45 # kub dov steel ntawv

Cov txheej txheem kev kho cua sov pom zoo rau 45 steel teev hauv GB / T699-1999 tus qauv yog normalizing ntawm 850 ° C, quenching ntawm 840 ° C, thiab tempering ntawm 600 ° C. Qhov kev ua tau zoo yog cov khoom muaj zog ≥355MPa
GB/T699-1999 tus qauv qhia tias lub zog tensile ntawm 45 steel yog 600MPa, lub zog tawm los yog 355MPa, qhov elongation tus nqi yog 16%, thiab txo qhov cheeb tsam yog 40%.
Daim ntawv thov
No. 45 steel yog dav siv nyob rau hauv machinery, thaum nws tsis kho cua sov: HB≤229; Kev kho cua sov: normalizing; cuam ​​tshuam lub zog: Aku≥39J; siab zog, zoo plasticity thiab toughness, 45 # steel phaj tom qab quenching tsis tempering, lub hardness yog ntau tshaj HRC55 (Txog HRC62) yog tsim nyog. Tom qab kev kho cua sov thiab tempering, nws tuaj yeem ncav cuag HRC42-46, uas tuaj yeem tsis tsuas yog ua kom nws cov khoom siv zoo, tab sis kuj tau txais cov kev xav tau ntawm qhov tawv. Nws yog siv los ua cov kev hloov me me uas tuaj yeem tiv taus cov khoom loj. Qhov zoo thiab qhov loj me me uas tsis tshua muaj kev ntxhov siab, nrog rau qhov chaw tawv tawv uas tsis tas yuav tsum muaj lub zog tseem ceeb, xws li cov lus qhia, cov lus qhia, saib tes thiab lwm yam khoom.

Khoom siv:	forged square steel bar
Txoj kab uas hla:	100mm-1000mm
Ntev:	2000mm-12000mm Ncaj: 3mm / M max; square bar.100-1000mm, blocks qhov ntau thiab tsawg mus txog 800 * 1000mm
Txheej txheem:	EAF + LF + VD + Forged + Kev kho cua sov (yeem)
Delivery condition:	Kub forged + Rough machined (dub nto tom qab Q/T) + Tig (yeem)
Lub sij hawm xa tuaj:	30-45 hnub
MOQ:	20 ton
Kev kho cua sov:	Normalized / Annealed / Quenched / tempered
Forged ratio:	tsis tsawg tshaj li 3:1
Technical Data:	Raws li cov neeg siv khoom xav tau ntawm Cov Khoom Siv Tshuaj, Lub Cev Khoom thiab Kev Ntsuas Kev Ntsuas
Kuaj:	Ultrasonic xeem raws li SEP 1921-84 G3 C / c
Marking:	Qib, kub NO. ntev yuav raug stamped ib qho bar nrog cov xim xav tau
Kev Them Nyiaj:	30% ua ntej los ntawm TT; Qhov nyiaj tshuav them ua ntej xa khoom tawm tsam cov ntaub ntawv xa khoom lossis tsis tuaj yeem thim rov qab LC thaum pom
Daim ntawv thov:	Statically thiab dynamically stressed Cheebtsam rau tsheb, cav thiab tshuab. Rau qhov chaw ntawm qhov loj hla ntu, crankshafts, iav.

Qib	Dia (mm)	C	Si	Mn	P	S	Ni	Cu	Cr
20	18-600	0.17-0.23	0.17-0.37	0.35-0.65	≤ 0.035	≤ 0.035	≤ 0.30	≤ 0.25	≤ 0.25
45	20-600	0.42-0.50	0.17-0.37	0.35-0.65	≤ 0.035	≤ 0.035	≤ 0.30	≤ 0.25	≤ 0.25

Mechanical zog

Yield zog σs/MPa (>=)	Tensile zog σb / MPa (> =)	Elongation δ5/% (>=)	Txo ntawm thaj tsam ψ/% (>=)	Hardness HBS
≥355	≥600	≥16	≥40	≤197

Cov yam ntxwv ntawm C45 steel

1, Nruab nrab carbon structural steel

2, Siab zog thiab machinability

3, Zoo toughness, plasticity thiab abrasion kuj

4, Feem ntau siv nyob rau hauv quenched thiab tempered los yog normalized tej yam kev mob

4, Cov ntawv thov zoo

1, Dav siv nyob rau hauv tshuab manufacturing

2, Rau cov ncej

3, Stamping tuag kos qhov chaw kho thiab hardfacing