4140 Alloy Steel Tensile: Nws Muaj Zog Muaj Zog Li Cas?

Hauv engineering thiab kev tsim khoom, lub zog yog qhov kev txiav txim siab. Seb nws yog crankshaft nyob rau hauv lub tsheb cav los yog ib tug high-load pin nyob rau hauv kev tsim kho cov cuab yeej, tensile lub zog txiav txim siab npaum li cas load ib cov khoom yuav lis ua ntej tawg. Ntawm ntau cov hlau alloys muaj,4140 alloy hlautau txais lub koob npe nrov rau nws qhov sib npaug zoo ntawm tensile lub zog, toughness, thiab machinability.

Tab sis muaj zog npaum li cas yog 4140 alloy steel -tiag tiag? Hauv tsab xov xwm no,sakysteel uadives tob rau hauv cov khoom tensile ntawm 4140, tshawb nrhiav dab tsi ua rau nws yog ib qho khoom siv ntseeg siab hauv kev thov cov qauv siv thiab cov tshuab siv tshuab.

4140 Alloy Steel yog dab tsi?

4140a iblow-alloy chromium-molybdenum hlaupaub txog nws lub zog tensile siab thiab zoo qaug zog tsis kam. Nws yog dav siv nyob rau hauv manufacturing, machining, tooling, thiab heavy-duty Cheebtsam.

Cov tshuaj tseem ceeb ntawm 4140 suav nrog:

• Cov pa roj carbon:0.38% - 0.43%

• Chromium:0.80% - 1.10%

• Molybdenum:0.15% - 0.25%

• Manganese:0.75% - 1.00%

• Silicon:0.15% - 0.35%

Cov ntsiab lus alloying no txhim kho hardenability thiab lub zog, ua 4140 yog ib qho ntawm cov hlau zoo tshaj plaws rau kev siv cov qauv.

Nkag siab Tensile Strength

Tensile zogyog hais txog qhov siab tshaj plaws ntawm tensile (rub lossis stretching) kev ntxhov siab rau cov khoom siv tau ua ntej ua tsis tiav. Nws feem ntau yog ntsuas hauvmegapascals (MPa) or phaus ib square inch (psi). Lub zog tensile siab dua txhais tau tias cov khoom tuaj yeem tiv taus ntau dua ua ntej deforming lossis tawg.

Tensile zog ntawm 4140 Alloy Steel

Lub zog tensile ntawm 4140 steel nyob ntawm qhov hnyav ntawm nws cov kev kho cua sov:

1. Annealed mob

Hauv nws lub xeev softest (annealed), 4140 steel feem ntau muaj:

• Tensile zog:655-850 MPa

• Yield zog:415-620 MPa

• Hardness:~ 197 HB

2. Cov xwm txheej zoo li qub

Tom qab normalization, cov hlau cov qauv ua zoo ib yam, txhim kho txhua yam khoom:

• Tensile zog:850-1000 MPa

• Yield zog:650-800 MPa

• Hardness:~ 220 HB

3. Quenched thiab Tempered (Q & T)

Qhov no yog qhov tshwm sim feem ntau rau cov ntawv thov kev ua haujlwm siab:

• Tensile zog:1050-1250 MPa

• Yield zog:850-1100 MPa

• Hardness:28-36 HRC

At sakysteel ua, peb muab4140 alloy hlaunyob rau hauv ntau yam kev kho cua sov, optimized kom phim cov kev xav tau lub zog tshwj xeeb rau kev lag luam sib txawv.

Vim li cas 4140's Tensile Strength siab dhau?

Cov ntsiab lus tseem ceeb tom qab 4140's siab tensile muaj xws li:

• Chromium Cov ntsiab lus:Ntxiv hardness thiab hnav tsis kam

• Molybdenum:Txhim kho lub zog ntawm qhov kub thiab txias thiab txhim kho hardenability

• Thaum tshav kub kub kho Flexibility:Tailors microstructure kom phim qhov xav tau lub zog thiab toughness

• Balanced Carbon Qib:Muab kev sib xyaw ua ke zoo ntawm lub zog thiab ductility

Cov yam ntxwv no tso cai rau 4140 kom ua tau zoo dua cov pa roj carbon ntau thiab txawm tias qee cov cuab yeej hlau thaum nws los txog rau lub zog tensile hauv qab load.

4140 Piv rau Lwm Cov Hlau Li Cas?

4140 vs 1045 carbon hlau

• 1045 yog ib qho nruab nrab carbon steel nrog tensile zog nyob ib ncig ntawm 570 - 800 MPa.

• 4140 muaj 30% mus rau 50% ntau zog, tshwj xeeb tshaj yog thaum tshav kub-kho.

4140 vs 4340 hlau

• 4340 suav nrog npib tsib xee, uas txhawb nqa qhov hnyav thiab qaug zog.

• Thaum 4340 tuaj yeem muab qhov hnyav dua me ntsis, 4140 yog kev lag luam ntau dua nrog kev ua haujlwm tensile zoo sib xws.

4140 vs Stainless hlau (piv txwv li, 304, 316)

• Austenitic stainless hlau muaj kev tiv thaiv corrosion tab sis qis zog tensile (feem ntau ~ 500 - 750 MPa).

• 4140 yog ze li ob npaug ntawm qhov muaj zog tab sis yuav tsum tau tiv thaiv corrosion nyob rau hauv ib puag ncig hnyav.

Cov ntawv thov uas nyob ntawm 4140's Tensile Strength

Vim tias nws lub zog tensile siab, 4140 yog siv dav hauv cov khoom uas ua rau cov khoom hnyav lossis lub zog muaj zog. Cov ntawv thov ib txwm muaj xws li:

Automotive

• Tsav ncej

• Crankshafts

• Suspension Cheebtsam

• Gear blanks

Roj & Roj

• Laum dab tshos

• Cov cuab yeej sib txuas

• Valve lub cev

• Hydraulic fittings

Aerospace

• Landing gear Cheebtsam

• Cav txhawb nqa brackets

• Precision linkages

Tool & Tuag

• Punches thiab tuag

• Cov cuab yeej tuav

• Cov cuab yeej tsim

Muaj peev xwm tiv taus ob qho tib si static thiab cyclic loads ua4 140tus txha caj qaum ntawm suav tsis txheeb cov khoom tseem ceeb hauv kev lag luam thoob ntiaj teb.

Tej yam uas cuam tshuam lub zog tensile hauv kev xyaum

Lub zog tensile theoretical ntawm 4140 tuaj yeem sib txawv hauv cov ntawv thov tiag tiag raws li:

• Qhov loj ntawm qhov seem:Cov hlaws loj dua tuaj yeem ua kom qeeb qeeb thaum kho cua sov, txo qhov nyuaj.

• Nto tiav:Rougher tiav tuaj yeem ua raws li kev ntxhov siab.

• Machining kev ua haujlwm:Kev ua haujlwm tsis raug tuaj yeem ua rau muaj kev ntxhov siab.

• Kev kho cua sov tswj:Precise quenching thiab tempering kub ncaj qha cuam tshuam lub zog kawg.

At sakysteel ua, peb siv cov kev tswj xyuas nruj thaum lub sij hawm kho cua sov thiab machining kom paub meej thiab zoo tensile zog nyob rau hauv tag nrho peb 4140 alloy steel khoom.

Kev xeem thiab ntawv pov thawj

Lub zog tensile feem ntau ntsuas siv auniversal xeem tshuab (UTM)ua raws li ASTM lossis ISO cov qauv. Cov qauv hlau yog ncab kom txog thaum nws tawg, thiab cov txiaj ntsig tau raug kaw.

Tag nrhosakysteel ua4140 steel cov ntaub ntawv tuaj yeem muab nrog:

• EN 10204 3.1 daim ntawv pov thawj

• Mechanical test reports

• Cov ntaub ntawv tshuaj muaj pes tsawg leeg

Qhov no ua kom pom tseeb tag nrho thiab ua raws li cov qauv kev lag luam.

Kev xav zaum kawg

4140 alloy hlauyog tiag tiag ib qho ntawm ntau yam thiab muaj zog steels muaj nyob rau hauv lub ntiaj teb no kev ua lag luam. Nrog lub zog tensile siab tshaj 1000 MPa hauv kev kho mob, nws ua tau raws li qhov xav tau ntawm cov txheej txheem, kev siv tshuab, thiab cov cuab yeej siv.

Thaum lub zog, durability, thiab kev ua haujlwm tseem ceeb tshaj plaws,4140 khoom-thiabsakysteel uaxyuas kom koj tau txais tsuas yog cov khoom zoo tshaj plaws, kuaj thiab ntawv pov thawj rau koj txoj kev thaj yeeb nyab xeeb.