Mechanical characteristics

Molybdenum and molybdenum alloys due to its excellent mechanical and chemical properties in the manufacturing sector has been widely used.
Mechanical characteristics:
Molybdenum has excellent properties: melting point, high creep resistance and low thermal expansion and so on. Generated by the addition of other metals molybdenum alloy, these performance has been significantly strengthened. According to the user's application environment and operating temperature, Lighthouse Group can provide to the user the most suitable pure Molybdenum crucible or molybdenum alloy.
Chemical characterization:
Atmosphere without oxygen, molybdenum variety of acids, liquid metal and the molten glass has a very good resistance to corrosion. At 1100 ° C or less, Mo in hydrogen, nitrogen, ammonia and relatively stable molybdenum and steel welding a) molybdenum and steel welding - brazing molybdenum and steel (carbon steel, stainless steel) using welding, electron beam welding and gas welding and other welding methods, welding can be achieved - brazed joints. This welding process is the essence of the steel side of the molten metal more, and molybdenum increase the side just heating without melting or melting little liquid metal is steel formed by infiltration brazed seam. This avoids the formation of iron and molybdenum compounds Fe3 Mo2 and FeMo, the joint area embrittlement problem is solved. Molybdenum steel electron beam butt welding directly, the weld metal composition mainly 20Mo-80Fe in the Mo base material is displayed on the side of the boundary eutectic α + ε, and the formation of large intermetallic Fe3 Mo2 and FeMo. Since the presence of intermetallic compounds, the weld metal brittle and easily cracks increases, reducing the performance of the joint, its poor weldability. Therefore, molybdenum and steel fusion welding, the joint strength is not high, you should avoid direct welding, it is generally used welding - brazing.