I-AISI 8620 Steel

I-Alloy Steel 8620, ebuye ithengiswe njenge-AISI 8620, iqinile, i-carburizing, insimbi ephansi ye-alloy. Le alloy inikeza abasebenzisi ukuguquguquka okuvelele, ukumelana nokugqoka, kanye nokulula kokushisela ngokusebenzisa izindlela ezivamile.

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I-AISI 8620 Steeliyinsimbi eqinile ye-alloy, i-chromium, i-molybdenum case, ngokuvamile ehlinzekwa esimweni esigoqekile esinobukhulu obuqinile obungu-HB 255. Ivamise ukunikezwa ngebha eyindilinga engu-8620.

Iyavumelana nezimo phakathi nokwelashwa kokuqina, ngaleyo ndlela ivumele ukuthuthukiswa kwezakhiwo zecala/eziyinhloko. I-Pre hardened and tempered (uncarburized) 8620 ingaqhubeka iqiniswe yi-nitriding. Kodwa-ke, ngeke iphendule ngendlela egculisayo emalangabi noma ekuqinisweni kwe-induction ngenxa yokuqukethwe kwayo kwekhabhoni ephansi.

Insimbi 8620 ifanele izinhlelo zokusebenza ezidinga inhlanganisela yokuqina nokumelana nokuguga.

Sihlinzeka ngebha eyindilinga ye-AISI 8620 esimweni esijwayelekile esigoqiwe / Q+T /. I-diameter etholakalayo kusuka ku-20mm kuya ku-300mm ukuze ithunyelwe ngokushesha.

1. AISI 8620 Steel Supply Range

8620 Ibha Eyindilinga: ububanzi 8mm - 3000mm
I-8620 Steel Plate: ukujiya 10mm - 1500mm x ububanzi 200mm - 3000mm
8620 Ibha yesikwele: 20mm - 500mm
8620 amashubhu ayatholakala ngokumelene nesicelo sakho enemininingwane.
I-Surface Finish: Emnyama, Eyakhelwe Kalukhuni, Ephendukile noma ngokwezidingo ezinikeziwe.

Idatha yobuchwepheshe

2. Ukucaciswa kwensimbi ye-SAE 8620 kanye namazinga afanele

Izwe	USA	I-DIN	BS	BS	Japan
Okujwayelekile	I-ASTM A29	I-DIN 1654	I-EN 10084	BS970	I-JIS G4103
Amabanga	8620	1.6523/ 21NiCrMo2	1.6523/ 20NiCrMo2-2	805M20	I-SNCM220

3. ASTM 8620 Izinsimbi & Equilvalents Chemical Ukwakheka

Okujwayelekile	Ibanga	C	UMn	P	S	Si	Ni	Cr	Mo
I-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
I-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
I-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
I-JIS G4103	I-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
BS970	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 Steel Mechanical Properties

8620 Izakhiwo Zomzimba:

Ukuminyana (lb / cu. in.) 0.283
Specific Gravity 7.8
Ukushisa Okuthile (Btu/lb/Deg F – [32-212 Deg F]) 0.1
I-Melting Point (Deg F) 2600
I-Thermal Conductivity 26
Kusho Ukunwetshwa kwe-Coeff Thermal 6.6
I-Modulus ye-Elasticity Tension 31

8620 Steel Mechanical Properties

Izakhiwo	Imethrikhi	I-Imperial
Amandla aqinile	530 MPa	Idatha ye-76900
Amandla esivuno	385 MPa	55800 psi
I-Elastic module	190-210 GPA	27557-30458 ksi
I-Bulk modulus (ejwayelekile yensimbi)	140 GPA	20300 k
I-shear modulus (okujwayelekile kwensimbi)	80 GPA	11600 ksi
Isilinganiso sikaPoisson	0.27-0.30	0.27-0.30
I-Izod Impact	115 J	84.8 ft.lb
Ukuqina, Brinell	149	149
Ukuqina, i-Knoop (kuguqulelwe ku-Brinell hardness)	169	169
Ukuqina, i-Rockwell B (iguqulwe isuka kuBrinell hardness)	80	80
Ukuqina, uVickers (kuguqulwe kusuka kuBrinell hardness)	155	155
I-Machinability (i-hot rolling and cold drawn, esekelwe ku-100 machinability yensimbi ye-AISI 1212)	65	65

5. Ukwenziwa Kwezinto 8620 Zensimbi

I-AISI 8620 ingxubevange yensimbi yenziwa ekushiseni kokuqala okungaba ngu-2250ºF (1230ºC) phansi cishe ku-1700ºF(925ºC.) ngaphambi kokwelashwa kokushisa okuqinile noma ukungcwatshwa kwe-carburizing. Ingxubevange umoya opholile ngemva kokufoja.

6. I-ASTM 8620 Ukwelashwa Kokushisa Kwensimbi

Anealing

Insimbi ye-AISI 8620 ingase inikezwe i-aneal egcwele ngokushisa ku-820℃ - 850℃, futhi ibambe kuze kube yilapho izinga lokushisa lifana nengxenye yonke futhi liphole esithandweni noma emoyeni uphole.

Ukuthukuthela

Ukushisisa okulashwe ngokushisa kanye nezingxenye ezicinywe amanzi zama-steels angu-8620 (hhayi carburized) kwenziwa ku-400 F kuya ku-1300 F ukuze kuthuthukiswe ukuqina kwecala elinomphumela omncane ebulukhunini bawo. Lokhu kuzophinde kunciphise amathuba okugaya imifantu.

Ukuqina

I-AISI steel 8620 izoqinisekiswa cishe cishe ku-840 ° C - 870 ° C, futhi uwoyela noma amanzi acinywe ngokuya ngosayizi wesigaba nobunkimbinkimbi. Kudingeka Ukupholisa Emoyeni noma Ngamafutha.

Ukujwayela

1675ºF (910ºC) nomoya opholile. Lena enye indlela yokuthuthukisa machinability ezintweni ezingu-8620; normalizing ingase isetshenziswe ngaphambi kokuqina kwecala.

7. Ukusebenza kwe-SAE 8620 Steel

Insimbi ye-8620 alloy yenziwa kalula ngemuva kokwelashwa kokushisa kanye/noma i-carburizing, kufanele ibe okungenani ukuze ingalimazi icala eliqinile lengxenye. Ukucutshungulwa kungenziwa ngezindlela ezijwayelekile ngaphambi kokwelashwa kokushisa - ngemuva kokugaya imishini kuvame ukunqunyelwa ukugaya.

8. Welding of 8620 Materials

I-alloy 8620 ingase ishiselwe njengesimo esigoqiwe ngezindlela ezivamile, ngokuvamile igesi noma i-arc welding. Ukushisa kuqala ku-400 F kuyazuzisa futhi ukufudumeza okulandelayo ngemuva kokunconywa kwe-welding - thintana nenqubo ye-weld evunyelwe yendlela esetshenzisiwe. Kodwa-ke, i-welding ecaleni eliqinile noma ngesimo esiqinile akunconywa

9. Ukusetshenziswa kwe-ASTM 8620 Steel

Izinto zensimbi ze-AISI 8620 zisetshenziswa kakhulu yiyo yonke imikhakha yezimboni ukuze kube nokukhanya okuphakathi nendawo okugxilile kanye namashafu adinga ukumelana nokugqoka okuphezulu okunamandla ayisisekelo kanye nezakhiwo ezinomthelela.

Izinhlelo zokusebenza ezijwayelekile yilezi: Ama-Arbors, ama-Bearings, Bushings, Cam Shafts, Differential pinions, Guide pin, King pin, Pistons pin, Gears, Splined Shafts, Ratchets, Sleeves nezinye izinhlelo zokusebenza lapho kusiza khona ukuba nensimbi engashiswa kalula futhi. i-carburized to controlled case deep.

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