What is the application scope of S420MC construction-machinery high-strength steel

The company specializes in the research and development, production and sales of S420MC construction-machinery high-strength steel seamless pipes, longitudinally welded pipes, large-diameter welded pipes, API 5L welded pipes, spiral welded pipes, and larg

The company specializes in the research and development, production and sales of S420MC construction-machinery high-strength steel seamless pipes, longitudinally welded pipes, large-diameter welded pipes, API 5L welded pipes, spiral welded pipes, and large-diameter thick-walled straight seam steel pipes. The company has S420MC construction-machinery high-strength steel five production lines in three major production workshops: large-diameter longitudinally welded pipe production workshop,S420MC construction-machinery high-strength steel rolled steel pipe production workshop, and thermally expanded steel pipe production workshop, with an annual production capacity of more than 100,000 tons.

S420MC construction-machinery high-strength steel, Wear resistant steel plate is widely used, sometimes it needs to be bent, rolled and cut. Since the wear resistant layer is closely combined with the base plate through metallurgical processing, there is no problem with bending and rolling the wear resistant steel plate under normal conditions. However, if the rolling diameter is less than 300 mm, it will cause problems, so it is not recommended to roll under 300 mm.

Heat treatment advantages of S420MC construction-machinery high-strength steel, SA516 Gr 70 pressure vessel steel:
1) SA516 Gr 70 pressure vessel steel quenching: The hardness of SA516 Gr 70 pressure vessel steel is increased, but the toughness is decreased.
2) SA516 Gr 70 pressure vessel steel normalizing: Improve strength and toughness.
3) SA516 Gr 70 pressure vessel steel annealing: Eliminate quenching effect, eliminate stress, uniform composition.
4) SA516 Gr 70 pressure vessel steel tempering: Uniform composition, slightly reduce hardness, greatly improve toughness.

The composition characteristics of low alloy high strength steel are low carbon ≤0.20%, low alloy, and total alloying elements is less than 3%. The low carbon content is to meet the process performance requirements of S420MC construction-machinery high-strength steel, low alloy high strength steel for engineering structural parts such as plasticity, toughness, weldability and cold deformation; adding a small amount of alloying elements (mainly Mn) to achieve the purpose of improving mechanical properties. Mn not only has a significant strengthening effect on ferrite, it can also reduce the cold brittle temperature of steel, increase the amount of pearlite in the steel, and further improve the strength.

S420MC construction-machinery high-strength steel, Chinese material Q235B is one of the most widely used carbon steel in the world. Some like to compare its strength with other equivalent steel grades. We need to take care that the Q235B steel strength varies with thickness. For the min. yield strength of Q235B steel plate: it is 235Mpa if thickness ≤16mm, 225 Mpa for thickness 16-40mm, 215 Mpa for thickness 40-60mm, 205 Mpa for thickness 60-100mm, 195 Mpa for thickness 100-150mm, 185 Mpa for thickness over 150mm. The tensile strength of Q235B steel plate is 375-500 Mpa.

The company will rely on its good reputation, excellent hot-rolled plates, steel pipes, steel structure products, and intimate S420MC construction-machinery high-strength steel after-sales service to customers. I would like to express my heartfelt thanks to the old and new friends and customers who have always given care, support and help to the company! The company sincerely hopes to establish a long-term cooperative relationship with them, mutual benefit and common development. Welcome to come and visit our S420MC construction-machinery high-strength steel steel mill.

Before delivering our hot rolled plate product we apply various tests to check the quality of carbon steel S420MC construction-machinery high-strength steel plates such as- mechanical test, chemical test, hardness test, toughness test, eddy current test, impact test, micro test, flaring test, flattening test, etc. We are provided best packing for structural steel plates to avoid rust. Our after-sales service team will contact you if you have any question.