The company adopts modern management concept, adheres to “quality for survival, integrity for development”, and provides customers with high-quality and reliable A573 Gr 70 carbon steel plate steel products and wholehearted service. The company continuously deepens the internal reform of the enterprise, innovates in the reform, develops in the innovation, and gradually forms a set of management and operation mechanism which adapts to the market and has strong competitiveness.
EN10025-6 S690 steel is a quenched and tempered high-strength non-alloy steel plate. The series of grades are S690Q, S690QL, and S690QL1. They are in accordance with the European standard EN10025-6. The steel specified in this standard can be used for the production of hot-rolled plates with steel grades A573 Gr 70 carbon steel plate, S460, S500, S550, S620, S690, S890, S960 series steel plates with a minimum nominal thickness of 3mm and a maximum nominal thickness of ≤150mm.
A573 Gr 70 carbon steel plate, Q345D seamless pipe is low-alloy high-strength structural steel. It is named as low-alloy because of a small amount of alloy elements in the steel. Q345D seamless pipe is mainly used for construction and engineering structures. The carbon content of Q345D seamless pipe is ≤ 0.18%. Due to the effect of alloy elements, the yield strength of Q345D seamless pipe is 25% - 150% higher than that of carbon structural steel pipe with the same carbon content. Q345D seamless pipe can reduce the weight of steel structure, save steel products and effectively extend the service life of steel structure.
Oxygen (O) is a harmful element in steel such as A573 Gr 70 carbon steel plate. Although manganese, silicon, iron and aluminum are added to deoxidize the steel at the end of steelmaking, they can not be removed completely. During the solidification of molten steel, the reaction of oxygen and carbon in the solution will produce carbon monoxide, which can cause bubbles. Oxygen mainly exists in the form of FeO, MnO, SiO2, Al2O3 and other inclusions in the steel, which reduces the strength and plasticity of the steel. Especially, it has serious influence on fatigue strength and impact toughness.
"A573 grade 70 steel chemical composition(%)Carbon max. 0.28: Manganese: 0.85-1.20Phosphorus Max.: 0.03Sulfur Max.: 0.03Silicon: 0.15-0.40A573 Gr 70 carbon steel plate, A573 Grade 70 steel mechanical propertiesTensile strength min. MPa: 290Yield strength min. MPa: 485Elongation % min. in 200mm : 18Elongation % min. in 50mm : 21"
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The company adopts one-to-one fast service and has formed a professional after-sales service team to deal with various problems reflected by customers as soon as possible. At the same time, a traceable product traceability system has been established. It has always been placed at an important core position to resolve customer worries. Our steel A573 Gr 70 carbon steel plate products are always committed to “quality issues, life-long replacement”, which is the embodiment of our comprehensive service.