GB / T8163 Seamless steel raj
Q345B carbon steel round rajyog ib qho nruab nrab-tsawg alloy steel feem ntau siv hauv kev tsim kho, txuas hniav, nkoj, roj av tso tsheb hlau luam, cov khoom siv petrochemical, tshuab tsim, tsheb tsim, thee mining machinery thiab lwm yam.
Q345B txias drawn steel kav yog ib yam khoom siv hlau, uas tuaj yeem muab faib ua Q345A, Q345B, Q345C, Q345D thiab Q345E raws li qib. Qhov lawv sawv cev yog qhov feem ntau yog qhov cuam tshuam qhov kub thiab txias sib txawv. Ntawm lawv, Q345A qib tsis muaj kev cuam tshuam, Q345B qib muaj 20 degree qhov kub thiab txias, Q345C qib muaj 0 degree cuam tshuam, Q345D qib muaj -20 degree cuam tshuam, thiab Q345E theem muaj {{14} } degree cuam tshuam. cuam tshuam.
Q345B seamless steel yeeb nkab yog lub zog siab seamless steel yeeb nkab ua los ntawm Q345B steel. Q345B seamless kua steel yeeb nkab siv cov khoom tsim nyog alloy thiab muaj kev tiv thaiv corrosion zoo heev, tshwj xeeb tshaj yog nyob rau hauv corrosive media xws li acids thiab alkalis. Lub zog tensile ntawm Q345B steel yeeb nkab yog siab tshaj 490MPa. Lub zog ntawm Q345B carbon steel yeeb nkab kuj yog siab heev thiab tuaj yeem siv rau hauv kev lag luam muaj zog.
GB/T8163 Q345B kua seamless yeeb nkab Chemical Composition thiab Mechanical Property
|
Qib |
C |
Si |
Mn |
P Tsawg dua lossis sib npaug |
S Tsawg dua los yog sib npaug |
Ni tsawg dua los yog sib npaug |
Cu Less tshaj los yog sib npaug |
Cr Tsawg dua lossis sib npaug |
|
Q345B |
Tsawg dua lossis sib npaug rau 0.20 |
Tsawg dua lossis sib npaug rau 0.55 |
1.00-1.60 |
0.040 |
0.040 |
0.30 |
0.30 |
0.30 |
| Qib | Yield zog (Mpa) | Tensile zog (MPa) | Elongation (%) | |
| Q345B | Tsawg dua los yog sib npaug li 16 hli | ＞16 | 490-665 | Ntau dua lossis sib npaug li 21 |
| Ntau dua lossis sib npaug rau 325 | Ntau dua lossis sib npaug rau 315 | |||
GB/T8163 Q345B kua seamless yeeb nkab
Thaum tsim seamless Q345B steel kav
Muaj ob peb yam tseem ceeb uas yuav tsum nco ntsoov. Ua ntej tshaj plaws, cov qauv tsis sib xws feem ntau tshwm sim los ntawm lub raj khoob. Qhov thib ob, qhov ntsuas kub ntawm cov khoom tiav yuav tsum tsim nyog, qhov ntsuas kub ntawm qhov ntsuas kub yuav tsum nyob nruab nrab ntawm 1230-1250 degree, thiab lub sijhawm cua sov feem ntau yog ntau tshaj 60 feeb. Thaum kawg, qhov ua rau tawg kuj xav tau kev saib xyuas. Kev ntsuam xyuas tau ua pov thawj tias sab hauv ntawm lub raj dawb paug (round steel) muaj ntau cov kab nrib pleb, suav nrog, cov hnab ntim huab cua, thiab lwm yam. Kev hloov tsis raug ntawm qhov perforation kub thiab txheej txheem yuav ua rau cov ntaub so ntswg sab hauv ntawm lub raj capillary tsim kua muag.
ntxiv
1) Muab MTC (mill report) nrog cov khoom
2) Txhawb nqa kev soj ntsuam zoo los ntawm tus neeg sawv cev thib peb hauv peb lub hoobkas
3) Muab kev pabcuam zoo tom qab muag los daws txhua yam teeb meem
Gnee Factory ib puag ncig
Cim npe nrov: gb/t8163 q345b kua seamless yeeb nkab, Tuam Tshoj gb/t8163 q345b kua seamless yeeb nkab manufacturers, lwm tus neeg, Hoobkas
