Stainless steel medium and thick plates refer to steel plates with a thickness ranging from 4 to 25.0 mm. Depending on the thickness, it can be further subdivided into:
Thicknesses between 25.0 and 100.0 mm are called thick plates.
Plates with a thickness exceeding 100.0 mm are called extra thick plates.

Physical properties: Its boiling point is 872°C (some say it is 2730°C), melting point is 1398°C, density is 7.93g/cm³, thermal conductivity is 20W/m·K, and elastic modulus is 190MPa (or 190GPa, 1GPa=1000MPa). Mechanical properties: High plasticity, toughness and mechanical strength. The tensile strength specimen can continue to elongate without increasing the force during the tensile test, and the elongation is not less than 5% during the tensile test.

Corrosion resistance: atmospheric corrosion resistance, acid resistance, pitting and crevice corrosion resistance, and stress corrosion cracking resistance are all good, but the specific performance is related to alloy factors.

Heat resistance: Good high temperature strength, but slightly inferior to some high temperature alloys; high temperature brittleness, high temperature oxidation and sulfidation performance are also good.

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