ASTM SAE8620 20CrNiMo Alloy Seamless Steel Pipe

Tsanangudzo Pfupi

20CrNiMo ndeyemhando yepamusoro alloy dhizaini simbi ine yakanakisa mechaniki zvivakwa, corrosion kuramba uye kupfeka kuramba.Inoshandiswa zvakanyanya mumakina, mainjiniya, kuvaka uye kuchengetedza nharaunda.Simba rayo rakakwirira, kusimba kwakanaka uye ductility zvinogonesa kuchengetedza hupenyu hurefu hwebasa munzvimbo dzakaoma uye kutsungirira mitoro yakakwira, ichipa rutsigiro rwakasimba rwekusimudzira indasitiri yemazuva ano uye mainjiniya.


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Kuumbwa Kwemakemikari

C

Si

Mn

S

P

Cr

Ni

Mo

Cu

0.17~0.23

0.17~0.37

0.60~0.95

≤0.035

≤0.035

0.40~0.70

0.25~0.75

0.20~0.30

≤0.30

Mechanical Properties

Tensile Simbaσb (MPa)

Goho Simbaσ (MPa)

Elongationδ5 (%)

Impact simba  Akv (J)

Kuderera kwechikamu ψ (%)

Impact kuoma kukosha αkv (J/cm2)

KuomaHB

980(100)

785(80)

9

47

40

≥59(6)

197

20CrNiMo Alloy Seamless Simbi Pipe

20CrNiMo pakutanga yaive simbi nhamba 8620 muAmerican AISI uye SAE zviyero.Iko kuoma kwekuita kwakafanana neiyo ye20CrNi simbi.Kunyange zvazvo Ni content musimbi iri hafu ye20CrNi simbi, nekuda kwekuwedzerwa kwechikamu chiduku cheMo element, chikamu chepamusoro che austenite isothermal shanduko yekushandura inoenda kurudyi;uye nekuda kwekuwedzera kwakakodzera kweMn content, kuoma kwesimbi iyi kuchiri kwakanaka kwazvo, uye simba Izvo zvakare yakakwirira kudarika 20CrNi simbi, uye inogonawo kutsiva 12CrNi3 simbi yekugadzira carburized parts uye cyanide zvikamu zvinoda kushanda kwepamusoro kwepakati.20CrNiMo inogona kumira kumwe tembiricha mukuwedzera kune yakanaka yakazara zvivakwa nekuti ine molybdenum.

Munda Wekushandisa

1. Muindasitiri yekugadzira, inowanzoshandiswa kugadzira zvikamu zvinotarisana nekuremerwa kwakanyanya, kushushikana kwakanyanya, uye kupfeka kwakanyanya, senge magiya, shafts, mabhengi, nezvimwe. Simba ravo rakakura uye kusimba kwakanaka kunoita kuti zvikamu izvi zvichengetedze a hupenyu hurefu hwebasa munzvimbo dzekushanda dzakaoma.Uye zvakare, ine zvakare yakanakisa kuneta kuramba uye corrosion kuramba, iyo inogona kunyatso kurwisa kukukurwa kwekunze kwezvakatipoteredza uye kuve nechokwadi chekushanda kwakagadzikana kwemidziyo.

2. Mumunda wekuvaka, iyi simbi inoshandiswa zvakanyanya pakuvaka zvivako zvakakura zvakadai semabhiriji uye zvivako zvepamusoro nekuda kwesimba rayo uye ductility yakanaka.Mune zvimiro izvi, vanogona kumira kumanikidzwa kukuru uye kushushikana, kuve nechokwadi chekuchengetedza uye kugadzikana kwechivako.

3. Mukuwedzera, nekuvandudzwa kwekuziva kwezvakatipoteredza, zvikumbiro mumunda wekuchengetedzwa kwezvakatipoteredza zviri kuwedzera kuwedzera.Semuenzaniso, mumotokari nyowani dzemagetsi, inogona kushandiswa kugadzira zvakakosha zvinhu zvakaita semotor uye zvinoderedza, zvichibatsira pakufamba kwegirinhi.Inoitawo basa rakakosha mumidziyo yekudzivirira kwezvakatipoteredza senge kurapa kwetsvina uye marara gasi kurapwa, kupa rutsigiro rwakasimba rwekuvandudza kunaka kwezvakatipoteredza.

Minda Yekushandisa

1. Zvimiro zvakakosha, senge giya rekumhara ndege, matangi uye zvikamu zvemotokari dzehondo.

2. High-simba fasteners uye connectors.

3. High load gears uye mabheya.

Heat Treatment Specification

 

Kubvisa 850ºC, kutonhora kwemafuta;Temper 200ºC, kutonhora kwemhepo.

 

Delivery Status

Kuendeswa mukupisa kwekupisa (normalizing, annealing kana high temperature tempering) kana kuti hapana mamiriro ekurapa kwekupisa, mamiriro ekutumira acharatidzwa muchibvumirano.

 


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