1.4301 Stainless Steel - An Overview

EN 10088-2 1.4301 X5CrNi18-10 Stainless Steel is one of the the most widely used stainless steels and also known as 18/8 (Old name) which links to 18% chromium and 8% nickel. Where 1.4301 is the EN material number and X5CrNi18-10 is the steel designation name. And is a Austenitic stainless steel. Let us look at more detailed material properties of 1.4301 Stainless Steel.

1.4301 Mechanical Properties

Density 7900 kg/m3
Young’s Modulus (Modulus of elasticity) at 20°C is 200 GPa
Tensile Strength - 520 to 720 MPa or N/mm2
Yield Strength - Can not be defined, so 0.2% proof strength is 210 MPa

1.4301 Hardness

For cold rolled strip with thickness below 3mm HRC 47 to 53 & HV 480 to 580
For cold rolled strip above 3mm & hot rolled strip HRB 98 & HV 240

1.4301 Equivalents

• AISI/ ASTM Equivalent for 1.4301 (US Equivalent)
  • 304
• UNS Equivalent for 1.4301
  • S30400
• SAE Grade
  • 304
• Indian Standard (IS) / British Standard Equivalent for 1.4301
  • EN58E 1.4301

Chemical Composition

Corrosion Resistance

Good corrosion resistance against water, but never used in presence of sulfuric acid in any concentration

1.4301 vs 1.4305

1.4301 is machinability is very low but 1.4305 is a very good machinability 1.4301 is having very good weldability but 1.4305 is not good for welding

1.4301 vs 1.4307

1.4307 is a low carbon version of 1.4301, with improved weldability

Other Facts About 1.4301 Stainless Steel

• 1.4301 K240 is the most common grounding profile (grain size) used
• Welding method most suited for stainless steel is TIG welding, and the welding process code for weld symbols on drawing is 142
• 1.4301 Data Sheet can be found with on the websites of the steel producers, here are some of the links.
  • http://www.s-k-h.com/media/de/Service/Werkstoffblaetter_englisch/Edelstahlrohre/1.4301_engl.pdf
  • http://www.swissprofile.com/data/documents/fiches-techniques/EN/304.pdf

Labels: ASTM, Engineering Materials, feature, Steel