Characteristics of materials
- The steel code is
-, which is Japan's Datong pre-hardened corrosion-resistant stainless steel plastic mold steel and
- precipitation hardenable steel. This steel is not sulfur-added and has good mirror processability and electrical discharge processability. Produced by special smelting, it has high cleanliness and stable performance. It has good polishing performance and engraving properties, no need for heat treatment, good processability and low surface roughness, and uniform hardness distribution.
- The pre-hardening treatment process adopts hot working forging
- Quenching
- Tempering three-step process to produce hardness
3~
-
/> - Precipitation reinforced plastic mold steel finished products. This pre-hardening treatment process effectively solves the problems of long pre-hardening treatment of mold steel and low production efficiency.
- This steel has good weldability, and the hardness of the welded part decreases. After welding, after
℃
- aging treatment and air cooling, the hardness of the welded part and the heat affected zone will decrease. Both have the same hardness as the base material. After gas nitriding, the surface hardness of this steel can reach
-, which can extend its service life.
- Delivery status
- Pre-hardened state, hardness
3~
-.
- Chemical composition
- Chemical composition of the steel (mass fraction)
:~
-,
3
-,
~
- ,
~
- ,
~
- ,
~
- ,
- ,
- .
- Reference corresponding grades
- Hitachi, Japan
- Standard grades
-, Datong, Japan
- Standard grades
-, Ronggang, Taiwan, China (
/>R
- ) Standard grade
-, South Korea
- Standard grade
-, United States
- Standard grade
- Optimized.
- Quenching and tempering specifications
- Quenching temperature
~
- ℃, tempering temperature
~
- ℃, hardness
~
-.
- Gas nitriding specifications
- Soft nitriding temperature
- ℃, nitriding time
-, surface hardness
-.
- Typical application examples
-) Mirror polished molds, dust-proof, TV filter plates, cosmetic boxes, precision wrinkle processing molds.
-) Office automation equipment, automobile parts EDM molds.
-) Transparent parts such as car ceiling lights, refrigerator vegetable boxes, lighting lamps, etc.
Imported NAK80 mold steel, Japanese material NAK80