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ASTM A131 Giredhi A/B Marine Steel plate
ASTM A131 Giredhi A/B Marine Steel plate
ASTM A131 Giredhi A/B Marine Steel plate
ASTM A131 Giredhi A/B Marine Steel plate

ASTM A131 Giredhi A/B Marine Steel plate

ASTM A131 igiredhi rekuumbwa resimbi ndiro rinoshandiswa chete muindasitiri yekuvaka ngarava. Giredhi iri rinotsanangurwa sesimba rakajairwa rine goho rakaderera re34KSI(235Mpa). Zvikumbiro zvinosanganisira mabhaji, midziyo yemugungwa uye kuvaka ngarava. Aya mamakisi anosimbiswa zvakare neAmerican Bureau of Shipping (ABS)
Kupfupisa kusuma kwemarine simbi ndiro uye A131 yakajairika simba
Marine steel plate inoreva simbi yezvimiro inoshandiswa mukuvaka ngarava. Inoonekwa segiredhi remugungwa uye inofanirwa kukwanisa kurwisa zvinoparadza zvinowanzoitika munzvimbo yemvura. Kuti izvi zviitike, maalloying akakosha anowedzerwa kumagiredhi aya kuitira kudzivirira agaist corrosion.Nepo simbi zhinji yekabhoni isingakodzere nharaunda dzemugungwa, kune akati wandei egiredhi kabhoni simbi dzemugungwa dzakatenderwa nemasangano akasiyana ekushandisa kuvaka ngarava.

Simbi yekugadzira yezvikepe zvengarava yakakamurwa kuita makirasi esimba zvichienderana neayo mashoma goho simba: general simba structural simbi uye yakakwirira simba structural simbi. Maine simbi ndiro inoreva inopisa yakakungurutswa simbi ndiro inogadzirwa zvinoenderana nezvinodiwa zveClassication nzanga yekuvaka ngarava hull zvimiro. Iyo yakawanda simba simbi s yeChina Classification Society yakakamurwa kuita mana emhando mamaki: A B D uye E.

Kune 9 masangano makuru emapoka pasi rose.
A.B.S    American Bureau of Shipping
B.V.    Bureau Veritas
C.C.S. China Classification Society
D.N.V   Det Norske Veritas
G.L.    Germanischer Lloyd
K.R. Korean Register yeShipping
L.R. Lloyd's Register yeShipping
N.K. Nippon Kaiji Kyokai
R.I.N.A  Registro Italiano Navale

ASTM A131 igiredhi rekuumbwa resimbi ndiro rinoshandiswa chete muindasitiri yekuvaka ngarava. Giredhi iri rinotsanangurwa sesimba rakajairwa rine goho rakaderera re34KSI(235Mpa). Zvikumbiro zvinosanganisira mabhaji, midziyo yemugungwa uye kuvaka ngarava. Aya mamakisi anosimbiswa zvakare neAmerican Bureau of Shipping (ABS)

Iyi dhizaini inovhara zvimiro zvesimbi mahwendefa, zvimiro, mabara uye rivets zvakagadzirirwa kunyanya kushandiswa mukuvaka ngarava.
Simba remazuva ose- Giredhi A B D CS uye E ine chidimbu chakatarwa chegoho re34 ksi(235MPa)


Kuvaka zvikepe kuri pakati pekuzivikanwa kweAmerica uye hunyanzvi hweAmerica hunopenya mungarava dzayo dzepasi pemvura, ma yachts, ngarava dzekufamba, uye vatakuri vendege. Ngarava huru dzinotanga nemhando yepamusoro yesimbi yegiredhi remugungwa uye Gnee inodada nekupa iyo indasitiri yekuvaka ngarava yekuAmerica nesimbi yemugungwa neyekunze kwemahombekombe isingaore uye yakasimba, ichiratidza kuderera kwehutete, kunyangwe mukutonhora, uye kuwedzera simba rekuramba kushungurudzwa kwechisimba uye. vibration. Yese yedu yegiredhi giredhi ndiro inosangana nezviyero zvakatarwa neABS (American Bureau of Shipbuilding), ASTM, uye API (American Petroleum Institute). Isu tiri mutengesi akavimbika wemugungwa & offshore simbi ndiro pasi rese uye sevhisi vanovaka ngarava
Kemikari yakagadzirwa uye mechanical properties
Kemikari Inodiwa kune Yakajairika-Simba Structural Simbi
Element Giredhi A Giredhi B Grade D Giredhi E Giredhi CS
Deoxidation uye Hukobvu(t) mu mm
t>2.0 mukati(50mm) t>2.0 mukati(50mm) t>1.0 mukati(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

Tensile Chinodiwa cheZvose-Simba uye Yepamusoro-Simba Chimiro cheSimbi
Giredhi Tensile Strength ksi(Mpa) Yield Strength min ksi(Mpa) Elongation mu8 mu (200mm)% Elongation mu2 mu (50mm) min%
Simba remazuva ose
A B D CS E
58-75(400-520) 34(235) 21 24
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