Key Features of Q345D Seamless Steel Pipe:

Excellent comprehensive mechanical properties, good weldability, cold and hot working performance, and corrosion resistance, with good low-temperature toughness.

Q345D Seamless Steel Pipe Applications:

Ships, boilers, pressure vessels, oil storage tanks, bridges, power station equipment, lifting and transportation machinery, and other welded structural components with high loads

Q345D Seamless Steel Pipe: Old Standard Comparison

18Nb Nb-tempered steel, with performance similar to 14MnNb, mainly used for cranes, blowers, chemical machinery, etc.

09MnCuPTi atmospheric corrosion-resistant steel, with good low-temperature impact toughness, weldability, and excellent cold and hot working properties, mainly used in various machinery in humid, rainy areas and environments with corrosive atmospheres.

12MnV low-temperature steel with operating temperature of -70°C, mainly used for refrigeration machinery and structural components working under low temperatures.

The 14MnNb has properties similar to those of 18Nb steel, mainly used for containers and other structural components operating at temperatures ranging from -20 to 450 degrees Celsius.

16Mn offers excellent comprehensive mechanical properties, low-temperature performance, cold stamping properties, welding properties, and machinability. It is mainly used in various machinery for mining, transportation, chemical industry, etc.

16MnRE has similar properties to 16Mn steel, with better impact toughness and cold bending properties than 16Mn, and its applications are the same as those of 16Mn steel.