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Dec 18, 2025

SA612 Boiler Vessel Steel Sib npaug yog dab tsi?

SA612/SA612Myog lub siab -lub zog carbon-manganese- silicon siab hlab ntsha zoo (PVQ) steel tshwj xeeb tsim los rau welded boilers thiab cov hlab ntsha siab ua haujlwm nyob rau hauv nruab nrab - txog - qhov kub thiab txias ib puag ncig (-40℃txog 425℃).

 

Tshuaj muaj pes tsawg leeg

 

Element

SA612 (%)

Cov pa roj carbon (C)

Tsawg dua lossis sib npaug li 0.27

Manganese (Mn)

0.85–1.20

Silicon (Si)

0.15–0.40

Phosphorus (P)

Tsawg dua lossis sib npaug li 0.035

Sulfur (S)

Tsawg dua lossis sib npaug li 0.035

 

Mechanical Properties

 

Khoom

SIB 612

Yield zog

Ntau dua lossis sib npaug li 260 MPa

Tensile zog

415-550 MPa

Elongation

Ntau dua lossis sib npaug li 18%

 

International sib npaug

 

SA612European Standards

TS EN 10028-3 P355N(feem ntau pom zoo sib npaug)

Tawm tswv yim: 295-355 MPa (thickness-dependent)

Tensile: 450-630 MPa

Kev cuam tshuam: Ntau dua lossis sib npaug rau 40 J ntawm -20 degree

Daim ntawv thov: siab hlab ntsha, boilers, tshav kub exchangers

P355GH(alternative European sib npaug)

Zoo sib xws mechanical zog rau P355N

Siv nyob rau hauv siab - kev pabcuam kub txog li 450 degree

 

Suav Standards

Q345R(los yog Q345R-NL rau qis- daim ntawv thov kub)

Yield: Ntau dua los yog sib npaug rau 345 MPa (rau thickness Tsawg dua los yog sib npaug rau 16mm)

Tensile: 450-590 MPa

Kev cuam tshuam: Ntau dua lossis sib npaug rau 34 J ntawm 0℃(tus qauv) lossis -20℃(yeem)

Dav siv nyob rau hauv Suav siab hlab ntsha kev lag luam

Japanese Standards

 

SA612JIS SM53B/SM53C

Tawm tswv yim: ~ 355 MPa

Tensile: 510-630 MPa

Daim ntaub ntawv: Cov hlab ntsha siab, txuas hniav, siv tshuab

JIS SM520B/SM520C(lwm txoj kev xaiv)

 

Lwm qhov sib npaug thoob ntiaj teb

DIN 1.8905/StE 460/P460N(German)

BS P460 N(British)

ISO E460 DD(International)

 

Cov lus sib piv tseem ceeb sib npaug

 

Khoom SIB 612 TS EN P355N Q345R JIS SM53B
Yield zog Ntau dua lossis sib npaug li 345 MPa 295-355 MPa Ntau dua lossis sib npaug li 345 MPa ~ 355 MPa
Tensile zog 570-725 MPa 450-630 MPa 450-590 MPa 510-630 MPa
Impact Test 27 J @ -40 degree 40 J @ -20 degree 34 J @ 0℃* 27 J @ 0℃*
Max Thickness 25 mm 300 hli 200 hli 200 hli
Carbon sib npaug Tsawg dua lossis sib npaug li 0.48% ~0.44% ~0.43% ~0.44%
Tej kev siv LNG tanks, siab - cov nkoj siab General siab hlab ntsha, boilers Petrochemical khoom, boilers Industrial machinery, siab hlab ntsha

 

Thaum twg siv cov sib npaug no?

 

SA612Rau cov haujlwm EuropeanEN 10028-3 P355N (los yog P355GH rau qhov kub thiab txias)

Cov txiaj ntsig: Muaj dav, ua raws li EU Cov Khoom Siv Hluav Taws Xob (PED)

 

Rau Asian tej yaam numSiv Q345R (Tuam Tshoj) lossis SM53B/C (Nyiv)

Q345R muaj tus nqi zoo heev -kev ua tau zoo piv rau hauv Suav lag luam

 

Rau kev hloov ncaj qha hauv cov qauv uas twb muaj lawm: SA516 Gr.70 (tab sis tsis yog qhov sib npaug)

Tawm tswv yim: 230-207 MPa (tsawg dua SA612, yuav tsum muaj cov seem tuab)

Tensile: 485-620 MPa

Kev cuam tshuam: Ntau dua lossis sib npaug rau 27 J ntawm -30℃(tus qauv) lossis -46℃(yeem)

Thickness: Mus txog 200mm (vs SA612's 25mm txwv)

 

Kev txiav txim siab tseem ceeb

 

Thickness txwvSA612 yog txwv rau 25mm thickness, thaum feem ntau sib npaug tso cai rau 200-300mm

Weldability: Txhua qhov sib npaug tswj qhov zoo weldability (CE Tsawg dua lossis sib npaug rau 0.48%), tab sis cov kev xav tau ua ntej ua ntej yuav txawv

Tsawg-kev ua haujlwm kub: SA612 muaj qhov zoo dua qis- kub toughness (-40 degree) piv rau tus qauv P355N (-20 degree) lossis Q345R (0℃). Rau cov ntawv thov cryogenic, qhia P355NL1 / NL2 lossis Q345R-NL

Daim ntawv pov thawj: Thaum hloov SA612 nrog qhov sib npaug, xyuas kom cov ntaub ntawv ua raws li cov cai ntawm cov hlab ntsha (ASME BPVC, EN 13445, GB 150)

Thov Ib Daim Quote

 

Covze tshaj qhov sib npaug rau SA612yogTS EN 10028-3 P355N(Tebchaws Europe),Q345R(Suav), thiabJIS SM53B/C(Japanese). Cov qib no sib phim SA612 lub zog thiab cov yam ntxwv toughness thaum muab kev hloov pauv ntau dua hauv cov tuab thiab muaj.

 

GNEE Steel kuj muab ntau yam boilers thiab siab nkoj steel daim hlau, xws li A204 Qib B, A515 Qib 70, A537 Chav Kawm 1, SA387 Qib 11 Chav Kawm 1, P265GH, S537 Chav Kawm 2, P355Q, P275N, P355N, P69R lwm yam yog tias koj xav paub ntau ntxiv, steel daim hlau, koj tuaj yeem hu rau kev sab laj tus xovtooj ntawm +8615824687445 lossis xa email rauru@gneesteelgroup.com. Koj tuaj yeem sab laj nrog peb, thiab peb txaus siab los teb koj cov lus nug.

 

FAQ

Cov khoom siv SA 612 yog dab tsi?

carbon-manganese- silicon steel phaj

SA612 raug tua carbon-manganese-silicon steel phaj ua rau cov hlab ntsha siab. Nws cov nplej zoo ua rau nws tsim nyog siv rau hauv nruab nrab thiab qis qhov kub thiab txias qhov kev cuam tshuam qhov tseem ceeb.

Dab tsi yog qhov muaj pes tsawg leeg ntawm ASTM A612?

ASTM A612 steel phaj yog siab -lub zog qis- alloy (HSLA) steel phaj tsim rau welded siab hlab ntsha. Nws muaj cov nominal muaj pes tsawg leeg ntawm carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, thiab tooj liab.

A612 steel yog dab tsi?

ASTM A612 specification yog Standard Specification rau Siab Vessel Phaj, Carbon Steel, Siab zog, rau nruab nrab thiab qis kub kev pab cuam. ASTM A612 encompasses carbon-manganese-silicon steel daim hlau npaj rau siv nyob rau hauv welded siab hlab ntsha rau nruab nrab thiab kub kev pab cuam.

Puas yog SA612 thiab A612 Steel Phaj yog tib yam khoom? Dab tsi yog qhov txawv ntawm Core?

Lawv yog tib hom hlau phaj. ASTM A612 yog cov qauv khoom siv, thaum ASME SA612 yog qhov tsim los tom qab ASTM A612 tau muab tso rau hauv ASME Boiler & Pressure Vessel Code, tshwj xeeb rau kev tsim cov khoom siv siab -cov kabmob.

Dab tsi yog Cov Qauv Txheej Txheem rau SA612 / A612 Steel Phaj? Puas muaj qhov txawv ntawm ASTM thiab ASME Versions?

Cov qauv kev tswj hwm yog ASTM A612 / A612M thiab ASME SA612. Tsis muaj qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab ntawm ob lub qauv; qhov sib txawv tsuas yog nyob rau hauv lawv cov txheej txheem siv tau.

Dab tsi yog Cov Qib Sib npaug ntawm SA612 / A612 hauv Suav thiab European Cov Qauv? Lawv puas tuaj yeem siv los hloov pauv ncaj qha?

Cov qib sib npaug sib npaug suav nrog EN P355GH, DIN 1.0473, thiab GB Q345R. Txawm li cas los xij, lawv tsis tuaj yeem siv los ua qhov sib npaug ncaj qha. Lawv qhov kev tsim nyog yuav tsum raug lees paub raws li cov qauv tsim thiab cov kev cai pom zoo.

Dab tsi yog qhov Yield Strength thiab Tensile Strength ntawm SA612 / A612? Lawv puas txawv nrog txawv tuab?

Qhov tsawg kawg nkaus tawm lub zog ntawm SA612 yog kwv yees li 260 MPa, thiab nws lub zog tensile yog li ntawm 485-620 MPa. Raws li lub thickness nce, qhov tso cai tsawg kawg nkaus lub zog tuaj yeem txo qis me ntsis.

Dab tsi yog qhov qis -Tsuas Qhov Kev Ntsuas Hluav Taws Xob rau SA612/A612? Puas yog Cov Kev Xav Tau ntawm -40℃thiab -45℃Raws li?

Cov qauv feem ntau yuav tsum muaj kev cuam tshuam ntawm -40 degree, thaum kuaj ntawm -45℃tsis tas yuav tsum tau ua. Yog tias ib qhov project qhia txog qhov ntsuas -45 degree, yuav tsum tau kuaj xyuas qhov cuam tshuam ntxiv thiab qhia meej meej hauv daim ntawv cog lus.

Dab tsi yog qhov tsawg kawg nkaus thiab siab kawg kev pabcuam kub rau SA612/A612?

Qhov kev pom zoo qhov ntsuas kub tsawg kawg yog kwv yees li -40 degree, thiab qhov siab tshaj plaws kev khiav hauj lwm kub yog feem ntau nyob ib ncig ntawm 400 degree, nyob ntawm seb tus qauv tsim thiab kev pab cuam nruab nrab.

Dab tsi yog Carbon sib npaug ntawm ASME SA612? Puas yog Preheating yuav tsum tau rau Vuam?

Cov pa roj carbon sib npaug feem ntau yog nyob ib ncig ntawm 0.42-0.45. Preheating ntawm 50-120℃yog pom zoo rau vuam nruab nrab thiab tuab daim hlau. Cov khoom siv vuam siv feem ntau suav nrog qis-hydrogen electrodes xws li E7018 thiab E7016.

Dab tsi yog qhov niaj hnub Thickness Range ntawm SA612 / A612, thiab Dab tsi yog qhov siab tshaj plaws Customizable Thickness?

Lub thickness niaj hnub yog 6-100 hli. Qee cov hlau mills tuaj yeem muab cov thicknesses customized txog li 150 hli, raws li kev pom zoo ntawm lawv cov dov thiab kev kho cua sov.

Dab tsi yog Cov Txheej Txheem Kev Xa Khoom rau SA612 / A612?

Cov xwm txheej kev xa khoom muaj xws li As -Rolled (AR), Normalized (N), thiab Normalized + Tempered (N + T), nrog rau cov xwm txheej zoo li qub yog siv dav tshaj plaws.

Dab tsi yog Machinability ntawm SA612? Puas yog nws yooj yim rau kev tawg?

SA612 nthuav tawm kev txiav thiab khoov zoo heev. Thaum ua tiav nrog cov txheej txheem tsim nyog thiab preheating, nws tsis yog qhov ua rau tawg.

Dab tsi yog Qhov Zoo Tshaj Plaws rau Tsawg-Kev Siv Kub: SA612 lossis SA516 Gr.70?

SA612 muab kev ua haujlwm ruaj khov ntau dua hauv cov phaj tuab thiab siab - kev ntxhov siab ua haujlwm, thaum SA516 Gr.70 muab cov nqi zoo dua- ua haujlwm tau zoo hauv cov haujlwm ua haujlwm ib txwm muaj.

Q345R puas tuaj yeem siv los hloov SA612?

Q345R tuaj yeem siv los hloov pauv hauv qee qhov kev ua haujlwm tsis yog -ASME cov haujlwm. Txawm li cas los xij, kev hloov pauv tsis pom zoo rau cov phiaj xwm xa tawm lossis cov xwm txheej uas SA612 yog qhov yuav tsum tau ua los ntawm cov lus qhia tshwj xeeb.

Qhov txawv ntawm SA612 thiab SA537 Cl.2 yog dab tsi?

SA537 Cl.2 boasts lub zog siab dua thiab qis -kev ua haujlwm kub tab sis los nrog tus nqi siab dua SA612. Nws tsim nyog rau kev ua haujlwm hnyav dua.

Puas yog SA612 Vessel Phaj haum rau LNG Cia Tank?

SA612 tsis pom zoo rau thawj LNG cia tso tsheb hlau luam ua haujlwm ntawm -162℃, tab sis nws tuaj yeem siv rau hauv LNG auxiliary systems lossis nruab nrab - mus rau qis qis.

Dab tsi yog Hydrogen -Induced Cracking (HIC) Resistance ntawm SA612 Steel Phaj?

Tus qauv SA612 tsis tso cai rau HIC cov cai. Rau cov ntawv thov uas muaj leej faj- muaj cov xov xwm, kho kom haum tsawg -sulfur thiab qis-phosphorus SA612 daim hlau yuav tsum tau siv, nrog rau kev kuaj HIC.

 

Lwm cov hlau phaj los ntawm GNEE
Lub npe Khoom siv Specification (hli) Tos Lus ceeb toom
Clad steel phaj P265GH+410,S355JR+410,A516Gr70+316,
A537CL1+304L,Q235B+304L,Q345B+304,
A516Gr70(NACE)+410,A537CL1+904L,
A537CL1+316L,A516Gr70+304L,A537CL1+304
,A516Gr70+410,A516Gr70+904L
2-300mm (raws li phaj), 1-50mm (Composited phaj) / UT, AR, TMCP.Normalized, Quenched thiab Tempered, Z Direction Test, Charpy V-Ntch impact TestThe Third Party Test, Coated or Shot Blasting and Painting.
Tsawg Alloy Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo 6 - 350 5788.56 Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam
Pressure Vessel Plate Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SAG281G, SAG281G SA387Gr22, P265, P295, P355GH, Q245R(R-HIC), Q345R(R{30}}HIC) 3 - 300 8650 Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam
High-Plate muaj zog WH785D/E,Q960D/E,Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E 8 - 120 3086.352 Quenched thiab tempered
Hnav-Resistant Phaj NM360, NM400, NM450, NM500 6 - 150 3866.297 Quenched thiab tempered
Choj Phaj Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 8 - 200 2853.621 Kub dov, normalized, kub dov tswj dov, quenched thiab tempered + toughness thiab brittleness

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