Introduction of SUS 304 for You from NO.2 Machinery

SUS 304 is one of the most widely used stainless steel. SUS 304 is a kind of chrome-nickel stainless steel with good corrosion resistance, heat resistance, strength, and mechanical properties, without hardening when heated (-196℃～800℃).

The most important elements of 304 are Ni and Cr, these impact straightly its corrosion resistant and its value. Generally, we could regard the stainless steel with Ni of more than 8% and Cr of more than 18% as SUS304.

Normally, SUS 304 is used in food industry, medical equipments, furniture, cars, etc. SUS304 is recognized as food grade stainless steel.

Chemical Analysis

C ≤0.07

Si ≤1.00

Cr 17.00-19.00

Mn ≤2.00

Ni 8.00-11.00

P ≤0.035

S ≤0.030

Mechanical Properties

Ys  205 Mpa

Ts  520 Mpa

Elongation 40%

Hardness ≤187HB; ≤90HRB; ≤200HV

Density 7.93 g/cm-3