Q345D otsika kutentha kugonjetsedwa ndi zitsulo chitoliro chitsimikizo khalidwe

Q345D low temperature resistant steel pipe quality assurance Featured Image

Kufotokozera Kwachidule:

Q345D ndi zinthu zachitsulo chitoliro. Q imayimira zokolola za nkhaniyi. Zotsatira za 345 zimatanthawuza mtengo wamtengo wapatali wa zinthu izi, zomwe zili pafupi ndi 345. Mtengo wa zokolola umachepa ndi kuwonjezeka kwa makulidwe a zinthu.

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Main makhalidwe a Q345D opanda zitsulo chitoliro

Zabwino zonse zamakina, kutsekemera, kuzizira komanso kutentha kumagwira ntchito komanso kukana dzimbiri, komanso kulimba kwa kutentha kochepa.

Q345D wopanda chitsulo chitoliro ntchito mankhwala chitoliro

Zombo, ma boiler, zotengera zokakamiza, akasinja osungira mafuta, milatho, zida zopangira magetsi, makina okweza ndi zoyendera ndi zida zina zomangika zokhala ndi katundu wambiri.

Kuyerekeza kwa chitoliro chachitsulo cha Q345D chosasinthika ndi muyezo wakale

18nb anapha zitsulo munali Nb, ndi katundu ofanana 14MnNb, makamaka ntchito cranes, blowers, makina mankhwala, etc.

09mncupti atmospheric corrosion resistant steel ili ndi kulimba kwamphamvu kwapang'onopang'ono, kukhazikika komanso kuzizira komanso kutentha. Amagwiritsidwa ntchito makamaka pamakina amitundu yonse m'malo achinyezi ndi mvula komanso malo owononga mpweya

12mnv otsika kutentha zitsulo ndi kutentha ntchito - 70 ℃ zimagwiritsa ntchito zigawo structural wa firiji makina ntchito kutentha otsika.

14MnNb ili ndi katundu wofanana ndi chitsulo cha 18nb ndipo imagwiritsidwa ntchito makamaka paziwiya ndi zigawo zina zomangira ndi kutentha kwa ntchito - 20-450 ℃

16Mn ili ndi zida zabwino zamakina, kutentha pang'ono, kupondaponda kozizira, ntchito zowotcherera komanso machinability. Amagwiritsidwa ntchito makamaka mumigodi, zoyendera, makampani opanga mankhwala ndi makina ena

Makhalidwe a 16mnre ndi ofanana ndi chitsulo cha 16Mn, kulimba kwamphamvu komanso kupindika kozizira kuli bwino kuposa 16Mn, ndipo cholinga chake ndi chofanana ndi chitsulo cha 16Mn.

Q345D zitsulo chitoliro ndi chimodzi mwa zipangizo za chitoliro zitsulo.

Chitoliro chachitsulo cha Q345D

Q345A, Q345B, Q345C, Q345D ndi Q345E ndi magiredi apamwamba. Amawonjezeka kuchokera ku e mpaka e, makamaka chifukwa cha kusiyana kwa kutentha komwe kumayambitsidwa ndi zinthu zosiyanasiyana zazing'ono monga phosphorous ndi sulfure, zomwe zimayimira kusiyana kwa kutentha ndi makina a chitoliro cha mankhwala.

Q345A, palibe zotsatira; Q345B, 20 ° kutentha kwachilengedwe; Q345C, 0 digiri mphamvu; Q345D, ndi - 20 digiri zotsatira; Q345E ndi - 40 digiri mphamvu. Paziwopsezo zosiyanasiyana, zomwe zimakhudzidwa zimasiyananso.

Q mphamvu zokolola sizotsika kuposa 345mp, ndipo kalasi yabwino ikuwonetsa kuti ili ndi zinthu zosadetsedwa (carbon, manganese, silicon, sulfure ndi phosphorous). Ndi kuchuluka kwa zonyansa (zinthu) muzitsulo. Pambuyo pake A, B, C ndi D, m'pamenenso zonyansazo zimachepa

Q345A ili ndi phosphorous ndi sulfure yocheperapo kapena yofanana ndi 0.045%

Q345B ili ndi phosphorous ndi sulfure zocheperapo kapena zofanana ndi 0.040%

Q345C ili ndi phosphorous ndi sulfure yocheperapo kapena yofanana ndi 0.035%

Q345D ili ndi phosphorous ndi sulfure zocheperapo kapena zofanana ndi 0.030%

Q345E ili ndi phosphorous ndi sulfure zocheperapo kapena zofanana ndi 0.025%

Kuchuluka kwa phosphorous ndi sulfure zonyansa muzitsulo, kumapangitsanso kulimba kwamphamvu

Q345A -

Q345B Akv osachepera 34 pa 20 ℃

Pa Q345C 0 ℃, Akv siyenera kuchepera 34

Q345D - Akv osachepera 34 pa 20 ℃

Pa Q345E - 40 ℃, Akv si osachepera 27

Chifukwa chomaliza ndi chakuti kuchepa kwa P ndi s zonyansa muzitsulo kumalimbikitsa kusintha kwa mphamvu yamphamvu pa kutentha kochepa. Imodzi ndi mankhwala a Q345 ndipo ina ndi makina a 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.1.050-02-0.

Chemical zikuchokera Q345B chitoliro opanda msokonezo:

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.

Ma Chemical a Q345A chitoliro chopanda msoko:

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.

Chemical zikuchokera Q345C opanda msoko chitoliro:

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.

Chemical zikuchokera Q345E chitoliro msokonezo:

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.1.050-02-0.

Makina a Q345D chitoliro chopanda chitsulo:

Kulimba kwamphamvu: 490-675 mphamvu zokolola: ≥ 345 elongation: ≥22

Makina a Q345B chitoliro chopanda msoko: