JIS G4303 SUS304 and DIN 17440 X5CrNi18 - 10 are equivalent stainless - steel round bars. They both have a minimum yield strength of 205 MPa and a tensile strength in the range of 515 - 795 MPa. The elongation percentage is typically around 40%, which indicates good ductility, allowing for easy forming into various shapes. These grades are highly resistant to corrosion due to their high chromium (18 - 20%) and nickel (8 - 10.5%) content. The high nickel content also contributes to their excellent toughness, enabling them to withstand impact loads without cracking. They are suitable for applications where corrosion resistance is crucial, such as in the food and beverage industry (e.g., for equipment like pipes and fittings), medical devices, and architectural applications in coastal areas. The mechanical properties of these two equivalent grades are consistent across different international standards, ensuring that products made from them can be used interchangeably in global markets.