What are the basic requirements for EN 10083-3 alloy steel grade 50CrMo4 cutting and after-cutting
Standing at a new historical starting point, we adapt to the requirements of supply side EN 10083-3 alloy steel grade 50CrMo4 structural reform, adhere to the overall strategy of "innovation driven, quality leading, quality improving and efficiency increasing, transformation and development", and constantly improve the development concept and development level with a forward-looking vision and grand vision. Now we have been ranked the International leading EN 10083-3 alloy steel grade 50CrMo4 steel materials supplier.
Structural steel S355JR, S355J0, S355J2G, S355J2G4 are low-alloy high-strength structural steels that comply with the European standard EN10025. S355JR steel in China is a low-alloy high-strength structural steel with a hardness of 70-80B and a yield strength of 300-400MPa. S355J2G3 steel is roughly equivalent to GB Q345D. S355J2G3 means that the delivery state is normalized, and the impact energy at -20°C is 27J. G3 and G4 mean the deoxidation method.
Ordinary carbon structural steel EN 10083-3 alloy steel grade 50CrMo4 has many impurities and low price. The ordinary carbon structural steel is used in places with low performance requirements and low strength, but it has good plasticity, toughness and cold deformation performance. High quality carbon structural steel has less harmful impurities, and its strength, plasticity and toughness are better than those of ordinary carbon structural steel. High quality carbon structural steel is mainly used to manufacture important mechanical parts.
EN 10083-3 alloy steel grade 50CrMo4, Q345C steel plate is a kind of weldable low carbon engineering structure material, which is generally produced by continuous rolling mill. The carbon content of Q345C steel plate is less than 0.25%. The yield strength σ0.2 of Q345C steel plate is 300- 800MPa and the yield ratio is 0.65- 0.95. Q345C steel plate has excellent low temperature toughness. That is mainly owe to the solid solution of alloy elements (Mn, Si, Al, Cr, etc.), grain refinement (Nb, V, Ti, etc.), precipitation hardening (Nb, V, Ti, etc.), phase transformation strengthening (Mn, Si, Mo, etc.), and controlled rolling and controlled cooling, etc. new technologies.
Chemical composition of saph440 pickled automobile steel plate (melting analysis)%C: ≤0.21, Si: ≤0.30, Mn: ≤1.50, P: ≤0.030, S: ≤0.025, Al: ≥0.01Mechanical properties of saph440 steelYield strength MPa: ≥305MpaTensile strength MPa: ≥440MpaElongation: ≥34
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