Our company will set up a full-time service engineer for the project, who is responsible for the interface and coordination of technical support and after-sales service of the sa709gr50 asme bridge steel project. In response process of customer service center, in case of technical support and after-sales service demand, the user shall contact the full-time engineer of sa709gr50 asme bridge steel customer service center, and the technical personnel will give corresponding answers and on-site treatment according to the needs of users.
The sa709gr50 asme bridge steel steel making furnace can only be used as primary refining, and the refining needs to be completed in the refining equipment outside the furnace, which is also called secondary refining. It is mainly through decarburization, desulfuration, denitrification and dephosphorization to improve the cleanness of the steel, to establish a chromium molybdenum low alloy steel with good oxidation resistance and high temperature strength, to remove unwanted harmful impurities from the steel, and to improve the sa709gr50 asme bridge steel internal quality of the steel.
QSTE380TM material is a cold-formed hot-rolled pickled automotive structural steel.chemical compositionC: ≤0.12, Si: ≤0.35, Mn: ≤1.40, P: ≤0.03, S: ≤0.025, Alt: ≥0.01Mechanical propertiesYield strength MPa: ≥380Tensile strength MPa: 450-590Elongation: ≥23
we develop very well through those years even the external environment is not conducive to the whole steel industry. With the prosperity of our group, our company always bear its staff who contributes to its growth in mind, and always on the way to improve welfare and treatment. That makes us staff and work with pleasure. On the other way, they creat a better and stronger our group. That may be one of the key factors why we develop so rapidly those years. Here we can say proudly “we are family”.