Advantages of HISTAR® by application
HISTAR® steels are delivered in a thermomechanically rolled condition in accordance with the European Technical Approval ETA-10/0156. They comply with the requirements of the European standard EN 10025-4: 2019 for weldable fine grain structural steels and other national standards like ASTM A 913-11 and JIS G 3106:2008.
HISTAR® grades are compatible with the requirements of the Eurocodes for the design of steel structures and composite steel-concrete structures.
The steels are typically delivered with an Si content ranging between 0,14% and 0,25% and are as such capable of forming a zinc layer during hot-dip galvanisation. As the phosphorus content of these steels is usually lower than 0,035%, it does not have any influence on the final thickness of the coating in the considered Si range.
HISTAR® steels are produced in the modern EAF (Electric Arc Furnace) route, using 100% scrap as a raw material (upcycling). EAF steel production technology allows for significant reductions of noise, particle, and CO2-emissions and saves water and primary energy in the production process.
Resistant, economical, & sustainable
HISTAR® steels are innovative structural steel grades with a low alloy content available in yield strengths of 355 MPa and 460 MPa. HISTAR® grades combine high strength with excellent toughness at low temperatures and outstanding weldability - these material properties were considered incompatible until now.
The application of the innovative in-line heat treatment QST (Quenching and Self-Tempering) allows all HISTAR® grades, unlike most standard grades, to offer improved guaranteed values for yield strength over the whole product range.
- Considerable weight reduction and cost savings of steel structures
- Time savings in fabrication process: e.g. generally no preheating required for welding thanks to HISTAR®'s low carbon equivalent values
HISTAR® high strength steels are the ideal solution for structural applications where strong axial behaviour is key. In the shape of hot rolled Super Jumbo profiles, HISTAR® steels lead to automatic cost and material saving compared to conventional steel grades in the following applications:
In gravity columns (steel and composite columns with hot rolled profiles for higher resistance under axial compression, cruciform sections, and tailor-made solutions), the use of HISTAR® 460 compared to S355 brings an immediate 30% improvement of the axial stress resistance in relation to cost, weight savings, and gains in net carpet area. In long span trusses, the use of HISTAR® steels reduces the size and weight of its members, allowing for more economical and lighter designs. The same applies to belt trusses and outriggers, which improve stiffness and strength and add torsional resistance in high rise buildings. In foundation solutions, considerable weight savings are automatically ensured when using HISTAR® for HZ®-M King piles in axial compression.
Related news and technical articles
Successes for sustainable construction at BAU27 April 2023
ArcelorMittal took part in BAU, a major event for the construction and building industry, in Munich from 17-22 April, showcasing its latest high-performance steel products, XCarb® range of sustainable steels, and cooperations dedicated to construction.Event news
6000 tonnes of XCarb® recycled and renewably produced available for South East Asian market6 October 2022
XCarb® Recycled and renewably produced is now in stock in Singapore and available for the South East Asian market. Continental Steel, a major stockist in Asia, has recently purchased 6000 tonnes of XCarb® recycled and renewably produced sections. Through combined efforts between ArcelorMittal Europe – Long Products and the ArcelorMittal International Singapore office, Continental Steel are convinced they will gain a competitive advantage by being among the first distributors in Asia to promote and sell low CO2 emissions steel.Product news
ArcelorMittal steel awarded for its outstanding sustainability22 September 2022
In May 2022, ArcelorMittal International was awarded the highest rating at Singapore Green Building Council’s Leadership in Sustainability awards. The certificate acknowledges ArcelorMittal’s HISTAR® high strength structural steels for their outstanding sustainability due to the usage of 100% scrap steel and the EAF production route.Product news