How can I distinguish between rolled H steel and welded I-beam?
Hot rolled steel is whole, so the corners of smooth transition, especially on the two h plate has a certain inclination. H type steel welded by plate group of welding, so both sides of H steel are flat. As shown, the first one is I-beam and the second is H steel.
The welded steel wing plate and the stiffened plate joint are generally inclined to transition (or have slight bumps) and are not uniformly uniform in longitudinal length. From the connecting plate of the wing plate and the rib plate at both ends of the profile, the sanding machine is used to burnish the metal color, and the light is polished. The rib plate and the wing plate are not identical, and even the penetration part of the welding material can be seen
The connecting parts of the wing plate and the rib plate of the hot rolled steel are concave and smooth in transition and uniformly uniform in longitudinal length.
