Hlau Fasteners

253 MA yog ib qho depleted austenitic tshav kub-resistant alloy nrog siab zog thiab zoo heev oxidation kuj. Nws muab kev nkag siab zoo heev thiab ua haujlwm rau oxidation, sulfidation thiab yaig ntawm qhov kub siab hauv cov hlau uas muaj tsuas yog 11% npib tsib xee. Stainless hlau 235MA fasteners tuaj yeem tsim nyob rau hauv ntau qhov ntau thiab tsawg, qhov ntau thiab tsawg rau cov neeg siv khoom. Txij li thaum muaj ntau hom tshuab, kuj tseem muaj cov qib sib txawv ntawm cov fasteners.

Stainless hlau 347 hex taub hau bolts tau yooj yim poob lawv lub plhaub electrons, uas ua rau muaj huab dawb ntws ntawm cov hluav taws xob hauv lawv cov kev sib koom ua ke. Meanwhile, 347 stainless hlau fasteners yog siv nyob rau hauv corrosive ib puag ncig uas kub yuav voj voog nyob rau hauv ntau tshaj 800o F (425o C). Kev siv cov tshuab ua kom zoo dua qub. Lwm yam kev siv rau 347 stainless hlau yog thermal sensors thiab thermocouples.

321 Stainless Hlau (UNS S32100\ / ASTM A193 B8T) yog ib tus txheeb ze ze heev. Thaum 347 stainless hlau ruaj khov los ntawm kev sib ntxiv ntawm niobium thiab tantalum los tiv thaiv intergranular corrosion, 321 yog stabilized los ntawm kev sib ntxiv ntawm titanium. Los ntawm kev ntxiv niobium thiab tantalum, cov khoom no tiv thaiv kev tsim ntawm chromium carbides. Txij li cov ntsiab lus no muaj kev sib raug zoo rau cov pa roj carbon ntau dua li chromium, niobium-tantalum carbide precipitates nyob rau hauv cov nplej ntau dua li tsim ntawm cov ciam teb.

904L bolts yog tsim los rau DIN, ISO, ASME, ANSI, UNI, BS thiab BIS dimensional qauv thiab kam rau ua. Peb tsim precision bolts thiab lwm yam fasteners ntawm SS 904L siv cov ntaub ntawv zoo. High-alloy stainless hlau qib 904L yog austenitic alloy. Ib qho ntawm qhov tseem ceeb ntawm kev siv cov hlau no yog qhov ua tau zoo heev rau SCC lossis kev ntxhov siab cuam tshuam txog corrosion ntawm stainless hlau 904L fasteners.

Ntxiv nrog rau npib tsib xee, cov hlau kuj tseem muaj cov tooj liab ntau. Tsis tsuas yog tooj liab ua rau UNS S08904 ntsia hlau resistant rau dej hiav txwv thiab dej ntsev, nws kuj txhim kho cov hlau sulfur. Qhov sib ntxiv ntawm cov ntsiab lus tooj liab rau stainless hlau 904L hex bolts muab kev tiv thaiv corrosion ntau dua li cov chromium-nickel alloys, tshwj xeeb tshaj yog phosphoric, acetic thiab sulfuric acids.

Nyob rau hauv ib puag ncig me me lossis corrosive, 904l stainless hlau bolts yog resistant rau corrosive txo cov neeg ua haujlwm. Ntxiv nta ntawm 904L stainless hlau bolts muaj xws li zoo heev toughness, non-magnetic zog, formability thiab weldability. Nyob rau tib lub sijhawm, stainless hlau Din 1.4539 bolt yog ib qho tsis ruaj khov austenitic alloy nrog cov ntsiab lus carbon tsawg, uas tiv taus SCC thiab crevice corrosion. Austenitic kev tsim kho kuj tseem muaj cov hlau tsis muaj steel UNS NO8904 bolts rau kev ua haujlwm zoo, txawm tias qis qis.

ASTM A453 npog cov lus qhia tshwj xeeb rau kev kub siab bolted pob qij txha nrog coefficients ntawm kev nthuav dav piv rau austenitic stainless hlau. Peb tsim A453 Qib 660 Qib D stud bolts, hex bolts, expansion bolts, threaded rods thiab ntau dua rau tshwj xeeb engineering daim ntaub ntawv. Lub caij no, ASTM A453 Qib 660 Qib D specification muab lub zog tawm los, piv txwv li 95 ksi 655 MPa rau cov kev pabcuam kub kub, raws li, rau cov khoom siv bolted xws li studs, screws, ceev, hex bolts, thiab lub nkoj siab thiab valve flanges Ntau lwm yam fasteners.

AL-6XN yog ib qho alloy uas yog austenitic stainless hlau. Nws feem ntau hu ua super austenitic stainless hlau vim nws muaj ntau yam khoom siv tau zoo. Ib qho txiaj ntsig tseem ceeb ntawm kev siv al6xn bolts yog tias nws tuaj yeem siv rau hauv qhov kub thiab txias. Lub caij no, AL6XN yog ib qho super austenitic alloy, thiab cov khoom siv ntau tshaj plaws yog hlau. Nws yog qhov nrov tshaj plaws ntawm 6% molybdenum alloys. Kev siv feem ntau yog hauv kev ua zaub mov, tshuaj thiab biotechnology industries. Nws nthuav tawm superior corrosion kuj piv rau duplex alloys nyob rau hauv feem ntau ib puag ncig. Vim yog cov ntsiab lus qis nickel, AL6XN fasteners feem ntau yog kev lag luam ntau dua li cov nickel alloy fasteners siab.

Stainless hlau 316Ti hex taub hau bolts feem ntau yog siv rau hauv cov cheeb tsam uas tuaj yeem tiv taus qhov kub siab dua li Hom 304, thiab lawv cov pa roj carbon tsawg ua rau lawv tiv taus cov nag lossis daus. Txawm li cas los xij, zoo li ntau cov hlau tsis muaj steel, stainless hlau 316Ti hex taub hau bolts muaj qhov cuam tshuam rau qhov sov chlorine ib puag ncig thiab tuaj yeem tsim cov pits thiab tawg.

Stainless hlau 304 bolts yog tsim los ntawm ib qho yooj yim austenitic stainless hlau khoom nrog ib tug muaj pes tsawg leeg ntawm 18% chromium thiab 8% npib tsib xee. Lub caij no, Hom 304\ / 18-8 stainless hlau yog cov resistant rau xeb thiab corrosion, thiab tej zaum yuav sib nqus me ntsis. Rau tshuaj lom neeg, dej ntsev los yog ntug hiav txwv dej, 316 stainless hlau tau pom zoo.

Cov khoom siv 304 muaj lub zog siab, lub zog ntawm cov khoom siv 304L yog tsawg li 170MPa, thiab lub zog tawm los ntawm 304 thiab 304H cov ntaub ntawv yog siab li 205MPa. Stainless hlau 304 hex bolts tsis yog conductive lossis thermally conductive thiab tsis yog hlau nplaum.

Fasteners yog cov chaw tsim khoom zoo tshaj plaws ntawm SS 309 bolts uas tuaj yeem txuas tau yooj yim los ntawm cov txheej txheem feem ntau, suav nrog TIG, SMAW, SAW, Plasma, MIG thiab FCAW. Alloy 309 bolts feem ntau yog siv rau hauv boiler baffles, qhov cub liner, cov khoom siv rauv taws, lub thawv hluav taws kub thiab lwm cov hlab ntsha kub.

Stainless hlau 235MA fasteners yog loj tsim nyob rau hauv muaj zog tshwj xeeb hlau. Stainless hlau yog cov hlau uas muaj kev xav tau siab hauv txhua qhov kev lag luam. Cov hlau muaj zog heev thiab ruaj khov, ua pov thawj nws cov txiaj ntsig. 253 ma fasteners yog tsim los ntawm cov ntaub ntawv zoo los ntawm cov chaw tsim khoom muaj koob npe. Kev saib xyuas kom raug los ntawm pab pawg kws tshaj lij yuav pab ua kom ntseeg tau tias 253 ma fasteners ua tau raws li txhua qhov koj xav tau.

Cov khoom ntawm stainless hlau 310 hex taub hau bolts xav tau qhov sib ntxiv ntawm cov hlau alloying uas tsis yog carbon uas tsim cov khoom uas tsis tuaj yeem ua tiav nrog cov pa roj carbon zoo tib yam. ASTM A276 Hom 310S yog cov khoom siv qib tshwj xeeb rau 310S stainless hlau txias-ua haujlwm lossis kub ua haujlwm bar hauv puag ncig, square, hexagonal, thiab lwm yam kub dov extruded duab.

A276 specification 310S bar Tshuag los tsim stainless hlau 310S bolts, ceev, screws, studs, threaded rods, lwm yam fasteners thiab bar Tshuag rooj sib txoos rau dav engineering lub hom phiaj. Txhua qhov kwv yees li ntawm 20 lub ntsiab lus ntawm stainless hlau 310S hex ntsia liaj qhov rooj muaj qhov cuam tshuam tseem ceeb ntawm microstructure nrog rau qhov kub thiab txias, tuav lub sijhawm thiab cua txias ntawm microstructure hloov.

Qib 309 bolts tsis teb rau kev kho cua sov, thiab kev ua haujlwm txias ua rau muaj kev nce hauv hardness thiab lub zog. Hom 309 bolts tsis tuaj yeem hardened los ntawm kev kho cua sov, qhov uas annealing yog ua nyob rau ntawm 1900¡ãF – 2050¡ãF (1038¡ãC – 1121¡ãC) ua raws li dej quenching los yog ceev cua txias. Cua sov no AISI 309 ntsia liaj qhov rooj ntawm 1050¡ãC thiab 1150¡ãC thiab dej quenching xyuas kom meej tias tag nrho cov carbides yaj.

Stainless hlau 310 hex taub hau bolts (xws li ntawm cov roj rigs), tsis tsuas yog ncua lub neej ntawm lub txee, tab sis kuj muaj kev nyab xeeb nyob ib puag ncig. Nws muaj qee yam khoom zoo xws li kev tiv thaiv corrosion, kev tsim kho muaj zog, qhov tseeb qhov tseeb, thiab lwm yam.

ASTM A276 Hom 316Ti yog cov khoom siv qib tshwj xeeb rau 316Ti stainless hlau txias-ua haujlwm lossis kub ua haujlwm bar hauv puag ncig, square, hexagonal, thiab lwm yam kub dov extruded duab. Alloy 316Ti studs ua kom pom qhov corrosion, feem ntau yog xim av staining, uas yog tshwj xeeb tshaj yog muaj feem xyuam rau cov kab nrib pleb thiab ntxhib nto tiav. Qhov qis thermal conductivity ntawm austenitic alloys xws li 316Ti studs ua rau cua sov kom mloog zoo rau ntawm ntug txiav, uas txhais tau hais tias cov coolants thiab lubricants yuav tsum tau siv thiab yuav tsum tau siv ntau ntau.

316 stainless hlau bolts yog ua los ntawm corrosion-resistant thiab muaj zog austenitic stainless hlau. Cov khoom siv yog tsim los ntawm chromium, nickel, molybdenum thiab lwm yam khoom. Qhov no muab lub zog tawm los ntawm 205MPa thiab lub zog tensile yam tsawg kawg nkaus txog li 515MPa rau 316 stainless hlau bolts thiab txiv ntseej.

Cov khoom siv yog kub resistant thiab siv nyob rau hauv feem ntau marine ib puag ncig daim ntaub ntawv. Molybdenum cov ntsiab lus ua rau 316 stainless hlau hex bolts resistant rau chloride ion corrosion cracking.

Monel K500 fasteners yog txias ua haujlwm ua ntej nag lossis daus hardening. Lub zog ntawm cov fasteners yog ruaj khov rau 1200 degrees Fahrenheit. Ntawm no, ntawm qhov ntsuas kub no, nws dhau los ua ductile, ncav toughness nyob ib ncig ntawm 400 degrees Fahrenheit. Ntau zog thiab hardness tom qab nag lossis daus hardening piv rau 400. Vim nws qhov zoo heev, Monel K500 ASTM fasteners yog siv nyob rau hauv ntau yam kev lag luam.

Stainless hlau UNS S31600 bolts feem ntau yog siv rau hauv kev npaj zaub mov cov khoom siv feem ntau hauv cov huab cua chloride. SS 316 Hex Bolts yog austenitic nickel-chromium alloy uas muaj molybdenum. SS 316 Heavy Duty Hex Bolts yog cov hlau zoo tshaj plaws rau kev siv hauv marine ib puag ncig vim nws tiv taus pitting corrosion zoo dua li lwm qib steel.

Stainless hlau 235MA fasteners yog fasteners uas tuav ob lossis ntau qhov chaw rau lub sijhawm teev tseg. Nws tuaj yeem raug loosened nrog lwm cov cuab yeej raws li xav tau los ntxuav lub tshuab. Ua kom muaj zog heev, nws nthuav tawm cov txiaj ntsig zoo thiab cov khoom siv kho tshuab. Qee qhov kev lag luam uas siv cov no suav nrog petrochemicals, tshuaj, thermal fais fab nroj tsuag, electronics, aviation thiab aerospace, thiab lwm yam. Peb tau txais cov neeg siv khoom zoo heev thoob ntiaj teb rau txhua hom 253MA steel fasteners.

Qib 316 stainless hlau fasteners yog tsim los rau kev siv nyob rau hauv ib puag ncig huab cua. Yog li ntawd, cov kev lag luam no xav tau 300-qib stainless hlau series los muab kev tiv thaiv zoo dua thiab muaj zog dua corrosion. SS 316 Bolts thiab Ceev yog tsim los ntawm Ni-Cr-Mo alloy austenitic stainless hlau kom zoo zog thiab zoo heev corrosion kuj.

Qib 316 stainless hlau bolts feem ntau yog siv rau hauv daim ntawv thov xws li ua rau lub qhov cub thiab qhov tso pa tawm nrog rau kev tshaj tawm cov khoom siv tshuaj thiab cov tshuab dav hlau. 316 fasteners tiv taus corrosion hauv seawater thiab marine ib puag ncig. Raws li ib tug ua stainless hlau 316 fastener chaw tsim tshuaj paus, peb muab cov fasteners nyob rau hauv ntau hom, ntau thiab tsawg thiab ntau thiab tsawg. Thov hu rau peb nrog koj qhov kev nug thiab peb yuav ua tau raws li koj xav tau.

Cov khoom muaj qhov tsawg kawg nkaus lub zog ntawm 205 MPa thiab lub zog tensile yam tsawg kawg nkaus ntawm 515 MPa. Cov txiaj ntsig no ua rau cov fasteners haum rau kev kub siab thiab kev siv siab siab thiab. SS 316 Txiv Ntseej Bolt cov npe teev npe txawv ntawm tus neeg muag khoom, hom fastener thiab qhov chaw xa khoom. Ib qho ntawm cov laj thawj rau kev ua kom zoo dua qub thiab lub cev muaj zog ntawm Hom 316 stainless hlau fasteners yog cov muaj pes tsawg leeg ntawm cov hlau. Lub alloy ntawm 316 stainless hlau screws yog tsim los ntawm peb lub ntsiab tseem ceeb - chromium, nickel thiab molybdenum.

Lub taub hau hex ntsia liaj qhov rooj yog lub cylindrical fastener nrog ib lub taub hau ntawm ib kawg thiab ib qho xov sab nraud ntawm lwm qhov, tsim los muab tso rau hauv ib lub qhov nyob rau hauv ib qho kev sib sau ua ke thiab cov phooj ywg nrog ib qho kev sib txuas hauv xov tooj hu ua txiv ntseej, tig kom nruj los yog loosen Unscrew lub ntsia liaj qhov rooj. Alloy 316 yog molybdenum-muaj austenitic stainless hlau uas muaj 18% chromium, 8% nickel, thiab 2-3% molybdenum.

ASTM A276 specification npog cov tshuaj muaj pes tsawg leeg, txhua yam khoom, kev kho cua sov, thiab lwm yam kev xav tau ntxiv rau 310S stainless hlau puag ncig, square, hexagonal, thiab lwm yam extruded profiles. Stainless hlau 310 Hex Bolts hloov qhov hloov pauv ntawm ferrite thiab austenite, hloov cov tshuaj thiab diffusion tus nqi, thiab sib tw nrog lwm cov ntsiab lus los tsim cov khoom sib txuas xws li carbides thiab nitrides.

Vim nws cov tshuaj nyias nyias, RA 253 MA yog qhov pheej yig heev piv rau feem ntau cov hlau tsis muaj cua sov. Stainless hlau 253 MA fasteners muaj cov qib sib npaug xws li UNS S30815, tus qauv SS 253 MA thiab nws WERKSTOFF NR. yog 1,4835. Cov khoom siv kho tshuab hauv qhov txwv tsawg kawg nkaus yog nws qhov 2 "elongation ntawm 40%, nws qhov kawg tensile zog ntawm 87,000 psi, nws cheeb tsam txo ntawm 50%, thiab nws offset yield zog ntawm 45,000 psi.

253 MA ua tiav nws cov khoom siv hluav taws xob los ntawm kev tswj hwm microalloy ntxiv. Cerium txuas nrog silicon los muab cov oxidation zoo heev ntawm qhov kub txog li 2000ºF (1093¡ãC). Kev sib xyaw ua ke ntawm nitrogen, carbon thiab cerium muab ob zaug lub zog tawg ntawm 310 thiab 309 stainless hlau ntawm 1600¡ãF (871¡ãC). Nws 0.2% offset yield zog yog tus yam ntxwv nyob rau hauv ib tug raug ntau yam ntawm hardness Rockwell B yog Rb 90 thiab 0.2% offset yield zog yog 45000 rau 69000 psi, nws 2 "elongation yog 42% mus rau 70%, qhov kawg Tensile zog yog 90,000 rau 01 psi,

Cov ntsiab lus qis ntawm cov hlau tsis muaj steel 304 hex bolts minimizes chromium carbide nag lossis daus los ntawm vuam thiab nws qhov cuam tshuam rau intergranular corrosion. SS 304 Ceev thiab Bolts muaj txog li 515MPa yam tsawg kawg nkaus tensile lub zog thiab 40% elongation nrog lub siab tshaj plaws hardness ntawm 201HB. Steel bolts yog lub zog siab steel alloys thiab yog cov khoom lag luam zoo tshaj plaws. High mechanical zog yog los ntawm cov tshuaj muaj pes tsawg leeg ntawm carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel thiab nitrogen.