China-made high-strength steel plate HG70

 

    Uses: Wuhan Iron and Steel production of construction machinery HG70 high-strength steel, high strength, high toughness, good cold forming and welding properties; good corrosion and wear resistance. Adapted to hoisting cranes, heavy-duty vehicles, oil derrick, hg70-resistant wear corrosion resistance, performance levels in the domestic leading level. has the following advantages: high strength, high toughness, weldability, workability, and excellent wear and corrosion resistance high-strength welded structural steel Q460-G,, HG60, HG70, HG785E, HG980C, HG980D, HG980E size: 14 ~ 60 ~ 2450 * 6000 * 1600 ~ 12,000 use: This product is a high strength structural steel, high strength, good fatigue resistance; high toughness and low brittle transition temperature; good cold forming and welding properties; also has good resistance to corrosion and wear resistance of some suitable for various types of cranes, heavy-duty trucks, oil rigs, high-temperature fan, a large shovel, since unloading, and drills, hydraulic support coal, steel and so on.

      Similar to the grades: HG70 WH70A Q46HG70 WH70A Q460C JG590 HQ550.0C JG590 HQ550.HG70 WH70A Q460C JG590 HQ550

  HG70 welded steel analysis: from welding and welding performance with two aspects of the HG70 steel welding carried out a systematic study in restraint welding conditions, the use of E6015-D1-type electrode, the test plate with zero cold crack , indicating that welding with good performance. welded joints tensile, hardness and impact toughness test results show that the coarse grain zone of high hardness and low toughness, low intensity tempered zone, fine grain area has good mechanical properties. microstructure the results show that the formation of martensite welded joints, granular bainite, granular structure and other forms of organization. combined with organizational characteristics of their distribution, the mechanical properties of welded joints are discussed.