304L is a variant of 304 stainless steel with a lower carbon content for applications requiring soldering. The lower carbon content minimizes the precipitation of carbides in the heat affected zone near the weld, which may result in intergranular corrosion (weld erosion) in certain environments.

Widely used in the production of equipment and parts that require good overall performance (corrosion resistance and formability).

Analysis of 304L stainless steel chemical composition%

Carbon C: ≤ 0.03,Silicon Si: ≤1.0,Manganese Mn: ≤2.0,Chromium Cr: 18.0~20.0,

Nickel Ni: 9.0 to 12.0,Sulfur S: ≤0.03Phosphorus P : ≤ 0.045;

Mechanical properties
Mechanical properties of 304L stainless steel:
Yield strength (N/mm2) ≥ 205,Tensile strength ≥520,Elongation (%) ≥ 40,Hardness HB ≤187,HRB≤90 HV ≤200

Stainless steel rod
Density 7.93 g·cm-3,Specific heat c (20 ° C) 0.502 J · (g · C) -1

Thermal conductivity λ/W(m·°C)-1 (at the following temperature/°C)
20 100 500
12.1 16.3 21.4
Linear expansion coefficient α / (10-6 / ° C) (between the following temperatures / ° C)
20～100 20～200 20～300 20～400
16.0 16.8 17.5 18.1   ,Resistivity 0.73 Ω·mm2·m-1   ,Melting point 1398～1420°C