The ASTM A285 Pressure Vessels steel plate chemical composition and mechanical properties

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ASTM A285 Alloy Steel Chemical Requirement

Steel Grade The Element Max (%)
C Si Mn P S
A285 grade A 0.17 0.08-0.45 0.98 0.035 0.035
A285 grade B 0.22 0.08-0.45 0.98 0.035 0.035
A285 grade C 0.28 0.08-0.45 0.98 0.035 0.035

ASTM A285 Alloy Steel Tensile Requirements

Grades Thickness Yield strength Tensile strength Elongation
A285 grade A mm Min Mpa Mpa Min %
6-50 165 310-450 0.3
50-200 165 310-450 0.27
A285 grade B 6-50 185 345-485 0.28
50-200 185 345-485 0.25
A285 grade C 6-50 205 380-515 0.27
50-200 205 380-515 0.23

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