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Galvanized Square Steel Pipe ERW Carbon Tube
GradeChemical CompositionMechanical PropertiesCMnSiSPYieldTensileElongatiStrength MpaStrenth Mpa-on %Q1950.06-0.120.25-0.50≤0.30≤0.045≤0.05≥195315-430≥33Q2150.09-0.150.25-0.55≤0.30≤0.05≤0.045≥215335-450≥27Q2350.12-0.200.30-0.67≤0.30≤0.045≤0.04≥235375-500≥