Basic austenitic steel, the most widely used, heat resistance, corrosion resistance, excellent 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 a good corrosion resistance, drawability, polishing resistance.
Feature
SUS304L SUS304 with all the features; excellent corrosion resistance and heat resistance; welding or eliminate stress, can also maintain a good corrosion resistance; drawability, polishing resistance.

Use
Applied to the high resistance to intergranular corrosion chemical, coal, oil instruments and equipment in the environment; outdoor decoration materials, heat-resistant parts and heat treatment difficult parts.
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 [1] Nickel (Ni) 9.00 ~ 13.00 [2]
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