Malingaliro a kampani Shandong Weichuan Metal Prodducts Co., Ltd.

Q345C otsika kutentha zitsulo chitoliro chenicheni malo

Kufotokozera Kwachidule:

Q345C chitoliro chosasunthika chachitsulo chikufanizidwa ndi Q345A ndi B. Mayeso otsika otsika kutentha amakhala ndi kutentha kochepa komanso ntchito yabwino. Chiŵerengero cha P ndi s chokhala ndi zinthu zoopsa ku Q345A, Kusiyana pakati pa Q345A, Q345B ndi Q345C


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Mechanical performance index (%)

Grade khoma makulidwe mm elongation δ 5 ≥%% zokolola mphamvu δ S (MPA ≥) mayeso kutentha ℃

Q345A ≤ 16 21 345 sikufunika

Q345B ≤16 21 345 20

Q345C 16-35 22 ≥325 0

Q345C low temperature seamless steel pipe manufacturer's warranty

Chemical zikuchokera

Kalasi C Si Mn PSV NB Al Ti

Q345A ≤0.20 ≤0.55 ≤1.70 ≤0.045 ≤0.045 0.02-0.15 0.015-0.060 0.02-0.20

Q345B ≤0.20 ≤0.55 ≤1.70 ≤0.040 ≤0.040 0.02-0.15 0.015-0.060 0.02-0.20

Q345C ≤0.20 ≤0.55 ≤1.70 ≤0.035 ≤0.035 0.02-0.15 0.015-0.060 ≥0.015 0.02-0.20

Makamaka chifukwa cha zinthu zosiyanasiyana za carbon ndi manganese:

Q235-A

Mpweya wa carbon C: 0,14 ~ 0,22; Mn: 0,30 ~ 0,65;

Q235-B

Mpweya wa carbon C: 0,12 ~ 0.20; Mn: 0,30 ~ 0,70;

Imagwiritsidwa ntchito pazigawo za carburized kapena cyanide zokhala ndi zofunikira zochepa zamphamvu, monga kukoka ndodo, ndodo yolumikizira, mbedza, bawuti, shaft ndi weldment.

Payenera kukhala zoletsa kutentha!

Makamaka Q345E. Makumi a madigiri pansi pa ziro.

Kuphatikiza apo, poyerekeza ndi muyezo wakale, chofunikira kwambiri chodziwikiratu cha muyezo watsopano ndikusintha zomwe zili mu Mn muzitsulo kuchokera ku 1.0-1.60 mpaka ≤ 1.70, ndikuchotsa malire amtengo wapatali a ≥ 1.0.

Q345C zitsulo chitoliro ndi chimodzi mwa zipangizo za chitoliro zitsulo.

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

Makina enieni a Q345C

C≤0.2%,Mn 1.0-1.6%,

Ndi ≤0.55%,

S ≤0.35%,

P ≤0.35%,

V 0.02-0.15%,

Nb 0.015-0.06%,

Ti 0.02-0.2%,

AL ≥0.015%

The makina katundu ndi:

Zokolola mphamvu: ≥ 345mpa (kukhuthala pansi 16mm)

Kuthamanga mphamvu: 470-630mpa

kukula: 22%

Mphamvu zamphamvu: ≥ 34j (kutentha kwa mayeso 0 °)

180 ° kuyesa kuyesa:

D = 2A (kukhuthala pansi pa 16mm)

The makina katundu ndi

Zokolola mphamvu: ≥ 345mpa (kukhuthala pansi 16mm)

Kuthamanga mphamvu: 470-630mpa

kukula: 22%

Mphamvu zamphamvu: ≥ 34j (kutentha kwa mayeso 0 °)

180 ° kuyesa kuyesa:

D = 2A (kukhuthala pansi pa 16mm)


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