I-ASTM A335 P92 (ASME SA335 P92) ngumbhobho wentsimbi ye-ferritic alloy engenamthungo eyenzelwe inkonzo yobushushu obuphezulu.Isikhundla se-UNS yi-K92460.
I-P92 yintsimbi ye-alloy enganyangekiyo kubushushu ene-chromium martensitic ephezulu equlethe i-8.50–9.50% ye-chromium kwaye ixutywe ne-Mo, W, V, kunye ne-Nb, enika amandla aphezulu okuqhekeka kobushushu obuphezulu, ukumelana ne-oxidation, kunye nokumelana nokudinwa kubushushu.
Isetyenziswa kakhulu kwimigca ephambili yomphunga, kwimigca yomphunga ephinda ifudumale, kwiityhubhu ze-superheater kunye ne-reheater zeebhoyila zamandla ezibaluleke kakhulu nezibaluleke kakhulu, kunye nakwiipayipi zenkqubo zoxinzelelo oluphezulu kunye nezixhobo zokugcina uxinzelelo olubalulekileyo kwiindawo ze-petrochemical kunye ne-refine.
I-Botop Steel ngumthengisi weepayipi zentsimbi ye-alloy steel onguchwephesha nothembekileyo eTshayina, onokukwazi ukubonelela ngokukhawuleza iiprojekthi zakho ngeendidi ezahlukeneyo zeepayipi zentsimbi ye-alloy, kubandakanyaP5 (K41545), I-P9 (K90941), P11 (K11597), P12 (K11562), P22 (K21590)kunyeI-P91 (K90901).
Iimveliso zethu zikumgangatho othembekileyo, zixabisa ngokukhuphisana, kwaye zixhasa ukuhlolwa ngumntu wesithathu.
| Ukwenziwa kweeKhemikhali, % | |||
| C | 0.07 ~ 0.13 | N | 0.03 ~ 0.07 |
| Mn | 0.30 ~ 0.60 | Ni | Ubuninzi obuyi-0.40 |
| P | Ubuninzi be-0.020 | Al | Ubuninzi obuyi-0.02 |
| S | Ubuninzi be-0.010 | Nb | 0.04 ~ 0.09 |
| Si | Ubuninzi obuyi-0.50 | W | 1.5 ~ 2.0 |
| Cr | 8.50 ~ 9.50 | B | 0.001 ~ 0.006 |
| Mo | 0.30 ~ 0.60 | Ti | Ubuninzi obuyi-0.01 |
| V | 0.15 ~ 0.25 | Zr | Ubuninzi obuyi-0.01 |
Amagama athi Nb (Niobium) kunye neCb (Columbium) ngamagama ahlukeneyo ento enye.
Iipropati zokuThatha
| Ibanga | Iipropati zokuThatha | ||
| Tensile strength | Unikeze Amandla | Ukwandiswa | |
| I-ASTM A335 P92 | 90 ksi [620 MPa] min | 64 ksi [440 MPa] min | 20% imizuzu (Ixesha elide) |
I-ASTM A335 icacisa amaxabiso aphantsi okwandiswa kodonga aqikelelweyo e-P92 kwi-1/32 intshi nganye [0.8 mm] yokwehla kobukhulu bodonga.
| Ubukhulu bodonga | Ubude be-P92 kwi-2 intshi okanye i-50 mm | |
| in | mm | I-Longitudinal |
| 0.312 | 8 | 20% imizuzu |
| 0.281 | 7.2 | 19% imizuzu |
| 0.250 | 6.4 | 18% imizuzu |
| 0.219 | 5.6 | 17% imizuzu |
| 0.188 | 4.8 | 16% imizuzu |
| 0.156 | 4 | 15% imizuzu |
| 0.125 | 3.2 | 14% imizuzu |
| 0.094 | 2.4 | 13% imizuzu |
| 0.062 | 1.6 | 12% imizuzu |
Apho ubukhulu bodonga buphakathi kwamaxabiso amabini angentla, ixabiso elincinci lokwandiswa limiselwa yile fomyula ilandelayo:
E = 32t + 10.00 [E = 1.25t + 10.00]
Apho:
E = ubude obuziisentimitha ezi-2 okanye ezingama-50 mm, %, kunye
t = ubukhulu bokwenyani beesampuli, kwi. [mm].
Iimfuneko zoBulukhuni
| Ibanga | Iipropati zokuThatha | ||
| UBrinell | uVickers | uRockwell | |
| I-ASTM A335 P92 | Ubuninzi be-250 HBW | Ubuninzi be-HV obuyi-265 | Ubuninzi be-HRC obuyi-25 |
Kwimibhobho enobukhulu bodonga obuyi-0.200 in. [5.1 mm] okanye ngaphezulu, kufuneka kusetyenziswe uvavanyo lokuqina lweBrinell okanye lweRockwell.
Uvavanyo lokuqina kweVickers kufuneka lwenziwe ngokuhambelana neTest Method E92.
Uvavanyo lokuTyatya
Uvavanyo luza kwenziwa kwiisampuli ezithathwe kwelinye icala lombhobho ngokuhambelana neemfuno zeCandelo 20 le-ASTM A999.
Uvavanyo lwe-Bend
Kwipayipi enobubanzi obungaphezulu kwe-NPS 25 kwaye enomlinganiselo wobubanzi bodonga obuyi-7.0 okanye ngaphantsi, kufuneka kuhlolwe ukugoba endaweni yovavanyo lokuthamba.
Iisampulu zovavanyo lokugoba mazigotywe kubushushu begumbi ukuya kuthi ga kwi-180° ngaphandle kokuqhekeka ngaphandle kwenxalenye egobileyo.
Umenzi kunye neMeko
Imibhobho yentsimbi ye-ASTM A335 P92 mayiyenziwe yiinkqubo engenamthungokwaye kufuneka igqitywe ngokushisa okanye itsalwe kubanda, njengoko kuchaziwe.
Umbhobho ongenamthungo ngumbhobho ongenazo ii-welds. Kwiindawo ezinobushushu obuphezulu kunye noxinzelelo oluphezulu, ii-welds ezingenamthungo zinokumelana noxinzelelo lwangaphakathi oluphezulu kunye namaqondo obushushu, zinike ulungelelwaniso olungcono lwesakhiwo kunye neempawu zoomatshini, kwaye ziphephe iziphene ezinokubakho kwi-weld seams.
Unyango lobushushu
Umbhobho we-P92 kufuneka uphinde ufudumale ukuze unyangwe ngobushushu kwaye uphathwe ngokuhambelana neemfuno.
| Ibanga | I-ASTM A335 P92 |
| Uhlobo lokunyanga ubushushu | ukwenza izinto zibe zesiqhelo kunye nobushushu |
| Ukutshintsha Ubushushu | 1900 ~ 1975 ℉ [1040 ~ 1080 ℃] |
| Ubushushu bokuTshisa | 1350 ~ 1470 ℉ [730 ~ 800 ℃] |
Ezinye zeentsimbi ze-ferritic ezigqunywe yile nkcazelo ziya kuqina ukuba zipholiswe ngokukhawuleza ukusuka kubushushu obuphezulu. Ezinye ziya kuqina emoyeni, oko kukuthi, ziqina ukuya kwinqanaba elingafunekiyo xa zipholiswe emoyeni ngenxa yobushushu obuphezulu.
Ngoko ke, imisebenzi equka ukufudumeza ezo ntsimbi ngaphezu kobushushu bazo obubalulekileyo, njengokuwelda, ukuflanga, kunye nokugoba okushushu, kufuneka ilandelwe lunyango olufanelekileyo lobushushu.
| I-ASME | I-ASTM | EN | GB |
| I-ASME SA335 P92 | I-ASTM A213 T92 | EN 10216-2 X10CrWMoVNb9-2 | GB/T 5310 10Cr9MoW2VNbBN |
Izixhobo:imibhobho yentsimbi engenamthungo ye-ASTM A335 P92 kunye nezixhobo;
Ubungakanani:1/8" ukuya kuma-24", okanye wenze ngokwezifiso ngokweemfuno zakho;
Ubude:Ubude obungacwangciswanga okanye obunqunyiweyo ngokwe-odolo;
Ukupakisha:Umbala omnyama, iziphelo ezibengezelayo, izikhuseli zemibhobho, iikreyithi zomthi, njl.njl.
Inkxaso:Isatifikethi se-IBR, ukuhlolwa kwe-TPI, i-MTC, ukusika, ukucubungula, kunye nokwenza ngokwezifiso;
I-MOQ:1 m;
Immimiselo yokuhlawula:I-T/T okanye i-L/C;
Ixabiso:Nxibelelana nathi ukuze ufumane amaxabiso amva nje eepayipi zentsimbi zeP92.
