EN 1.4305 (X8CrNiS18-9) Stainless Steel | AISI 303| Chemical Composition, Equivalent Grade, Datasheets| Alokindia.com

1.4305 Stainless Steel

All You Need to Know About Austenitic, Readily Machinable Stainless Steel X8CrNiS18-9, 1.4305, SIS2346


What is 1.4305 Stainless Steel Grade

The 1.4305-grade stainless steel is austenitic stainless steel known popularly as grade 303 stainless steel. It is the most readily machinable of all austenitic stainless steels grades available. The corrosion resistance might be slightly lower than some of the grades and may vary depending on the sulfur content.


The 1.4305-grade stainless steel has the following properties:

  1. Good machinability
  2. Excellent toughness
  3. Average corrosion resistance


Why use 1.4305 Stainless Steel

The 1.4305- stainless steel grade tough. The free-machining austenitic stainless steel is suitable for the production of details that require good resistance to atmospheric corrosion. By cold working, the stainless steel can also be made slightly magnetic. It can also be hardened by cold working.


What is the chemical composition of 1.4305 stainless steel?

The chemical composition of 1.4305 stainless steel is:

1.4305 steel chemical element % present
Carbon (C) [Max] 0.1%
Manganese (Mn) [Max] 2.00%
Silicon (Si) [Max] 1.00%
Chromium (Cr) 17.0 to19.0%
Copper (Cu) [Max] 1.00%
Nitrogen (N) [Max] 0.11%
Nickel (Ni) 8.00 to 10.0%
Phosphorus (P) [Max] 0.045%
Sulphur (S) [Max] 0.15 to 0.35%


How to work with 1.4305 steel

1.4305 steel hot work and heat treatment temperature
Hot Forming °C Soft Annealing °C Sensitization °C
1200 to 900 1150 to 1040 800 to 450
Cooling with Water and Air


1.4305 stainless steel applications

The main areas of applications of 1.4305 stainless steel include:

  1. Construction
  2. Fittings
  3. Pumps
  4. Bolts


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