Qhov txawv ntawm LR AH32 thiab LR AH36 steel phaj - Kev Paub

LR AH32 yog qhov siab dua - lub zog steel phaj ntawv pov thawj los ntawm Lloyd's Register (LR) rau kev tsim nkoj thiab kev siv dej hiav txwv. Qib "A" txhais tau hais tias nws muaj kev cuam tshuam los ntawm 0 degree, haum rau cov dej hiav txwv dav dav. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 315 MPa (46 ksi) thiab lub zog tensile xws li 440 txog 590 MPa (64-83 ksi), nrog qhov tsawg kawg nkaus elongation ntawm 22%. Nws cov tshuaj muaj pes tsawg leeg yog nruj me ntsis tswj nrog carbon Tsawg dua los yog sib npaug rau 0.18% thiab manganese 0.90-1.60%. Qib no yog siv dav rau cov qauv ntawm lub nkoj thiab cov khoom siv nkoj dav dav.

LR AH36 yog qhov siab dua - lub zog marine steel phaj kuj tau lees paub los ntawm Lloyd's Register (LR), nrog rau kev cuam tshuam toughness kuaj ntawm 0℃. Lub "36" qhia txog qhov tsawg kawg nkaus lub zog ntawm 355 MPa (51 ksi) thiab tensile lub zog ntawm 490 txog 620 MPa (71-90 ksi), nrog qhov tsawg kawg nkaus elongation ntawm 21%. Cov tshuaj muaj pes tsawg leeg zoo ib yam li AH32 nrog cov pa roj carbon tsawg dua lossis sib npaug li 0.18% thiab manganese 0.90-1.60%. Qib no yog tsim los rau kev thov cov qauv siv ntau dua hauv kev tsim cov nkoj thiab offshore platforms xav tau lub zog zoo dua.

Ob leeg LR AH32 thiab LR AH36 yog LR- ntawv pov thawj siab dua - lub zog marine steels nrog rau kev cuam tshuam toughness kuaj ntawm 0 degree, kom ntseeg tau tias kev ua tau zoo nyob rau hauv ib puag ncig marine. Lawv qhov sib txawv tseem ceeb nyob rau hauv lub zog theem: AH32 muaj qhov tsawg kawg nkaus lub zog ntawm 315 MPa nrog tensile lub zog ntawm 440-590 MPa, haum rau dav dav siab - lub zog hull siv, thaum AH36 muab qhov siab tshaj tawm lub zog ntawm 355 MPa nrog tensile lub zog ntawm kev thov mus txog 490 MPa. Ob qib tshwj xeeb tswj cov tshuaj muaj pes tsawg leeg nrog cov pa roj carbon tsawg dua lossis sib npaug li 0.18% thiab tswj cov weldability zoo rau kev pabcuam tseem ceeb hauv hiav txwv.

Tshuaj muaj pes tsawg leeg

LR AH32 siab zog tshuaj muaj pes tsawg leeg
Qib	Cov ntsiab lus Max (%)
Qib	C	Si	Mn	P	S	Al	N
LR AH 32	0.18	0.05	0.9-1.6	0.035	0.035	0.015
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02	0.35	0.20	0.40	0.08

LR AH36 siab zog tshuaj muaj pes tsawg leeg
Qib	Cov ntsiab lus Max (%)
Qib	C	Si	Mn	P	S	Al	N
LR AH 36	0.18	0.05	0.9-1.6	0.035	0.035	0.015
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02	0.35	0.20	0.40	0.08

Mechanical Property

LR AH32 siab zog khoom
Qib		Mechanical Property			Charpy V Impact Test
Qib	Thickness	Yield	Tensile	Elongation	Qib	Zog 1	Zog 2
LR AH 32	mm	Min Mpa	Mpa	Tsawg%	0	J	J
	t Tsawg dua lossis sib npaug li 50	315	440-590	22%		20	31
	50＜t Tsawg dua lossis sib npaug rau 70	315	440-590	22%		26	38
	70＜t Tsawg dua lossis sib npaug rau 100	315	440-590	22%		31	46
Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev

LR AH36 siab zog khoom
Qib		Mechanical Property			Charpy V Impact Test
Qib	Thickness	Yield	Tensile	Elongation	Qib	Zog 1	Zog 2
LR AH 36	mm	Min Mpa	Mpa	Tsawg%	0	J	J
	t Tsawg dua lossis sib npaug li 50	355	490-630	21%		24	34
	50＜t Tsawg dua lossis sib npaug rau 70	355	490-630	21%		27	41
	70＜t Tsawg dua lossis sib npaug rau 100	355	490-630	21%		34	50
Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev

Qhov sib txawv ntawm LR AH32 thiab LR AH36 steel phaj