Q345D isiqinisekiso sekhwalithi yepayipi lensimbi eliphansi lokushisa eliphansi

Q345D low temperature resistant steel pipe quality assurance Featured Image

Incazelo emfushane:

I-Q345D iyimpahla yepayipi yensimbi. U-Q umele isivuno salolu hlelo lokusebenza. Okulandelayo i-345 ibhekisela enanini lesivuno salokhu kwaziswa, okungaba ngu-345. Inani lesivuno liyancipha ngokukhula kobukhulu bezinto ezibonakalayo.

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Izici eziyinhloko ze-Q345D ipayipi yensimbi engenamthungo

Izakhiwo ezinhle zemishini ebanzi, ukushisela, ukusebenza okubandayo nokushisayo nokumelana nokugqwala, nokuqina okuhle kwezinga lokushisa eliphansi

Isicelo somkhiqizo wepayipi lensimbi elingenamthungo le-Q345D

Imikhumbi, ama-boilers, imikhumbi yokucindezela, amathangi okugcina uwoyela, amabhuloho, okokusebenza kwesiteshi sikagesi, ukuphakamisa imishini yokuthutha kanye nezinye izingxenye zesakhiwo ezishiselwe ezinomthwalo omkhulu.

Ukuqhathaniswa kwepayipi lensimbi elingenamthungo le-Q345D nezinga elidala

Insimbi ebulewe engu-18nb equkethe i-Nb, enezakhiwo ezifana ne-14MnNb, isetshenziselwa ikakhulukazi ama-cranes, ama-blower, imishini yamakhemikhali, njll.

I-09mncupti atmospheric corrosion resistant steel inokuqina okuhle komthelela wezinga lokushisa eliphansi, ukushisela nokusebenza okubandayo nokushisayo. Isetshenziswa kakhulu kuzo zonke izinhlobo zemishini ezindaweni ezinomswakama nezinethayo kanye nemvelo egqwalayo

I-12mnv insimbi yokushisa ephansi enokushisa okusebenzayo - 70 ℃ isetshenziselwa izingxenye zesakhiwo semishini yesiqandisi esebenza ekushiseni okuphansi.

I-14MnNb inezakhiwo ezifanayo nensimbi engu-18nb futhi isetshenziselwa ikakhulukazi imikhumbi nezinye izingxenye zesakhiwo ezinokushisa okusebenzayo okungu-20-450 ℃

I-16Mn inezici ezinhle ezibanzi zemishini, ukusebenza okuphansi kwezinga lokushisa, ukusebenza kokunyathela okubandayo, ukusebenza kwe-welding kanye nokusebenza kahle. Isetshenziswa kakhulu ezimayini, ezokuthutha, embonini yamakhemikhali neminye imishini

Izakhiwo ze-16mnre zifana nensimbi eyi-16Mn, ukuqina komthelela kanye nezakhiwo zokugoba ezibandayo zingcono kune-16Mn, futhi inhloso iyafana nensimbi eyi-16Mn.

I-Q345D ipayipi lensimbi ingenye yezinto zepayipi lensimbi.

Q345D ipayipi lensimbi

I-Q345A, Q345B, Q345C, Q345D kanye ne-Q345E amamaki ekhwalithi. Ayanda ukusuka ku-a kuye ku-e, ikakhulukazi ngenxa yomehluko wokushisa okunomthelela obangelwa okuqukethwe okuhlukene kwezinto ezincane ezifana ne-phosphorus nesibabule, okubonisa umehluko kuzinga lokushisa elinomthelela kanye nezakhiwo zemishini zokwakheka kwamakhemikhali epayipi.

Q345A, awukho umthelela; Q345B, 20 ° umthelela ojwayelekile wokushisa; Q345C, 0 degree umthelela; Q345D, kuyinto - 20 degree umthelela; I-Q345E ingu-40 degree umthelela. Emazingeni okushisa omthelela ahlukene, amanani omthelela nawo ahlukile.

Q amandla okukhiqiza awekho ngaphansi kuka-345mp, futhi izinga lekhwalithi libonisa ukuthi liqukethe izakhi zokungcola (ikhabhoni, i-manganese, i-silicon, isulfure ne-phosphorus). Ingabe inani lokungcola (izakhi) ensimbi. Kamuva i-A, B, C kanye no-D, kuyancipha okuqukethwe ukungcola

I-Q345A iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.045%

I-Q345B iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.040%

I-Q345C iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.035%

I-Q345D iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.030%

I-Q345E iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.025%

Ukungcola kwe-phosphorus nesibabule kunsimbi, kuba kubi kakhulu ukuqina komthelela

Q345A -

Q345B Akv hhayi ngaphansi kuka 34 at 20 ℃

Ku-Q345C 0 ℃, i-Akv ngeke ibe ngaphansi kuka-34

Q345D - Akv hhayi ngaphansi kuka-34 at 20 ℃

Ku-Q345E - 40 ℃, i-Akv ayikho ngaphansi kuka-27

Isizathu sokugcina ukuthi ukuncishiswa kokungcola kwe-P kanye ne-s ensimbi kukhuthaza ukuthuthukiswa kokuqina komthelela ekushiseni okuphansi. Enye iwukwakheka kwamakhemikhali e-Q345 kanti enye yimishini ye-Q345.

C:≤0.18 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.030 S:≤0.030 S:≤0.030 Ni:≤0.30 Cr≤0.30 Cu:≤0.20 Al:≥0.015 V.1.050-050:

Ukwakhiwa kwamakhemikhali kwepayipi elingenamthungo le-Q345B:

C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.040 S:≤0.040 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 V:0.02-0.1015 Nb:0.

Ukwakhiwa kwamakhemikhali we-Q345A ipayipi elingenamthungo:

C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.045 S:≤0.045 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 V:0.02-0.1015 Nb:0.

Ukwakheka kwamakhemikhali kwepayipi le-Q345C elingenamthungo:

C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.035 S:≤0.035 S:≤0.035 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 Al:≥0.015 V0.5:0.0.0.

Ukwakheka kwamakhemikhali kwepayipi le-Q345E elingenamthungo:

C:≤0.18 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.025 S:≤0.025 S:≤0.025 Ni:≤0.30 Cr≤0.30 Cu:≤0.20 Al:≥0.015 V.1.050-050:

Izakhiwo zemishini ye-Q345D ipayipi yensimbi engenamthungo:

Amandla okuqina: 490-675 amandla esivuno: ≥ 345 ubude: ≥ 22

Izakhiwo zikamshini we-Q345B ipayipi elingenamthungo: