SUS304L 

 Basic austenitic steel, the most widely used, excellent heat resistance, corrosion resistance, low temperature strength and mechanical properties, single-phase austenite, no hardening heat treatment (non-magnetic, temperature-196-8000C). SUS304 with all the features, excellent corrosion resistance and heat resistance; welding or eliminate stress, can also maintain good corrosion resistance, drawability, polishing resistance. 
 Feature 
 SUS304L SUS304 with all the features; corrosion resistance and heat resistance; welding or eliminate stress, can also maintain good corrosion resistance; drawability, polishing resistance. 
 Use 
 Applied to high resistance to intergranular corrosion of the chemical, coal, oil equipment and supplies for the environment; outdoor decorative materials, heat-resistant parts and difficult parts heat treatment 

 Physical properties 
 Chemical composition 
 Carbon (C) ≤ 0.030 Manganese (Mn) ≤ 2.00 Silicon (Si) ≤ 1.00 phosphorus (P) ≤ 0.045 Sulfur (S) ≤ 0.03 Chromium (Cr) 18.00 ~ 20.00 Nickel (Ni) 9.00 ~ 13.00 
 Mechanical Properties 
 Tensile strength σb (MPa) ≥ 520, the conditions yield strength σ0.2 (MPa) ≥ 205, elongation δ5 (%) ≥ 40, Reduction of ψ (%) ≥ 60, Hardness: ≤ 187HB; ≤ 90HRB; ≤ 200HV SUS304L and SUS304 difference: SUS304L and SUS304 characteristics and chemical composition of the carbon content is not the same. SUS304L SUS304 with all the features; corrosion resistance and heat resistance; welding or eliminate stress, can also maintain good corrosion resistance; drawability, polishing resistance. Applied to high resistance to intergranular corrosion of the chemical, coal, oil equipment and supplies for the environment; - outdoor decoration materials, heat-resistant parts and heat treatment difficult parts. ≤ 0.03 SUS304 SUS304L austenitic carbon steel base, the most widely used: excellent corrosion resistance and heat resistance; low-temperature strength and excellent mechanical properties; single-phase austenite, no hardening heat treatment (non-magnetic, with temperature of -196 - 800 ℃). SUS304 carbon ≤ 0.08