FS 139 is a new generation of domestic wear-resistant and corrosion-resistant mirror die steel, and its hardness can reach 52-58HRC after vacuum heat treatment.

Main features: excellent polishing performance, high purity, excellent wear resistance and corrosion resistance.

Chemical composition: carbon: 0.4% manganese: 0.35% silicon: 0.45% chromium: 16.2% molybdenum: 1.5%.

Application of steel: suitable for various wear-resistant plastic molds such as switches, sockets and bakelite. The wear resistance is much higher than that of traditional AISI420 steel. For high-yield molds, the fundamental problem of developing multiple sets of molds and repairing them many times has been solved.

Corresponding brand: Germany 1.23 16ESR? American 420ESR Japan HPM3 1 Sweden S 136

FS636 is a high-gloss corrosion-resistant mirror die steel independently developed and designed by FuGang, with excellent purity. Ensure low sulfur content (up to 0.003%) and low nonmetallic inclusions in steel, excellent toughness and polishing, high purity, and greatly reduce the occurrence of mold cracks.

Main characteristics: excellent corrosion resistance, excellent polishing performance, excellent toughness and heat treatment stability.

Chemical composition: C: 0. 18-0.25%? Manganese: 0.4-0.7% silicon: 0.7- 1% chromium: 13- 14% molybdenum: 0. 15-0.45%.

Steel application: molds that need high surface finish and molds that need to work or store in corrosive environment.