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1. AU2019415941 - Corrosion-resistant marine composite steel plate and manufacturing method therefor

Office
Australia
Application Number 2019415941
Application Date 14.11.2019
Publication Number 2019415941
Publication Date 02.07.2020
Publication Kind A1
IPC
B32B 15/01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products essentially comprising metal
01all layers being exclusively metallic
CPC
B32B 15/011
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products comprising ; a layer of; metal
01all layers being exclusively metallic
011all layers being formed of iron alloys or steels
B32B 15/01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15Layered products comprising ; a layer of; metal
01all layers being exclusively metallic
Applicants Baoshan Iron & Steel Co., Ltd.
Inventors









Agents Griffith Hack
Title
(EN) Corrosion-resistant marine composite steel plate and manufacturing method therefor
Abstract
(EN)
Disclosed are a corrosion-resistant marine composite steel plate and a manufacturing method therefor. The corrosion-resistant composite steel plate has a two-layer structure, wherein one layer is made of duplex stainless steel and the other layer is made of carbon steel. The components in percentage by weight of the duplex stainless steel are: C ≤ 0.03%, Mn ≤ 2.00%, Si ≤ 1.00%, 21.0-23.0% of Cr, 4.5-6.5% of Ni, 2.5-3.5% of Mo, 0.08-0.20% of N, and the balance being Fe and inevitable impurities; and the components in percentage by weight of the carbon steel are: 0.03% ≤ C ≤ 0.13%, Si ≤ 0.50%, 0.90-1.60% of Mn, P ≤ 0.020%, S ≤ 0.025%, Cu ≤ 0.035%, Cr ≤ 0.20%, Ni ≤ 0.40%, 0.02-0.05% of Nb, Ti ≤ 0.02%, Mo ≤ 0.08%, Al ≥ 0.015%, and the balance being Fe and inevitable impurities. A rolled composite steel plate is produced by using a double-barrier vacuum blank assembly method, so that a reduction in structure weight is achieved while a good structural strength and an excellent corrosion resistance are obtained.

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EP2019905547This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.