Tool steel plate - M303EX

Alloy: M303EX Sheet form: Round bar
Application
- Precision mechanical industry: Used in the production of small components that require high precision such as shafts, screws, and other mechanical parts.
- Automation industry: Applied in machinery parts that require durability and abrasion resistance.
- Medical equipment: Used in surgical tools and medical equipment thanks to its high corrosion resistance and durability.
Hardness
Certification
AS9100, ISO 9001:2015, ISO 14001:2015
Standard
JIS, ASTM, EN, DIN, GB, AMS, UNS...
Chemical composition (%)
Chemical composition:
- Chromium (Cr): About 17-19%, providing good corrosion resistance.
- Nickel (Ni): About 8-10%, helps maintain austenitic structure, increases durability and corrosion resistance.
- Manganese (Mn): Added to improve machining properties and ductility.
- Sulfur (S): Higher content, helps enhance machinability but may affect corrosion resistance.
- Phosphorus (P): Maximum 0.20%, helps improve flexibility and hardness.

Physical properties:
- Good corrosion resistance: Despite the higher Sulfur content, M303 EXTRA still retains significant corrosion resistance in common environments.
- Outstanding machinability: With increased Sulfur content, this steel is much easier to machine than other stainless steels, especially in applications requiring high precision and high volume production requirements.
- Mechanical durability: Still maintains good mechanical durability, suitable for applications requiring load-bearing capacity and durability.
Hotline
Order quickly
Chat with us
Go to top