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HIGH STRENGTH STEEL FOR WELDING STRUCTURE WITH SUPERIOR HAZ TOUGHNESS FOR HIGH HEAT INPUT WELDING
HIGH STRENGTH STEEL FOR WELDING STRUCTURE WITH SUPERIOR HAZ TOUGHNESS FOR HIGH HEAT INPUT WELDING
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机译：高强度焊接用高强度钢的焊接结构，用于高热输入焊接
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摘要
The present invention provides a high strength steel for a welding structure with superior heat affected zone (HAZ) toughness for high heat input welding, comprising: 0.03-0.2 wt% of carbon (C); 0.01-0.5 wt% of silicon (Si); 0.4-2.0 wt% of manganese (Mn); 0.005-0.1 wt% of titanium (Ti); 0.06-0.6 wt% of aluminum (Al); 0.003-0.01 wt% nitrogen (N); 0.0005~0.008 wt% of oxygen (O); 0.0003-0.005 wt% of boron (B); 0.01 wt% of phosphorus (P); 0.01 wt% of sulfur; and the remaining consisting of iron (Fe) and inevitable impurities, wherein the element content of Ti, Al, N, S and O satisfies the formulas of 3=Ti/N=10, 5=Ti/O=25, 20=Al/N=160 and 30=Al/O=500.;COPYRIGHT KIPO 2016
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机译：本发明提供了一种用于焊接结构的高强度钢，其具有用于高热输入焊接的优异的热影响区（HAZ）韧性，其包含：0.03-0.2重量％的碳（C）;和0.01-0.5 wt％的硅（Si）; 0.4-2.0 wt％的锰（Mn）; 0.005-0.1重量％的钛（Ti）; 0.06-0.6重量％的铝（Al）; 0.003-0.01wt％的氮（N）;氧气（O）的0.0005〜0.008 wt％; 0.0003-0.005 wt％的硼（B）; 0.01 wt％的磷（P）; 0.01重量％的硫;其余由铁（Fe）和不可避免的杂质组成，其中Ti，Al，N，S和O的元素含量满足以下公式：3 <= Ti / N <= 10，5 <= Ti / O <= 25 ，20 <= Al / N <= 160和30 <= Al / O <= 500。; COPYRIGHT KIPO 2016
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