Q345D ubushushu obuphantsi obuxhathisa umbhobho wentsimbi isiqinisekiso somgangatho

Q345D low temperature resistant steel pipe quality assurance Featured Image

Inkcazelo emfutshane:

I-Q345D yimpahla yepayipi yensimbi. Q imele isivuno sesi sixhobo. I-345 elandelayo ibhekisela kwixabiso lemveliso yale nto, malunga ne-345. Ixabiso lemveliso liyancipha ngokunyuka kwezinto eziphathekayo.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu eziphambili ze-Q345D ipayipi yensimbi engenamthungo

Iipropathi ezilungileyo ezibanzi zoomatshini, ukuwelda, ukusebenza okubandayo kunye nokutshisa kunye nokumelana nomhlwa, kunye nokuqina okuhle kobushushu obuphantsi.

I-Q345D imveliso yombhobho yentsimbi engenamthungo isicelo

Iinqanawa, iibhoyila, iinqanawa zoxinzelelo, iitanki zokugcina i-oyile, iibhulorho, izixhobo zesikhululo samandla, ukunyuswa kunye noomatshini bokuthutha kunye nezinye iindawo ezidityanisiweyo ezinomthwalo omkhulu.

Ukuthelekiswa kwe-Q345D ipayipi yensimbi engenamthungo kunye nomgangatho omdala

I-18nb ebulewe intsimbi equkethe i-Nb, enezakhiwo ezifana ne-14MnNb, isetyenziselwa kakhulu iikhranethi, ii-blower, oomatshini beekhemikhali, njl.

09mncupti atmospheric corrosion resistant steel has good low-low-temperature impact toughness, weldability kunye nokubanda kunye nokusebenza okushushu. Isetyenziswa ikakhulu kuzo zonke iintlobo zoomatshini kwiindawo ezifumileyo nezinemvula kunye nemekobume engcolisayo

I-12mnv intsimbi ephantsi yobushushu obuphantsi kunye nobushushu obusebenzayo - 70 ℃ isetyenziselwa ikakhulu kwiindawo zesakhiwo soomatshini befriji abasebenza kubushushu obuphantsi.

I-14MnNb ineepropati ezifanayo kwintsimbi ye-18nb kwaye isetyenziselwa kakhulu kwiinqanawa kunye nezinye iindawo zesakhiwo ezinokushisa okusebenzayo kwe-20-450 ℃

I-16Mn ineepropati ezilungileyo ezibanzi zoomatshini, ukusebenza kobushushu obuphantsi, ukusebenza kwesitampu esibandayo, ukusebenza kwe-welding kunye nokusebenza kakuhle. Isetyenziswa ikakhulu kwimigodi, ezothutho, kwishishini lemichiza kunye nabanye oomatshini

Iimpawu ze-16mnre zifana nentsimbi ye-16Mn, ukuqina kwempembelelo kunye neempawu zokugoba ezibandayo zingcono kune-16Mn, kwaye injongo iyafana nentsimbi ye-16Mn.

Umbhobho wensimbi we-Q345D yenye yezinto zombhobho wensimbi.

Q345D umbhobho wentsimbi

I-Q345A, i-Q345B, i-Q345C, i-Q345D kunye ne-Q345E ngamabakala asemgangathweni. Bayanda ukusuka ku-a ukuya ku-e, ikakhulu ngenxa yokumahluko kwiqondo lokushisa elibangelwa yimixholo eyahlukeneyo yezinto ezincinci ezifana ne-phosphorus kunye nesulfure, emele umahluko kwimpembelelo yobushushu kunye neempawu zomatshini zemibhobho yokwakheka kweekhemikhali.

Q345A, akukho mpembelelo; I-Q345B, i-20 ° impembelelo yeqondo lokushisa eliqhelekileyo; I-Q345C, impembelelo ye-0 degree; I-Q345D, yi-20 degree impembelelo; I-Q345E yi - impembelelo ye-40 degree. Kumaqondo obushushu eempembelelo ezahlukeneyo, amaxabiso eempembelelo nawo ahlukile.

Q amandla okuvelisa angaphantsi kwe-345mp, kwaye ibakala lomgangatho libonisa ukuba liqukethe izinto ezingcolileyo (ikhabhoni, i-manganese, i-silicon, isulfure kunye ne-phosphorus). Ngaba ubungakanani bokungcola (izinto) kwintsimbi. Kamva i-A, B, C kunye no-D, iyancipha umxholo wokungcola

I-Q345A iqulethe zombini i-phosphorus kunye nesulfure ngaphantsi okanye ilingana ne-0.045%

I-Q345B iqulethe zombini i-phosphorus kunye nesulfure ngaphantsi okanye ilingana ne-0.040%

I-Q345C iqulethe zombini i-phosphorus kunye nesulfure ngaphantsi okanye ilingana ne-0.035%

I-Q345D iqulethe zombini i-phosphorus kunye nesulfure ngaphantsi okanye ilingana ne-0.030%

I-Q345E iqulethe zombini i-phosphorus kunye nesulfure ngaphantsi okanye ilingana ne-0.025%

Ubuninzi be-phosphorus kunye ne-sulfure engcolileyo kwintsimbi, iyancipha ngakumbi ukuqina kwempembelelo

Q345A -

Q345B Akv hayi ngaphantsi kwe 34 ngo 20 ℃

Kwi-Q345C 0 ℃, i-Akv ayiyi kuba ngaphantsi kwe-34

Q345D - Akv hayi ngaphantsi kwe 34 ngo 20 ℃

Kwi-Q345E - 40 ℃, i-Akv ayikho ngaphantsi kwe-27

Isizathu sokugqibela kukuba ukunciphisa ukungcola kwe-P kunye ne-s kwintsimbi kukhuthaza ukuphuculwa kokuqina kwempembelelo kwiqondo lokushisa eliphantsi. Enye yikhemikhali ye-Q345 kwaye enye yimpawu zemishini 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..

Ukwakhiwa kweekhemikhali ze-Q345B umbhobho ongenamthungo:

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 kweekhemikhali ze-Q345A umbhobho ongenamthungo:

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.

Ukwakhiwa kweekhemikhali ze-Q345C umbhobho ongenamthungo:

C: 0.12-0.20 Si: 0.20-0.60 Mn:1.00-1.60 P:≤0.035 S:≤0.035 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 Al:≥0.015 V0:0.5 N0.0.0.

Ukwakhiwa kweekhemikhali ze-Q345E umbhobho ongenamthungo:

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..

Iipropati zoomatshini ze-Q345D umbhobho wentsimbi ongenamthungo:

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

Iipropati zoomatshini ze-Q345B umbhobho ongenamthungo: