首页> 外国专利> STEEL FOR HIGH-STRENGTH BOLTS WHICH HAS EXCELLENT DELAYED FRACTURE RESISTANCE AND BOLT FORMABILITY, AND BOLT

STEEL FOR HIGH-STRENGTH BOLTS WHICH HAS EXCELLENT DELAYED FRACTURE RESISTANCE AND BOLT FORMABILITY, AND BOLT

机译：具有出色的延迟断裂抗性和螺栓成形性的高强度螺栓用钢，以及螺栓

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摘要

To provide a steel for high-strength bolts, which can exhibit the sufficient delayed fracture resistance under the severe environment, and also has excellent bolt formability. The steel for high-strength bolts of the present invention includes C: 0.10 to 0.30%; and Ni: 0.4 to 0.7%, with the chemical composition being appropriately adjust, and satisfies the following formulas (1) and (2):; 0.85≦[C]+[Si]/7+[Mn]/5+[Ni]/20+[Cr]/9+[Mo]/2≦1.3 (1); [C]−(0.07×[Mo]+0.20×[V])≦0.20 (2)

机译：提供一种用于高强度螺栓的钢，该钢在恶劣的环境下可以表现出足够的耐延迟断裂性，并且还具有优异的螺栓成形性。本发明的高强度螺栓用钢的C：0.10〜0.30％，C：0.10〜0.30％。 Ni：0.4〜0.7％，化学组成适当调整，满足下式（1）和（2）： <？in-line-formulae description =“在线表达式” end =“ lead”？> 0.85≦[C] + [Si] / 7 + [Mn] / 5 + [Ni] / 20 + [Cr] / 9+ [Mo]/2≤1.3（1）<？in-line-formulae description =“在线表达式” end =“ tail”？>; <？in-line-formulae description =“在线表达式” end =“ lead”？> [C]-（0.07×[Mo] + 0.20×[V]）≦0.20（2）<？in-line-公式description =“ In-line Formulae” end =“ tail”？>

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公开/公告号US2016230260A1

专利类型
公开/公告日2016-08-11

原文格式PDF
申请/专利权人 KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL LTD.);
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申请/专利号US201415022857
发明设计人 REIKO KATO;YOSUKE MATSUMOTO;MASAMICHI CHIBA;YOSHIMASA URESHINO;ATSUSHI INADA;
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申请日2014-09-16
分类号C22C38/50;C22C38/44;C22C38/42;C22C38/06;C21D1/18;C22C38/02;C22C38/00;F16B31/06;C21D9/00;C21D6/00;C22C38/46;C22C38/04;
国家 US
入库时间 2022-08-21 14:38:46

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