1.4125 - AT A GLANCE
What kind of steel is the 1.4125?
The 1.4125 is a high carbon steel. As a martensitic, medium corrosion resistant cold work and plastic mold steel, it has good machinability, excellent polishing properties, low distortion, good hardness, and good wear resistance.
When correctly heat treated the 1.4125 has the capability to reach the highest strength, hardness and wear resistance among the corrosion and heat resistant stainless steels.
The corrosion resistance for 1.4125 is lower than for the usual austenitic grades, and the useful operating temperature range is limited due to loss of ductility at temperatures below zero and loss of strength due to over-tempering at higher temperatures as well as the reduction in corrosion resistance.
Properties
Due to its higher carbon content, the 1.4125 has a higher hardness compared to most other stainless steels and can be hardened up to 60 HRC. The high hardness makes it a very good knife steel, as it has very good edge retention and wear resistance.
- Stainless steel
- Martensitic steel
- Cold work steel
- Plastic mold steel
- High hardness
- High wear resistance
- Good edge retention
- Higher carbon content
- Limited acid resistance
- Polishable
- Low distortion
Applications
Stainless steel 1.4125 can be used for knives in the food industry like frozen food cutters, porpk and beef cleaving knives and for fish filleting blades as well as accessories for meat grinders.
- Ball bearings
- Bushings
- Valve parts
- Cutlery
- Knives
- Blades
- Nozzels
- Pump parts
- Medical-, surgical- and dental instruments
