Comparison between SKS 3 and SCM 440 Steel Materials for the Location PIN of Welding JIG

摘要

Welding in manufacturing industry plays an important role. In welding, the location pin process is one of the important part that determines the precision of the resulting product. The most common material for the location pin is SKS 3 steel. This research will compare it with another material, SCM 440 steel, which is cheaper than SKS 3. The cost of SCM 440 is 23% cheaper than SKS 3. The results of the mechanical test and metallurgical prove that the SCM 440 material is stronger and tougher than the SKS 3. Therefore, It can be ascertained that SCM 440 can replace SKS 3 as the material for the material of the location pin.