BS EN 42CrMo4 | 1,7225 Alloy Engineering Steel

BS EN 42CrMo4 |  1,7225 Alloy Engineering Steel

Luv hauj lwm:

BS EN 42crmo4 Alloy Steel is a common chromium-molybdenum steel that usually used after quenchedand tempered, with high intensity, high hardenability. BS EN 42CrMo4round steel has better performance than 34CrMo4 steel due to the carbonand chromium content is higher. 42CrMo4 alloy steel has higher strength and hardenability. The 42CrMo4 alloy material alsohas high fatigue strength and good low-temperature impact toughness. The temper brittleness is not obvious. Although 42CrMo4 steel is mo...


  • Length: 3-5.8mm los yog Customization
  • Deg: dub, peeled, los yog ntxhib muab
  • Thaum tshav kub kub kev kho mob: cua-txias, normalized, annealed, Q & T
  • Smelting txheej txheem: EAF + LF + VD
  • khoom Nthuav dav

    khoom cim npe

    BS EN 42crmo4 Alloy Steel


    yog ib qho chromium-molybdenum steel uas feem ntau siv tom qab hnub tuag
    thiab tempered, uas muaj siv, siab hardenability. BS EN 42CrMo4
    round steel muaj kev kawm zoo tshaj 34CrMo4 steel vim cov pa roj carbon
    thiab chromium cov ntsiab lus yog ntau dua. 42CrMo4 hlau steel


    muaj ntau dua lub zog thiab hardenability. Lub 42CrMo4 hlau cov ntaub ntawv uas kuj
    muaj high qaug zog lub zog thiab zoo uas tsis muaj-kub tej yam toughness. Cov


    kev npau taws brittleness yog tsis cuab kev.


    Txawm tias 42CrMo4 steel yog kim kim dua 41Cr4 steel, nws yog ntau


    preferable nyob rau hauv cov nqe lus ntawm cov ntaub ntawv uas lub zog. EN 42CrMo4 hlau
    engineering steel ntaub ntawv tau tau lug siv nyob rau hauv tsheb tsav tsheb
    hais. Otai Steel yog tau muab koj prime zoo ntawm 42CrMo4
    hlau steel ntaub ntawv nrog ntau ntau.

    1.42CrMo4 Alloy Steel Mov Ntau

    42CrMo4 Round bar ntau thiab tsawg: 80mm - 1200mm
    Steel 42CrMo4 pav ca thiab Phaj: 10 hli-1500 hli thickness x 200-3000mm dav
    Lwm yam steel zoo thiab ntau thiab tsawg muaj raws li koj yuav tsum tau.

    Deg kev mob : Black, ntxhib machined, peeled, muab los yog lwm yam yuav tsum tau raws li koj yuav tsum tau.

    2.BS EN 42CrMo4 Alloy Steel Yam Specifications thiab kom muaj sib npaug

    BS EN 10250 Khoom Tsis DIN ASTM A29 JIS G4105 BS 970 -3-1991 BS 970-1955 AS 1444 AFNOR
    42CrMo4 1,7225 38HM 4140 SCM440 708M40 EN19A 4140 42CD4

    3.42CrMo4 Alloy Steel Tshuaj Muaj pes tsawg leeg

    42CrMo4 / 1,7225 C Mn si P S Kr mo
    0.38-0.45 0.60-0.90 0.40 max 0,035 max 0,035 max 0.90-1.20 0.15-0.30

    4. DIN 42CrMo4 Alloy Steel Neeg kho tshuab khoom

    Loj Ø hli Paib kev nyuaj siab
    Rp0.2, N / nn2, min.
    Qhov kawg tensile kev nyuaj siab,
    rm, N / nn2
    Elongation
    A5,%, min.
    Hardness HB Toughness
    KV, Joule, min.
    <40 750 1000-1200 11 295-355 35 ntawm 20ºC
    40-95 650 900-1100 12 265-325 35 ntawm 20ºC
    > 95 550 800-950 13 235-295 35 ntawm 20ºC

    5. Thaum tshav kub kub kho mob ntawm 42CrMo4 Steels

    Annealing ntawm 42CrMo4 Steels

    • Thaum tshav kub kub steel 42CrMo4 forged hlau maj mam thiab meej rau 800-850 ° C;

    • Txias maj mam nyob rau hauv lub cub tawg rau qhov kub thiab txias 480 °;

    • Sau kom tiav Annealing lub steel nyob rau hauv cov huab cua.

    Quenched thiab tempered (Q + T)

    • Thaum tshav kub kub 42CrMo4 steel maj mam mus 880 ° C;

    • Tsau ntawm no kub ces tua nyob rau hauv cov roj;

    • Kev npau taws sai li sai tau raws li 42CrMo4 steel ncav tsis cuag chav tsev kub (20 ° C);

    • Sov uniformly rau tus haum kub ntawm 560 ° C;

    • Thim lub 42CrMo4 ntaub ntawv los ntawm lub cub tawg thiab txias nyob rau hauv cov huab cua.

    6. Forging ntawm 42CrMo4 Alloy Steel

    • Preheat 42CrMo4 engineering steel uniformly thiab maj mam;

    • Ua kom lub forging kub txog li 1150-1200 ° C.

    • Nco ntsoov cia kom cov forging kub saum toj no tsawg kawg yog 850 ° C

    7.Weldability

    Engineering


    steel 42CrMo4 tau tsuas txwv weldability. Preheating rau 200-300 ° C yog
    xav pom zoo kom; lub sab sauv txwv yuav tsum tsis txhob ua zoo tshaj vim hais tias ntawm
    yuav raug rau deterioration ntawm lub chrome txheej.

    Alloy steel 42CrMo4
    yuav tsis sib haum xeeb welded. Txawm li cas los, yuav tau ceev faj yog tsim nyog thiaj li mus
    txo tus tsim ntawm undesirable microstructures nyob rau hauv lub welded tsam.

    8.Application ntawm 42CrMo4 Alloy Steels

    EN


    42CrMo4 hlau steel yog dav siv rau engineering steel lub hom phiaj, xws
    li: ua ntau hom machinery, tsheb, tsuas spare feem,
    lub gearwheel ntawm lub engine, cov tsav tsheb iav ntawm supercharger, lub
    txuas nyiag, lub pinchock nyob rau hauv lub siab, qhov chaw rau lub hwj chim
    lub tsheb ciav hlau siv, txias tsim khawm ris yam, shafts, zog,
    xyaum collars rau cov roj kev tshawb kawm, thiab lwm yam


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