Home Materials Library Stainless Steel 303 / 1.4305 / X10CrNiS18-9

Stainless Steel 303 / 1.4305 / X10CrNiS18-9

Alternative Designations: X10CrNiS18-9; X8CrNiS18-9 (ISO) | 303 (AISI) | 303 (SAE) | S30300 (UNS) | Z8CNF18-09 (AFNOR) | 303S31 (BS) | 2346 (SIS) | SUS303 (JIS)

Price range:

€€€€€

Colors:

Any color is achievable with finishing

Description:

It is an austenitic chromium-nickel stainless steel with sulfur added to its composition. The result is a material with improved machinability, but with reduced corrosion resistance. This material is therefore ideal for use in environments where corrosion is not a major concern, such as in the food processing industry. In terms of its mechanical properties, X10CrNiS18-9 is a fairly tough material. It is also quite ductile, with an elongation at break of around 31%.

Material Properties

Processes:

CNC Machining

Property	Value, metric	Value, Imperial
Density	8.03 g/cm³	8.03 g/cm³
Elongation at Break	31%	31%
Hardness	234	234
Ultimate Tensile Strength	398 MPa	58 ksi

CNC machined part without surface finishes (3D render, aluminium)

Bead blasting (3D render)

Bead blasting

Bead blasting involves spraying a pressurised stream of tiny beads of media, plastic or glass beads, from a nozzle onto the surface of the part. This removes the burrs and imperfections, leaving a smooth finish.

Notes:

The recommended part size is 6-600 mm in both height and width. Smaller parts are hard to hold and tough to produce an even surface.
Final result:
- Uniform, matte or satin-like appearance
- Slightly grainy in the touch
Electroless nickel plating

Electroless nickel plating provides a uniform nickel coating, which offers protection from corrosion, oxidation, and wear on irregular surfaces.
Final result:
- Protection from corrosion, oxidation and wear on irregular surfaces
- Brighter appearance
Electropolishing

An electrochemical process that cleans steel parts to reduce corrosion and improve appearance by making the metal brighter.
Final result:
- Reduced corrosion
- Brighter appearance
Gold plating

Gold plating provides good corrosion and tarnish resistance. Gold has low contact resistance, excellent conductivity, and solderability.
Final result:
- Gold-like appearance
- Increased corrosion and tarnish resistance
Passivation

A colorless coating that improves corrosion resistance for 200 and 300 series and precipitation hardened corrosion-resistant steels by removing free iron from the surface.
Powder coating

Provides a continuous, protective color finish on parts using evenly applied, heat-cured paint. The finish is usually tougher and even compared to conventional painting.

Notes:

Metals like aluminium and steel can be efficiently coated with polymer powders.
Available colors:
- Any custom RAL color
Custom Finishing

If you select a custom finish in the Instant Quoting Engine it will require manual review. Manual quoting usually takes 1-2 business days.

Notes:

Submitting for manual review with a custom request does not guarantee a quote.