S690QL ultra high strength steel
S690QL ultra high strength steel
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- Commodity name: S690QL ultra high strength steel
S690QL Structural Steel plates,provides goof welding abilities, in all existing welding methods. S690QL high yield structural steel is used in a variety of sectors including: Heavy transportation Machine building Steel constructions Lifting equipment, long-span bridge components, bearing element in high-rise buildings, off-shore structures and cranes, in power plants, mining applications or LPG vessel, etc.
Product informationS690QL is a high strength quenched and tempered steel grade that complies to steel specification EN 10025. The designation S690QL refers to a minimum yield strength of 690 MPa.
The combination of good availability and pricing and high strength combined with ease of fabrication has made S690QL steel plate a popular grade for both mobile applications such as cranes and lifting equipment and fixed steel structures. The high strength nature of this steel means that structures can be designed lighter and for mobile application this means increase in payload and operational efficiency.
Chemical composition & Mechanical property
Typical chemical composition of S690QL % Max C
SI
Mn
P S
N
B Cr Cu Mo Nb Ni Ti V Zr 0.2 0.80 1.70 0.025 0.015 0.015 0.005 1.50 0.50 0.70 0.06 2.0 0.05 0.12 0.15 Mechanical Properties of S690QL Designation Mechanical Properties (ambient temperature) Steel Name Steel Number Min. Yield Strength ReH MPa Tensile Strength Rm MPa Min. & elongation after fracture Nominal thickness (mm) Nominal thickness (mm) >3 <50 >50 <100 >100 <150 >3 <50 >50 <100 >100 <150 S690QL 1.8931 690 650 630 770/940 760/930 710/900 14 V notch impact testing Grade
Sample Orientation
at 0°C
at -20°C at -40°C
at -60°C
S690QL Longitudinal 50J 40J 30J S690QL Transverse 35J 30J 27J Key words:- S690QL ultra high strength steel
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To: Tianjin Bohai Metal Company
Tianjin Bohai Metal
Tel : +86 0635 6666186
Fax :+86 0635 6666186
E-mail : bhteddy@cnbhgt.com
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Add : Dongchangfu District, Liaocheng City, Shandong Province