AISI 4140 Alloy Steel

AISI 4140 Alloy Steel (UNS G41400)

Litšepe tsa alloy li khethoa ke AISI linomoro tse 'nè' me li na le mefuta e sa tšoaneng ea litšepe, e 'ngoe le e' ngoe e na le sebopeho se fetang meeli ea B, C, Mn, Mo, Ni, Si, Cr, le Va sete bakeng sa lisebelisoa tsa carbon.

AISI 4140 alloy steel ke chromium-, molybdenum-, le manganese-containing low alloy steel. E na le matla a phahameng a mokhathala, abrasion le ho hanyetsa tšusumetso, ho tiea, le matla a torsional. Lethathamo le latelang le fana ka kakaretso ea tšepe ea AISI 4140 alloy.

AISI 4140 Tšepe e lekanang

Naha	China	Japane	Jeremane	usa	Brithani
Standard	GB/T 3077	JIS G4105	DIN (W-Nr.) EN 10250	AISI/ASTM ASTM A29	BS970
Kereiti	42CrMo	SCM440	42crmo4/1.7225	4140	EN19/709M40

AISI 4140 motsoako oa lik'hemik'hale tsa tšepe

Kereiti	C	Si	Mong	P	S	Kr	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	-
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 mekhoa ea tšepe (bakeng sa tataiso feela)

Kereiti	Matla a tšepe σb(MPa)	Ho hlahisa matla σ (MPa)	Elongation δ5 (%)	Phokotso ψ (%)	Boleng ba Tšusumetso Akv (J)	Ho thatafala
4140	≥1080	≥930	≥12	≥45	≥63	28-32HRC

AISI 4140 kakaretso ea tšepe

Boholo	Ratoa	Bophahamo ba 6-1200 mm
	Plate/Flat/Thibela	Botenya 6mm-500mm
		Bophara 20mm-1000mm
Phekolo ea mocheso	Normalized ; Anealed ; E timiloe; Halefile
Boemo ba bokahodimo	Batsho; E peeled; E bentšitsoeng; E entsoe ka mochini; Ho sila; E retelehile; Milled
Boemo ba thomello	E entsoeng; Ho chesa; Mohatsela o hoheloa
Teko	Matla a mahlahahlaha, matla a tlhahiso, bolelele, sebaka sa phokotso, boleng ba tšusumetso, boima, boholo ba lijo-thollo, tlhahlobo ea ultrasonic, tlhahlobo ea US, tlhahlobo ea matla a khoheli, joalo-joalo.
Lipehelo tsa tefo	T/T;L/C;/kerama ea chelete/ Paypal
Lipehelo tsa khoebo	FOB; CIF; C&F; etc..
Nako ea thomello	Matsatsi a 30-45
Kopo	AISI 4140 tšepe e fumana lits'ebetso tse ngata e le lits'ebetso tsa lifofane, oli le khase, liindasteri tsa likoloi, tsa temo le tsa ts'ireletso jj. Lisebelisoa tse tloaelehileng tsa ts'ebeliso ea tšepe ea 4140 li kenyelletsa: likere tse betliloeng, li-spindle, lisebelisoa, li-jigs, li-collars, li-axles, likarolo tsa conveyor, mekoallo ea makhoaba, likarolo tsa ho rema lifate, li-shafts, li-sprockets, li-studs, li-pinions, li-pump shafts, lipheleu le li-ring gear joalo-joalo.

Thepa ea 'Mele

Thepa ea 'mele ea AISI 4140 alloy steel e totobatsoa tafoleng e latelang.

Thepa	Metric	Moemphera
Botenya	7.85 g/cm3	0.284 lb/in³
Sebaka se qhibilihang	1416°C	2580°F

Thepa ea Mechini

Tafole e latelang e hlalosa thepa ea mochini ea AISI 4140 alloy steel.

Thepa	Metric	Moemphera
Matla a tšepe	655 MPa	95000 psi
Ho hlahisa matla	415 MPa	60200 psi
Bulk modulus (e tloaelehileng bakeng sa tšepe)	140 GPA	20300 ksi
Shear modulus (e tloaelehileng bakeng sa tšepe)	80 GPA	11600 lik'hilograma
Elastic modulus	190-210 GPA	27557-30458 ksi
Karolelano ea Poisson	0.27-0.30	0.27-0.30
Elongation nakong ea khefu (ka 50 mm)	25.70%	25.70%
Thata, Brinell	197	197
Hardness, Knoop (e fetotsoe ho tsoa ho Brinell hardness)	219	219
Hardness, Rockwell B (e fetotsoe ho tloha ho Brinell hardness)	92	92
Hardness, Rockwell C (e fetotsoe ho tsoa ho Brinell hardness. Boleng bo ka tlase ho mefuta e tloaelehileng ea HRC, bakeng sa papiso feela)	13	13
Hardness, Vickers (e fetotsoe ho tloha ho Brinell hardness)	207	207
Machinability (e thehiloeng ho AISI 1212 joalo ka 100 machinability)	65	65

Thermal Properties

Thepa ea mocheso ea AISI 4140 alloy steel e fanoe tafoleng e latelang.

Thepa	Metric	Moemphera
Coefficient ea katoloso ea mocheso (@ 0-100°C/32-212°F)	12.2 µm/m°C	6.78 µin/in°F
Thermal conductivity (@ 100°C)	42.6 W/mK	296 BTU ho/hr.ft².°F

Likhetho tse ling

Litlhahiso tse ling tse lekanang le AISI 4140 alloy steel li thathamisitsoe tafoleng e latelang.

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

Thepa le Phekolo ea Mocheso

Boikemisetso

AISI 4140 alloy steel e na le machinability e ntle maemong a annealed.

Ho theha

AISI 4140 alloy steel e na le ductility e phahameng. E ka thehoa ho sebelisoa mekhoa e tloaelehileng ea boemo ba annealed. E hloka khatello kapa matla a mangata bakeng sa ho theha hobane e thata ho feta litšepe tsa carbon tse hlakileng.

Welding

AISI 4140 alloy steel e ka chesetsoa ka mekhoa eohle e tloaelehileng. Leha ho le joalo, thepa ea mechine ea tšepe ena e tla ameha haeba e cheselitsoe boemong ba mocheso, 'me phekolo ea mocheso oa post-weld e lokela ho etsoa.

Kalafo ea Mocheso

AISI 4140 alloy steel e futhumatsoa ka 845 ° C (1550 ° F) e lateloa ke ho tima ka oli. Pele e thatafala, e ka tloaeleha ka ho e futhumatsa ka 913 ° C (1675 ° F) ka nako e telele, e lateloa ke ho pholisa moea.

Ho qapa

AISI 4140 alloy tšepe e entsoe ka 926 ho 1205 ° C (1700 ho 2200 ° F)

Hot Working

AISI 4140 alloy steel e ka chesa e sebetsa ho 816 ho 1038 ° C (1500 ho 1900 ° F)

Cold Ho sebetsa

AISI 4140 alloy steel e ka sebetsa ka mokhoa o batang ho sebelisoa mekhoa e tloaelehileng maemong a annealed.

Annealing

AISI 4140 alloy steel e kenngoa ka 872 ° C (1600 ° F) e lateloa ke ho pholile butle ka sebōping.

Ho halefisa

AISI 4140 alloy steel e ka halefisoa ho 205 ho 649 ° C (400 ho 1200 ° F) ho latela boemo ba boima bo lakatsehang. Ho thatafala ha tšepe ho ka eketseha haeba ho na le mocheso o fokolang oa mocheso. Ka mohlala, matla a tensile a 225 ksi a ka finyelloa ka ho futhumatsa ho 316 ° C (600 ° F), 'me matla a ho tsitsa a 130 ksi a ka finyelloa ka ho futhumatsa ho 538 ° C (1000 ° F).

Ho thatafatsa

AISI 4140 alloy steel e ka thatafatsoa ke ho sebetsa ha serame, kapa ho futhumatsa le ho tima.