SAE4340 40CrNiMoA Alloy enweghị nkebi ígwè ọkpọkọ

SAE4340 40CrNiMoA Alloy enweghị nkebi igwe anwụrụ onyonyo

Nkọwa dị mkpirikpi:

40CrNiMoA alloy enweghị nkebi ígwè ọkpọkọ bụ a elu-ike, elu-si ike alloy structural ọkpọkọ.Ihe mejupụtara ya na-agụnye chromium, nickel, molybdenum na obere carbon, silicon, manganese na ihe ndị ọzọ, site na oke kpọmkwem na usoro ọgwụgwọ okpomọkụ, ọ nwere ezigbo nguzogide corrosion na oke okpomọkụ.N'ihi njirimara ọrụ ya dị mma na mpaghara ngwa ngwa, ejirila ya mee ihe n'ọtụtụ ụlọ ọrụ.

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Nkọwa ngwaahịa

Mkpado ngwaahịa

Ngosipụta ngwaahịa

Okwu Mmalite ngwaahịa

Ngwakọta kemịkalụ

C	Si	Mn	S	P	Cr	Ni	Cu	Mo
0.37-0.44	0.17-0.37	0.50-0.80	≤0.025	≤0.025	0.60-0.90	1.25-1.65	≤0.25	0.15-0.25

Ihe eji arụ ọrụ

Ike tensile σb (MPa)	Mpụta Ike σs (MPa)	Mgbatị δ5 (%)	Mmetụta ike Akv (J)	Mbelata nke ngalaba ψ (%)	uru ike ike mmetụta αkv (J/cm2)	Isi ike HBW
980 (100)	835 (85)	≥12	≥78	≥55	98 (10)	≤269

Ubi ngwa

1. N'ime ụlọ ọrụ petrochemical, enwere ike iji ya na-emepụta ihe ndị dị mkpa dị ka ụgbọ mmiri dị elu, ndị na-emepụta ihe, ndị na-ekpo ọkụ ọkụ, wdg, nke nwere ike iguzogide mmetụta nke okpomọkụ dị elu, nrụgide dị elu na mgbasa ozi na-emebi emebi.

2. N'ime ụlọ ọrụ eletriki eletrik, enwere ike iji ya mepụta ihe ndị na-emepụta ihe maka ndị na-emepụta ihe na-emepụta ihe, ndị na-ekpo ọkụ ọkụ, steam turbin na ngwá ọrụ ndị ọzọ, nke nwere ike iguzogide ibu dị elu na ọnọdụ ọrụ okpomọkụ.

3. N'ebe aerospace, enwere ike iji ya mepụta ihe ndị dị mkpa dị ka ụgbọ elu ụgbọ elu na ihe nhazi fuselage iji melite nchekwa na arụmọrụ nke ụgbọ elu.

Na mgbakwunye, enwere ike iji ọkpọkọ ígwè 40CrNiMoA rụpụta ihe ndị dị mkpa na ụgbọ ala, ụgbọ mmiri, ụgbọ oloko na ụlọ ọrụ ndị ọzọ iji melite ogo ngwaahịa na ntụkwasị obi.

Nkọwapụta ọgwụgwọ okpomọkụ

Igwe ọkụ na-ekpo ọkụ: 850 ºC;oyi: mmanụ;okpomọkụ okpomọkụ: 600ºC;coolant: mmiri, mmanụ.

Ọnọdụ nnyefe

Nnyefe na ọgwụgwọ okpomọkụ (normalizing, annealing or high okpomọkụ tempering) ma ọ bụ enweghị ọnọdụ ọgwụgwọ okpomọkụ, ọnọdụ nnyefe ga-egosi na nkwekọrịta.

Nke gara aga: Igwe igwe ọla kọpa ọla kọpa nke alumini

Osote:ASTM SAE8620 20CrNiMo Alloy Alloy Steel Pipe