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首页> 外文会议>Proceedings of the 3rd Pan American materials congress >New Generation Niobium Bearing Structural Steels for Future Infrastructure Demands
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New Generation Niobium Bearing Structural Steels for Future Infrastructure Demands

机译：满足未来基础设施需求的新一代铌轴承结构钢

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摘要

The new generation of value-added low carbon niobium (Nb) microalloyed beam, plate and rebar construction steels for both low and high yield strength and energy absorption applications are shifting designers to these new high performance lower cost materials. The civil engineering and end user community demand structural reinforcing bars, shapes, beams and plates with improved energy absorption and fatigue properties. The future market demands better fire and seismic resistance, yield-to-tensile ratio consistency, improved bendability and weldability. These attributes are difficult to obtain from steel producers today with their current higher carbon microalloyed steel approach. However, there is a global shift in motion to low C-Nb bearing construction steels displacing traditional materials. For example, in the construction beam sector and rebar sector improved properties result for 0.02-0.04%Nb in low carbon steel for S355 and S420 beams and for S500 and S600 low carbon reinforcing bars.
机译：面向低屈服强度和高屈服强度以及能量吸收应用的新一代增值低碳铌（Nb）微合金梁，板和钢筋建筑用钢，正使设计人员转向使用这些新型高性能，低成本材料。土木工程和最终用户社区需要具有增强的能量吸收和疲劳特性的结构钢筋，形状，梁和板。未来的市场需要更好的耐火性和抗震性，屈服拉伸比一致性，改善的可弯曲性和可焊性。这些属性很难从当今的钢铁生产商那里以其当前的高碳微合金钢方法获得。但是，全球范围内正在向使用低C-Nb轴承的建筑钢替代传统材料的运动转移。例如，在建筑梁和钢筋领域，S355和S420梁以及S500和S600低碳钢筋的低碳钢中0.02-0.04％Nb的性能得到改善。

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