High strength structural steel plates in the quenched and tempered condition are designed for the most demanding engineering applications. From heavy earth-moving equipment, cranes, and mining machinery to offshore platforms, hydraulic supports, and high-rise buildings, these steel grades deliver exceptional strength, toughness, and wear resistance under extreme loading conditions.

  At Cehe Steel, we supply a complete range of Chinese high strength quenched and tempered steel grades under GB/T 16270-2009 (replacing GB/T 16270-1996). Our focus is not only on meeting yield strength requirements up to 960 MPa, but also on critical performance — including low-temperature impact toughness (down to -60°C), weldability (CEV/CET control), and through-thickness hardness uniformity.

  China has become a global leader in heavy machinery manufacturing, and we work directly with certified mills to deliver quenched and tempered steel that meets international standards. Whether you need Q460 for general high-strength structures, Q690 for heavy lifting equipment, or Q960 for ultra-high strength applications, our team provides technical support and full mill certification.

  We understand that high-strength applications require steel with consistent mechanical properties, excellent welding performance, and reliable low-temperature toughness. That's why we place equal importance on heat treatment control, ultrasonic testing, and impact energy stability — not just the steel grade.

  In heavy engineering, strength and toughness must work together. The right steel ensures equipment reliability and operational safety.