304 Hex Txiv Ntoo Bolt

ASME: 1 / 2 " ~ 2 1 / 2 " Ntsia Liaj Qhov Stainless Hlau 304 / 304 L Ob Tug Quav Stainless Hlau Fasteners

1. ANSI / ASME B 1 8.. 2 .6 - 2 003 Hnyav hex ceev rau kev siv nrog cov pob tw, ASTM A 563 / ASTM A 1 94

2. Qhov sib txawv ntawm 18-8, hom 304, thiab hom 316 stainless hlau zoo li cas?

Txhawm rau teb cov lus nug no, koj yuav tsum xub paub qee cov ntaub ntawv xov xwm txog cov hlau tsis xeb. “Stainless Hlau”Yog lub npe dav dav rau tsev neeg coob ntawm cov hlau tsis xeb uas muaj tsawg kawg yog 10. 5% chromium ua ib feem ntawm lawv cov qauv. Ntawm thiab siab dua theem no ntawm chromium, cov txheej txheem nyuaj chrome-oxide txheej txheej tiv thaiv kom tsis txhob ntxiv cov pa atoms los ntawm kev nkag mus rau hauv cov hlau thiab yog li tiv thaiv cov hlau hauv matrix los ntawm kev xeb. Cov txheej no yog dab tsi ua rau cov hlau “stainless.” Cov qib siab ntawm chromium thiab ntxiv rau lwm cov ntsiab lus alloying xws li molybdenum thiab nickel txhim kho qhov kev tiv thaiv no thiab ntxiv txhim kho qhov kev txhim kho corrosion ntawm cov hlau tsis xeb. Muaj ntau yam sib txawv ntawm stainless, tab sis los ntawm qhov nrov tshaj plaws thiab siv dav yog cov 300 series stainless hlau, tseem hu ua austenitic stainless hlau.

Kev tsim tawm ntawm 300 cov khoom sib txawv muaj ntau qhov sib txawv ntawm cov hlau tsis huv (303, 304, 305, 316, 321, {{6 }, thiab lwm yam.) tab sis cov teeb meem tshwm sim ntawm lawv yog:

• Lawv cov pa roj carbon ntsiab lus feem ntau muaj rau qhov siab kawg nkaus ntawm 0. 08%

• Lawv (feem ntau) muaj 18% chromium

• Lawv (feem ntau) muaj 8% npib tsib xee

• Lawv tsis yog-sib nqus

• Lawv tsis tuaj yeem tawv los ntawm kev kho cua sov

• Lawv tuaj yeem siv tawv los ntawm cov khoom siv txias ("ua haujlwm tawv.")

Lo lus "1 8 - 8" feem ntau yog siv los tsim cov khoom uas ua los ntawm 300 series stainless. Qhov no "1 8 - 8" hu tawm yog xa mus rau 18% chromium / 8% nickel alloy sib xyaw ntawm cov hlau. "1 8 - 8" tsis yog qhov tseeb piav qhia, vim nws tsuas yog hais txog ob hom sib txawv ntawm cov hlau. Thaum txhua 300 series stainless hlau qhia qhov no 18 / 8 sib tov, qhov sib txawv me ntsis ntawm cov tshuaj lom neeg muaj sib txawv ntawm qib sib txawv ntawm qhov 300 koob ua rau qee qib muaj kev tiv thaiv ntau dua li lwm tus tawm tsam tej yam xeb. Hauv kev lag luam fastener lo lus "1 8 - 8" feem ntau yog siv los ua qauv tsim rau ntsia liaj qhov rooj, txiv ntseej, los yog tshuab ntxhua khaub ncaws uas tsim los ntawm 300 series stainless hlau cov khoom uas muaj cov {{ 3}}% chromium / 8% nickel alloy sib xyaw. Txawm li cas los xij, lub tshuab hluav taws xob tso tawm los ntawm cov khoom siv stainless uas ua tau raws li 18 / 8 alloy sib xyaw tsis tas yuav ua tau raws li lwm qhov sib txawv me ntsis hauv kev sib txawv hauv cov khoom siv tshuaj yuav tsum tau lees tias nws yog hom 304 stainless. Hom 304 yog nyob deb ntawm cov nrov tshaj ntawm cov 300 series stainless hlau.

Qhov thib ob hom nrov tshaj plaws ntawm stainless, tom qab Hom 304, yog Hom 316. Hauv Hom 316 stainless, cov ntsiab lus chromium tau qis los ntawm 18% mus rau 16%, txawm li cas los xij, cov ntsiab lus nickel tau tsa rau 10% thiab 2% molybdenum yog ntxiv rau qhov sib xyaw. Qhov kev hloov pauv ntawm chromium / nickel piv thiab qhov sib ntxiv ntawm molybdenum ua rau muaj kev cuam tshuam ntau ntxiv rau chlorides. Qhov no yog vim li cas Hom 316 stainless feem ntau siv rau ntau qhov chaw muaj teeb meem uas cov khoom yuav tau nphav tau tshuaj lom neeg, tshuaj lom neeg, lossis dej ntsev thiab ua rau cov khoom siv zoo dua rau kev tsim kho marine.

3. Dab tsi yog qhov sib txawv ntawm hex bolts xaj ua hom 3 04 xeb hlau, A19 3 Qib B 8, thiab F59 3 Pab pawg {{5 }} (hom 3 04 stainless)?

Hex bolts feem ntau xaj raws li hom 304 stainless thiab tsis yog rau qhov tshwj xeeb ASTM tshwj xeeb. Thaum bolts raug txiav txim raws li cov khoom siv raw qib (hom 304) thiab tsis yog rau ASTM fastener cov lus qhia, tsis muaj ib qho kev tseev kom muaj lwm yam tshaj li qhov lawv ua tau raws li kev siv tshuaj thiab lub cev ntawm 304 cov xeb hlau thiab ASME B 18. 2. 1 seem qhov xav tau rau hex bolts.Lub teb chaws ntxhib xovfeem ntau yuav muaj tshwj tsis yog muaj lwm yam sau tseg.

Hom 304 stainless hlau hex bolts uas tau txiav txim raws li ASTM fastener specification A 193 qib B 8 yuav tsum muaj ob qho tag nrho carbide tov annealed thiab ntaus cim rau qhov A 193 qhov tshwj xeeb Cov. Carbide tov annealing yog txheej txheem ntawm cov khoom siv cua sov kom txog qhov kub siab txog ntawm 1, 950 degrees lossis siab dua thiab tswj qhov kub kom ntev txaus rau cov chromium carbides yuav mus rau hauv cov tshuaj. Cov txheej txheem no yuav coj cov bolts rov qab rau lawv txoj kev pom zoo tshaj plaws corrosion resistant tom qab lub forging (nqe lus hais txog) cov txheej txheem. Cov taub hau taub thiab ib kawg ntawm cov pas nrig yuav tsum cim nrog "B 8" thiab ib qho chaw cim khoom lag luam tshwj xeeb. A 193 qhov tshwj xeeb tseem yuav tsum kom 8 xov ib nti siab tshaj ib nti inch tshwj tsis yog muaj lwm yam ua.

Ib hom 304 stainless hlau hex ntsia liaj qhov rooj uas tau txiav txim siab raws li ASTM F 593 Pab pawg {{2}} yuav tsum muaj cov txheej txheem ntxiv uas tau ua uas tshaj qhov yuav tsum tau ua ntawm A 193 qib B {{4}. Cov ntsia hlau no yuav tsum muab ntaus cim nrog tus tsim kev lag luam, "F 593 ″, thiab tsim kev tsim nyog, thiab yog hais tias bolts yog kub kub tsim, lawv kuj yuav tsum tau muab cov carbide tov nrog kev siv. Ib qho ntxiv, F 593 bolts yuav tsum xeem dhau qhov kev sib tw corrosion intergranular, uas tsis tas yuav tsum muaj thaum bolts tau txiav txim siab raws li hom 304 stainless lossis hauv qab ASTM A 193 qib B 8 tshwj xeeb Cov. F 593 tsis muaj tib lub 8 UN series xov xav tau saum toj no {{1 2} ″ taub li A 193 Qib B 8, thiab yog feem ntau muab nrog Unified National Coarse threads. F 593 qhov tshwj xeeb tseem yog qhov tshaj plaws ntawm lub taub ntau ntawm {{1 2} - 1 / 2 ".

Cim npe nrov: 304 hex txiv ntseej ntsia liaj qhov rooj, Suav teb, chaw tsim tshuaj paus, hoobkas, nqe, Mekas