Description:

304 and 303 are made of stainless steel, but the composition is different. SUS303 and SUS304 are called by Japan, while China is called y1cr18ni9 and 0Cr18Ni9 respectively. In China, international chemical element symbols and domestic symbols are used to represent chemical components, and Arabic letters are used to represent component content.

The chemical composition difference between them can be seen from the structural formula. These two kinds of anti-corrosion ability are very good, but 304 is better; the comparison of related materials, the experimental data shows that stainless steel can be coated with anti rust oil in other cases of rust after 168 hours of salt spray experiment, but the effect is limited, which is inconvenient for production and installation, mainly depends on what kind of effect you want to achieve, what kind of material you are choosing, and the current comparison standard Quasi order: ordinary blue white zinc plated carbon steel < black zinc plated carbon steel < galvanized nickel carbon steel < stainless steel.

SUS304

Difference between SUS303 and SUS304:

As a low carbon steel, the main difference is the carbon content is different:

The carbon content of SUS303 is less than or equal to 0.15%;

The carbon content of SUS304 is less than or equal to 0.08%.

In fact, the sulfur content of SUS304 is much smaller than that of SUS303.

SUS303: P≤0.20% , S≤0.15%.

Haihao Group manufacture steel pipes, flanges and pipe fittings products more than 30 years,the products sells well all over the world for the high quality.If you have any question,please contact us! Email:sales@haihaogroup.com