ASTM A131 ABS AH36 DH36 EH36 Marine Steel Phaj

Marine steel phaj hais txog cov qauv hlau siv hauv nkoj tsim. Nws suav hais tias yog qib marine thiab yuav tsum muaj peev xwm tiv taus cov teebmeem corrosive uas muaj nyob rau hauv ib puag ncig dej. Txhawm rau ua tiav qhov no, cov ntsiab lus tshwj xeeb alloying tau ntxiv rau cov qib no txhawm rau tiv thaiv kev tiv thaiv corrosion.Thaum cov pa roj carbon feem ntau tsis haum rau cov chaw nyob hauv dej hiav txwv, muaj ntau ntau qib marine carbon steels uas tau pom zoo los ntawm cov koom haum sib txawv rau kev siv nkoj tsim.

Cov qauv hlau rau lub nkoj hulls tau muab faib ua cov chav kawm muaj zog raws li nws qhov tsawg kawg nkaus yield zog: lub zog dav dav hlau thiab siab lub zog steel. Maine steel phaj hais txog kub dov steel phaj ua raws li cov kev cai ntawm lub classication haiv neeg rau kev tsim kho ntawm lub nkoj hull lug. Lub zog steel s ntawm Tuam Tshoj Classification Society tau muab faib ua plaub qib zoo: A B D thiab E.

Muaj 9 lub koom haum kev faib tawm tseem ceeb hauv ntiaj teb.
A.B.S   American Bureau of Shipping
B.V.     Bureau Veritas
C.C.S. Tuam Tshoj Classification Society
D.N.V. Det Norske Veritas
G.L. Germanischer Lloyd
K.R. Korean Register of Shipping
L.R. Lloyd's Register of Shipping
N.K. Nippon Kaiji Kyokai
R.I.N.A Registro Italiano Navale

Cov txheej txheem qib steel phaj siv yuav luag tshwj xeeb hauv kev lag luam nkoj thiab sab nrauv. Qib no txhais tau tias muaj zog siab dua nrog cov txiaj ntsig tsawg kawg nkaus ntawm 51 KSI. Cov khoom no muaj nyob rau hauv ntau yam mob; AH36 nyob rau hauv kev tswj-dov mob, DH36 nyob rau hauv ob qho tib si tswj-dov thiab normalized mob, EH36 nyob rau hauv lub normalized mob. Cov qib no kuj tau lees paub los ntawm American Bureau of Shipping (ABS).

Lub zog siab dua - Qib AH, DH, EH thiab FH nrog cov ntsiab lus qis kawg nkaus ntawm 46 ksi (315Mpa), 51ksi (350Mpa) lossis 57 ksi (390Mpa)
Cov duab thiab cov tuav yog ib txwm muaj raws li Qib A, AH32, thiab AH36.Lwm cov qib yuav tau muab los ntawm kev pom zoo ntawm cov neeg yuav khoom thiab cov chaw tsim khoom.

Shipbuilding yog lub hauv paus rau Amelikas tus kheej thiab American ingenuity ci nyob rau hauv nws submarines, yachts, cruise ships, thiab aircraft carriers. Cov nkoj loj pib nrog cov qib siab zoo marine qib steel phaj thiab Gnee txaus siab los muab kev lag luam hauv Asmeskas kev lag luam nrog marine thiab offshore steel uas yog corrosion-resistant thiab tawv, ua kom pom kev txo qis, txawm tias nyob rau hauv txias txias, thiab muaj zog zog los tiv thaiv kev raug mob thiab kev vibration. Tag nrho peb cov phaj qib marine ua tau raws li cov qauv tsim los ntawm ABS (American Bureau of Shipbuilding), ASTM, thiab API (American Petroleum Institute). Peb yog cov chaw tsim khoom ntseeg siab ntawm marine & offshore steel phaj thoob ntiaj teb thiab kev pabcuam nkoj tsim khoom

Specifications ntau
Thickness: 2.5-120 hli
Dav: 1000-3000mm
Ntev: Raws li kev thov

Chemical Requirement for Higher-Strength Structural Steel

Element	Tshuaj muaj pes tsawg leeg (kub tsom xam% max
	AH36/DH36/EH36
C	0.18
Mn	0.90-1.60
Si	0.10-0.50
P	0.035
S	0.035
Al min	0.015
Cb	0.02-0.05
V	0.05-0.10
Ti	0.02
Cu	0.35
Cr	0.20
Ni	0.40
Mo	0.08
N	-

Tensile Requirement for Ordinary-Strength and Higher-Strength Structural Steel

Qib	Tensile zog ksi (Mpa)	Yield zog min ksi (Mpa)	Elongation hauv 8 hauv (200mm)%	Elongation hauv 2 hauv (50mm) min%
Siab zog
AH36 HH36 EH36 FH36	71-90(190-620)	51（355（	19	22