1.4122 - AT A GLANCE
What kind of steel is the 1.4122?
The 1.4122 (X39CrMo17-1) 420RM shows outstanding mechanical properties with good corrosion resistance that can be polished to a high gloss finish. Due to the added chromium, up to 17%, it has a higher corrosion resistance compared to stainless steels with for example 13% of chromium.
Though it has a good corrosion resistance, this stainless steel should not be used in seawater but can be used in freshwater for valves or pump shafts for marine- or mechanical engineering for instance.
Properties
With a good balance between corrosion resistance, performance, mechanical properties and durability, 1.4122 stainless steel is a good choice when high hardness, toughness and wear resistance are required for knives or machine parts, for example. Environmental conditions should be considered as the corrosion resistance of 1.4122 may be limited in chlorides and extreme pH values.
- Quenched and tempered chromium steel
- Good polishability
- Good heat resistance
- Good wear resistance
- Very good mechanical properties
- Acid resistant
- Corrosion resistant
- Magnetizable
- Nitridable
- Polishable
- Poor weldability
Applications
Stainless steel 1.4122 has a good combination of mechanical properties and corrosion resistance which lends itself for applications like cutting tools, mechanical components, pump and valve parts, surgical and dental instruments, the food industry as well as for machine parts.
As a martensitic steel it can be hardened to a high level to provide good wear resistance and a long lasting cutting edge. Care should be taken when exposing the material to environments with chlorides and extreme pH levels.
- Mechanical engineering
- Marine engineering
- Apparatus engineering
- Plastic processing
- Plastic molds
- Extrusion tools
- Press molds
- Fitting tools
- Shafts
- Spindles
- Bolts
- Pistons
- Valves
- Steam valves
- Water valves
- Beater bars
- Fittings parts
- Pump construction
- Pump rods
- Compressor construction
- Compressor parts
- Surgical Instruments
