws li kev lag luam xav tau rau kev ntseeg siab thiab ruaj khov. Raws li cov txheej txheem loj hlob zuj zus, cov hlau hlau phaj no tseem yog cov kev ntseeg siab rau kev ua haujlwm ntev - lub sijhawm ua haujlwm tau zoo.

Thov Ib Daim Quote

Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email raualloy@gneesteelgroup.com.Peb zoo siab tshaj los pab koj.