SUS304L stainless steel material

SUS304L stainless steel, also known as ultra-low carbon stainless steel, is a versatile stainless steel material widely used in the production of equipment and parts that require good overall performance (corrosion resistance and formability).

SUS​​​​​​​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: 9.0～12.0,
Sulfur S: ≤0.03,
Phosphorus P: ≤0.045;

SUS​​​​​​​304L stainless steel Mechanical properties
Yield strength (N/mm2) ≥205
Tensile strength ≥520
Elongation (%) ≥40
Hardness HB ≤187 HRB≤90 HV ≤200
Density 7.93 g·cm-3
Specific heat c(20℃) 0.502 J·(g·C)-1
Thermal conductivity λ/W(m·℃)-1 (at the following temperature/℃)
20 100 500
12.1 16.3 21.4
Linear expansion coefficient α/(10-6/℃) (between the following temperatures/℃)
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℃

SUS​​​​​​​304L stainless steel has poor forging performance and is difficult to deform.
Due to work hardening. So that the amount of deformation in the process of pulling the core rod can not be given too much. And the heat loss is large. Therefore, it must be formed under the teaching of more fires. If the treatment at the high-temperature insulation stage is not good, it will cause coarse crystals.

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