What factors affect S420ML equivalent ASTM price

The weight of seamless steel pipe is only 1 / 5 of that of square steel. Seamless steel pipe corrosion resistance acid, alkali, salt and atmospheric environment corrosion, high temperature resistance, good impact and fatigue resistance, do not need regular maintenance. The effective service life of product S420ML equivalent ASTM more than 15 years.

45# steel is high-quality carbon structural steel with low hardness and easy cutting. After quenching and tempering, the parts have good comprehensive mechanical properties. 45# steel is widely used in motorcycles and automobiles, especially those connecting rods, bolts, gears and shafts that work under alternating loads, huge friction, usually quenching method to improve its own hardness, wear resistance and service life.

The company adheres to the S420ML equivalent ASTM business tenet of "integrity casting strength, cooperation creating win-win", takes value-added service of supply chain as the tenet, and under the premise of existing market, bulk trade, logistics distribution and other advantages, develops a new comprehensive steel industry model combined with informatization. And will continue to provide customers with high-quality steel products and good service. We sincerely welcome new and old customers to join hands with our company S420ML equivalent ASTM and seek common development!

Hydrogen (H) is the most harmful element in general steel such as S420ML equivalent ASTM. Hydrogen dissolved in steel will cause hydrogen embrittlement, white spots and other defects. Hydrogen, like oxygen and nitrogen, has very little solubility in solid steel. It dissolves into liquid steel at high temperature, and accumulates in the structure without time to escape when cooling, forming high-pressure micro pores, which greatly reduce the plasticity, toughness and fatigue strength of steel, and even cause cracks and brittle fracture in severe cases. "Hydrogen embrittlement" mainly occurs in martensitic steel, but not very prominent in ferrite steel, and generally increases with hardness and carbon content.