Aisi 8620 Karfe | 1,6523 | 21NiCrMo2 | SNCM220

Aisi 8620 Karfe |  1,6523 |  21NiCrMo2 |  SNCM220

Short Description:

Aisi 8620 Karfe ne a low gami nickel, chromium, molybdenum hali hardening karfe, kullum kawota a matsayin birgima yanayin da a kalla taurin HB 255max. Sae karfe 8620 yayi high waje ƙarfi da kyau internalstrength, yin shi sosai sa resistant. Aisi 8620 karfe yana da wani highercore ƙarfi daga gare maki 8615 da kuma 8617. Sae 8620 gami karfe isflexible a lokacin hardening jiyya, haka kunna kyautata ofcase / core Properties. Pre ƙẽƙashe kuma zafin (uncarburized) 8620 ca ...


  • Length: 3-5.8mm ko gyare-gyare
  • Surface: black, peeled, ko m juya
  • Heat jiyya: iska-sanyaya, bisa al'ada, annealed, Q & T
  • Smelting tsari: EAF + LF + VD
  • samfurin Detail

    samfurin Tags

    Aisi 8620 Karfe


    ne a low gami nickel, chromium, molybdenum hali hardening karfe,
    kullum kawota a matsayin birgima yanayin da a kalla taurin HB


    255max. Sae karfe 8620 yayi high waje ƙarfi da kyau ciki
    ƙarfi, yin shi sosai sa resistant. Aisi 8620 karfe yana da mafi girma
    core ƙarfi daga gare maki 8615 da kuma 8617.

    Sae 8620 gami karfe ne
    m lokacin hardening jiyya, ta haka zai taimake inganta
    hali / core Properties. Pre ƙẽƙashe kuma zafin (uncarburized) 8620 iya
    zama m surface taurare, ta nitriding amma ba zai amsa
    mai gamsarwa ga harshen wuta ko shigar da hardening saboda ta low carbon
    ciki.

    Karfe 8620 aka dace domin aikace-aikace da bukatar a
    hade da tauri da kuma ci juriya. Wannan sa ne fiye
    kawota a zagaye mashaya.


    1. Aisi 8620 Karfe Supply Range

    8620 Zagaye Bar: diamita 80mm - 1200mm
    8620 Karfe Plate: kauri 10mm - 1500mm x nisa 200mm - 3000mm
    8620 Square Bar: 140mm - 460mm
    8620 shambura ma samuwa da your cikakken request.
    Surface Gama: Black, Kakkausar machined, ya karɓi ko matsayin da ba da bukatun.

    2. Sae 8620 Karfe Musammantawa da Relevant Standards

    kasar

    USA DIN BS BS

    Japan

    Standard

    ASTM A29 Din 1654 EN 10084

    BS 970

    Jis G4103

    maki

    8620

    1,6523 /
    21NiCrMo2

    1,6523 /
    20NiCrMo2-2

    805M20

    SNCM220

    3. ASTM 8620 Steels & Equilvalents Chemical Abun da ke ciki

    Standard Grade C mn P S Si Ni Kr Mo
    ASTM A29 8620 0.18-0.23 0.7-0.9 0,035 0,040 0.15-0.35 0.4-0.7 0.4-0.6 0.15-0.25
    Din 1654 1,6523 /
    21NiCrMo2
    0.17-0.23 0.65-0.95 0,035 0,035 ≦ 0.40 0.4-0.7 0.4-0.7 0.15-0.25
    EN 10084 1,6523 /
    20NiCrMo2-2
    0.17-0.23 0.65-0.95 0,025 0,035 ≦ 0.40 0.4-0.7 0.35-0.70 0.15-0.25
    Jis G4103 SNCM220 0.17-0.23 0.6-0.9 0,030 0,030 0.15-0.35 0.4-0.7 0.4-0.65 0.15-0.3
    BS 970 805M20 0.17-0.23 0.6-0.95 0,040 0,050 0.1-0.4 0.35-0.75 0.35-0.65 0.15-0.25

    4. Aisi 8620 Karfe inji Properties

    • 8620 jiki Properties:

    Yawa (laba / cu. A.) 0.283
    Specific Nauyi 7.8
    Specific Heat (Btu / laba / Deg F - [32-212 Deg F]) 0.1
    narkewa Point (Deg F) 2600
    thermal iya watsin makamashi 26
    nufi Coeff thermal Fadada 6.6
    Modulus na elasticity tashin hankali 31

    • 8620 Karfe inji Properties

    Kadarorin tsarin awo na mallaka
    Tensile ƙarfi 530 MPa 76900 psi
    amfanin ƙasa ƙarfi 385 MPa 55800 psi
    na roba modulus 190-210 GPA 27557-30458 ksi
    Bulk modulus (hali na karfe) 140 GPA 20300 ksi
    Shear modulus (hali na karfe) 80 GPA 11600 ksi
    Poisson ta rabo 0.27-0.30 0.27-0.30
    Izod Impact 115 J 84,8 ft.lb
    Taurin, Brinell 149 149
    Taurin, Knoop (tuba daga Brinell taurin) 169 169
    Taurin, Rockwell B (tuba daga Brinell taurin) 80 80
    Taurin, Vickers (tuba daga Brinell taurin) 155 155
    Machinability (zafi birgima da sanyi kõma, bisa 100 machinability for Aisi 1212 karfe) 65 65

    5. Forging na Material 8620 Karfe

    Aisi


    8620 gami karfe da aka ƙirƙira a fara zazzabi na kusa 2250ºF
    (1230ºC) saukar zuwa kimanin 1700ºF (925ºC.) Kafin da hardening
    zafi magani ko carburizing. A gami shi ne iska sanyaya bayan sunã ƙirƙirãwa.

    6. ASTM 8620 Karfe Heat jiyya

    • Annealing

    Aisi


    8620 karfe iya ba cikakken anneal da zafi to 820 ℃ - 850 ℃, da kuma rike
    har zafin jiki ne uniform a ko'ina cikin sashe, kuma sanyi a makera
    ko iska sanyaya.

    • Tempering

    Tempering


    zafi bi da ruwa ta kasu sassa na 8620 steels (ba
    carburized) da aka yi a 400 F zuwa 1300 F don inganta yanayin tauri da
    kadan sakamako a kan ta daga bãyan wancan. Wannan zai rage da yiwuwar


    nika fasa.

    • hardening

    A


    Aisi karfe 8620 za a austenitized a kusa da 840 ° C - 870 ° C, da kuma man fetur
    ko ruwa ta kasu dangane bisa sashe size da kuma intricacy. Cool a Air


    ko Oil bukata.

    • maido da

    1675ºF


    (910ºC) da kuma iska mai sanyi. Wannan shi ne wani Hanyar inganta machinability


    a 8620 kayan. maido da zai ma a yi amfani kafin Case
    hardening.

    7. Machinability na Sae 8620 Karfe

    A


    8620 gami karfe da aka readily machined bayan zafi magani da kuma / ko
    carburizing, ya zama a mafi haka kada su rage da ƙẽƙashe
    hali na ɓangare. Machining iya yi da na al'ada wajen kafin
    zafi magani - bayan carburizing machining ne yawanci iyakance zuwa
    nika.

    8. Welding na 8620 Materials

    A
    gami 8620 iya welded kamar yadda birgima yanayin da al'ada hanyoyin,
    yawanci gas ko baka waldi. Preheating a 400 F ne m, kuma
    m dumama bayan waldi bada shawarar - tuntubi amince
    Weld hanya domin hanyar amfani. Duk da haka, waldi a cikin akwati
    ya taurare ko ta hanyar ƙẽƙashe yanayin da aka ba da shawarar

    9. Aikace-aikacen da ASTM 8620 Karfe

    Aisi


    8620 karfe kayan da ake amfani da baje by duk masana'antu sassa na
    haske zuwa matsakaici jaddada aka gyara da kuma shafts bukata high surface
    lalacewa juriya tare da m core ƙarfi da tasiri Properties.

    Hankula


    aikace-aikace ne: Arbors, bearings, Bushings, Cam Shafts, bambanci
    Pinions, Guide Fil, Sarki Fil, Pistons Fil, giya, Splined Shafts,
    Ratchets, Sleeves da kuma sauran aikace-aikace inda shi ne m zuwa da
    karfe cewa za ta iya daukar machined da kuma carburized zuwa sarrafawa hali
    zurfin.

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