Q345 Carbon Steel Plate

Q345 Carbon Steel Plate is a high-strength, low-alloy (HSLA) structural steel. Compared to standard mild steel, it delivers higher yield strength, excellent weldability, and reliable impact toughness, making it ideal for bridges, machinery, and structural fabrication.

Through controlled rolling and optimized chemistry, Q345 offers a cost-effective combination of high strength and easy formability for large-scale engineering.

The 345 MPa yield strength enables thinner plate selection for identical load profiles, reducing structural dead weight, shipping volumes, and overall project costs.

The optimized low-carbon chemistry allows for hassle-free welding using standard methods (SMAW, GMAW, SAW) without rigid pre-heating requirements under regular thicknesses.

Exceptional elongation properties allow for tight-radius cold bending, roll-forming, and fabrication without surface tearing or micro-cracking.

Manufactured using clean steel practices with optional inclusion shape control, ensuring uniform multi-directional properties and excellent resistance to lamellar tearing.

Infrastructure & Construction: Ideal for steel structures, high-rise building framing, and long-span bridge engineering.

Heavy Machinery: Widely used in fabricating mining equipment, excavators, cranes, and construction machinery.

Industrial Manufacturing: Suitable for pressure vessels, boilers, large storage tanks, and heavy-duty industrial fabrications.

Transportation: Applied in manufacturing ship hulls, marine structures, railway wagons, and heavy vehicle chassis.

Every shipment undergoes strict internal quality inspections before dispatch. We provide and support:

Dimensional Inspection: 100% verification of thickness, width, and flatness tolerances.

Ultrasonic Testing (UT): Available upon request to ensure zero internal defects for heavy-plate applications.

Surface Quality Check: Ensuring zero scale, lamination, or deep pitting before packing.

Rust Protection: Anti-rust oil coating + VCI waterproof paper wrapping.

Securing: Heavy-duty steel strapping with edge protectors.

Container Loading: Professionally chocked and braced with timber to prevent movement during transit. (Max weight per container tailored to your port's regulations).