304/304L

*Type Austenite

Characteristics

    - 304 : Most widely used steel type because of its good corrosion resistance, thermal resistance, strength at low-temperature and mechanical properties.
    - 304L : Low-carbon 304 stainless steel. It is excellent in intergranular corrosion resistance.

Chemical compositions and physical properties

Designations Chemical compositions (%) Mechanical properties Physical properties
 JIS   POSCO   C   Cr   Ni   Mo   Orthers   Yield 
 Strength 
 N/mm² 
 Tensile 
 Strength 
 N/mm² 
 Elongate 

 % 
 Hadness 

 Hv 
 Specific 
 Heat 
 J/gºC 
 Specific 
 Gravity 
 Thermal 
 Expansion 
 Coefficient 
 W/m-ºC 
 Thermal 
 Conductivity 
 W/m-ºC 
 304 
 304L 
 304 
 304L 
 ≤0.08 
 ≤0.03 
 18.0~20.0 
 18.0~20.0 
 8.0~10.5 
 9.0~13.0 
 - 
 - 
 - 
 - 
 ≥205 
 ≥175 
 ≥520 
 ≥480 
 ≥40 
 ≥40 
 ≤200 
 ≤200 
 0.50 
 0.50 
 7.93 
 7.93 
 17.3 
 17.3 
 16.3 
 16.3 

Applications

    - Most household products, water tanks, ..
    - Spare parts of means of transport ..
    - Medical instruments, construction materials, materials of some industries ...