The main differences between Q235 and SPHC

The main differences between Q235 and SPHC lie in the execution standards, manufacturing processes, strength, applications, and carbon content Here are the specific differences:

Execution standard: Q235 follows the GB standard, which is a national standard; SPHC follows the JIS standard, which is a Japanese standard.

Process: SPHC is processed by hot rolling, resulting in a relatively smooth surface; Q235 is generally hot rolled, resulting in a relatively rough surface.

Strength: The tensile strength of SPHC is around 300MPa, while that of Q235 is around 400MPa, making Q235 stronger.

Uses: SPHC is widely used in the construction industry for manufacturing structural components of building frames, as well as simple stamped parts in manufacturing; Q235 is mainly used for various mechanical and engineering structural components that operate at lower temperatures, and is also used for some metal structural parts, carburized or cyanided parts that do not require high core strength, tie rods, connecting rods, hooks, couplers, bolts and nuts, sleeves, shafts, and welded parts.

Carbon content: The carbon content range of SPHC is 0.1-0.15%, while that of Q235 is less than 0.22%, making SPHC's carbon content relatively lower.