Q345R steel (16MnR) is a low-alloy high-strength steel. It is a special plate for pressure vessels with a yield strength of 340MPa min. Q345R plate has good comprehensive mechanical properties and technological properties. The phosphorus and sulfur contents are slightly lower than the low-alloy high-strength steel plate Q345 steel (16MnR). In addition to the increased tensile strength and elongation requirements compared to Q345B steel, A572 Gr 42 ms steel, the impact toughness is also required.
S460MC hot-rolled automobile structural steel chemical composition (melting analysis)% C: ≤0.12, Si: ≤0.50, Mn: ≤1.60, P: ≤0.025, S: ≤0.015, Alt: ≥0.015, Nb: ≤0.09, V: ≤0.20, Ti: ≤0.15 Mechanical properties Yield strength MPa: ≥460 Tensile strength MPa: 520-670 Elongation: ≥14
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