Chinese Standard Carbon Structural Steel Specification

Here we show the difference between Q195, Q215, Q235  steel, these series steel all belong to Chinese standard carbon structural steel, the lising below shows the difference of chemical composition and mechanical properties.

Chemical Composition
Steel SeriesSteel GradeC % (≤)Si % (≤)Mn (≤)P (≤)S (≤)
Q195Q1950.120.300.500.0350.040
Q215 SeriesQ215A0.150.351.200.0450.050
Q215B0.150.351.200.0450.045
Q235 SeriesQ235A0.220.351.400.0450.050
Q235B0.200.351.400.0450.045
Q235C0.170.351.400.0400.040
Q235D0.170.351.400.0350.035
Mechanical Properties (N/mm2 = Mpa)
GradeYield StrengthTensile Strength
Q195195315-430
Q215215335-450
Q235235370-500