Product Overview
Lub pob txha taub hau yog ib feem me me nrog txoj haujlwm tsis zoo: nws yog dab tsi tuav lub flanged sib koom ua ke nyob rau hauv siab, thiab dab tsi cia koj tawg qhov sib koom ua ke tom qab tsis tau txiav ib yam dab tsi xoob. Hauv refinery, petrochemical thiab fais fab -cog piping, lub neej ntawd bolting qib rau txoj haujlwm yog ASTM A193 B7 - chrome-molybdenum alloy steel stud, feem ntau ua ke nrog ASTM A194 2H txiv ntseej.
Peb muab B7 stud bolts los ntawm 1/2 "mus rau 4" hauv tiaj, kub-dip galvanized, PTFE thiab Xylan tiav, hauv UNC thiab 8UN threads, tag nrho threaded los yog ob npaug -kawg studs nrog txuam 2H txiv ntseej. Yog tias koj bolting li flanged pob qij txha nyob rau hauv siab - kub los yog siab - kev pabcuam siab, qhov no yog qib koj cov piping spec feem ntau hu tawm.
Kennen Steel International Co., Ltd. yog Tuam Tshoj -raws li steel trading tuam txhab thiab thawj tus neeg sawv cev tier mills. Peb tsis khiav ib lub Hoobkas - peb yuav ncaj qha los ntawm vetted qhov chaw mills, tuav lawv rau cov specification koj pom zoo, thiab tswj cov export sab kawg kom kawg. Peb lub xyoos ntawm kev lag luam steel nyob rau hauv Suav teb thiab ib tug vetted network ntawm qhov chaw mills yog dab tsi sawv tom qab txhua qhov kev txiav txim.
Feem ntau ntawm peb cov stud bolt xa mus rau MRO distributors, valve thiab flange cov tub luam, thiab cov neeg cog qoob loo thoob plaws Africa, Middle East thiab Southeast Asia - cov neeg yuav khoom uas xav tau qib zoo, cov txiv ntoo sib tw, kev ntim khoom ncaj ncees thiab cov ntaub ntawv uas tshem lub rooj vag.
Qhov Zoo Tshaj Plaws
Direct mill mov, tsis yog ib qho khoom muag
Peb yuav los ntawm cov mills thiab peb tshuaj xyuas qhov lawv ua. Qib stamped ntawm lub stud yog qib nyob rau hauv lub thawv, thiab yog hais tias ib tug batch tsis tau raws li qhov kev pom zoo specification nws yuav tsis xa. Koj tau txais zeb zoo nrog ib tus neeg lav ris rau qhov kev txiav txim.
B7 thiab 2H muab raws li qhov sib txuam
Studs thiab txiv ntseej yog ib qho system, tsis yog ob qho kev yuav khoom. Peb muab B7 studs nrog txuam ASTM A 194 2H txiv ntseej - thiab 2HM qhov twg qaub - kev pab cuam los yog qis dua - txiv ntseej hardness hu rau - yog li qhov sib koom ua ke yog qhov tseeb txij thaum pib thiab koj tsis tau caum kho vajtse tom qab cov studs tuaj txog.
Chrome-moly rau kub, siab- lub luag haujlwm siab
B7's chrome-molybdenum chemistry yog qhov ua rau nws xaiv tus qauv flanged pob qij txha uas pom qhov kub thiab siab siab. Tensile thiab tawm los ua raws li ASTM A193 B7, nrog rau cov nuj nqis tiag tiag rau cov cua sov tau teev nyob rau hauv daim ntawv pov thawj zeb xeem.
Cov xov uas phim koj cov kav dej spec
UNC ua txhua hnub series; 8UN qhov twg qhov loj imperial loj hu rau nws. Xa peb cov kab spec thiab peb yuav muab cov xov series thiab stud daim ntawv nws xav tias - tag nrho threaded los yog ob npaug - kawg.
Coatings rau ib puag ncig nws tsaws hauv
Plain (dub) rau qhov siab li ib txwm -kev pabcuam kub, kub-dip galvanized rau sab nraum zoov thiab atmospheric raug, thiab PTFE los yog Xylan coatings qhov twg tswj kev sib txhuam thiab yooj yim tawg - tawm yog xav tau. Kev xaiv txheej yog qhov kev txiav txim siab spec - qhia peb txog qhov kev pabcuam thiab peb yuav lees paub qhov haum.
B7M muaj rau kev pabcuam qaub
Qhov twg cov kab ntub dej H2S, B7M rau NACE MR0175 tej zaum yuav yog qib uas tau teev tseg es tsis yog B7 dawb. Peb tuaj yeem hais nws raws li qhov sib txawv sib txawv - muaj thiab cov ntaub ntawv raug lees paub rau ib qho kev txiav txim.
Cov ntaub ntawv uas tshem lub rooj vag
Daim ntawv pov thawj EN 10204 3.1 zeb xeem ib pob los ua tus qauv, kev tshuaj xyuas qhov ntev yog khiav mus rau tus qauv raug suav, thib peb- kev tshuaj xyuas tog tuaj yeem npaj tau raws li qhov kev thov, thiab peb txhawb nqa cov ntaub ntawv ua raws li qhov chaw uas qee lub khw xav tau, xws li KEBS lossis PVoC.
Technical Specifications
| Yam khoom | Specification |
|---|---|
| Khoom npe | B7 Stud Bolts (chrome-moly alloy steel stud bolts nrog A194 2H ceev) |
| Txuj | ASTM A193 B7 (cov pob txha taub hau); Cov txiv ntseej sib piv rau ASTM A194 2H / 2HM |
| Khoom siv | AISI 4140 / 4142 chrome-molybdenum alloy hlau |
| Qib | B7 (B7M rau NACE MR0175 muaj raws li qhov sib txawv, kom paub tseeb) |
| Qhov Loj | 1/2"–4" (M12–M100) |
| Ntev | Ua rau kev txiav txim |
| Stud Daim Ntawv | Tag nrho threaded, los yog ob npaug -kawg / stud nrog hex txiv ntseej ntawm txhua qhov kawg |
| Xov Series | UNC raws li tus qauv; 8UN rau qhov loj imperial loj raws li tau teev tseg |
| Mechanical Properties | Ib ASTM A193 B7 - nominal qhov tseem ceeb yog kwv yees li 860 MPa tensile thiab 725 MPa tawm los (chav kawm 2B); cov ntaub ntawv tseeb tau lees paub ib qho cua sov ntawm daim ntawv pov thawj zeb xeem |
| Hardness | Raws li ASTM A193 B7 - qhov kev txwv tshwj xeeb tau lees paub rau ib pawg ntawm daim ntawv pov thawj zeb xeem |
| Kev Pabcuam Kub | Kev tsim nyog tau lees paub tiv thaiv ASTM A193 B7 thiab koj tus qauv tsim; qhov kev txwv pom zoo tau lees paub rau ib daim ntawv thov |
| Finishes / Coatings | Plain (dub), kub-dip galvanized (HDG), PTFE, Xylan |
| Txheej Thickness | Pom zoo rau kev txiav txim |
| Matching txiv ntseej | ASTM A194 2H (2HM ntawm kev thov) |
| Kos npe | Qib thiab cua sov / ntau qhov cim raws li tus qauv tau hais tseg; lees paub rau ib qho kev txiav txim |
| Dimensional kam rau ua | Ua raws li tus txheej txheem hais; paub tseeb rau qhov loj |
| Ntim | Ntoo rooj plaub los yog nruas nrog kev tiv thaiv hauv ob sab phlu, strapped rau export |
| Daim ntawv pov thawj | EN 10204 3.1 daim ntawv pov thawj zeb xeem ib pawg |
Qib, xov series, daim ntawv, txheej thiab packing yog paub tseeb hais tias tiv thaiv koj piping specification thiab lo lus uas peb ua ntej qhov kev txiav txim muab tso.
Kauj Ruam -los ntawm - Cov txheej txheem tsim khoom
- Bar xaiv- chrome-moly round bar ntawm qib yuav tsum tau kuaj xyuas thiab txiav kom ntev. Cov chemistry xaiv ntawm no yog dab tsi ua rau lub stud B7 es tsis yog ib qho dav - lub hom phiaj bolt.
- Cua sov thiab tsim- lub bar yog rhuab thiab zoo li tus stud profile, nrog xaus chamfered ces cov txiv ntseej pib huv si.
- Kev kho cua sov- quenching thiab tempering tsim cov khoom siv kho tshuab hu ua ASTM A193 B7, kho qhov sib npaug ntawm lub zog thiab tawv.
- Xov dov- threads yog dov es tsis yog txiav, uas ua rau cov nplej ntws mus tas li los ntawm cov xov thiab muab cov xov muaj zog dua li kev txiav.
- Xov gauging- threads yog gauged tiv thaiv series (UNC los yog 8UN) yog li cov stud thiab cov txiv ntseej tiag tiag ua khub.
- Txheej- dawb, kub-dip galvanized, PTFE lossis Xylan txheej yog siv rau qhov tau teev tseg; txheej txheej txheej thiab ib qho kev kho ua ntej - tau lees paub rau ib qho kev txiav txim.
- Kev kuaj thiab cim- Kev ntsuam xyuas cov tshuab thiab hardness yog khiav ntawm cov qauv ntawm cov batch, lub stud yog cim nrog qib thiab ntau, thiab batch daim ntawv pov thawj yog tsa.
- Ntim- cov txiv ntseej thiab cov txiv ntoo sib txuam tau ntim nrog cov ntaub thaiv npog rau hauv cov rooj ntoo lossis cov nruas, khi rau kev xa tawm.
Quality Assurance & Certificate
- EN 10204 3.1 zeb xeem daim ntawv pov thawj ib batch - chemistry, mechanical zog thiab hardness
- Dimensional soj ntsuam tiv thaiv tus qauv (ASTM A193 B7 / A194 2H)
- Xov gauging ib qhov loj thiab series (UNC / 8UN)
- Txheej thickness kos rau HDG, PTFE thiab Xylan tiav
- Thib peb-kev tshuaj ntsuam xyuas muaj nyob rau ntawm kev thov (SGS, BV, Intertek)
- Cov ntaub ntawv txhawb nqa rau cov phiaj xwm kev sib haum xeeb (piv txwv li KEBS lossis PVoC)
- Txhua qhov kev xa khoom raug kuaj xyuas raws li qhov pom zoo tshwj xeeb ua ntej nws tawm mus, yog li thaj av twg yog qhov tau txiav txim
Core Applications
- Flanged pob qij txha nyob rau hauv refinery thiab petrochemical piping
- Fais fab-chaw nres tsheb kav dej, cov kav dej thiab turbine txuas
- Thaum tshav kub kub exchangers, siab hlab ntsha thiab reactors
- Valve, twj tso kua mis thiab flange sib dhos
- Roj, roj thiab txheej txheem kav dej hauv siab - kub thiab siab - kev pabcuam siab
- MRO distributor stock thiab cog cov kev pab cuam tu
- B7M rau qaub-kev pabcuam (ntub H2S) lub luag haujlwm, qhov twg tau teev tseg
FAQ
B7 stud bolts siv rau dab tsi?
Nws yog lub bolting rau flanged pob qij txha nyob rau hauv siab - kub thiab siab - kev pab cuam siab - refineries, petrochemical nroj tsuag, fais fab mov thiab tshav kub exchangers. ASTM A193 B7 yog qib piping specs feem ntau hu rau cov pob qij txha, feem ntau ua ke nrog ASTM A194 2H txiv ntseej.
Qhov txawv ntawm B7 thiab B7M yog dab tsi?
B7 yog tus qauv chrome-moly qib. B7M yog qhov txawv txav rau kev pabcuam qaub thiab tau teev tseg rau NACE MR0175, nrog rau kev txwv qis dua thiab kev tswj nruj dua. Yog tias txoj kab tuav H2S ntub dej, koj qhov spec feem ntau yuav hais tias B7M. Peb tuaj yeem muab nws raws li qhov sib txawv ntawm - qhia peb txog kev pabcuam thiab peb yuav paub meej tias muaj thiab cov ntaub ntawv.
Kuv puas yuav tsum siv UNC lossis 8UN xov?
UNC yog txhua hnub imperial series; 8UN yog ib qho ntawm qhov loj dua thiab qhov twg cov kav dej spec hu rau nws. Nws yog kev txiav txim siab spec, tsis yog qhov nyiam - xa peb cov kab specification thiab peb yuav muab cov koob nws xav tau.
Cov studs puas tuaj nrog txiv ntseej?
Yog lawm. B7 studs nkoj nrog txuam ASTM A194 2H txiv ntseej, thiab 2HM qhov twg qaub- kev pabcuam lossis qis dua - txiv ntseej hardness, yog li qhov sib koom ua ke yog qhov tseeb txij thaum pib.
Kuv yuav xaiv lub txheej twg?
Plain (dub) rau qhov siab li ib txwm - qhov kub thiab txias, kub -dip galvanized rau sab nraum zoov thiab huab cua raug, PTFE lossis Xylan qhov twg tswj kev sib txhuam thiab yooj yim tawg - tawm yog xav tau. Kev xaiv txheej yog nyob ntawm qhov chaw pabcuam - qhia peb tias qhov kev sib koom ua ke mus qhov twg thiab peb yuav lees paub qhov haum.
Cov khoom siv tshuab yog dab tsi?
B7 ua raws li ASTM A193 B7, nrog cov nqi nominal nyob ib ncig ntawm 860 MPa tensile thiab 725 MPa tawm los rau chav kawm 2B. Cov nuj nqis tiag tiag rau koj cov cua sov tau teev nyob rau hauv daim ntawv pov thawj zeb xeem - peb hais daim ntawv pov thawj, tsis yog daim ntawv qhia tus lej.
Koj puas muab daim ntawv pov thawj kuaj thiab tshuaj xyuas?
Yog lawm. Txhua batch nkoj nrog EN 10204 3.1 daim ntawv pov thawj zeb xeem suav nrog cov ntsiab lus pom zoo. Thib peb-kev tshuaj ntsuam xyuas tog (SGS, BV, Intertek) tuaj yeem npaj tau raws li qhov kev thov, thiab peb tuaj yeem txhawb nqa cov ntaub ntawv ua raws li qhov chaw xws li KEBS lossis PVoC qhov twg koj lub lag luam xav tau.
Koj puas tuaj yeem muab cov khoom tsis yog -ntev ntev lossis ib daim ntawv xov xwm tshwj xeeb?
Yog - stud lengths raug txiav txim. Xa peb qhov loj me, xov series thiab stud daim ntawv (tag nrho threaded los yog ob -kawg) los ntawm koj piping spec thiab peb mam li paub meej ua ntej koj cog lus.
Koj puas yog tus tsim khoom?
Tsis yog. Peb yog Tuam Tshoj -raws li steel trading tuam txhab thiab thawj -tier mill tus neeg sawv cev. Peb yuav ncaj qha los ntawm vetted qhov chaw mills, txheeb xyuas qib thiab qhov ntev, thiab tswj cov khoom xa tawm - txheej, ntim, ntawv pov thawj thiab xa khoom. Koj tau txais zeb zoo nrog ib tus neeg lav ris rau qhov kev txiav txim.
