304/304L Umbhobho weTube yeNtsimbi yeNtsimbi
Inkcazo
I-ASTM A312 ASTM A269 ASME SA 213 / ASTM A213 TP304, EN 10216-5 1.4301 insimbi engenasici yinguqu ye-18% ye-chromium - 8% ye-nickel austeniticstainless steel tube, eyona nto ixhaphakileyo kunye neyona nto isetyenziswa rhoqo kwintsapho ye-alloy stainless.Le ntsimbi engenasiphene ithathelwa ingqalelo kwiintlobo ngeentlobo zezicelo ekuxhathiseni umhlwa okulungileyo, ukwenziwa lula, ukumila okugqwesileyo, kunye nokomelela okuphezulu kunye nobunzima obuphantsi.
I-304 iStainless Steel ngumgangatho "18/8" wensimbi engenasici;iyona nto ixhaphakileyo kwaye isetyenziswa kakhulu insimbi engenasici, ekhoyo kuluhlu olubanzi lweemveliso, iifom kunye nokugqiba kunanoma iyiphi enye.Ineempawu ezibalaseleyo zokubumba kunye ne-welding.Ulwakhiwo olulungeleleneyo lwe-austenitic lweBanga lama-304 lwenza ukuba lutsalwe ngokunzulu ngokuqatha ngaphandle kokuqhotyoshelwa okuphakathi, okuthe lenze eli bakala libe longamele ukwenziwa kwenxalenye yentsimbi etsaliweyo etsaliweyo efana nesinki, i-hollow-ware kunye nepani.Kwesi sicelo kuqhelekile ukusebenzisa iintlobo ezizodwa ze-"304DDQ" (Umgangatho woMzobo oNzulu).
IBanga lama-304 liyaqhawuka ngokukhawuleza okanye libe ngamacandelo ahlukeneyo ukuze lisetyenziswe kwimizi-mveliso, kwizakhiwo, nakwimimandla yezothutho.IBanga lama-304 nalo lineempawu zokuwelda ezibalaseleyo.I-post-weld annealing ayifuni xa udibanisa amacandelo amancinci.
IBakala 304L, i-low carbon version ye-304, ayifuni i-post-weld annealing kwaye isetyenziswa kakhulu kwi-heavygauge component (ngaphezu kwe-6mm).IBanga le-304H elinomxholo walo ophezulu wekhabhoni lifumana ukusetyenziswa kubushushu obuphezulu.Ulwakhiwo lwe-austenitic lukwanika la mabanga ukuqina okugqwesileyo, ukuya kuthi ga kwi-cryogenictemperature.
| IBanga | IBanga | Icandelo leMichiza % | ||||||||||
| C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | Okunye | ||
| 304 | 1.4301 | ≤0.08 | 18.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
| 304L | 1.4307 | ≤0.030 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
| 304H | 1.4948 | 0.04-0.10 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | - |
