Dab tsi welding pas nrig rau ASTM A516 Qib 70?
Rau vuamASTM A516 Qib 70(siab hlab ntsha hlau), feem ntau cov hlau muab tub lim yog tsawg-hydrogen, 70 ksi tensile zog pas nrig, xws li
E7018-1(stick/SMAW),Qauv: ER70S-6(MIG/GMAW/TIG), andE71T-1C/M(flux-cored/FCAW). E7018-1 yog qhov zoo dua rau qhov yuav tsum muaj kev cuam tshuam loj ntawm qhov kub qis, xws li-46∘C
ASTM A516 Qib 70 yog asiab nkoj- qib carbon steel phajuas muabzoo heev mechanical zog ntawm qhov kub thiab txias. Nws yog dav siv nyob rau hauvindustrial boilers, chemical processing, thiab petrochemical chawvim nwssiab tensile zog, cuam tshuam tsis kam, thiab ductility, ua rau nws txhim khu kev qha rau nruab nrab mus rau siab - kev pabcuam siab.
Cov yam ntxwv tseem ceeb
Tawm lub zog: 245-350 MPa
Tensile zog: 485-620 MPa
Elongation: Ntau dua lossis sib npaug li 21%
Kev cuam tshuam - kuaj ntawm -29 degree
Zoo weldability rau fabrication
Resistant rau cracking nyob rau hauv nruab nrab siab
Qib Qib
ASTM A516/A516M
Qib 70
Tsawg- carbon hlau alloy
Tsawg carbon sib npaug los txhawb kev vuam
Thickness feem ntau 6-150 mm
Pom zoo rau nruab nrab - cov hlab ntsha thiab boilers
Kev sib piv: ASTM A516 Qib 70 vs Q345R
Yield zog: Q345R me ntsis siab dua (Ntau dua lossis sib npaug rau 345 MPa) dua A516 Qib 70.
Impact toughness: A516 Qib 70 ua tau zoo ntawm -29℃.
Weldability: Q345R yooj yim rau vuam.
Txuj: A516 Qib 70 ua raws ASTM; Q345R ua raws Suav GB.
Daim Ntawv Thov Kev Sib Tham
Chav boilers
Cov hlab ntsha siab
Kub exchangers
Nruab nrab - lub tank siab
Cov nroj tsuag tshuaj thiab petrochemical
Cov chaw tsim hluav taws xob yuav tsum tau txias -kub toughness
Hom kev vuam yam twg raug pom zoo?
Kev pom zoo welding txoj kev suav nrogSMAW, GMAW, and FCAW. Preheating tej zaum yuav xav tau rau cov phaj tuab kom tiv thaiv kev tawg. Siv cov ntaub ntawv muab tub lim kom raug thiab tswj cov cua sov kom ntseeg tauCov qauv kev ncaj ncees, toughness, thiab ntev - ua haujlwm nyab xeebnyob rau hauv boilers, siab hlab ntsha, thiab industrial tanks nyob rau hauv nruab nrab mus rau siab - tej yam kev mob siab.
A516 Qib 70 puas tuaj yeem siv rau qhov kub thiab txias?
Yog, A516 Qib 70 yogcuam tshuam - kuaj ntawm -29 degree, kom ntseeg tau zoo heev qis -kub toughness. Qhov no tiv thaiv nkig tawg nyob rau hauv qhov chaw txias, ua rau nws haum rauindustrial boilers, cia tanks, thiab siab hlab ntshahauv cov chaw tsim hluav taws xob, petrochemical, thiab cov chaw tshuaj lom neeg uas ua haujlwm nyob rau hauv sub-zero tej yam kev mob.
A516 Qib 70 kuaj tau zoo li cas?
ASTM A516 Qib 70 tau dhau losKev ntsuas tensile, kev ntsuam xyuas qhov cuam tshuam (-29 degree), thiab kev kuaj pom. Thickness, yield, tensile zog, thiab elongation raug txheeb xyuas kom tau raws li ASTM cov qauv. Kev tswj xyuas kom zoo kom ntseeg taumechanical kev ua tau zoo, qis-kub toughness, thiab weldability, lav kev nyab xeeb ua haujlwm hauv boilers, cov hlab ntsha siab, thiab nruab nrab - lub tank siab.
Khoom Khoom
Cov khoom siv hauv qab no yog ASTM cov lus qhia tshwj xeeb thiab yuav raug lees paub ntawm Mill Test Report.
| Qib | Yield Point (ksi) | Tensile zog (ksi) | Tsawg. 8" Elongation % |
| 70 | 38 | 70-90 | 17 |
| Qib 70 | |
| Carbon Max, Tsawg dua lossis sib npaug li 1/2 "Thick | 0.27% |
| Carbon Max, >1/2 "& Tsawg dua los yog sib npaug rau 2" Thick | 0.28% |
| Carbon Max, >2 "& Tsawg dua los yog sib npaug rau 4" Thick | 0.30% |
| Carbon Max, >4 "Thick | 0.31% |
| Manganese | 0.85-1.20% |
| Phosphorus max | 0.025% |
| Sulfur max | 0.025% |
| Silicon | 0.15-0.40% |
1. ASTM A516 Qib 70 yog dab tsi?
ASTM A516 Qib 70 yog asiab- zog, qis- alloy carbon steel phajtsim rauCov hlab ntsha siab, boilers, thiab cov tso tsheb hlau luam. Nws muajzoo heev tensile lub zog, ductility, thiab cuam tshuam toughness ntawm qis kubRaws li ASTM A516 / A516M tus qauv. Siv dav hauv petrochemical thiab hluav taws xob tsim khoom, nws ua kom ntseeg taukev nyab xeeb kev ua haujlwm nyob rau hauv nruab nrab mus rau siab -mob siab.
2. Dab tsi yog cov ntawv thov ntawm A516 Qib 70?
Cov ntawv thov suav nrogmuaj boilers, siab hlab ntsha, tshav kub exchangers, cia tank, thiab petrochemical hlab ntsha. Nws kev sib xyaw ua ke ntawmnruab nrab mus rau siab tensile zog, qis-kub toughness, thiab ductilitytso cai rau kev nyab xeeb kev ua haujlwm nyob rau hauv siab thiab kub variations, ua rau nws nyiam xaiv nyob rau hauvkev tsim hluav taws xob, tshuaj lom neeg, thiab petrochemical kev lag luam.
3.A516 Qib 70 txawv li cas A516 Qib 65?
Qib 70 muajsiab tensile thiab yield zogtshaj qib 65 thaum tswjzoo sib xws ductility thiab weldability. Nws yog qhov zoo dua rausiab dua -siab lossis qis-kub siv, muab kev txhim khomechanical kev ua tau zoo thiab cov qauv kev nyab xeebrau boilers, siab hlab ntsha, thiab cia tanks.
4. A516 Qib 70 puas tuaj yeem ua los yog tsim?
Yog lawm, ASTM A516 Qib 70 tuaj yeem ua tautxiav, dov, thiab machinedsiv cov cuab yeej siv cuab yeej txheem. Nwszoo ductility thiab nruab nrab tensile lub zogtso cai rau fabrication rau hauv boilers, tank, thiab siab hlab ntsha. Cov cuab yeej tsim nyog ua kom cov tuab tuab thiab cov npoo du, txo qiskev nyuaj siab concentration thiab cracking txaus ntshai, kom ntseeg tau tias kev ua tau zoo nyob rau hauv nruab nrab mus rau siab - kev pabcuam siab.
5. Lub zog tawm ntawm A516 Qib 70 yog dab tsi?
Yield zog ranges los ntawm260-350 MPa, muab txaus tsis kam mus tas li deformation nyob rau hauv siab. Ua ke nrog zoo ductility, nws xyuas kom meejKev nyab xeeb ua haujlwm hauv boilers, siab hlab ntsha, thiab cia tanks, tso cai rau txhim khu kev qha fabrication, installation, thiab ntev - lub sij hawm kev pab cuam nyob rau hauv nruab nrab - siab muaj kev siv.
6. Puas yog kev tiv thaiv txheej rau A516 Qib 70?
Kev tiv thaiv txheej yog pom zoo nyob rau hauvchaw ntub dej, sab nraum zoov, lossis corrosive ib puag ncig. Cov txheej txheem muaj xws lixim, epoxy hauv ob sab phlu, los yog galvanizing. Kev siv sab hauv tsev yuav tsis xav tau txheej, tab sis kev tiv thaiv saum npoo zoo duadurability, txo kev txij nkawm, thiab txhim khu kev ruaj ntsegrau kev lag luam boilers, cov hlab ntsha siab, thiab cov tso tsheb hlau luam nyob rau hauv nruab nrab mus rau siab - siab.
7. Lub zog tensile ntawm A516 Qib 70 yog dab tsi?
Tensile lub zog ntau los ntawm485-620 MPa, muab kev tiv thaiv zoo heev rau siab thiab kev ntxhov siab sab hauv. Nws kev sib xyaw ua ke ntawmlub zog thiab ductilityUa kom muaj kev nyab xeeb thiab ua haujlwm ntawm boilers, cua sov exchangers, thiab cia tank. Qhov no ua rau A516 Qib 70 haum rauindustrial daim ntaub ntawv nrog rau nruab nrab mus rau high pressuresthiab kub sib txawv.
Thov ib tug kws tshaj lij hais rauASTM A516 Qib 70los ntawm GNEE Steel.
