Rod
Rod refers to long, solid metal products with a uniform cross-section, manufactured through hot rolling, cold drawing, or forging. Compared with wire, rods have larger diameters and are used in applications where higher strength, rigidity, or machining allowances are required. Depending on the material and production route, rods place specific demands on non-destructive testing to ensure surface quality, dimensional accuracy, and structural integrity.
Bright steel (general)
Bright steel is produced by the descaling and subsequent cold molding of usually hot-rolled steel. Alternatively, previously forged steel can be used for production. Bright steel characteristically has a bright, smooth surface and high dimensional accuracy.
Drawn steel bars
Drawn steel bars are all products made from all types of steel whose cross section is identical across the entire bar.
NFE bars
The special properties of non-magnetic bars and rods made from materials such as titanium, platinum, or gold require special sensor systems for surface testing.
FE bars (black)
Black FE bars are ferromagnetic metals formed through hot rolling, resulting in an oxidized scale layer that gives the surface its black appearance.
Austenitic rods
Austenitic rods, especially stainless steel types, have very low magnetic permeability because their austenitic microstructure is essentially non-magnetic.