首页> 外国专利> THICK-WALLED, HIGH TENSILE STRENGTH STEEL WITH EXCELLENT CTOD CHARACTERISTICS OF THE WELD HEAT-AFFECTED ZONE, AND MANUFACTURING METHOD THEREOF

THICK-WALLED, HIGH TENSILE STRENGTH STEEL WITH EXCELLENT CTOD CHARACTERISTICS OF THE WELD HEAT-AFFECTED ZONE, AND MANUFACTURING METHOD THEREOF

机译：厚厚的高抗拉强度钢，其焊接热影响区具有出色的断面图特征及其制造方法

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摘要

The steel plate of heavy wall, high tensile has excellent low-temperature flexibility multilayer welding (CTOD characteristics and the but influence of shellfish weld bond) and its manufacturing method. The high tensile plate has a Component composition, and those contain the specific quantities quality such as C, Si, Mn, P, S, Al, Cu, Ni, Nb, Ti, N, O %, whereinIt is 0. by formula (1) with following formula520% or smaller, Ti/N ratio are 1.50-4.00, meet parameter expression, including specific element, to control the steel of the form of sulfide and the center segregation of degree, remainder includes Fe and inevitable impurity, and wherein the steel plate center segregation region of hardness is designated. Ceq=[C] [Mn]/6+++([Cu]+[Ni])/15 ([Cr]+[Mo]+[V])/5 such. ( 1 )

机译：重壁高强度钢板具有优异的低温柔韧性多层焊接（CTOD特性和受贝类焊接粘结的影响）及其制造方法。高强度板具有成分组成，并且包含特定量的质量，例如C，Si，Mn，P，S，Al，Cu，Ni，Nb，Ti，N，O％，其中式（0）为1）具有下式520％或更小的Ti / N比为1.50-4.00，满足参数表达式，包括特定元素，以控制硫化物形式的钢和中心偏析度，其余包括Fe和不可避免的杂质，以及其中，指定了钢板的中心偏析区域的硬度。 Ceq ＝ [C] [Mn] / 6 +++（[Cu] + [Ni]）/ 15（[Cr] + [Mo] + [V]）/ 5。（1）

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公开/公告号EP2894235B1

专利类型
公开/公告日2019-01-09

原文格式PDF
申请/专利权人 JFE STEEL CORPORATION;
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申请/专利号EP20130834774
发明设计人 HAYASHI KENJI;ICHIMIYA KATSUYUKI;YUGA MASAO;
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申请日2013-09-04
分类号C22C38/00;B21B1/38;B21B3/00;C21D8/02;C22C38/16;C22C38/58;C21D6/00;C21D9/46;C21D1/20;C22C38/02;C22C38/04;C22C38/06;C22C38/08;C22C38/12;C22C38/14;C22C38/42;C22C38/46;C22C38/48;C22C38/50;
国家 EP
入库时间 2022-08-21 12:30:26

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