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High Strength Low Alloy V Steels: Part Two :: Total Materia Article
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High Strength Low Alloy V Steels: Part Two
Studies performed by te US Army Engineering Research and Development Center (ERDC) in Vicksburg, Mississippi have demonstrated that te use of high strength rebar can build structures with increased blast resistance.
In many cases HSLA-V steels can be substituted for low carbon steels with minimal redesign. Te manufacturing processes (e.g., forming, welding, etc.) remain essentially te same.
HSLA-V can be found in following applications:
Figure 1: HSLA –V applications
Studies have shown that HSLA-V steels produce weight and cost savings for use in long-span joists, rebar-reinforced concrete, and bridging applications. Detailed experimental, computational and design studies show that long-span joists and girders can be reduced in weight by up to 25%, allowing structures to reduce their overall steel usage in girders and joists by 17% (see Figure 1). Te Army are one group which take a particular interest in lightweight construction, primarily for sustainability. Doing te same job with less steel means that less energy was used to produce and transport te steel, saving money and reducing te environmental footprint of te building process. HSLA-V rebar can provide te same benefits in reinforced concrete structures: less steel for te same outcome.
Alternatively, it can provide enhanced capabilities, whereby an identical quantity of HSLA-V steel can provide more protection to te structure. Studies performed by te US Army Engineering Research and Development Center (ERDC) in Vicksburg, Mississippi have demonstrated that te use of high strength rebar can build structures with increased blast resistance. In a similar approach, te high strength rebar also enhances te earthquake resistance of te structure.
Lightweight materials pay dividends over te entire life cycle of vehicles and transportation equipment, as weight reductions are a proven means to save fuel. Furthermore, te logistics of getting fuel to remote battlefields magnifies those savings and makes weight reduction a priority for te armed forces. A case study completed by a producer of high strength steel and a flatbed trailer manufacturer has shown that te use of HSLA-V steels can reduce te weight of conventional steel trailers by 21% (see Figure 2). Weight savings will reduce fuel usage every time a trailer rolls out on a mission. There are materials even lighter than HSLA-V steels that can further reduce fuel consumption, (e.g., aluminum, magnesium, and polymer composites) and te use of these materials will also continue to expand as fuel prices increase. However, HSLA-V steels still represent great value to te engineering designer and to te Army.
In many cases HSLA-V steels can be substituted for low carbon steels with minimal redesign. Te manufacturing processes (e.g., forming, welding, etc.) remain essentially te same. Finally, te cost of components produced using HSLA-V steel remains about te same, since any increase per pound to use HSLA-V steel is directly offset by te fact that less steel is used. All in all, HSLA-V steels represent a great overall value to te Army.
Figure 2: Te use of HSLA-V steels in tactical trailer applications can reduce weight by up to 21% compared to conventional steels
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High Strength Low Alloy V Steels: Part One
High Strength Low Alloy V Steels: Part Three
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