I-ASTM A131 Marine Steel Plate

Ipuleti lensimbi yasolwandle lisho insimbi yesakhiwo esetshenziswa ekwakheni umkhumbi. Kuthathwa njengebanga lasolwandle futhi kufanele ukwazi ukumelana nemiphumela elimazayo evamile endaweni enamanzi. Ukufeza lokhu, izakhi ezikhethekile ze-alloying zengezwa kulawa mabanga ukuze kuvikelwe ngokumelene nokugqwala. Nakuba insimbi ye-carbon eningi ingafaneleki endaweni yasolwandle, kunezinsimbi ze-carbon grade zasolwandle ezigunyazwe imiphakathi ehlukene ukuze kwenziwe izicelo zokwakha imikhumbi.

Insimbi yesakhiwo yemikhumbi yemikhumbi ihlukaniswe yaba izigaba zamandla ngokuvumelana namandla ayo amancane okukhiqiza: amandla ajwayelekile ensimbi yesakhiwo kanye nensimbi yesakhiwo esinamandla aphezulu. Ipuleti lensimbi ye-Maine libhekisela kupuleti lensimbi eligoqiwe elishisayo elikhiqizwa ngokuhambisana nezidingo zomphakathi we-classication wokwakhiwa kwezakhiwo zemikhumbi yemikhumbi. Izinsimbi eziqinile ezijwayelekile ze-China Classification Society zihlukaniswe ngamabanga amane ekhwalithi: A B D kanye no-E.

Kunemiphakathi engu-9 eyinhloko yokuhlukanisa emhlabeni wonke.
A.B.S    I-American Bureau of Shipping
B.V.     I-Bureau Veritas
C.C.S. I-China Classification Society
I-D.N.V   Det Norske Veritas
G.L.    Germanischer Lloyd
K.R. Irejista yaseKorea Yokuthumela
L.R. Irejista kaLloyd Yokuthumela
N.K. Nippon Kaiji Kyokai
R.I.N.A  Registro Italiano Navale

I-ASTM A131 iyibanga lesakhiwo sepuleti lensimbi elisetshenziswa cishe embonini yokwakha umkhumbi kuphela. Leli banga lichazwa njengamandla ajwayelekile anesivuno esincane esishiwo esingu-34KSI(235Mpa). Izicelo zihlanganisa izikebhe, izinto zasolwandle kanye nokwakhiwa kwemikhumbi. Lawa mabanga aphinde aqinisekiswe yi-American Bureau of Shipping(ABS)

Ukwakhiwa kwemikhumbi kuphakathi kobunikazi baseMelika futhi ubuhlakani baseMelika bukhanya emikhunjini yayo engaphansi kwamanzi, ezikebheni, emikhunjini yokuhamba ngomkhumbi, kanye nabathwali bezindiza. Imikhumbi emikhulu iqala ngepuleti lensimbi lezinga eliphezulu lasolwandle futhi i-Gnee iyaziqhenya ngokuhlinzeka imboni yezokwakha umkhumbi yaseMelika ngensimbi yasolwandle neyasogwini ekwazi ukumelana nokugqwala futhi eqinile, ebonisa ukuntenga okunciphile, ngisho emazingeni okushisa abandayo, namandla andayo okumelana nokuhlukumezeka kwamandla kanye ukudlidliza. Wonke amapuleti ethu ebanga lasolwandle ahlangabezana namazinga abekwe yi-ABS (American Bureau of Shipbuilding), ASTM, kanye ne-API (American Petroleum Institute). Singabahlinzeki abathembekile bensimbi yasolwandle ne-offshore steel emhlabeni wonke kanye nabakhi bemikhumbi besevisi

Imfuneko Yekhemikhali Yensimbi Yesakhiwo Yamandla Avamile

Isici	Ibanga A	Ibanga B	Ibanga D	Ibanga E	Ibanga CS
	I-Deoxidation kanye Nokuqina(t) ku-mm
	t>2.0 in(50mm)	t>2.0 in(50mm)	t>1.0 in(50mm)
C	0.21	0.21	0.21	0.18	0.16
Mn min	2.5XC	0.60	0.60	0.70	1.00
Si	0.50	0.35	0.10-0.35	0.10-0.35	0.10-0.35
P	0.035	0.035	0.035	0.035	0.035
S	0.035	0.035	0.035	0.035	0.035
Ni	-	-	-		-
Cr	-	-	-	-	-
Mo	-	-	-	-	-
Cu	-	-	-	-	-
C+Mn/6	0.40	0.40	0.40	0.40	0.40

Imfuneko Yekhemikhali Yensimbi Yesakhiwo Samandla Aphakeme

Isici	Ukwakheka kwamakhemikhali(ukuhlaziywa kokushisa% max
	AH/DH/EH32 AH/DH/EH36 kanye no-AH/DH/EH40	FH32/36/40
C	0.18	0.16
UMn	0.90-1.60	0.90-1.60
Si	0.10-0.50	0.10-0.50
P	0.035	0.025
S	0.035	0.025
Al min	0.015	0.015
Cb	0.02-0.05	0.02-0.05
V	0.05-0.10	0.05-0.10
Thi	0.02	0.02
Cu	0.35	0.35
Cr	0.20	0.20
Ni	0.40	0.40
Mo	0.08	0.08
N	-	0.009

Imfuneko ye-Tensile Yamandla-Ajwayelekile kanye Nensimbi Yesakhiwo Yamandla Aphakeme

Ibanga	I-Tensile Strength ksi(Mpa)	Yield Strength min ksi(Mpa)	Ubude ku-8 in (200mm)%	Ubude kumaminithi angu-2 ku-(50mm) %
Amandla avamile	58-75(400-520)	34(235)	21	24
A B D E CS
Amandla aphezulu
AH32 DH32 EH32 FH32	64-85(440-590)	46(315)	19	22
AH36 DH36 EH36 FH36	71-90(190-620)	51（355（	19	22
AH40 DH40 EH40 FH40	74-94（510-650）	57（390）	19	22