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SKD11 0.2~3.2mm
HRC 56~58
Welding and cold working steel, metal stamping dies, cutting dies, knives, forming dies, ceramic dies, PVC corrosion-resistant dies, etc. The hard surface of the workpiece is made of argon electrodes with high hardness, wear resistance and high toughness. Before welding repairs, heat and preheat, otherwise cracking will easily occur.
S-136 0.2~2.4mm
HB ~ 400
Plastic injection mold with good corrosion resistance and permeability. High purity, high mirror surface, good polishability, rust and acid resistance, less heat treatment deformation, suitable for PVC?PP?EP?PC?PMMA plastics, corrosion-resistant and easy-to-process molds and fixtures, super-mirror corrosion-resistant molds, such as rubber molds, camera parts, lenses , case, etc.
P20Ni 0.2~3.2mm
HRC 30~34
Plastic injection molds, heat-resistant molds (copper molds). It is designed with an alloy composition with low sensitivity to welding cracking. It contains about 1% nickel. It is suitable for PA?POM?PS?PE?PP?ABS plastic. It has good polishing rotation, no pores and cracks after welding. After pre-hardening to HRC 33 degrees, the cross-section hardness distribution is uniform, and the mold life is more than 300,000. The preheating temperature is 250~300¡É and then the heating temperature is 400~500¡É. When doing multi-layer welding repair, the back welding method is used for repairing, which is less likely to cause defects such as poor fusion and pinholes.