1.2311 - AT A GLANCE

What kind of steel is the 1.2311?
The 1.2311 (40CrMnMo7) is delivered as pre-hardened material and can be used in its delivered condition which is beneficial when making moulds. In general, 1.2311 tool steel is mainly used for plastic moulds, die casts and tools but is also suitable for applications such as rails and shafts. The steel grade has good weldability and can be polished to an excellent finish.
It has a high through-hardenability and uniform component strength which is an advantage when maintaining consistent performance of tools and moulds. For a higher hardness the 1.2311 can be further hardened but its hardenability is compared to other tool steels limited. In addition this steel grade is not suited for applications with high stresses.

Properties
As a tool steel the 1.2311 is a dependable and accomplished choice when it comes to moulds, dies and tools. It has a great balance of machinability and toughness and is easy to polish which again is beneficial to the finish of the moulded products.
- Quenched and tempered cold work steel
- Plastic mould steel
- Polishable, better than 1.2312
- Etchable
- High through-hardening
- Uniform component strength
- Nitridable
- EDM machinable

Applications
No further heat treatment for the 1.2311 is intended, this makes it usable as delivered and without any delays.
As further heat treatment is not needed the risks of distortion during the heat treatment are eliminated and needed properties like high wear resistance, toughness for moulds, dies, jigs and tooling is evenly spread throughout.
- Mechanical engineering
- Jigs
- Base plates
- Assembling parts
- Moulding frames
- Plastic molds
- Plastic processing
- Injection moulds
- Die casting moulds
- Hydroforming tools
- Recipient sleeves
- Intermediate sleeves
- Folding bars
- Tool holders
- Extrusion presses
- Tube presses
- Die holders
- Die insert