Dab tsi yog 304 stainless hlau raj?
304 stainless hlau raj yog austenitic chromium-nickel alloy, ntau yam thiab muaj kev tiv thaiv corrosion siab, muaj txiaj ntsig zoo rau nws cov kav ntev, lub zog thiab yooj yim ntawm kev tsim khoom. Paub tias yog "18-8" stainless hlau (18% chromium, 8% nickel), nws yog siv rau hauv kev ua zaub mov, khoom siv kho mob, cov khoom siv thiab cov khoom siv tshuaj.
Qhov sib txawv ntawm 304 thiab 316 stainless hlau kav
Qhov sib txawv tseem ceeb yog tias 316 muaj 2-3% molybdenum, muab kev tiv thaiv corrosion ntau dua, tshwj xeeb tshaj yog tiv thaiv chlorides thiab marine ib puag ncig, piv rau 304. 304 yog kev lag luam ntau dua rau kev siv dav dav, thaum 316 yog qhov ruaj khov dua hauv cov tshuaj lom neeg lossis cov kua qaub.
Rockwell hardness ntawm 304 stainless hlau yeeb nkab yog dab tsi?
Lub 304 stainless hlau raj feem ntau muaj hardnessRockwell IB (HRB)nruab nrab70 thiab 92 HRBnyob rau hauv lub xeev annealed, nrog tus nqi siab tshaj nyob ib ncig ntawm90–92 IB, ua rau nws zoo tagnrho rau kev khoov thiab sib sau. Nws tseem hu ua AISI 304, 18-8 steel lossis UNS S30400; Nws cov pa roj carbon tsawg yog 304L.
Brinell Hardness ntawm 304 Stainless hlau yeeb nkab
Brinell hardness ntawm annealed 304 yeeb nkab feem ntau yog nruab nrab ntawm123–201 IB., nrog ib tug raug industrial ntau yam ntawm170–201 IB. Raws li cov qauv, nws qhov siab tshaj plaws hardness tuaj yeem ncav cuag201-215 H.B., ib., combining zoo corrosion kuj, mechanical resistance thiab machinability.
Vickers Hardness ntawm 304 Stainless hlau yeeb nkab
Vickers hardness ntawm 304 yeeb nkab feem ntau nyob nruab nrab ntawm129 HV thiab 210 HV. Hauv lub xeev annealed nws qis dua (kwv yees . 129 HV), thaum ua haujlwm txias 304 tuaj yeem ncav cuag tus nqi siab dua.
Vim li cas lub hardness tsawg hauv lub xeev annealed?
Annealing (ua cua sov rau 1040℃- 1100℃tom qab txias txias) dissolves cov carbides nyob rau hauv lub austenitic matrix thiab tshem tawm cov kev ntxhov siab nyob rau hauv cov txheej txheem tsim.
Hardness ntawm Annealed 304 Stainless Hlau Tube
| hardness nplai | Txheem txwv (ASTM A312 / A240) | Yam khoom muaj nqis | Nco tseg |
|---|---|---|---|
| Rockwell IB (HRB) | Tsawg dua lossis sib npaug rau 92 HRB | 80-88 IB | Feem ntau qhov ntsuas rau 304 raj |
| Brinell (HWB) | Tsawg dua lossis sib npaug rau 201 HBW | 160-185 HWB | Siv rau cov kav dej tuab |
| Vickers (HV) | Tsawg dua lossis sib npaug li 210 HV | 170-200 HV | Siv rau precision los yog nyias phab ntsa tubing |
| Rockwell C (HRC) | Tsis siv tau | < 20 HRC | 304 yog mos heev rau HRC hauv lub xeev annealed |
Hardness raws li cov qauv sib txawv
ASTM A 312 Cov Lus Qhia Tshwj Xeeb: Qhia qhov siab tshaj plaws hardness ntawm192 HWB or 90 HB; kev txwv ntawm92 PABrau 304.
TS EN 10088-2: Qhov sib npaug European (1.4301) teeb tsa qhov siab dua me ntsis Brinell txwv:Tsawg dua lossis sib npaug rau 215 HBW.
Hardness nyob rau hauv ntau yam kev siv
ASTM A312 TP304 muaj tube: Tshuaj annealed, tswj hardness nyob rau hauvHBW Tsawg dua lossis sib npaug rau 192, guaranteeing toughness, corrosion kuj thiab yooj yim ntawm dabtsi yog khoov, flaring thiab vuam.
ASTM A554 TP304 Welded hniav yeeb nkab: Hardness nruab nrab85–95 IB, kom ntseeg tau cov qauv rigidity thiab zoo nto tiav (daim iav polished, txhuam).
ASTM A312 TP304 Precision Capillary Tube: Retains hardening vim kev ua haujlwm txias, muaj peev xwm kov yeej300 HV.
Yog tias koj muaj cov cai tshwj xeeb rau 304 raj hauv koj qhov project, koj tuaj yeem txais tos koj xaj. GNEE muaj cov khoom lag luam loj muaj nyob rau hauv seamless thiab welded versions, nrog rau kev hloov kho. Rau cov ncauj lus kom ntxaws cov ntaub ntawv muaj pes tsawg leeg lossis cov qauv dawb, thov hu rau peb lub Hoobkas. Peb muab cov nqi sib tw thiab kev pabcuam tshaj lij.
Specifications ntawm 1.4301 Stainless Hlau Tube
| Yam khoom | Specification |
|---|---|
| Cov txheej txheem tsim khoom | Seamless / Welded / Cold drawn / Cold dov |
| Sab nraud txoj kab uas hla (OD) | 6mm - 1219mm (1/8 "- 48") |
| Phab ntsa thickness (WT) | 0.5 hli - 100 hli (SCH 5S, 10S, 40S, 80S, 160, XXS) |
| Ntev | Ib qho random (5.8m / 6m), ob chav random lossis customized (txog 18m) |
| Nto tiav | No.1 (Pickling / Industrial) |
| Mechanical polishing (180 #, 240 #, 320 #, 400 #, 600 #) | |
| Daim iav tiav (8K) | |
| Txhuam / Plaub Kab (HL) |
GNEE Support Services
Material Test Certificate (MTC): Ua raws li EN 10204 3.1, nrog cov ntaub ntawv tiag tiag ntawm kev sib xyaw thiab cov khoom siv tshuab.
Hydrostatic xeem: 100% kev ntsuas siab kom nruj.
Eddy tam sim no / ultrasonic kuaj (ET / UT): Kev txheeb xyuas qhov tsis xws luag hauv cov raj seamless.
PMI test: Nyob rau hauv situ spectrometric txheeb xyuas qhov muaj pes tsawg leeg.
Kev tshuaj xyuas thib peb: Peb lees txais kev tshuaj xyuas los ntawm SGS, BV, TÜV thiab lwm lub koom haum tso cai.
