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ASTM A131 Sehlopha sa A/B Marine Steel plate
ASTM A131 Sehlopha sa A/B Marine Steel plate
ASTM A131 Sehlopha sa A/B Marine Steel plate
ASTM A131 Sehlopha sa A/B Marine Steel plate

ASTM A131 Sehlopha sa A/B Marine Steel plate

ASTM A131 ke mofuta oa sebopeho sa poleiti ea tšepe e sebelisoang hoo e batlang e le indastering ea kaho ea likepe. Sehlopha sena se hlalosoa e le matla a tloaelehileng a nang le chai e tlase ea 34KSI(235Mpa). Likopo li kenyelletsa likepe, lisebelisoa tsa likepe le kaho ea likepe. Limaraka tsena li boetse li netefalitsoe ke American Bureau of Shipping (ABS)
Kenyelletso e khuts'oane ea poleiti ea tšepe ea marine le matla a tloaelehileng a A131
Letlapa la tšepe la marine le bolela litšepe tsa sebopeho tse sebelisoang moahong oa sekepe. E nkoa e le boemo ba leoatle 'me e tlameha ho khona ho hanela liphello tse senyang tse tloaelehileng tikolohong ea metsi. Ho finyella sena, likarolo tse khethehileng tsa alloying li eketsoa lihlopheng tsena e le ho sireletsa khahlanong le corrosion.Le hoja boholo ba tšepe ea carbon e sa tšoanelehe bakeng sa tikoloho ea leoatle, ho na le litšepe tse ngata tsa carbon grade tse amohetsoeng ke mekhatlo e fapaneng bakeng sa likopo tsa ho haha ​​likepe.

Litšepe tsa sebopeho bakeng sa likepe tsa likepe li arotsoe ka lihlopha tsa matla ho ea ka matla a eona a fokolang a lihlahisoa: matla a kakaretso a tšepe ea mohaho le matla a phahameng a tšepe ea mohaho. Letlapa la tšepe la Maine le bua ka poleiti ea tšepe e chesang e kolobisitsoeng e hlahisoang ho latela litlhoko tsa sechaba sa classication bakeng sa kaho ea meaho ea sekepe sa sekepe. Litšepe tse matla ka kakaretso tsa China Classification Society li arotsoe ka lihlopha tse 'nè tsa boleng: A B D le E.

Ho na le lihlopha tse 9 tse ka sehloohong lefatšeng ka bophara.
A.B.S    Setsi sa Amerika sa Tsamaiso ea Likepe
B.V.    Bureau Veritas
C.C.S. China Classification Society
D.N.V   Det Norske Veritas
G.L.    Germanischer Lloyd
K.R. Registe ea Korea ea ho Romela
L.R. Lloyd's Register of Shipping
N.K. Nippon Kaiji Kyokai
R.I.N.A  Registro Italiano Navale

ASTM A131 ke mofuta oa sebopeho sa poleiti ea tšepe e sebelisoang hoo e batlang e le indastering ea kaho ea likepe. Sehlopha sena se hlalosoa e le matla a tloaelehileng a nang le chai e tlase ea 34KSI(235Mpa). Likopo li kenyelletsa likepe, lisebelisoa tsa likepe le kaho ea likepe. Limaraka tsena li boetse li netefalitsoe ke American Bureau of Shipping (ABS)

Tlhaloso ena e akaretsa lipoleiti tsa tšepe tsa sebopeho, libopeho, mekoallo le li-rivets tse reretsoeng ho sebelisoa kahong ea likepe.
Matla a tlwaelehileng- Kereiti ya A B D CS le E e nang le tlhahiso e fokolang ya ntlha ya 34 ksi(235MPa)


Kaho ea likepe e bohareng ba boitsebahatso ba Amerika mme bohlale ba Amerika bo khanya likepeng tsa eona tse tsamaeang ka tlas'a metsi, likepe tsa likepe, likepe tse tsamaeang ka sekepe le bajari ba lifofane. Likepe tse kholo li qala ka tšepe ea boleng bo holimo ea boemo ba metsing 'me Gnee e motlotlo ho fana ka indasteri ea kaho ea likepe ea Amerika ka tšepe ea leoatleng le kantle ho naha e sa jeng le e thata, e bonts'ang bofokoli bo fokotsehileng esita le mochesong o batang, le matla a eketsehileng a ho hanela khatello ea maikutlo le matla. thothomelo. Lipoleiti tsohle tsa rona tsa boemo ba metsing li kopana le litekanyetso tse behiloeng ke ABS (American Bureau of Shipbuilding), ASTM, le API (American Petroleum Institute). Re barekisi ba tšepahalang ba tšepe ea leoatleng le kantle ho naha lefatšeng ka bophara le lits'ebeletso tsa likepe
Sebopeho sa lik'hemik'hale le thepa ea mechine
Tlhokahalo ea Lik'hemik'hale Bakeng sa Tšepe ea Sebopeho sa Matla a Tloaelehileng
Element Kereiti A Sehlopha sa B Sehlopha sa D Mophato E Sehlopha sa CS
Deoxidation le Botenya(t) ka limilimithara
t>2.0 ho(50mm) t>2.0 ho(50mm) t>1.0 ho(50mm)
C 0.21 0.21 0.21 0.18 0.16
Mon 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 - - - -
Kr - - - - -
Mo - - - - -
Cu - - - - -
C+Mn/6 0.40 0.40 0.40 0.40 0.40

Tlhokahalo ea Tensile bakeng sa Matla a Tloaelehileng le Matla a Phahameng a Matla a Holimo
Kereiti Tensile Strength ksi(Mpa) Yield Strength min ksi(Mpa) Elongation ho 8 in (200mm)% Elongation ho 2 in (50mm) min%
Matla a tloaelehileng
A B D CS E
58-75(400-520) 34(235) 21 24
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