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Ụlọ > Ngwaahịa > Efere ígwè > Efere ígwè na-arụ ụgbọ mmiri
ASTM A131 Marine Steel Plate
ASTM A131 Marine Steel Plate
ASTM A131 Marine Steel Plate
ASTM A131 Marine Steel Plate

ASTM A131 Marine Steel Plate

Efere igwe mmiri na-ezo aka na nchara arụrụ arụ eji arụ ọrụ ụgbọ mmiri. A na-ewere ya dị ka ọkwa mmiri na ọ ga-enwerịrị ike iguzogide mmetụta ndị na-emebi emebi na-emekarị na gburugburu mmiri. Iji mezuo nke a, a na-agbakwunye ihe ndị pụrụ iche alloying na akara ule ndị a iji chebe megide corrosion.
Mwebata dị mkpirikpi nke efere ígwè mmiri
Efere igwe mmiri na-ezo aka na nchara arụrụ arụ eji arụ ọrụ ụgbọ mmiri. A na-ewere ya dị ka ọkwa mmiri na ọ ga-enwerịrị ike iguzogide mmetụta ndị na-emebi emebi na-emekarị na gburugburu mmiri. Iji mezuo nke a, a na-agbakwunye ihe ndị pụrụ iche alloying na akara ule ndị a iji chebe megide corrosion.

A na-ekewa ígwè arụrụ arụ maka ụgbọ mmiri n'ime klaasị ike dị ka ike mkpụrụ kacha nta ya siri dị: nchara nrụzi ike zuru oke na nchara nhazi dị elu. Efere igwe Maine na-ezo aka na efere igwe akpọrepu ọkụ na-ekpo ọkụ emepụtara dị ka ihe chọrọ nke ọha na-ahụ maka oge ochie maka iwu ihe owuwu ụgbọ mmiri. A na-ekewa ike nchara nchara nke China Classification Society na akara ule anọ: A B D na E.

Enwere obodo nhazi ọkwa itoolu n'ụwa niile.
A.B.S   Ụlọ Ọrụ Mbupu nke America
B.V.    Bureau Veritas
C.C.S. Òtù Nhazi nke China
D.N.V  Det Norske Veritas
G.L.   Germanischer Lloyd
K.R. Ndebanye aha Korea nke Mbupu
L.R. Ndebanye aha nke Mbupu nke Lloyd
N.K. Nippon Kaiji Kyokai
R.I.N.A  Registro Italiano Navale

ASTM A131 bụ ọkwa nhazi nke efere ígwè ejiri ihe fọrọ nke nta ka ọ bụrụ naanị na ụlọ ọrụ na-ewu ụgbọ mmiri. A kọwapụtara ọkwa a dị ka ike nkịtị nwere mkpụrụ kacha nta nke 34KSI(235Mpa). Ngwa gụnyere ụgbọ mmiri, akụrụngwa mmiri na ịrụ ụgbọ mmiri. Ụlọ ọrụ American Bureau of Shipping(ABS) kwadoro akara ule ndị a.

Ịrụ ụgbọ mmiri bụ isi na njirimara America na ọgụgụ isi America na-enwu n'ime ụgbọ mmiri okpuru mmiri, ụgbọ mmiri, ụgbọ mmiri, na ndị na-ebu ụgbọ elu. Nnukwu ụgbọ mmiri na-amalite site na efere ígwè dị elu nke mmiri dị elu na Gnee nwere obi ụtọ ịnye ụlọ ọrụ ụgbọ mmiri America na mmiri na nchara dị n'ụsọ oké osimiri nke na-eguzogide corrosion na siri ike, na-egosi mbelata nhịkọ, ọbụna na oyi na-atụ, na ụbara ike iguzogide trauma na ike. ịma jijiji. Efere ọkwa mmiri anyị niile na-agbaso ụkpụrụ ABS (Ụlọ Ọrụ Na-ahụ Maka Ụgbọ mmiri America), ASTM na API (American Petroleum Institute) setịpụrụ. Anyị bụ onye na-ebubata efere igwe mmiri na nke dịpụrụ adịpụ n'ofe ụwa yana ndị na-arụ ụgbọ mmiri.
Ngwakọta kemịkalụ na mechenical Njirimara
Ihe achọrọ kemịkalụ maka igwe arụrụ arụ-ike nkịtị
Ihe Ọkwa A Ọkwa B Ọkwa D Ọkwa E Ọkwa CS
Deoxidation na ọkpụrụkpụ (t) na mm
t>2.0 in (50mm) t>2.0 in (50mm) t> 1.0 inch (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 - - - - -
Ku - - - - -
C+Mn/6 0.40 0.40 0.40 0.40 0.40

Ihe chọrọ kemịkalụ maka igwe arụrụ arụ dị elu
Ihe Ngwakọta kemịkalụ(nyocha okpomọkụ% max
AH /DH/EH32 AH/DH/EH36 na AH/DH/EH40 FH32/36/40
C 0.18 0.16
Mn 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
Ti 0.02 0.02
Ku 0.35 0.35
Cr 0.20 0.20
Ni 0.40 0.40
Mo 0.08 0.08
N - 0.009

Chọrọ Tensile maka Nkịtị-Ike na Igwe Nrụmọrụ Dị Elu
Ọkwa Ike tensile ksi(Mpa) Mpụta Ike min ksi(Mpa) Mgbatị na 8 n'ime (200mm)% Mgbatị n'ime 2 n'ime (50mm) min%
Ike nkịtị 58-75(400-520) 34(235) 21 24
A B D E CS
Ike dị elu
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

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