1045 carbon hlau

TIAB SA 1045carbon steel nrog cov ntsiab lus hauv qab daim ntawv:

Txuj No.	Alloy No.	Chemical compositions (%)
		C	Cr	Mn	Ni	P	S	Si
GB/T 699-1999	AISI 1045/S45C	0.42~0.50	Tsawg dua lossis sib npaug rau 0.25	0.50~0.80	Tsawg dua lossis sib npaug rau 0.25	Tsawg dua lossis sib npaug rau 0.035	Tsawg dua lossis sib npaug rau 0.035	0.17~0.37
	Neeg kho tshuab Khoom	Tensile zog (Mpa)		Yeild zog (Mpa)		Elongation (%)		Kev cog lus ntawm cheeb tsam Z (%)
		Ntau dua lossis sib npaug li 600		Ntau dua lossis sib npaug rau 355		Ntau dua lossis sib npaug li 16		Ntau dua lossis sib npaug li 40

Kev sib raug zoo ntawm cov khoom thiab tsis-S45C (JIS)-SAE1045 (Aisi)-SM45 ntawm 1045 steel (45 steel) tau kawm:
1045 carbon steel yog carbon structural steel nrog 0.45% carbon ntsiab lus. Nws yog tus cwj pwm los ntawm tus nqi qis, kev ua tau zoo txiav, siab hardness tom qab quenching, zoo zog, toughness thiab hnav tsis kam tom qab quenching thiab temperingtreatment, yog dav siv nyob rau hauv manufacturing structural partsand low-grade yas pwm. "45 steel" yog ib lub npe nrov, cov cim feem ntau sau ua "45 #". Qhov tseeb GB standardteel tooj yog "45", nws tsis yog tus lej sib txuas, nyeem raws li "45steel" tsis yog qhov tseeb. Cov khoom xyaw code 45 steels uas zoo sib xws yog S45C (JIS) thiab 1045 (Aisi). Tsis tas li ntawd, peb lub teb chaws metallurgical thev naus laus zis tus qauv muaj SM45 brandnumber los nthuav qhia cov yas pwm siv tshwj xeeb. Piv nrog 45 steel, SM45 muaj qis phosphorus thiab sulfur cov ntsiab lus thiab zoo dua hlau purity.

Cov qauv	TIAB SA 094	AISI	JIS G4051
Alloy No.	SIB 45	1045	S45C
C	0.42-0.48	0.43-0.50	0.42-0.48
Si	0.17-0.37		0.15-0.35
Mn	0.50-0.80	0.60-0.90	0.60-0.90
P	<0.030	<0.030	<0.030
S	<0.035	<0.035	<0.035

Cov txheej txheem pom zoo rau kev kho cua sov thiab hardness: quenching kub 820 - 860" C, dej-oroil-txias, hardness 250 HRC. Pom zoo tempering pro-cess specifcation: tempering kub yog 500 - 560" C, aircooling, hardness yog 25 - 33HRC. Tempering nyob rau hauv qhov kub thiab txias yog qhov kev kho mob tempering, quenching thiab tempering ua rau lub zog, plasticity thiab toughness ntawm 45 steel txais ib tug zoo tshuav nyiaj li cas, cov kev ua tau zoo yog zoo, tuaj yeem hloov mus rau lwm qhov chaw thauj khoom. Tom qab quench-ing thiab tempering, qhov hardness ntawm 1045 carbon steel yog tsawg thiab tsis hnav zoo. Yog li feem ntau siv quenching thiab tempering + nto quenching los txhim kho qhov nyuaj ntawm qhov chaw.

Tempering kub	Tom qab quenching	Chav ntsuas centigrade
		200	300	400	500	550	600
Hardness HRC	57	55	50	41	33	26	22

Mechanical zog (GB/T 699-1999)
Qauv loj		mm	25
Kev kho cua sov tau pom zoo	normalizing	ºC	850
	Quenching	ºC	840
	Tempering	ºC	600
Mechanical zog	Tensile zog	Mpa	Ntau dua lossis sib npaug li 600
	Muaj zog tawm los	Mpa	Ntau dua lossis sib npaug rau 355
	Elongation	Mpa	Ntau dua lossis sib npaug li 16
	Section shrinkago	Mpa	Ntau dua lossis sib npaug li 40
	Kev cuam tshuam	Mpa	Ntau dua lossis sib npaug li 39
Hardness ntawm kev xa khoom		HB	Tsawg dua lossis sib npaug li 229
		HB	Tsawg dua lossis sib npaug li 197