P355Q cov khoom siv qib yog dab tsi?
P355Qyog tus qauv European (EN 10028-6) weldable, nplua-grain,quenched thiab tempered (Q & T) alloy steelsiv rausiab hlab ntsha thiab boilers, paub zoo weldability, lub zog, thiab toughness, tshwj xeeb tshaj yog nyob rau hauv qis kub (xws li -20 degree), nrog ib tug xov tooj ntawm cov khoom1.8866, muab cov khoom zoo tshaj plaws rau siab -siab, siab-kub siv kev lag luam.
TS EN 1.8866 steel yog cov hlau alloy uas tsim los rau hauv cov khoom siv wrought. Cov khoom raug suav hais tias tsim nyog rau qhov mob quenched thiab tempered . 1.8866 yog EN tus lej tsim rau cov khoom siv no. P355Q yog EN chemical designation.
Nws muaj qhov ntom ntom ntom ntawm EN wrought alloy steels. Tsis tas li ntawd, nws muaj qhov nruab nrab siab thermal conductivity thiab lub zog tensile tsawg heev.
P355Q yog qhov siab - tawm los, nplua -cov qauv hlau tshwj xeeb tsim los rau cov khoom siv siab, tswj hwm los ntawm European tus qauvTS EN 10028-6. Cov qauv no suav nrog "Cov khoom lag luam tiaj tus ua los ntawm cov hlau rau lub hom phiaj siab" uas nyob rau hauv qhov kub thiab txias. Tsis zoo li cov hlau siv dav dav, P355Q yog kev nyab xeeb- cov khoom siv tseem ceeb siv nyob rau hauv ib puag ncig uas muaj kev ncaj ncees nyob rau hauv lub siab yog qhov tseem ceeb raws li txoj cai.
Cov yam ntxwv tseem ceeb & siv:
Txheem:TS EN 10028-6 / ISO 9328-6
Khoom siv:TS EN 1.8866.
Khoom:Siab zog, zoo plasticity, zoo heev weldability, thiab superior toughness.
Daim ntawv thov:Boilers, kub exchangers, roj & roj khoom, thiab lwm yam xav tau kev lag luam cov khoom siv siab.
Kev kho mob:Xa nyob rau hauv ib qho quenched thiab tempered (+ QT) mob rau cov khoom kho kom zoo dua qub.
Nkag siab Txoj Cai (P355Q):
P:Cov cuab yeej siv siab.
355:Yam tsawg kawg nkaus yield zog hauv Megapascals (MPa) ntawm chav tsev kub (nyob ib ncig ntawm 355 MPa).
Q:Quenched & Tempered (kub kho rau lub zog thiab toughness).
Kev sib piv
Vs. S355J2:Thaum ob leeg sib koom $355 \\text{MPa}$ tawm los, S355J2 yog cov qauv hlau rau cov tsev. P355Q tau dhau qhov kev sim nruj dua rau sab hauv purity thiab siab -tus cwj pwm kub.
Vs. P355 NH:Qhov "NH" version yog "Normalized." P355Q (Quenched thiab Tempered) feem ntau muaj cov txheej txheem zoo dua thiab muaj kev cuam tshuam zoo dua li cov qauv qub, txawm tias nws yuav tsum tau saib xyuas ntau dua thaum vuam.
Daim Ntawv Thov Kev Sib Tham
Boiler Cheebtsam:Siv nyob rau hauv fabrication ntawm boiler nruas thiab headers.
Chemical Tanks:Lub tank tso cia rau cov tshuaj phem.
Gas Lub tog raj kheej:Loj -scale industrial gas cylinders qhov hnyav - rau - lub zog piv tau saib xyuas.
Lub hardness ntawm P355Q yog dab tsi?
P355Q steel, lub cev muaj zog lub cev hlau, feem ntau muaj Brinell hardness nyob ib puag ncig150 HB, uas tseem tuaj yeem hais txog80 HRB (Rockwell B)los yog160 HV (Vickers), nrog rau ntau yam ntawm 100-150 HB nyob ntawm cov khoom tshwj xeeb thiab tus neeg muag khoom.
Puas yog P355Q siab zog steel?
Yog lawm, P355Q yog suav tias yog asiab - steel hlau, tshwj xeeb tshaj yog quenched thiab tempered (Q + T) qib siab nkoj tsim los txhim kho cov khoom siv kho tshuab, nrog rau qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa (51,480 psi) haum rau xav tau, qis - kub daim ntawv thov hauv boilers thiab cov khoom siv siab. Nws muaj superior toughness thiab weldability piv rau cov qauv carbon steels, ua rau nws ib tug txhim khu kev qha kev xaiv rau siab -siab, siab- kub, thiab sub- xoom ib puag ncig.
Puas yog P355Q carbon steel?
Yog, P355Q yog homcarbon hlau, tshwj xeeb tshaj yog lub siab -lub zog, weldable nplua- cov nplej hlau siv rau cov hlab ntsha siab thiab cov boilers, tsim raws li European tus qauv EN 10028-6, uas qhia nws cov ntsiab lus carbon (kwv yees li 0.16% max) thiab yam tsawg kawg nkaus 355 MPa yield zog. Nws yog cov hlau alloy nrog cov ntsiab lus ntxiv rau kev ua kom tawv thiab weldability, ua rau nws haum rau siab - kub thiab siab-siab daim ntaub ntawv.
Cov cuab yeej cuab tam rau P355Q steel phaj:
| Thickness (hli) | |||
| P355Q | Tsawg dua los yog sib npaug li 50 | >50 Tsawg dua los yog sib npaug rau 100 | > 100 |
| Yield zog (Ntau dua lossis sib npaug rau Mpa) | 355 | 335 | 315 |
| Tsawg dua los yog sib npaug li 100 | > 100 | ||
| Tensile zog (Mpa) | 490-630 | 450-590 | |
Tshuaj muaj pes tsawg leeg rau P355Q steel phaj (Kub ntsuas Max%)
| Cov ntsiab lus tseem ceeb ntawm P355Q steel phaj | |||||||
| C | Si | Mn | P | S | B | N | Cr |
| 0.16 | 0.40 | 1.50 | 0.025 | 0.015 | 0.005 | 0.015 | 0.30 |
| Cu | Mo | Nb | Ni | Ti | V | Zr | |
| 0.30 | 0.25 | 0.05 | 0.50 | 0.03 | 0.06 | 0.05 | |
1 Dab tsi yog cov tshuaj muaj pes tsawg leeg ntawm P355Q khoom?
P355Q yog ib qho normalized / quenched & tempered (Q) siab hlab ntsha hlau, feem ntau yog hlau, nrog cov ntsiab lus tseem ceeb xws li Carbon (Less dua los yog sib npaug rau 0.16%), Manganese (Less dua los yog sib npaug rau 1.5%), Silicon (Less dua los yog sib npaug rau 0.4%), Phosphorus (Less dua los yog sib npaug rau 0.02%) Sulfur 0.010%), Chromium (Less tshaj los yog sib npaug rau 0.3%), Nickel (Less tshaj los yog sib npaug rau 0.5%), Molybdenum (Less tshaj los yog sib npaug rau 0.25%), Vanadium (Less tshaj los yog sib npaug rau 0.06%), Niobium (Less tshaj los yog sib npaug rau 0.05%), thiab Titanium (Less tshaj los yog sib npaug rau 0.05%), thiab 0.0% zoo, 0. weldability rau siab - kev siv siab hauv kev lag luam tshuaj thiab hluav taws xob.
2 Cov khoom siv P355Q sib npaug li cas?
P355Q (EN 1.8866) yog quenched thiab tempered, weldable fine -grain steel rau lub hom phiaj siab, feem ntau piv rau ASTM A537 Class 3 lossis muaj cov khoom zoo ib yam li S355 qib steels, txawm tias ncaj qha ASTM / SAE sib npaug tsis zoo ib yam, tab sisASTM A537 Qib 3muab piv lub zog rau cov hlab ntsha siab. Lwm cov qib European zoo sib xws suav nrog P355QH, P355QL1, thiab P355QL2, nrog kev hloov pauv hauv tempering lossis txias.
3 Q txhais li cas hauv P355Q cov khoom?.
Hauv P355Q steel (EN 10028-6 tus qauv), "Q" qhia tias steel yogQuenched thiab Tempered, txheej txheem kev kho cua sov uas txhim kho lub zog, hardness, thiab toughness, ua rau nws haum rau cov hlab ntsha siab thiab siab - cov khoom kub, nrog rau "355" denoting qhov tsawg kawg nkaus yield zog ntawm 355 MPa rau tej thicknesses, thaum suffixes xws li "L2" (piv txwv li, P355QL2) qhia txog qhov kub thiab txias cuam tshuam toughness.
4P355Q steel puas tuaj yeem welded?
Yog lawm, P355Q steel yog tshwj xeeb tsim los ua weldable, raws li nws yog European standard weldable fine -grained steel (EN 10028-6) siv rau cov hlab ntsha siab thiab boilers, muab cov yas zoo thiab vuam kev ua tau zoo, tab sis cov txheej txheem tsim nyog xws li preheating (rau txias txias) thiab cov hlau muab tub lim tsim nyog yog qhov tseem ceeb rau kev tswj xyuas kev sib koom tes.
5 Tus nqi ntawm P355Q yog dab tsi?
Tus nqi ntawm P355Q, ib hom ntawm lub nkoj siab steel phaj, nws txawv ntawm qhov ntau thiab tus neeg muag khoom, xws li kwv yees li ntawm$ 0.70 txog tshaj $ 1.00 ib kilogram rau kev txiav txim loj, tab sis tuaj yeem ua tau ntau dua rau cov khoom me me lossis cov khoom tshwj xeeb xws li "R / P 355 Q" tivthaiv (ze li $ 375 rau ib yam khoom).
6 Qhov txawv ntawm P355 thiab S355 yog dab tsi?
P355 thiab S355 yog ob qho tib si European steel qib nrog qhov tsawg kawg nkaus lub zog ntawm 355 MPa, tab sis lawv ua haujlwm sib txawv:P355(piv txwv li, P355GH) yog tsim los raucov hlab ntsha siabthiab siab -kev pabcuam kub, thaumS355yog ib tug generalsteel qauvrau kev tsim kho, nrog kev hloov pauv xws li S355JR rau kev siv dav dav thiab S355NL rau qis-kub toughness. Qhov sib txawv tseem ceeb yog nyob rau hauv lawv cov qauv EN tshwj xeeb (EN 10028 rau P355 vs. EN 10025 rau S355) thiab kev siv tsom mus rau, nrog P355 muaj cov kev cai tshwj xeeb rau qhov kub thiab txias thiab S355 rau lub zog thiab weldability.
7 Puas yog P355Q steel xeb?
Yog lawm, P355Q (ib hom Q355) steel yuav xeb vim tias nws yog cov khoom siv carbon steel, tsis yog stainless, tab sis nws muaj qhov zoo atmospheric corrosion kuj thiab feem ntau kho (xim, galvanized) los tiv thaiv xeb hauv cov ntawv thov tshwj xeeb xws li cov hlab ntsha thiab cov txuas hniav, txawm tias nws muaj kev cuam tshuam rau corrosion hauv qhov hnyav, ntub dej.
Thov ib tus kws tshaj lij hais lus rau P355Q los ntawm GNEE Steel.
