Yog tias koj xav paub ntau ntxiv, xws li kev hais nqe, cov khoom lag luam, cov kev daws teeb meem, thiab lwm yam, pdaim ntawv xauj tsevtiv tauj peb hauv online.
Tianjin Sanon Steel Pipe Co., Ltd. yog tus muag khoom. Peb lub Hoobkas Tshuag nyob hauv Cangzhou City, Hebei Xeev. Peb cov khoom tseem ceeb yogcov kav dej boiler, thiab cov ntaub ntawv sawv cev yogASTM A335 P5/P11/P91/P92,ASME SA-106/SA-106MGR.B,GB/T 3087-200810 # / 20 #. Cov ntaub ntawv sawv cev ntawm cov kav dej yogAPI 5L,API 5CT, cov ntaub ntawv sawv cev ntawm cov kav dej tawg roj avGB/T 9948yog 15MoG/12CrMoVGGB/T 6479-2013 sawv cev rau cov khoom siv 10#/20#, cov raj xa cua sov SA179/SA210/SA192, thiab lwm yam., cov raj xa khoom siv kho tshuab GB/T 8162 sawv cev rau cov khoom siv 10#/20#/Q345/42CrMo, EN10210 sawv cev rau cov khoom siv S355JOH/S355J2H, cov raj xa roj GB1 8248, sawv cev rau cov khoom siv 34CrMo4/30CrMo.
1. Kev Taw Qhia
ASTM A333 Qib 6yog cov yeeb nkab hlau carbon uas siv dav dav, nrog rau qhov kub tsawg kawg nkaus ntawm -45 ° C. Vim nws qhov kev tawv zoo heev thiab kev siv nyiaj tsawg, nws tau siv dav hauv cov nroj tsuag petrochemical, cov khoom siv cryogenic, thiab cov tshuab xa roj liquefied.
Hauv kev yuav khoom siv engineering,A333 Gr.6 kav dejFeem ntau raug muab faib ua ob qho xwm txheej: "Kev Pabcuam Qab Zib" thiab "Kev Pabcuam Qab Zib" (tus qauv / ib txwm muaj). Txawm hais tias ob hom ua tau raws li cov tshuaj lom neeg yooj yim thiab cov khoom siv kho tshuab uas xav tau ntawm ASTM A333 tus qauv, lawv txawv ntawm lawv qhov kev tiv thaiv rau hydrogen sulfide (H₂S) corrosion - qhov sib txawv uas txiav txim siab lawv cov xwm txheej thov sib txawv.
2. Qhov Txawv Tseem Ceeb Ntawm Kev Pabcuam Qab Zib Thiab Qab Zib
2.1 Cov Cai ntawm Kev Pabcuam
Kev Pab Qab Zib (Tsis yog qaub): Haum rau cov chaw uas tsis muaj H₂S lossis nrog qhov siab H₂S qis heev. Cov kev xav txog kev tsim qauv tseem ceeb yog qhov ruaj khov thaum kub tsawg thiab muaj peev xwm dais siab ib txwm muaj.
Kev Pabcuam Qab Zib: Tsim tshwj xeeb rau cov chaw uas muaj H₂S ntub, qhov twg cov khoom siv yuav tsum tiv taus ob qho tib si qhov kub qis thiab H₂S xeb tib lub sijhawm. Cov khoom siv pabcuam qab zib kuj tseem siv tau rau cov ntawv thov qab zib.
2.2 Kev Tswj Xyuas Cov Tshuaj Lom Zem
Txawm hais tias qhov kev qhia tshwj xeeb ASTM A333 Gr.6 teeb tsa cov kev txwv rau C, Mn, P, S, thiab lwm yam ntsiab lus, cov kav dej kev pabcuam qaub yuav tsum tau tswj hwm tshuaj lom neeg nruj dua:
| Cov Qauv | Tus qauv A333 Gr.6 | Kev Pabcuam Qab Zib A333 Qib 6 |
| Sulfur (S) | ≤ 0.035% | Tswj nruj me ntsis, feem ntau ≤ 0.015% |
| Phosphorus (P) | ≤ 0.035% | Tswj nruj me ntsis, feem ntau ≤ 0.025% |
| Cov pa roj carbon sib npaug (CE) | Tsis tas yuav tsum ua | Txwv nruj nreem (piv txwv li, ≤ 0.43%) kom tiv thaiv kev tawv dhau |
Los ntawm kev txo cov khoom tsis huv xws li S thiab P, thiab txwv cov pa roj carbon sib npaug, cov kav dej qab zib txo qhov kev cuam tshuam rau sulfide kev ntxhov siab corrosion cracking (SSC) los ntawm cov tshuaj lom neeg sib xyaw.
2.3 Cov Kev Cai Rau Kev Kho Mob Hardness thiab Kev Kho Mob Kub
Kev tswj qhov nyuaj yog ib qho tseem ceeb tshaj plaws ntawm qhov sib txawv ntawm kev pabcuam qaub thiab qab zib. Kev pabcuam qaub A333 Gr.6 xav tau qhov nyuaj siab tshaj plaws ntawm 22 HRC (Rockwell C) lossis 248 HBW. Qhov no yog vim tias cov qauv microstructures siab heev yog qhov yooj yim rau hydrogen-induced embrittlement thiab kev ntxhov siab corrosion cracking hauv H₂S ib puag ncig.
Hais txog kev kho cua sov, cov kav dej qab zib feem ntau xav tau cov txheej txheem Normalized lossis Quenched & Tempered (Q&T) kom ua tiav cov qauv me me uas ua rau SSC tsis kam. Cov kav dej qab zib (qab zib) muaj cov kev xav tau kev kho cua sov uas yooj yim dua.
2.4 Cov Kev Cai Ntxiv rau Kev Ntsuas
Cov kav dej haus cawv yuav tsum tau ua raws li NACE tus qauv kev ua raws li (piv txwv li, NACE MR0175 / ISO 15156), feem ntau suav nrog:
Kev Ntsuas SSC (Sulfide Stress Cracking, NACE TM0177)
Kev Ntsuas HIC (Kev Sib Tsoo Uas Ua Rau Hydrogen Ua Rau, NACE TM0284)
Cov kav dej kev pabcuam txheem (qab zib) feem ntau tsuas yog yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm qhov kub qis ntawm ASTM A333 (-46 ° C, qhov nruab nrab tsawg kawg nkaus lub zog cuam tshuam ≥ 20J) nrog rau kev txheeb xyuas cov khoom siv kho tshuab niaj hnub.
3. Cov Lus Qhia Txog Kev Xaiv thiab Cov Lus Qhia
| Aspect | Tus qauv A333 Gr.6 | Kev Pabcuam Qab Zib A333 Qib 6 |
| Kev Pabcuam Nruab Nrab | Tsis muaj H₂S los yog H₂S tsis tseem ceeb | Cov khoom noj uas muaj H₂S ntub dej |
| Kev Txwv Qhov Nyuaj | Tsis muaj kev txwv tshwj xeeb | ≤ 22 HRC / 248 HBW |
| Kev Kho Mob Kub | Kev ua tiav ib txwm muaj | Normalized lossis Q&T; cov qauv me me sib xws |
| Kev Ntsuas Ntxiv | Kev ntsuam xyuas qhov cuam tshuam qis-kub | Kev kuaj SSC + HIC raws li cov qauv NACE |
| Kev Ua Raws Cai ntawm NACE | Tsis tas yuav tsum muaj | Ua raws li NACE MR0175 |
Cov Lus Qhia Xaiv: Thaum lub sijhawm tsim qauv, nws yog ib qho tseem ceeb kom txiav txim siab seb H₂S puas muaj nyob rau hauv qhov chaw pabcuam. Yog tias muaj cov xwm txheej H₂S ntub dej, cov lus qhia txog kev yuav khoom yuav tsum hais meej meej tias "A333 Gr.6 rau Kev Pabcuam Qab Zib, ua raws li NACE MR0175 / ISO 15156," nrog rau cov kev cai tshwj xeeb rau qhov nyuaj, cov pa roj carbon sib npaug, kev kho cua sov, thiab kev sim ntxiv. Cov kav dej txheem A333 Gr.6 yuav tsum tsis txhob siv rau hauv cov xov xwm qab zib, vim qhov no yuav ua rau muaj kev puas tsuaj loj heev ntawm kev ntxhov siab corrosion cracking.
Lub sijhawm tshaj tawm: Lub Xya Hli-02-2026
