1.2083 Stainless Tool Steel (X40Cr14)  | Corrosion Resistant Mould Steel – Nifty Alloys

When you need a stainless tool steel to provide excellent performance in demanding conditions, 1.2083 Stainless Tool Steel fits the bill perfectly. With its high corrosion resistance, hardness and very good polishability, this grade is typical to be found in widespread use in the plastic moulding sector and mirror finishes are specified.

At Nifty Alloys, we offer top-grade 1.2083 Stainless Tool Steel in plates, blocks, and round bars so that you receive material to international standards. Whether you are located in Asia, Europe, the Middle East, or the Americas, we offer stable sourcing, precise machining, and quick shipping to aid your endeavors.
 

What is 1.2083 Stainless Tool Steel?
 

1.2083 steel, or X40Cr14 (DIN norm) and AISI 420, is a martensitic stainless tool steel. It is designed with a high chromium content (around 13%), which makes it highly resistant to corrosion, acids, and water.

Because of this aspect, it is particularly well-suited for:

• Plastic moulds in the medical, food, and optical industries.
   
• Hygiene applications, protection from rust, and polishability requirements.

It falls under the category of stainless mould steel, along with the 1.2316 and 420 modified steels types.

Key Features & Properties of 1.2083 Tool Steel

• Excellent Corrosion Resistance – Ideal for plastic molding with corrosive polymers such as PVC, acetates, or for humid working conditions.
• High Polishability – Can achieve an optical-quality mirror finish, perfect for transparent plastic parts.
• Good Wear Resistance – Suitable for long production runs.
• High Hardness – Can be hardened up to 50–54 HRC depending on the heat treatment.
• Dimensional Stability – Maintains shape and precision after hardening.
• Good Machinability in Annealed Condition – Allows for easier fabrication before final hardening.