Q195/Q235 coils offer superior ductility and weldability (ISO/API certified), ideal for cost effective applications such as furniture, automotive parts and building panels. Q345/Q355 step up with increased tensile strength (520-680 MPa), perfect for machinery and pressure vessels.The star of the range, Q420 (GB/T 1591-2018), redefines toughness: 420MPa yield strength, -20℃ impact toughness and anti-fatigue properties make it unbeatable for wind turbine towers, bridges and offshore platforms. Customise thickness (0.8-100mm) and width (45-2200mm) with hot/cold rolling, slit edges or anti-rust coatings .