AISI 4140 Alloy Karfe

AISI 4140 Alloy Karfe (UNS G41400)

Alloy steels an tsara su ta hanyar lambobin lambobi huɗu na AISI kuma sun ƙunshi nau'ikan ƙarfe daban-daban, kowanne tare da abun da ke ciki wanda ya wuce iyakokin B, C, Mn, Mo, Ni, Si, Cr, da Va da aka saita don karafa na carbon.

AISI 4140 gami karfe ne chromium-, molybdenum-, da manganese-dauke da low gami karfe. Yana da ƙarfin gajiya mai ƙarfi, abrasion da juriya mai tasiri, tauri, da ƙarfin torsional. Takardar bayanan mai zuwa yana ba da bayyani na AISI 4140 alloy karfe.

AISI 4140 Madaidaicin Karfe

Ƙasa	China	Japan	Jamus	Amurka	Birtaniya
Daidaitawa	GB/T 3077	Saukewa: G4105	DIN (W-Nr.) EN 10250	AISI/ASTM ASTM A29	Farashin BS970
Daraja	42CrMo	Saukewa: SCM440	42crmo4 /1.7225	4140	EN19/709M40

AISI 4140 haɗin sinadaran ƙarfe

Daraja	C	Si	Mn	P	S	Cr	Mo	Ni
42CrMo	0.38-0.45	0.17-0.37	0.5-0.80	≤0.035	≤0.035	0.9-1.2	0.15-0.25	-
Saukewa: SCM440	0.38-0.43	0.15-0.35	0.6-0.85	≤0.035	≤0.04	0.9-1.2	0.15-0.30	-
42crmo4 /1.7225	0.38-0.45	≤ 0.4	0.6-0.9	≤0.025	≤0.035	0.9-1.2	0.15-0.30	-
4140	0.38-0.43	0.15-0.35	0.75-1.00	≤0.035	≤0.04	0.8-1.1	0.15-0.25	-
EN19/709M40	0.35-0.45	0.15-0.35	0.5-0.80	≤0.035	≤0.035	0.9-1.5	0.2-0.40	-

AISI 4140 kayan kayan aikin ƙarfe (don jagora kawai)

Daraja	Ƙarfin ƙarfi σb (MPa)	Ƙarfin bayarwa σs (MPa)	Tsawaitawa δ5 (%)	Ragewa ψ (%)	Ƙimar Tasiri Akv (J)	Tauri
4140	≥ 1080	≥930	≥12	≥45	≥63	28-32HRC

AISI 4140 tallafin ƙarfe

Girman	Zagaye	Tsawon 6-1200 mm
	Plate /Flat/Toshe	Kauri 6mm-500mm
		Nisa 20mm-1000mm
Maganin zafi	An daidaita; Annealed; An kashe ; Haushi
Yanayin saman	Baƙar fata; Bawon; goge; Injin; Nika; Juya; Milled
Yanayin bayarwa	Jarumi; Zafafan birgima; Zane sanyi
Gwaji	Ƙarfin ƙarfi, Ƙarfin Haɓaka, elongation, yanki na raguwa, ƙimar tasiri, taurin, girman hatsi, gwajin ultrasonic, binciken Amurka, gwajin ƙwayar magnetic, da dai sauransu.
Sharuɗɗan biyan kuɗi	T/T;L/C;/Kudi gram/ Paypal
Sharuɗɗan ciniki	FOB; CIF; C&F; da dai sauransu.
Lokacin bayarwa	30-45 kwanaki
Aikace-aikace	AISI 4140 karfe sami da yawa aikace-aikace a matsayin forgings ga Aerospace, mai da gas, mota, aikin gona da tsaro masana'antu da dai sauransu Hankula aikace-aikace na 4140 karfe amfani sun hada da: jabu gears, spindles, gyarawa, jigs, kwala, Axles, conveyor sassa, hankaka sanduna, shiga sassa, shafts, sprockets, studs, pinions, famfo shafts, raguna, da zobe gears da dai sauransu

Abubuwan Jiki

Abubuwan halayen jiki na AISI 4140 gami da ƙarfe an haskaka su a cikin tebur mai zuwa.

Kayayyaki	Ma'auni	Imperial
Yawan yawa	7.85 g /cm3	0.284 lb / in³
Wurin narkewa	1416°C	2580°F

Kayayyakin Injini

Tebur mai zuwa yana fayyace kaddarorin inji na AISI 4140 gami karfe.

Kayayyaki	Ma'auni	Imperial
Ƙarfin ƙarfi	655 MPa	95000 psi
Ƙarfin bayarwa	415 MPa	60200 psi
Modules mai girma (na al'ada don karfe)	140 GPA	20300 ku
Shear modulus (na al'ada don karfe)	80 gpa	11600 ku
Na roba modules	190-210 GPA	27557-30458 ksi
Rabon Poisson	0.27-0.30	0.27-0.30
Tsawon lokacin hutu (a cikin 50 mm)	25.70%	25.70%
Hardness, Brinell	197	197
Hardness, Knoop (an juyo daga taurin Brinell)	219	219
Hardness, Rockwell B (an juyo daga taurin Brinell)	92	92
Hardness, Rockwell C (an juyo daga taurin Brinell. Ƙimar da ke ƙasa da kewayon HRC na al'ada, don dalilai na kwatanta kawai)	13	13
Hardness, Vickers (an juyo daga taurin Brinell)	207	207
Machinability (dangane da AISI 1212 azaman 100 machinability)	65	65

Thermal Properties

Ana ba da kaddarorin thermal na AISI 4140 gami da ƙarfe a cikin tebur mai zuwa.

Kayayyaki	Ma'auni	Imperial
Ƙididdigar faɗaɗawar thermal (@ 0-100°C/32-212°F)	12.2µm/m°C	6.78 µin / in°F
Ƙarƙashin zafi (@ 100°C)	42.6 W / mK	296 BTU a cikin /hr.ft².°F

Sauran Nazari

Sauran nadi daidai da AISI 4140 gami karfe an jera su a cikin tebur mai zuwa.

Farashin 6349	ASTM A193 (B7, B7M)	ASTM A506 (4140)	ASTM A752 (4140)
Farashin 6381	ASTM A194 (7, 7M)	ASTM A513	Saukewa: ASTM A829
Farashin 6382	ASTM A29 (4140)	ASTM A513 (4140)	SAE J1397 (4140)
Farashin 6390	ASTM A320 (L7, L7M, L7D)	ASTM A519 (4140)	SAE J404 (4140)
Farashin 6395	ASTM A322 (4140)	ASTM A646 (4140)	SAE J412 (4140)
Farashin 6529	ASTM A331 (4140)	ASTM A711

Kerawa da Maganin Zafi

Injin iya aiki

AISI 4140 alloy karfe yana da kyau machinability a cikin annealed yanayin.

Samar da

AISI 4140 gami karfe yana da babban ductility. Ana iya kafa shi ta amfani da fasaha na al'ada a cikin yanayin da aka shafe. Yana buƙatar ƙarin matsi ko ƙarfi don kafawa saboda ya fi ƙarfin karafa na carbon.

Walda

AISI 4140 gami karfe za a iya welded ta amfani da duk na al'ada dabaru. Duk da haka, kayan aikin injiniya na wannan karfe za su yi tasiri idan an haɗa shi a cikin yanayin zafi, kuma ya kamata a yi maganin zafi bayan walda.

Maganin zafi

AISI 4140 gami karfe yana mai zafi a 845°C (1550°F) sannan a kashe mai. Kafin taurin, ana iya daidaita shi ta hanyar dumama shi a 913°C (1675°F) na dogon lokaci, sannan sanyaya iska.

Ƙirƙira

AISI 4140 karfen ƙarfe an ƙirƙira shi a 926 zuwa 1205°C (1700 zuwa 2200°F)

Zafafan Aiki

AISI 4140 gami karfe na iya yin zafi aiki a 816 zuwa 1038°C (1500 zuwa 1900°F)

Cold Aiki

AISI 4140 gami karfe za a iya yi sanyi aiki ta amfani da na al'ada hanyoyin a cikin annealed yanayin.

Annealing

AISI 4140 gami da karfe ana goge shi a 872°C (1600°F) sannan kuma a hankali sanyaya a cikin tanderun.

Haushi

AISI 4140 gami karfe za a iya zafinsa a 205 zuwa 649°C (400 zuwa 1200°F) dangane da taurin da ake so. Za a iya ƙara ƙarfin ƙarfe idan yana da ƙananan zafin jiki. Misali, ana iya samun ƙarfin juzu'i na 225 ksi ta yanayin zafi a 316°C (600°F), kuma ana iya samun ƙarfin ƙarfi na 130 ksi ta yanayin zafi a 538°C (1000°F).

Taurare

AISI 4140 gami karfe za a iya taurare ta sanyi aiki, ko dumama da quenching.