Qhov sib txawv ntawm LR EH46 thiab LR EH50 steel phaj

Dec 19, 2025 Tso lus

LR EH46 thiab LR EH50 yog ob qho tib si Lloyd's Register (LR) shipbuilding steel qib, nrog rau qhov sib txawv tseem ceeb yog lawv qib zog: EH50 muaj zog dua qhov tsawg tshaj plaws yield zog (500 MPa) thiab tensile zog (610-770 MPa) piv rau EH46 (72,5 MPa) {460 MPa} tensile), ua EH50 muaj zog dua, muaj zog steel rau ntau qhov kev thov ntawm cov qauv siv hauv nkoj, thaum EH46 yog cov qauv qib siab zog.

Tshuaj muaj pes tsawg leeg

LR EH46 ntxiv muaj zog Chemical Composition
Qib	Cov ntsiab lus Max (%)
Qib	C	Si	Mn	P	S	Al	N
LR EH46	0.20	0.55	1.70	0.030	0.030	0.015	0.020
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02

LR EH50 ntxiv muaj zog Chemical Composition
Qib	Cov ntsiab lus Max (%)
Qib	C	Si	Mn	P	S	Al	N
LR EH 50	0.20	0.55	1.70	0.030	0.030	0.015	0.020
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02

Mechanical Property

LR EH46 ntxiv cov khoom muaj zog
Qib		Mechanical Property			Charpy V Impact Test
Qib	Thickness	Yield	Tensile	Elongation	Qib	Zog 1	Zog 2
LR EH46	mm	Min Mpa	Mpa	Tsawg%	-40	J	J
	t Tsawg dua lossis sib npaug li 50	460	570-720	19%		31	46
	50＜t Tsawg dua lossis sib npaug rau 70	460	570-720	19%		31	46
	70＜t Tsawg dua lossis sib npaug rau 100	460	570-720	19%		31	46
Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev

LR EH50 muaj zog muaj zog ntxiv
Qib		Mechanical Property			Charpy V Impact Test
Qib	Thickness	Yield	Tensile	Elongation	Qib	Zog 1	Zog 2
LR EH 50	mm	Min Mpa	Mpa	Tsawg%	-40	J	J
	t Tsawg dua lossis sib npaug li 50	500	610-770	18%		33	50
	50＜t Tsawg dua lossis sib npaug rau 70	500	610-770	18%		33	50
	70＜t Tsawg dua lossis sib npaug rau 100	500	610-770	18%		33	50
Lus Cim: Lub Zog 1 yog qhov kev ntsuas cuam tshuam, Lub Zog 2 yog qhov ntev

LR Qib EH46:

Yield zog (min): 460 MPa

Tensile zog: 570-720 MPa

Elongation (min): 17%

Siv: Txheem siab -lub zog shipbuilding steel.

LR Qib EH50:

Yield zog (min): 500 MPa

Tensile zog: 610-770 MPa

Elongation (min): 16%

Hauv cov ntsiab lus: EH50 yog cov kwv tij muaj zog, muab kev tiv thaiv ntau dua rau deformation (yield ntau dua) thiab tawg (siab dua tensile) tshaj EH46, qhia los ntawm tus lej siab dua hauv nws lub npe (50 vs. 46).