Slag under the surface - 1.4105 steel

Slag under the surface - 1.4105 steel - Cold drawing defects

Figure 1: Treatment: Soft annealed. Magnification: 100x. Sampling/Specification: Transverse. Testing result: Surface near slag 0.26 mm deep.

Figure 2: Treatment: Soft annealed. Magnification: 200x. Sampling/Specification: Transverse. Testing result: Surface near slag.

Defect name: Slag under the surface
Record No.: 476
Type of defect (Internal/Surface): Surface
Defect classification: Cold drawing defects
Steel name: 1.4105 steel
Steel composition in weight %: No data.
Note: Non metallic inclusions (slags), branch-on through the casting process, can occur in the steel. If slag is washed into the steel by an irregularity during the cast, these non metallic inclusions can come to the surface proximity of the ingot or strand. After rolling the pre-material these inclusions can lead under unfavorable conditions to damages. Such defects are provable in the transverse microsection.
Rod wire 15.50 mm round - soft annealed, pickled.
Reference: Not shown in this demonstration version.