AISI 4140 Steel 1.7225 42CrMo4 SCM440

AISI 4140 Alloy Steel yog ib hom chromium-molybdenum steel uas feem ntau siv tom qab quenched thiab tempered, nrog kev siv siab, siab hardenability. Lub alloy 4140 phaj kuj muaj lub zog qaug zog thiab ua haujlwm zoo rau qhov kub thiab txias.

Gnee muaj txiaj ntsig zoo ntawm 4140 steel phaj:

• 1500+ tons txhua hnub Tshuag ntawm 4140 alloy phaj lossis tiaj tiaj.
• Kub dov / annealed / Q + T (PH prehardened) muaj.
• Thickness 4-300mm muaj rau 1-3 hnub xa khoom.
• Thickness 1-10mm txias dov ntawv rau 30 hnub ua lub sij hawm.
• Txiav rau qhov dav & txiav kom ntev kev pabcuam muaj.
• Machined rau kam rau ua & roughness daim pab muaj.

Thaum tham txog AISI 4140, nws yog ib qho tseem ceeb kom nkag siab tias tus lej qib txhais li cas:

AISI 4140 yog tsim los ntawm kev tso hlau, carbon, thiab lwm yam alloying ntsiab rau hauv lub cub hluav taws xob lossis lub cub tawg. Cov ntsiab lus tseem ceeb ntxiv rau AISI 4140 yog:

• Chromium
• Manganese
• Molybdenum

Thaum cov hlau, carbon, thiab lwm yam alloying ntsiab tau muab sib xyaw ua ke ua kua, nws raug tso cai kom txias. Tom qab ntawd cov hlau yuav tsum tau annealed; tej zaum ob peb zaug.

Tom qab lub annealing tiav lawm, cov hlau yog rhuab mus rau lub molten theem dua kom nws yuav tsum tau nchuav rau hauv daim ntawv xav tau thiab yuav ua tau kub ua hauj lwm los yog txias ua hauj lwm los ntawm rollers los yog lwm yam cuab yeej mus txog rau lub thickness xav tau. Tau kawg, muaj lwm yam haujlwm tshwj xeeb uas tuaj yeem ntxiv rau qhov no kom txo cov nplai zeb lossis txhim kho cov khoom siv kho tshuab.

AISI 4140 yog cov hlau tsis tshua muaj hlau. Tsawg alloy steels cia siab rau cov ntsiab lus uas tsis yog hlau thiab carbon los txhim kho lawv cov khoom siv kho tshuab. Hauv AISI 4140, ntxiv cov chromium, molybdenum, thiab manganese yog siv los ua kom lub zog thiab hardenability ntawm cov hlau. Qhov ntxiv ntawm chromium thiab molybdenum yog vim li cas AISI 4140 yog suav tias yog "chromoly" hlau.

Muaj ob peb yam khoom tseem ceeb ntawm AISI 4140, suav nrog:

• Tensile Strength: AISI 4140 steel feem ntau muaj lub hom phiaj qhov kawg tensile zog ntawm ib ncig ntawm 95,000 psi.
• Toughness
• Ductility
• Hardenability

Cov lus hauv qab no qhia txog cov tshuaj muaj pes tsawg leeg ntawm AISI 4140:

Qhov sib ntxiv ntawm chromium thiab molybdenum txhawb kev tiv thaiv corrosion. Cov molybdenum tuaj yeem pab tau tshwj xeeb thaum sim tiv thaiv corrosion vim chlorides. Cov manganese hauv AISI 4140 yog siv los ua kom tawv tawv thiab ua deoxidizer. Hauv cov hlau alloy, manganese kuj tuaj yeem ua ke nrog sulfur los txhim kho kev ua haujlwm thiab ua kom cov txheej txheem carburizing zoo dua.